7Baggers

Weyerhaeuser Company
(NYSE:WY) 

WY stock logo

Weyerhaeuser Company, one of the world's largest private owners of timberlands, began operations in 1900. We own or control approximately 11 million acres of timberlands in the U.S. and manage additional timberlands under long-term licenses in Canada. We manage these timberlands on a sustainable bas...

Founded: 1900
Full Time Employees: 9,400
Sector: Real Estate
Industry: REIT-Specialty

Share this website to your friends
• Market Cap:
• Exchange:
• Shs Outstanding:
• Employees:
• Beta:
• Return on Equity (ROE) ttm:
• Return on Assets (ROA) ttm:
• EPS ttm:
• Book value per Share:
• Cash per Share:
• Current ast per Share:
• P/E ttm:
• P/E forward:
• P/E ttm high:
• P/E ttm low:
• P/S ttm:
• P/B ttm:
• P/FCF ttm:
• PEG ratio:
• Cash Ratio ttm:
• Quick Ratio ttm:
• Current Ratio ttm:
• Gross Mgn ttm:
• EBITDA Mgn ttm:
• Operating Mgn ttm:
• Net Income Mgn ttm:
• Trailing Div yield:
• Forward Div yield:
• Payout Ratio ttm:
• Ex-Dividend date:
• Target Price High:
• Target Price Low:
• Target Price Mean:
• Number of Analysts:
• Debt Ratio ttm:
• Debt to Equity ttm:
• Total Net Debt:
At a glance:
Bull Thesis:
Bear Thesis:
Main Competitors:
Moat:
Income Statements:
Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-28 2008-06-29 2008-03-30 2007-12-30 2007-09-30 2007-07-01 2007-04-01 2006-12-31 2006-09-24 2006-06-25 2006-03-26 2005-12-25 2005-09-25 2005-06-26 2005-03-27 2004-12-26 2004-09-26 2004-06-27 2004-03-28 2003-09-28 2003-06-29 
                                                                                               
      net sales
    1,727,000,000  1,717,000,000 1,884,000,000 1,763,000,000  1,681,000,000 1,939,000,000 1,796,000,000  2,022,000,000 1,997,000,000 1,881,000,000  2,276,000,000 2,973,000,000 3,112,000,000  2,345,000,000 3,144,000,000 2,506,000,000  2,110,000,000 1,631,000,000 1,728,000,000  1,671,000,000 1,692,000,000 1,643,000,000  1,910,000,000 2,065,000,000 1,865,000,000  1,872,000,000 1,808,000,000 1,693,000,000  1,709,000,000 1,655,000,000 1,835,000,000  1,820,000,000 1,807,000,000 1,721,000,000  1,915,000,000 1,964,000,000 1,984,000,000  2,181,000,000 2,141,000,000 1,951,000,000                                       
      yoy
    -2.04%  2.14% -2.84% -1.84%  -16.86% -2.90% -4.52%  -11.16% -32.83% -39.56%  -2.94% -5.44% 24.18%  11.14% 92.77% 45.02%  26.27% -3.61% 5.17%  -12.51% -18.06% -11.90%  2.03% 14.21% 10.16%  9.54% 9.24% -7.74%  -6.10% -8.41% 6.62%  -4.96% -7.99% -13.26%  -12.20% -8.27% 1.69%                                           
      qoq
      -8.86% 6.86%   -13.31% 7.96%   1.25% 6.17%   -23.44% -4.47%   -25.41% 25.46%   29.37% -5.61%   -1.24% 2.98%   -7.51% 10.72%   3.54% 6.79%   3.26% -9.81%   0.72% 5.00%   -2.49% -1.01%   1.87% 9.74%                                        
      costs of sales
    1,409,000,000  1,513,000,000 1,559,000,000 1,428,000,000  1,431,000,000 1,535,000,000 1,441,000,000  1,520,000,000 1,528,000,000 1,512,000,000  1,694,000,000 1,789,000,000 1,647,000,000  1,589,000,000 1,583,000,000 1,430,000,000  1,390,000,000 1,283,000,000 1,382,000,000  1,399,000,000 1,390,000,000 1,322,000,000                                                               
      gross margin
    318,000,000  204,000,000 325,000,000 335,000,000  250,000,000 404,000,000 355,000,000  502,000,000 469,000,000 369,000,000  582,000,000 1,184,000,000 1,465,000,000  756,000,000 1,561,000,000 1,076,000,000  720,000,000 348,000,000 346,000,000  272,000,000 302,000,000 321,000,000  458,000,000 618,000,000 517,000,000  498,000,000 472,000,000 421,000,000  395,000,000 397,000,000 360,000,000  375,000,000 333,000,000 336,000,000  411,000,000 465,000,000 428,000,000  453,000,000 477,000,000 418,000,000  348,000,000 277,000,000 204,000,000  286,000,000 267,000,000 254,000,000                               
      yoy
    -5.07%  -18.40% -19.55% -5.63%  -50.20% -13.86% -3.79%  -13.75% -60.39% -74.81%  -23.02% -24.15% 36.15%  5.00% 348.56% 210.98%  164.71% 15.23% 7.79%  -40.61% -51.13% -37.91%  -8.03% 30.93% 22.80%  26.08% 18.89% 16.94%  5.33% 19.22% 7.14%  -8.76% -28.39% -21.50%  -9.27% -2.52% 2.39%  30.17% 72.20% 104.90%  21.68% 3.75% -19.69%                                   
      qoq
      -37.23% -2.99%   -38.12% 13.80%   7.04% 27.10%   -50.84% -19.18%   -51.57% 45.07%   106.90% 0.58%   -9.93% -5.92%   -25.89% 19.54%   5.51% 12.11%   -0.50% 10.28%   12.61% -0.89%   -11.61% 8.64%   -5.03% 14.11%   25.63% 35.78%   7.12% 5.12%                                
      gross margin %
    18.41% NaN% 11.88% 17.25% 19.00% NaN% 14.87% 20.84% 19.77% NaN% 24.83% 23.49% 19.62% NaN% 25.57% 39.83% 47.08% NaN% 32.24% 49.65% 42.94% NaN% 34.12% 21.34% 20.02% NaN% 16.28% 17.85% 19.54% NaN% 23.98% 29.93% 27.72% NaN% 26.60% 26.11% 24.87% NaN% 23.11% 23.99% 19.62% NaN% 20.60% 18.43% 19.52% NaN% 21.46% 23.68% 21.57% NaN% 20.77% 22.28% 21.42% NaN% Infinity% Infinity% Infinity% NaN% Infinity% Infinity% Infinity% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% 
      selling expenses
    23,000,000  23,000,000 23,000,000 23,000,000  22,000,000 22,000,000 22,000,000  22,000,000 22,000,000 22,000,000  24,000,000 23,000,000 23,000,000  24,000,000 24,000,000 20,000,000  22,000,000 18,000,000 22,000,000  20,000,000 21,000,000 21,000,000  20,000,000 23,000,000 23,000,000  22,000,000 22,000,000 22,000,000  22,000,000 22,000,000 27,000,000  27,000,000 28,000,000 28,000,000  28,000,000 27,000,000 49,000,000  56,000,000 54,000,000 51,000,000          33,000,000 36,000,000 34,000,000  33,000,000 33,000,000 43,000,000 44,000,000 57,000,000 57,000,000 61,000,000 102,000,000 102,000,000 109,000,000 109,000,000 135,000,000 123,000,000 126,000,000 111,000,000 105,000,000 119,000,000 119,000,000 118,000,000 120,000,000 125,000,000 122,000,000 121,000,000   
      general and administrative expenses
    119,000,000  107,000,000 114,000,000 119,000,000  122,000,000 116,000,000 120,000,000  107,000,000 108,000,000 101,000,000  100,000,000 102,000,000 92,000,000  98,000,000 95,000,000 90,000,000  96,000,000 84,000,000 74,000,000  85,000,000 80,000,000 89,000,000  78,000,000 80,000,000 78,000,000  75,000,000 76,000,000 87,000,000  78,000,000 94,000,000 85,000,000  60,000,000 71,000,000 74,000,000  73,000,000 88,000,000 101,000,000  112,000,000 108,000,000 118,000,000          82,000,000 80,000,000 82,000,000  79,000,000 83,000,000 96,000,000 74,000,000 109,000,000 125,000,000 149,000,000 188,000,000 184,000,000 199,000,000 200,000,000 280,000,000 232,000,000 224,000,000 257,000,000 222,000,000 236,000,000 218,000,000 223,000,000 250,000,000 229,000,000 235,000,000 241,000,000   
      gain on sale of timberlands
    -58,000,000                                                                                           
      other operating
    -13,000,000  -49,000,000     -4,000,000                                                                      -6,500,000 -34,000,000 -23,000,000            
      operating income
    247,000,000  123,000,000 178,000,000 179,000,000  78,000,000 270,000,000 196,000,000  353,000,000 319,000,000 236,000,000  457,000,000 1,047,000,000 1,344,000,000  649,000,000 1,429,000,000 956,000,000  510,000,000 243,000,000 240,000,000  202,000,000 186,000,000 174,000,000  337,000,000 476,000,000 404,000,000  205,000,000 157,000,000 293,000,000  274,000,000 258,000,000 186,000,000  259,000,000 243,000,000 200,000,000  318,000,000 400,000,000 324,000,000  277,000,000 311,000,000 256,000,000  202,000,000 176,000,000 101,000,000  100,000,000 127,000,000 238,000,000  167,000,000 164,000,000 84,000,000   -62,000,000 -330,000,000 -1,539,000,000 -355,000,000 -383,000,000 -245,000,000 9,000,000 183,000,000 166,000,000 48,000,000 769,000,000 364,000,000 475,000,000 -409,000,000 -264,000,000 433,000,000 670,000,000 520,000,000 506,000,000 1,060,000,000 735,000,000 352,000,000 304,000,000 413,000,000 
      yoy
    37.99%  57.69% -34.07% -8.67%  -77.90% -15.36% -16.95%  -22.76% -69.53% -82.44%  -29.58% -26.73% 40.59%  27.25% 488.07% 298.33%  152.48% 30.65% 37.93%  -40.06% -60.92% -56.93%  64.39% 203.18% 37.88%  -25.18% -39.15% 57.53%  5.79% 6.17% -7.00%  -18.55% -39.25% -38.27%  14.80% 28.62% 26.56%  37.13% 76.70% 153.47%  102.00% 38.58% -57.56%  -40.12% -22.56% 183.33%   -364.52% -125.45%   -83.81% 34.69% -17200.00% -293.99% -330.72% -610.42% -98.83% -49.73% -65.05% -111.74% -391.29% -15.94% -29.10% -178.65% -152.17% -59.15% -8.84% 47.73% 66.45% 156.66%     
      qoq
      -30.90% -0.56%   -71.11% 37.76%   10.66% 35.17%   -56.35% -22.10%   -54.58% 49.48%   109.88% 1.25%   8.60% 6.90%   -29.20% 17.82%   30.57% -46.42%   6.20% 38.71%   6.58% 21.50%   -20.50% 23.46%   -10.93% 21.48%   14.77% 74.26%   -21.26% -46.64%   1.83% 95.24%    -81.21% -78.56% 333.52% -7.31% 56.33% -2822.22% -95.08% 10.24% 245.83% -93.76% 111.26% -23.37% -216.14% 54.92% -160.97% -35.37% 28.85% 2.77% -52.26% 44.22% 108.81% 15.79% -26.39%  
      operating margin %
    14.30% NaN% 7.16% 9.45% 10.15% NaN% 4.64% 13.92% 10.91% NaN% 17.46% 15.97% 12.55% NaN% 20.08% 35.22% 43.19% NaN% 27.68% 45.45% 38.15% NaN% 24.17% 14.90% 13.89% NaN% 12.09% 10.99% 10.59% NaN% 17.64% 23.05% 21.66% NaN% 10.95% 8.68% 17.31% NaN% 16.03% 15.59% 10.14% NaN% 14.23% 13.45% 11.62% NaN% 16.61% 20.37% 16.33% NaN% 12.70% 14.53% 13.12% NaN% Infinity% Infinity% Infinity% NaN% Infinity% Infinity% Infinity% NaN% Infinity% Infinity% Infinity% NaN% NaN% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% -Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% 
      non-operating pension and other post-employment benefit costs
    -14,000,000  -19,000,000 -19,000,000 -19,000,000  -10,000,000 -10,000,000 -11,000,000  -12,000,000 -12,000,000 -9,000,000  -12,000,000 -11,000,000 -15,000,000  -5,000,000 -1,000,000 -8,000,000                                                                       
      interest income and other
    4,000,000  6,000,000 6,000,000 5,000,000  14,000,000 13,000,000 16,000,000  24,000,000 18,000,000 12,000,000  9,000,000 1,000,000 -1,000,000  1,000,000 2,000,000 1,000,000  2,000,000 2,000,000 1,000,000  6,000,000 6,000,000 10,000,000  13,000,000 11,000,000 12,000,000  11,000,000 9,000,000 9,000,000  15,000,000 10,000,000 9,000,000  4,000,000 2,000,000 3,000,000  7,000,000 11,000,000 9,000,000  21,000,000 10,000,000 11,000,000  15,000,000 11,000,000 12,000,000  15,000,000 9,000,000 11,000,000  12,000,000 12,000,000 9,000,000  15,000,000 13,000,000 14,000,000 -82,000,000 30,000,000 117,000,000 13,000,000 18,000,000 20,000,000 25,000,000 20,000,000 19,000,000 17,000,000 15,000,000 19,000,000 24,000,000 143,000,000 20,000,000 27,000,000 9,000,000 7,000,000 5,000,000 3,000,000   
      interest expense, net of capitalized interest
    -66,000,000  -71,000,000 -66,000,000 -66,000,000  -69,000,000 -67,000,000 -67,000,000  -72,000,000 -70,000,000 -66,000,000  -67,000,000 -65,000,000 -72,000,000  -79,000,000 -78,000,000 -79,000,000  -111,000,000 -103,000,000 -85,000,000  -91,000,000 -91,000,000 -107,000,000  -93,000,000 -92,000,000 -93,000,000  -98,000,000 -100,000,000 -99,000,000  -114,000,000 -114,000,000 -97,000,000  -88,000,000 -88,000,000 -83,000,000  -88,000,000 -83,000,000 -83,000,000  -95,000,000 -81,000,000 -82,000,000  -87,000,000 -86,000,000 -87,000,000  -86,000,000 -117,000,000 -93,000,000                               
      earnings before income taxes
    171,000,000  39,000,000 99,000,000 99,000,000  13,000,000 206,000,000 134,000,000  293,000,000 255,000,000 173,000,000  387,000,000 972,000,000 980,000,000  566,000,000 1,352,000,000 870,000,000  392,000,000 132,000,000 147,000,000  102,000,000 91,000,000 -393,000,000  240,000,000 382,000,000 299,000,000        101,000,000  175,000,000 157,000,000 120,000,000  237,000,000 328,000,000 250,000,000  203,000,000 240,000,000 185,000,000        156,000,000  91,000,000 21,000,000 20,000,000                -492,000,000           
      income taxes
    -15,000,000  41,000,000 -12,000,000 -16,000,000  15,000,000 -33,000,000 -20,000,000  -54,000,000 -25,000,000 -22,000,000  -77,000,000 -184,000,000 -209,000,000  -84,000,000 -324,000,000 -189,000,000  -109,000,000 -60,000,000 3,000,000  -3,000,000 37,000,000 104,000,000  15,000,000 -65,000,000 -30,000,000  27,000,000 -34,000,000 -24,000,000  -22,000,000 -31,000,000 -20,000,000   -13,000,000 -19,000,000  -39,000,000 -59,000,000 -56,000,000  -36,000,000 -42,000,000 -41,000,000  -13,000,000 -17,000,000 15,000,000  104,000,000 4,000,000        32,000,000 176,000,000 143,500,000 221,000,000 214,000,000 137,000,000 54,000,000 -41,000,000 -18,000,000 -3,000,000 -213,000,000 -89,000,000 -82,000,000 -88,000,000 153,000,000 -120,000,000 -229,000,000 -128,000,000 -104,000,000 -306,000,000 -190,000,000 -62,000,000 -42,000,000 -81,000,000 
      net earnings
    156,000,000  80,000,000 87,000,000 83,000,000  28,000,000 173,000,000 114,000,000  239,000,000 230,000,000 151,000,000  310,000,000 788,000,000 771,000,000  482,000,000 1,028,000,000 681,000,000  283,000,000 72,000,000 150,000,000  99,000,000 128,000,000 -289,000,000  255,000,000 317,000,000 269,000,000  130,000,000 24,000,000 157,000,000  227,000,000 168,000,000 81,000,000  191,000,000 144,000,000 101,000,000  1,164,000,000 291,000,000 194,000,000  167,000,000 198,000,000       157,000,000 10,000,000 99,000,000  1,116,000,000 14,000,000   -5,000,000   -1,212,000,000 280,000,000 -96,000,000 -148,000,000 -98,000,000 101,000,000 32,000,000 755,000,000 508,000,000 211,000,000 314,000,000 -580,000,000 -211,000,000 285,000,000 420,000,000 239,000,000 199,000,000 594,000,000 369,000,000 121,000,000 82,000,000 157,000,000 
      yoy
    87.95%  185.71% -49.71% -27.19%  -88.28% -24.78% -24.50%  -22.90% -70.81% -80.42%  -35.68% -23.35% 13.22%  70.32% 1327.78% 354.00%  185.86% -43.75% -151.90%  -61.18% -59.62% -207.43%  96.15% 1220.83% 71.34%  -42.73% -85.71% 93.83%  18.85% 16.67% -19.80%  -83.59% -50.52% -47.94%  597.01% 46.97%           -85.93% -28.57%   -22420.00%    -101.79%   1136.73% 177.23% -400.00% -119.60% -119.29% -52.13% -89.81% -230.17% -340.76% -25.96% -25.24% -342.68% -206.03% -52.02% 13.82% 97.52% 142.68% 278.34%     
      qoq
      -8.05% 4.82%   -83.82% 51.75%   3.91% 52.32%   -60.66% 2.20%   -53.11% 50.95%   293.06% -52.00%   -22.66% -144.29%   -19.56% 17.84%   441.67% -84.71%   35.12% 107.41%   32.64% 42.57%   300.00% 50.00%   -15.66%        1470.00% -89.90%   7871.43%       -532.86% -391.67% -35.14% 51.02% -197.03% 215.63% -95.76% 48.62% 140.76% -32.80% -154.14% 174.88% -174.04% -32.14% 75.73% 20.10% -66.50% 60.98% 204.96% 47.56% -47.77%  
      net income margin %
    9.03% NaN% 4.66% 4.62% 4.71% NaN% 1.67% 8.92% 6.35% NaN% 11.82% 11.52% 8.03% NaN% 13.62% 26.51% 24.78% NaN% 20.55% 32.70% 27.17% NaN% 13.41% 4.41% 8.68% NaN% 5.92% 7.57% -17.59% NaN% 13.35% 15.35% 14.42% NaN% 6.94% 1.33% 9.27% NaN% 13.28% 10.15% 4.41% NaN% 10.49% 7.97% 5.87% NaN% 60.78% 14.82% 9.78% NaN% 7.66% 9.25% 0% NaN% NaN% NaN% NaN% NaN% Infinity% Infinity% Infinity% NaN% Infinity% Infinity% NaN% NaN% -Infinity% NaN% NaN% -Infinity% Infinity% -Infinity% -Infinity% -Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% -Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% 
      earnings per share, basic and diluted
    0.22  0.11 0.12 0.11  0.04 0.24 0.16  0.33 0.31 0.21  0.42 1.06 1.03  0.64 1.37 0.91  0.38 0.1 0.2  0.13 0.17 -0.39  0.34 0.42 0.35                                                           
      weighted-average shares outstanding
                                                                                               
      basic
    721,290 723,162 721,598 723,682 726,143 728,398 727,621 729,026 730,043 731,654 731,046 732,021 733,163 741,904 740,058 744,542 747,507 749,496 750,105 750,127 748,718 746,931 746,996 746,896 746,534 745,897 745,626 745,486 746,603 754,556 754,986 757,829 756,815 753,085 753,535 752,630 750,665 718,560 749,587 743,140 632,004 516,371 514,301 516,626 523,426 556,705 531,913 586,061 584,915 566,329 582,828 552,855 545,234 539,140 539,094 537,966 537,368 537,534 537,969 538,599 537,140 319,976 317,369 211,600 211,440 211,342 211,357 211,356                        
      diluted
    721,671 723,567 722,012 723,927 726,566 728,957 728,180 729,341 730,558 732,222 731,742 732,362 733,546 742,953 740,975 745,582 748,823 750,983 751,443 751,508 750,024 747,899 748,450 746,984 747,155 745,897 746,514 746,232 746,603 756,827 757,389 760,533 759,462 756,666 756,903 756,451 754,747 722,401 754,044 747,701 634,872 519,618 517,088 519,804 527,423 560,899 536,012 589,766 589,312 571,239 587,179 557,588 550,785 542,310 542,311 540,033 539,728 539,879 539,827 541,095 540,476 321,096 318,360 212,103 211,440 211,342 211,357 211,356                        
      other operating costs
       10,000,000 14,000,000  28,000,000  17,000,000  20,000,000 20,000,000 10,000,000  1,000,000 12,000,000 6,000,000  -15,000,000 13,000,000 10,000,000  92,000,000 3,000,000 10,000,000  32,000,000 13,000,000 36,000,000  21,000,000 17,000,000 28,000,000  -12,000,000 62,000,000 2,000,000   5,000,000 -61,000,000  21,000,000  15,000,000          -28,000,000    3,000,000     2,000,000 -71,000,000    6,000,000 31,000,000 50,000,000 -16,000,000 44,000,000 -34,000,000 1,000,000 5,000,000 21,000,000    30,000,000 3,000,000 -32,000,000 -40,000,000 9,000,000 4,000,000 -318,000,000 42,000,000 14,000,000   
      loss on debt extinguishment
                    -276,000,000                                                                           
      product remediation recoveries
                              -68,000,000                                                                 
      non-operating pension and other postretirement benefit costs
                          -9,000,000 -10,000,000 -9,000,000  -15,000,000 -10,000,000 -470,000,000  -17,000,000 -13,000,000 -24,000,000                                                           
      research and development expenses
                              1,000,000 2,000,000 1,000,000  2,000,000 2,000,000 2,000,000  4,000,000 4,000,000 4,000,000  5,000,000 4,000,000 6,000,000  6,000,000 6,000,000 5,000,000  5,000,000 7,000,000 7,000,000  8,000,000 8,000,000 7,000,000  8,000,000 8,000,000 7,000,000  7,000,000 7,000,000 7,000,000  8,000,000 8,000,000 8,000,000  10,000,000 15,000,000 13,000,000 15,000,000 14,000,000 18,000,000 17,000,000 19,000,000 18,000,000 18,000,000 16,000,000 15,000,000 23,000,000 15,000,000 16,000,000 17,000,000 18,000,000 12,000,000 14,000,000 17,000,000 13,000,000 13,000,000 12,000,000   
      costs of products sold
                                  1,452,000,000 1,447,000,000 1,348,000,000  1,374,000,000 1,336,000,000 1,272,000,000  1,314,000,000 1,258,000,000                       1,065,000,000 1,175,000,000 1,008,000,000  973,000,000 1,050,000,000 978,000,000 1,145,000,000 1,413,000,000 1,518,000,000 1,443,000,000 2,660,000,000 2,845,000,000 3,085,000,000 2,785,000,000 3,783,000,000 3,590,000,000 3,838,000,000 3,719,000,000 3,900,000,000 3,934,000,000 3,974,000,000 3,652,000,000 3,894,000,000 3,894,000,000 3,922,000,000 3,539,000,000   
      charges for integration and restructuring, closures and asset impairments
                                    2,000,000  14,000,000 151,000,000 13,000,000  16,000,000 14,000,000 117,000,000                                                   
      charges
                                   20,000,000 -20,000,000                                                           
      dividends paid per share
                                  0.34 0.32 0.32  0.31 0.31 0.31  0.31 0.31 0.31  0.31 0.29 0.29  0.29      0.17  0.15 0.15 0.15  0.15 0.15 0.15  26.46 0.05 0.05  0.05 0.25 0.25 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.5 0.5 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 
      charges for product remediation
                                      190,000,000                                                         
      equity earnings from joint ventures
                                      1,000,000    9,000,000 7,000,000 3,000,000                                                   
      non-operating pension and other postretirement benefit (costs) credits
                                      -16,000,000 -8,000,000 -22,000,000                                                       
      earnings from continuing operations before income taxes
                                      103,000,000 58,000,000 181,000,000  184,000,000 161,000,000               130,000,000 101,000,000 26,000,000  29,000,000 19,000,000       30,000,000       -98,000,000 115,000,000 55,000,000 -13,000,000 669,000,000 274,000,000 382,000,000  325,000,000 406,000,000 528,000,000 366,000,000       
      earnings from continuing operations
                                      130,000,000 24,000,000 157,000,000  162,000,000 130,000,000   191,000,000 144,000,000 101,000,000  198,000,000 269,000,000       117,000,000 84,000,000 41,000,000  133,000,000 23,000,000              -44,000,000 74,000,000 37,000,000 -16,000,000 456,000,000 185,000,000 300,000,000  -822,999,997.62 286,000,000 299,000,000 238,000,000       
      earnings from discontinued operations, net of income taxes
                                          65,000,000 38,000,000       966,000,000 22,000,000           24,000,000 -13,000,000                                
      dividends on preference shares
                                           -11,000,000 -11,000,000  -11,000,000 -11,000,000 -11,000,000  -11,000,000 -11,000,000 -11,000,000  -10,000,000 -2,000,000                                        
      net earnings attributable to weyerhaeuser common shareholders
                                      130,000,000 24,000,000 157,000,000  227,000,000 157,000,000 70,000,000  180,000,000 133,000,000 90,000,000  1,153,000,000 280,000,000 183,000,000  157,000,000 196,000,000 144,000,000  117,000,000 84,000,000 41,000,000  157,000,000 10,000,000 99,000,000  1,116,000,000 14,000,000                            
      earnings per share attributable to weyerhaeuser common shareholders, basic
                                                                                               
      continuing operations
                                      0.17 0.03 0.21  0.22 0.16   0.35 0.26 0.17  0.35 0.44       0.22 0.16 0.08  0.25 0.04        -0.5 -1.25 -5.57 -0.94 -0.98 -1.08 -0.2 0.34 0.17 -0.07 1.86 0.75 1.21  0.84 1.16 1.23        
      discontinued operations
                                          0.08 0.05       1.82 0.04           0.04 -0.02          -0.17 2.27 0.53 0.38 -0.2 0.13 -0.02 3.31 0.21 0.1 0.06  0.125  0.49        
      net earnings per share
                                      0.17 0.03 0.21  0.3 0.21   0.35 0.26 0.17  2.17 0.48       0.22 0.16 0.08  0.29 0.02                  -0.055 0.85 1.27  0.965 1.16 1.72        
      earnings per share attributable to weyerhaeuser common shareholders, diluted
                                                                                               
      earnings per share attributable to weyerhaeuser common shareholders, basic and diluted
                                            0.11        0.31    0.26                                       
      cost of products sold
                                            1,475,000,000  1,445,000,000 1,474,000,000 1,385,000,000  1,504,000,000 1,499,000,000 1,556,000,000  1,728,000,000 1,664,000,000 1,533,000,000  1,424,000,000 1,516,000,000 1,290,000,000  1,283,000,000 1,343,000,000 1,324,000,000                               
      charges for restructuring, closures and impairments
                                              2,000,000  14,000,000  10,000,000 8,000,000 21,000,000  2,000,000 6,000,000 4,000,000  10,000,000 4,000,000 12,000,000  41,000,000 7,000,000 4,000,000                               
      income tax benefit
                                              16,000,000                    1,025,000,000 -7,000,000 -38,000,000  -35,000,000             -7,000,000  10,250,000  42,000,000        
      other operating income
                                               -15,000,000   -23,000,000 -65,000,000 -74,000,000  -2,000,000 -10,000,000 -18,000,000   -53,000,000 -66,000,000   -19,000,000 -174,000,000  -24,000,000 -8,000,000   -184,000,000 -77,000,000  -1,500,000 -4,000,000  -6,000,000                   
      basic earnings per share attributable to weyerhaeuser common shareholders
                                                      0.27 0.35         0.18  3.52 0.07                            
      diluted earnings per share attributable to weyerhaeuser common shareholders
                                                      0.27 0.35         0.18  3.5 0.07                            
      dividends paid per common share
                                                      0.22 0.2                                        
      net sales and revenues
                                                          1,772,000,000 1,793,000,000 1,494,000,000  1,569,000,000 1,610,000,000 1,578,000,000                               
      selling, general and administrative expenses
                                                          156,000,000 142,000,000 150,000,000  135,000,000 145,000,000 179,000,000                               
      loss from discontinued operations, net of income taxes
                                                                                               
      less: net earnings attributable to noncontrolling interests
                                                                                               
      income tax provision
                                                                -57,000,000                               
      net sales and revenues:
                                                                                               
      forest products
                                                                  1,454,000,000 1,548,000,000 1,268,000,000  1,211,000,000 1,192,000,000 1,103,000,000                       
      real estate
                                                                  210,000,000 257,000,000 151,000,000  196,000,000 199,000,000 172,000,000 354,000,000 329,000,000 354,000,000 371,000,000                   
      total net sales and revenues
                                                                  1,664,000,000 1,805,000,000 1,419,000,000  1,407,000,000 1,391,000,000 1,275,000,000 1,695,000,000 2,107,000,000 2,174,000,000 2,096,000,000 3,937,000,000 4,146,000,000 4,334,000,000 3,891,000,000 5,655,000,000 5,328,000,000 5,687,000,000 5,376,000,000 5,783,000,000 5,604,000,000 5,838,000,000 5,404,000,000 5,886,000,000 5,849,000,000 5,893,000,000 5,037,000,000 5,184,000,000 4,930,000,000 
      costs and expenses:
                                                                                               
      forest products:
                                                                                               
      alternative fuel mixture credits
                                                                      -122,000,000 -107,000,000                        
      depreciation, depletion and amortization
                                                                  120,000,000 115,000,000 116,000,000  123,000,000 125,000,000 122,000,000 136,000,000 148,000,000 146,000,000 147,000,000 215,000,000 230,000,000 223,000,000 232,000,000 331,000,000 305,000,000 307,000,000 312,000,000 327,000,000 329,000,000 326,000,000 325,000,000       
      charges for restructuring and closures
                                                                  14,000,000 2,000,000   67,000,000 46,000,000 82,000,000                       
      impairment of goodwill and other assets
                                                                  2,000,000  1,000,000  36,000,000 20,000,000 18,000,000                       
      forest products: - sum
                                                                  1,300,000,000 1,408,000,000 1,178,000,000  1,015,000,000 1,188,000,000 1,358,000,000                       
      real estate:
                                                                                               
      costs and operating expenses
                                                                  158,000,000 189,000,000 121,000,000  172,000,000 164,000,000 151,000,000 506,000,000 369,000,000 321,000,000 327,000,000 507,000,000 451,000,000 415,000,000 379,000,000 768,000,000 537,000,000 555,000,000 481,000,000 677,000,000 401,000,000 441,000,000 426,000,000 647,000,000 414,000,000 381,000,000 321,000,000   
      depreciation and amortization
                                                                  4,000,000 5,000,000 3,000,000  3,000,000 4,000,000 4,000,000 4,000,000 5,000,000 5,000,000 4,000,000 6,000,000 6,000,000 5,000,000 6,000,000 8,000,000 10,000,000 4,000,000 3,000,000 5,000,000 4,000,000 4,000,000 3,000,000 5,000,000 3,000,000 4,000,000 2,000,000   
      other operating costs (income)
                                                                  -1,000,000    13,000,000 7,000,000         -4,000,000               
      impairment of long-lived assets and other related charges
                                                                   1,000,000 1,000,000  46,000,000 53,000,000 42,000,000                       
      real estate: - sum
                                                                  197,000,000 233,000,000 157,000,000  269,000,000 265,000,000 247,000,000 943,000,000 654,000,000 638,000,000 423,000,000                   
      total costs and expenses
                                                                  1,497,000,000 1,641,000,000 1,335,000,000  1,284,000,000 1,453,000,000 1,605,000,000 3,234,000,000 2,462,000,000 2,557,000,000 2,341,000,000 3,928,000,000 3,963,000,000 4,168,000,000 3,843,000,000 4,886,000,000 4,964,000,000 5,212,000,000 5,785,000,000 6,047,000,000 5,171,000,000 5,168,000,000 4,884,000,000 5,380,000,000 4,789,000,000 5,158,000,000 4,685,000,000 4,880,000,000 4,517,000,000 
      interest expenses and other:
                                                                                               
      interest expense incurred
                                                                  -98,000,000 -105,000,000 -106,000,000  -107,000,000 -107,000,000 -108,000,000 -121,000,000 -126,000,000 -126,000,000 -132,000,000 -133,000,000 -131,000,000 -179,000,000 -131,000,000 -162,000,000 -149,000,000 -152,000,000 -152,000,000 -171,000,000 -193,000,000 -179,000,000 -196,000,000 -241,000,000 -184,000,000 -218,000,000 -195,000,000   
      less: interest capitalized
                                                                  4,000,000  1,000,000  1,000,000 2,000,000 2,000,000 14,000,000 11,000,000 21,000,000 24,000,000 22,000,000 29,000,000 29,000,000 30,000,000 14,250,000 21,000,000 20,000,000 16,000,000           
      loss on early extinguishment of debt
                                                                  -1,000,000 -49,000,000                            
      equity in loss of equity affiliates
                                                                                               
      equity in income of equity affiliates
                                                                  7,000,000 -3,000,000 -6,000,000                           
      impairment of investments and other related charges
                                                                       -6,000,000 -26,000,000                       
      less: loss attributable to noncontrolling interests
                                                                    -2,000,000                           
      interest expense and other:
                                                                                               
      net income
                                                                    -18,000,000   -116,000,000 -266,000,000                       
      net loss attributable to weyerhaeuser common shareholders
                                                                    -20,000,000   -106,000,000 -264,000,000                       
      basic and diluted earnings per share attributable to weyerhaeuser common shareholders
                                                                    -0.1                           
      operating earnings
                                                                      123,000,000                         
      gain on uruguay restructuring
                                                                                               
      equity in income of affiliates
                                                                      -4,000,000  3,000,000 7,000,000 10,000,000 3,000,000  -3,000,000 5,000,000 1,000,000 -1,000,000 -2,000,000  6,000,000 3,000,000 -12,000,000 2,000,000 4,000,000  3,000,000 4,000,000 7,000,000    
      equity in income of unconsolidated entities
                                                                      1,000,000 11,000,000 2,000,000 6,000,000 14,000,000 8,000,000 -23,000,000 -13,000,000 8,000,000 12,000,000 18,000,000 8,000,000 14,000,000 15,000,000 21,000,000 20,000,000 14,000,000 13,000,000 10,000,000 11,000,000 12,000,000 20,000,000 9,000,000   
      loss from continuing operations
                                                                      -5,000,000 -116,000,000 -266,000,000 -160,500,000 -200,000,000 -207,000,000 -229,000,000                   
      discontinued operations, net of income taxes
                                                                         -35,000,000 480,000,000 111,000,000 81,000,000 -54,000,000 27,000,000 -5,000,000 771,000,000               
      less: net loss attributable to noncontrolling interests
                                                                      5,000,000 10,000,000 2,000,000                       
      loss from continuing operations before income taxes
                                                                       -148,000,000 -442,000,000 -304,000,000 -421,000,000 -421,000,000 -366,000,000                   
      net income per share
                                                                       -0.5                        
      weyerhaeuser
                                                                         1,341,000,000 1,778,000,000 1,820,000,000 1,725,000,000 3,222,000,000 3,548,000,000 3,775,000,000 3,404,000,000 4,505,000,000 4,579,000,000 4,941,000,000 4,686,000,000 4,767,000,000 5,008,000,000 5,190,000,000 4,749,000,000 4,975,000,000 5,258,000,000 5,369,000,000 4,568,000,000 4,650,000,000 4,498,000,000 
      weyerhaeuser:
                                                                                               
      charges for restructuring
                                                                         15,000,000 11,000,000 39,000,000 1,000,000 16,000,000 16,000,000 2,000,000   4,000,000 18,000,000            
      charges for closure of facilities
                                                                         10,000,000  30,000,000 53,000,000 81,000,000 19,000,000 19,000,000 5,000,000 51,000,000 43,000,000 17,000,000 1,000,000 656,000,000 29,000,000 3,000,000 5,000,000  13,000,000  1,000,000   
      impairment of goodwill
                                                                         821,000,000 6,000,000 2,000,000 3,000,000 7,000,000 1,000,000  22,000,000   3,000,000 746,000,000           
      weyerhaeuser: - sum
                                                                         2,291,000,000 1,808,000,000 1,919,000,000 1,918,000,000 3,254,000,000 3,416,000,000 3,660,000,000 3,393,000,000 4,011,000,000 4,329,000,000 4,571,000,000 5,236,000,000 5,256,000,000 4,704,000,000 4,664,000,000 4,397,000,000 4,665,000,000 4,340,000,000 4,723,000,000 4,316,000,000   
      charge for impairment of long-lived assets
                                                                         126,250,000 226,000,000 246,000,000    12,000,000  19,000,000 14,000,000             
      impairments and other investment-related charges
                                                                         -20,250,000 -6,000,000                     
      basic earnings per share
                                                                                               
      diluted earnings per share
                                                                                               
      charge for impairments of investments
                                                                           -57,000,000                    
      impairment of long-lived assets
                                                                            33,000,000                   
      equity in loss of affiliates
                                                                            -4,000,000                   
      real estate and related assets
                                                                             411,000,000 598,000,000 559,000,000 487,000,000 1,150,000,000 749,000,000 746,000,000 690,000,000 1,016,000,000 596,000,000 648,000,000 655,000,000 911,000,000 591,000,000 524,000,000 469,000,000 534,000,000 432,000,000 
      real estate and related assets:
                                                                                               
      charges for impairment of long-lived assets
                                                                             8,750,000 23,000,000                 
      real estate and related assets: - sum
                                                                             376,250,000 547,000,000 508,000,000 450,000,000 875,000,000 635,000,000 641,000,000 549,000,000 791,000,000 467,000,000 504,000,000 487,000,000 715,000,000 449,000,000 435,000,000 369,000,000   
      charges (reversals) for restructuring
                                                                                3,000,000               
      taxes other than payroll and income taxes
                                                                                 33,250,000 43,000,000 46,000,000 44,000,000 16,000,000 69,000,000 48,000,000 46,000,000 48,000,000 50,000,000 48,000,000 48,000,000   
      other operating (income) costs
                                                                                 -500,000 -2,000,000 3,000,000            
      earnings from discontinued operations
                                                                                 20,750,000 55,000,000 21,000,000  20,000,000 -1,000,000 79,000,000        
      income tax expense
                                                                                 -9,250,000 -29,000,000             
      basic net earnings per share
                                                                                               
      diluted net earnings per share
                                                                                               
      basic and diluted net earnings per share
                                                                                    -2.36           
      charges for integration and restructuring
                                                                                     10,000,000 2,000,000 4,000,000 5,000,000 3,000,000 8,000,000 13,000,000 15,000,000   
      less interest capitalized
                                                                                     4,000,000 3,000,000 2,000,000  5,000,000  1,000,000 3,000,000   
      earnings from discontinued operations, net of taxes of 1 and 5
                                                                                        1,000,000       
      depreciation, amortization and fee stumpage
                                                                                         244,750,000 326,000,000 328,000,000 325,000,000   
      earnings before income taxes and cumulative effect of a change in accounting principle
                                                                                         303,000,000 900,000,000 559,000,000 183,000,000 124,000,000 238,000,000 
      earnings before cumulative effect of a change in accounting principle
                                                                                         199,000,000 594,000,000 369,000,000 121,000,000 82,000,000 157,000,000 
      cumulative effect of a change in accounting principle
                                                                                               
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-28 2008-06-29 2008-03-30 2007-12-30 2007-09-30 2007-07-01 2007-04-01 2006-12-31 2006-09-24 2006-06-25 2006-03-26 2005-12-25 2005-09-25 2005-06-26 2005-03-27 2004-12-26 2004-09-26 2004-06-27 2004-03-28 2003-09-28 2003-06-29 
                                                                                                 
        assets
                                                                                                 
        current assets:
                                                                                                 
        cash and cash equivalents
      299,000,000 464,000,000 401,000,000 592,000,000 560,000,000 684,000,000 877,000,000 997,000,000 871,000,000 1,164,000,000 1,173,000,000 1,095,000,000 797,000,000 1,581,000,000 1,920,000,000 1,723,000,000 1,205,000,000 1,879,000,000 2,326,000,000 1,777,000,000 1,016,000,000 495,000,000 787,000,000 643,000,000 1,458,000,000 139,000,000 153,000,000 212,000,000 259,000,000 334,000,000 348,000,000 901,000,000 598,000,000 824,000,000 497,000,000 701,000,000 455,000,000 676,000,000 769,000,000 485,000,000 415,000,000 1,012,000,000 1,048,000,000 1,121,000,000 1,158,000,000 1,580,000,000 1,620,000,000 845,000,000 780,000,000 835,000,000 898,000,000 908,000,000 635,000,000 893,000,000 602,000,000 857,000,000 726,000,000 950,000,000 969,000,000 877,000,000 1,459,000,000 1,466,000,000 1,366,000,000 1,839,000,000 2,143,000,000 1,862,000,000 1,624,000,000 1,745,000,000 1,653,000,000 2,288,000,000 4,096,000,000 73,000,000 53,000,000 93,000,000 72,000,000 208,000,000 1,172,000,000 223,000,000 114,000,000 113,000,000 105,000,000 818,000,000 885,000,000 1,704,000,000 402,000,000 1,044,000,000 1,227,000,000 725,000,000 74,000,000 25,000,000 11,000,000 
        receivables
      396,000,000 303,000,000 353,000,000 369,000,000 382,000,000 306,000,000 373,000,000 410,000,000 405,000,000 354,000,000 443,000,000 462,000,000 440,000,000 357,000,000 425,000,000 547,000,000 745,000,000 507,000,000 497,000,000 702,000,000 589,000,000 450,000,000 500,000,000 420,000,000 390,000,000 309,000,000                                                                  
        receivables for taxes
      8,000,000 10,000,000 8,000,000 9,000,000 13,000,000 9,000,000 10,000,000 10,000,000 13,000,000 10,000,000 18,000,000 18,000,000 28,000,000 42,000,000 15,000,000 6,000,000 8,000,000 24,000,000 72,000,000 7,000,000 7,000,000 82,000,000 48,000,000 48,000,000 24,000,000 98,000,000 149,000,000 157,000,000 163,000,000 137,000,000 140,000,000 23,000,000 24,000,000 14,000,000 65,000,000 8,000,000 10,000,000 84,000,000 5,000,000 7,000,000 25,000,000 30,000,000 14,000,000 12,000,000 23,000,000 25,000,000 23,000,000 37,000,000 34,000,000 101,000,000 31,000,000 43,000,000 65,000,000 95,000,000 97,000,000       19,000,000 81,000,000 51,000,000 34,000,000 602,000,000 299,000,000 336,000,000 273,000,000                       
        inventories
      659,000,000 593,000,000 588,000,000 610,000,000 675,000,000 607,000,000 592,000,000 614,000,000 630,000,000 566,000,000 528,000,000 539,000,000 586,000,000 550,000,000 542,000,000 571,000,000 611,000,000 520,000,000 499,000,000 499,000,000 505,000,000 443,000,000 411,000,000 409,000,000 480,000,000 416,000,000 393,000,000 425,000,000 451,000,000 389,000,000 389,000,000 414,000,000 445,000,000 383,000,000 340,000,000 349,000,000 386,000,000 358,000,000 368,000,000 387,000,000 677,000,000 568,000,000 590,000,000 603,000,000 645,000,000 595,000,000 578,000,000 596,000,000 626,000,000 542,000,000 533,000,000 561,000,000 596,000,000 531,000,000 512,000,000 487,000,000 517,000,000 476,000,000 468,000,000 513,000,000 544,000,000 478,000,000 479,000,000 472,000,000 515,000,000 447,000,000 498,000,000 530,000,000 708,000,000 737,000,000 712,000,000 732,000,000 840,000,000 1,255,000,000 1,323,000,000 1,308,000,000 1,437,000,000 1,929,000,000 1,983,000,000 1,911,000,000 2,068,000,000 1,917,000,000 1,992,000,000 2,018,000,000 2,122,000,000 2,045,000,000 1,998,000,000 1,936,000,000 2,020,000,000   
        assets held for sale
       128,000,000 141,000,000                 229,000,000   199,000,000   140,000,000 251,000,000         411,000,000                                         114,000,000               
        prepaid expenses and other current assets
      141,000,000 154,000,000 121,000,000 178,000,000 141,000,000 142,000,000 142,000,000 152,000,000 192,000,000 219,000,000 186,000,000 188,000,000 202,000,000 216,000,000 146,000,000 165,000,000 206,000,000 205,000,000 146,000,000 141,000,000 141,000,000 139,000,000 101,000,000 131,000,000 141,000,000 147,000,000 141,000,000 132,000,000 141,000,000 152,000,000 140,000,000 146,000,000 118,000,000 98,000,000 130,000,000 177,000,000 142,000,000 114,000,000 150,000,000 132,000,000 135,000,000                                                   
        total current assets
      1,503,000,000 1,652,000,000 1,612,000,000 1,758,000,000 1,771,000,000 1,748,000,000 1,994,000,000 2,183,000,000 2,111,000,000 2,313,000,000 3,016,000,000 2,967,000,000 2,053,000,000 2,746,000,000 3,048,000,000 3,012,000,000 2,775,000,000 3,135,000,000 3,540,000,000 3,355,000,000 2,258,000,000 1,609,000,000 2,046,000,000 1,651,000,000 2,493,000,000 1,611,000,000 1,817,000,000 1,696,000,000 1,774,000,000 1,602,000,000 1,714,000,000 2,228,000,000 1,919,000,000 1,715,000,000 1,517,000,000 2,088,000,000 1,465,000,000 1,622,000,000 3,356,000,000 3,328,000,000 1,830,000,000 2,174,000,000 2,502,000,000 2,517,000,000 2,652,000,000 3,033,000,000 3,012,000,000 3,290,000,000 2,315,000,000 2,326,000,000 2,275,000,000 2,341,000,000 2,202,000,000 2,135,000,000 1,915,000,000 2,024,000,000 1,939,000,000 2,065,000,000 2,091,000,000 2,205,000,000 2,748,000,000 2,589,000,000 2,612,000,000 3,073,000,000 3,480,000,000 3,667,000,000 3,393,000,000 3,601,000,000 3,643,000,000 4,133,000,000 6,465,000,000 3,093,000,000 3,113,000,000 3,014,000,000 3,220,000,000 3,402,000,000 4,473,000,000 4,121,000,000 4,441,000,000 4,527,000,000 4,434,000,000 4,876,000,000 5,424,000,000 6,342,000,000 6,117,000,000 5,293,000,000 5,556,000,000 5,009,000,000 4,266,000,000   
        property and equipment, less accumulated depreciation of 4,203 and 4,158
      2,376,000,000                                                                                           
        construction in progress
      397,000,000 337,000,000 360,000,000 316,000,000 291,000,000 287,000,000 316,000,000 303,000,000 243,000,000 270,000,000 311,000,000 260,000,000 222,000,000 222,000,000 245,000,000 233,000,000 203,000,000 175,000,000 169,000,000 102,000,000 91,000,000 73,000,000 119,000,000 110,000,000 153,000,000 130,000,000 187,000,000 134,000,000 102,000,000 136,000,000 255,000,000 282,000,000 275,000,000 225,000,000 225,000,000 190,000,000 230,000,000 213,000,000 202,000,000 172,000,000 223,000,000 195,000,000 231,000,000 171,000,000 171,000,000 131,000,000 215,000,000 157,000,000 140,000,000 112,000,000 101,000,000 72,000,000 56,000,000 50,000,000 220,000,000 208,000,000 192,000,000 145,000,000 122,000,000 137,000,000 149,000,000 123,000,000 86,000,000 77,000,000 69,000,000 52,000,000 108,000,000 108,000,000 95,000,000 104,000,000 121,000,000 239,000,000 324,000,000 442,000,000 412,000,000 544,000,000 467,000,000 407,000,000 640,000,000 607,000,000 648,000,000 533,000,000 544,000,000 451,000,000 324,000,000 269,000,000 242,000,000 279,000,000 251,000,000 514,000,000 669,000,000 
        timber and timberlands at cost, less depletion
      11,475,000,000 11,533,000,000 11,709,000,000 11,452,000,000 11,506,000,000 11,551,000,000 11,502,000,000 11,475,000,000 11,481,000,000 11,528,000,000 11,521,000,000 11,512,000,000 11,564,000,000 11,604,000,000 11,681,000,000 11,706,000,000 11,469,000,000 11,510,000,000 11,606,000,000 11,643,000,000 11,776,000,000 11,827,000,000 11,465,000,000 11,780,000,000 11,847,000,000 11,929,000,000 12,192,000,000 12,516,000,000 12,586,000,000 12,671,000,000 12,727,000,000 12,790,000,000 12,888,000,000 12,954,000,000                                                          
        minerals and mineral rights, less depletion
      176,000,000 177,000,000 180,000,000 184,000,000 187,000,000 189,000,000 192,000,000 194,000,000 198,000,000 200,000,000 203,000,000 207,000,000 211,000,000 214,000,000 245,000,000 248,000,000 252,000,000 255,000,000 258,000,000 262,000,000 265,000,000 268,000,000 271,000,000 275,000,000 278,000,000 281,000,000 284,000,000 288,000,000 291,000,000 294,000,000 297,000,000 302,000,000 306,000,000 308,000,000 312,000,000 314,000,000 317,000,000 319,000,000                                                      
        deferred tax assets
      91,000,000 97,000,000 62,000,000 23,000,000 23,000,000 24,000,000 13,000,000 13,000,000 14,000,000 15,000,000 8,000,000 8,000,000 8,000,000 8,000,000 10,000,000 11,000,000 15,000,000 17,000,000 52,000,000 71,000,000 106,000,000 120,000,000 44,000,000 65,000,000 147,000,000 72,000,000 31,000,000 33,000,000 18,000,000 15,000,000 71,000,000 168,000,000 244,000,000 268,000,000 240,000,000 261,000,000 287,000,000 293,000,000 122,000,000 250,000,000 15,000,000 4,000,000 218,000,000 162,000,000 192,000,000 228,000,000 111,000,000 128,000,000 207,000,000 151,000,000 113,000,000 144,000,000 189,000,000 65,000,000 117,000,000 100,000,000 113,000,000 81,000,000 106,000,000 167,000,000 155,000,000 113,000,000 122,000,000 136,000,000 136,000,000 109,000,000 150,000,000 151,000,000 150,000,000 149,000,000 164,000,000 150,000,000 150,000,000 156,000,000                  
        other assets
      383,000,000 397,000,000 413,000,000 424,000,000 409,000,000 408,000,000 404,000,000 392,000,000 426,000,000 388,000,000 385,000,000 383,000,000 365,000,000 375,000,000 364,000,000 370,000,000 376,000,000 503,000,000 543,000,000 432,000,000 407,000,000 401,000,000 466,000,000 415,000,000 399,000,000 414,000,000 461,000,000 461,000,000 444,000,000 312,000,000 289,000,000 279,000,000 278,000,000 285,000,000 259,000,000 246,000,000 229,000,000 224,000,000 317,000,000 424,000,000 409,000,000 318,000,000 267,000,000 274,000,000 269,000,000 289,000,000 292,000,000 419,000,000 429,000,000 403,000,000 325,000,000 349,000,000 351,000,000 358,000,000 352,000,000 435,000,000 442,000,000 444,000,000 558,000,000 511,000,000 424,000,000 120,000,000 132,000,000 123,000,000 122,000,000 126,000,000 156,000,000 180,000,000 183,000,000 195,000,000 615,000,000 581,000,000 458,000,000 473,000,000 423,000,000 383,000,000 396,000,000 423,000,000 422,000,000 420,000,000 353,000,000 296,000,000 297,000,000 220,000,000 273,000,000 283,000,000 302,000,000 274,000,000 252,000,000 179,000,000 179,000,000 
        total assets
      16,401,000,000 16,613,000,000 16,668,000,000 16,478,000,000 16,520,000,000 16,536,000,000 16,668,000,000 16,800,000,000 16,756,000,000 16,983,000,000 17,550,000,000 17,470,000,000 16,580,000,000 17,340,000,000 17,590,000,000 17,580,000,000 17,116,000,000 17,652,000,000 18,092,000,000 17,830,000,000 16,874,000,000 16,311,000,000 16,356,000,000 16,254,000,000 17,228,000,000 16,406,000,000 16,832,000,000 17,029,000,000 17,132,000,000 17,249,000,000 17,427,000,000 18,048,000,000 17,885,000,000 18,059,000,000 18,402,000,000 18,990,000,000 19,001,000,000 19,243,000,000 20,946,000,000 21,989,000,000 21,779,000,000 12,486,000,000 12,820,000,000 12,883,000,000 13,009,000,000 13,457,000,000 13,440,000,000 15,706,000,000 14,505,000,000 14,498,000,000 15,609,000,000 13,908,000,000 12,510,000,000 12,592,000,000 12,338,000,000 12,475,000,000 12,474,000,000 12,598,000,000 12,835,000,000 13,039,000,000 13,580,000,000 13,429,000,000 14,053,000,000 14,708,000,000 15,175,000,000 15,250,000,000 15,365,000,000 15,842,000,000 15,981,000,000 16,735,000,000 22,216,000,000 23,711,000,000 23,756,000,000 23,806,000,000 23,371,000,000 23,391,000,000 24,242,000,000 26,862,000,000 27,372,000,000 27,618,000,000 27,381,000,000 28,229,000,000 29,157,000,000 29,993,000,000 29,670,000,000 29,954,000,000 29,284,000,000 28,723,000,000 28,137,000,000   
        liabilities and equity
                                                                                                 
        current liabilities:
                                                                                                 
        current maturities of long-term debt
      372,000,000 522,000,000 522,000,000 900,000,000 150,000,000 210,000,000 210,000,000 210,000,000 210,000,000  861,000,000 980,000,000 981,000,000 982,000,000 118,000,000    150,000,000 150,000,000 150,000,000 150,000,000   577,000,000     500,000,000    62,000,000 62,000,000 668,000,000 343,000,000 281,000,000 1,981,000,000             163,000,000 184,000,000 340,000,000 340,000,000 184,000,000 167,000,000 12,000,000 11,000,000    24,000,000 3,000,000 3,000,000 3,000,000 41,000,000 388,000,000 406,000,000  880,000,000 870,000,000 807,000,000  262,000,000 63,000,000 70,000,000 494,000,000 492,000,000 553,000,000 699,000,000 389,000,000   96,000,000 489,000,000 490,000,000 445,000,000    
        accounts payable
      284,000,000 278,000,000 280,000,000 283,000,000 288,000,000 255,000,000 275,000,000 281,000,000 310,000,000 287,000,000 288,000,000 254,000,000 266,000,000 247,000,000 272,000,000 283,000,000 310,000,000 281,000,000 264,000,000 253,000,000 236,000,000 204,000,000 215,000,000 199,000,000 241,000,000 246,000,000 242,000,000 271,000,000 243,000,000 222,000,000 271,000,000 270,000,000 245,000,000 249,000,000 259,000,000 252,000,000 227,000,000 233,000,000 234,000,000 300,000,000 385,000,000 326,000,000 344,000,000 343,000,000 319,000,000 331,000,000 351,000,000 335,000,000 409,000,000 384,000,000 362,000,000 341,000,000 357,000,000 329,000,000 356,000,000 360,000,000 343,000,000 336,000,000 305,000,000 326,000,000 359,000,000 340,000,000 326,000,000 322,000,000 329,000,000 317,000,000 325,000,000 314,000,000 285,000,000  449,000,000 509,000,000 537,000,000  894,000,000 1,010,000,000 920,000,000 1,048,000,000 1,142,000,000 1,222,000,000 1,193,000,000 1,241,000,000   1,150,000,000 1,197,000,000 1,102,000,000 1,114,000,000    
        accrued liabilities
      404,000,000 478,000,000 512,000,000 511,000,000 430,000,000 512,000,000 507,000,000 504,000,000 424,000,000 501,000,000 537,000,000 473,000,000 403,000,000 511,000,000 664,000,000 658,000,000 674,000,000 673,000,000 1,110,000,000 775,000,000 549,000,000 596,000,000 617,000,000 525,000,000 448,000,000 530,000,000 487,000,000 510,000,000 411,000,000 490,000,000 491,000,000 543,000,000 457,000,000 645,000,000 702,000,000 585,000,000 452,000,000 691,000,000 533,000,000 590,000,000 595,000,000 549,000,000 554,000,000 576,000,000 533,000,000 587,000,000 606,000,000 597,000,000 661,000,000 742,000,000 623,000,000 573,000,000 531,000,000 561,000,000 558,000,000 576,000,000 536,000,000 593,000,000 672,000,000 712,000,000 686,000,000 734,000,000 656,000,000 663,000,000 603,000,000 631,000,000 708,000,000 816,000,000 825,000,000  2,211,000,000 939,000,000 874,000,000  1,185,000,000 1,145,000,000 1,220,000,000 1,515,000,000 1,098,000,000 1,327,000,000 1,253,000,000 1,622,000,000   1,313,000,000 1,460,000,000 1,337,000,000 1,323,000,000    
        total current liabilities
      1,060,000,000 1,278,000,000 1,314,000,000 1,694,000,000 868,000,000 977,000,000 992,000,000 995,000,000 944,000,000 788,000,000 1,686,000,000 1,707,000,000 1,650,000,000 1,740,000,000 1,054,000,000 941,000,000 984,000,000 954,000,000 1,524,000,000 1,178,000,000 935,000,000 950,000,000 832,000,000 724,000,000 1,816,000,000 1,006,000,000 1,169,000,000 1,223,000,000 1,201,000,000 1,939,000,000 1,273,000,000 1,022,000,000 911,000,000 1,165,000,000 1,023,000,000 1,524,000,000 1,022,000,000 1,206,000,000 3,327,000,000 1,557,000,000 984,000,000 875,000,000 898,000,000 919,000,000 852,000,000 918,000,000 957,000,000 1,069,000,000 1,072,000,000 1,128,000,000 987,000,000 1,079,000,000 1,072,000,000 1,230,000,000 1,254,000,000 1,120,000,000 1,046,000,000 941,000,000 988,000,000 1,038,000,000 1,045,000,000 1,074,000,000 1,007,000,000 989,000,000 936,000,000 955,000,000 1,077,000,000 1,519,000,000 1,517,000,000  3,544,000,000 2,987,000,000 2,782,000,000  2,433,000,000 2,310,000,000 2,373,000,000 3,129,000,000 2,972,000,000 3,104,000,000 3,146,000,000 3,255,000,000   2,869,000,000 3,149,000,000 2,932,000,000 2,884,000,000    
        long-term debt
      5,052,000,000 5,050,000,000 4,948,000,000 4,268,000,000 5,017,000,000 4,866,000,000 4,864,000,000 4,862,000,000 4,861,000,000 5,069,000,000 4,818,000,000 4,817,000,000 4,072,000,000 4,071,000,000 4,935,000,000 5,053,000,000 5,053,000,000 5,099,000,000 5,100,000,000 5,100,000,000 5,325,000,000 5,325,000,000 5,974,000,000 6,299,000,000 6,299,000,000 6,147,000,000 6,150,000,000 6,153,000,000 6,156,000,000 5,419,000,000 5,921,000,000 5,924,000,000 5,928,000,000 5,930,000,000 5,933,000,000 5,936,000,000 6,263,000,000 6,329,000,000 6,329,000,000 8,013,000,000 7,803,000,000 4,891,000,000 4,891,000,000 4,891,000,000 4,891,000,000 4,891,000,000 4,891,000,000 4,891,000,000 4,891,000,000 4,891,000,000 5,459,000,000 3,842,000,000 3,842,000,000 3,842,000,000 3,842,000,000 4,005,000,000 4,026,000,000 4,181,000,000 4,181,000,000 4,192,000,000 4,710,000,000 4,710,000,000 4,710,000,000 4,734,000,000 5,281,000,000 5,281,000,000 5,150,000,000 5,153,000,000 5,153,000,000  5,440,000,000 5,996,000,000 6,058,000,000  6,428,000,000 5,980,000,000 6,849,000,000 7,069,000,000 7,082,000,000 7,075,000,000 6,938,000,000 7,404,000,000   9,263,000,000 9,277,000,000 10,010,000,000 10,325,000,000  12,120,000,000 11,866,000,000 
        deferred tax liabilities
      15,000,000 18,000,000 14,000,000 37,000,000 32,000,000 26,000,000 78,000,000 87,000,000 84,000,000 81,000,000 113,000,000 105,000,000 101,000,000 96,000,000 89,000,000 83,000,000 66,000,000 46,000,000 28,000,000 42,000,000 26,000,000 24,000,000 27,000,000 18,000,000 10,000,000 6,000,000 25,000,000 17,000,000 34,000,000 43,000,000                                                              
        deferred pension and other post-employment benefits
      484,000,000 485,000,000 613,000,000 609,000,000 602,000,000 596,000,000 462,000,000 460,000,000 460,000,000 461,000,000 349,000,000 348,000,000 346,000,000 344,000,000 335,000,000 347,000,000 432,000,000 440,000,000 711,000,000 747,000,000 893,000,000 911,000,000                                                                      
        other liabilities
      351,000,000 356,000,000 341,000,000 346,000,000 356,000,000 350,000,000 345,000,000 351,000,000 353,000,000 348,000,000 356,000,000 352,000,000 335,000,000 340,000,000 339,000,000 340,000,000 344,000,000 346,000,000 360,000,000 363,000,000 367,000,000 370,000,000 358,000,000 359,000,000 352,000,000 377,000,000 383,000,000 397,000,000 398,000,000 275,000,000 291,000,000 295,000,000 299,000,000 276,000,000 273,000,000 280,000,000 281,000,000 269,000,000 285,000,000 285,000,000 311,000,000 267,000,000 277,000,000 275,000,000 284,000,000 308,000,000 318,000,000 334,000,000 364,000,000 409,000,000 438,000,000 446,000,000 455,000,000 499,000,000 477,000,000 400,000,000 407,000,000 408,000,000 335,000,000 412,000,000 405,000,000 212,000,000 213,000,000 218,000,000 224,000,000 252,000,000 292,000,000 294,000,000 317,000,000  334,000,000 343,000,000 360,000,000  497,000,000 539,000,000 565,000,000 606,000,000 766,000,000 707,000,000 568,000,000 522,000,000   508,000,000 501,000,000 534,000,000 443,000,000  476,000,000 491,000,000 
        total liabilities
      6,962,000,000 7,187,000,000 7,230,000,000 6,954,000,000 6,875,000,000 6,815,000,000 6,741,000,000 6,755,000,000 6,702,000,000 6,747,000,000 7,322,000,000 7,329,000,000 6,504,000,000 6,591,000,000 6,752,000,000 6,764,000,000 6,879,000,000 6,885,000,000 7,723,000,000 7,430,000,000 7,546,000,000 7,580,000,000 7,829,000,000 8,052,000,000 9,146,000,000 8,229,000,000 8,233,000,000 8,305,000,000 8,331,000,000 8,203,000,000 8,370,000,000 8,767,000,000 8,894,000,000 9,160,000,000 9,357,000,000 9,900,000,000 9,786,000,000 10,063,000,000 11,756,000,000 12,559,000,000 11,498,000,000 7,617,000,000 7,942,000,000 7,958,000,000 7,982,000,000 8,153,000,000 7,584,000,000 8,563,000,000 7,620,000,000 7,666,000,000 9,492,000,000 8,002,000,000 8,234,000,000 8,479,000,000 7,985,000,000 8,278,000,000 8,269,000,000 8,331,000,000 8,036,000,000 8,303,000,000 8,876,000,000 8,815,000,000 9,437,000,000 10,597,000,000 11,118,000,000 11,196,000,000 11,000,000,000 11,565,000,000 11,587,000,000  14,611,000,000 16,018,000,000 16,056,000,000  15,902,000,000 15,538,000,000 16,402,000,000 17,777,000,000 18,151,000,000 18,118,000,000 18,152,000,000 18,429,000,000   20,165,000,000 20,699,000,000 20,225,000,000 20,313,000,000    
        commitments and contingencies
                                                                                                 
        equity:
                                                                                                 
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 721,043 thousand shares at march 31, 2026 and 720,531 thousand shares at december 31, 2025
      901,000,000                                                                                           
        other capital
      7,391,000,000 7,390,000,000 7,385,000,000 7,401,000,000 7,483,000,000 7,500,000,000 7,517,000,000 7,530,000,000 7,566,000,000 7,608,000,000 7,609,000,000 7,624,000,000 7,662,000,000 7,691,000,000 7,824,000,000 7,954,000,000 8,076,000,000 8,181,000,000 8,242,000,000 8,258,000,000 8,222,000,000 8,208,000,000 8,178,000,000 8,166,000,000 8,159,000,000 8,152,000,000 8,140,000,000 8,130,000,000 8,121,000,000 8,172,000,000 8,234,000,000 8,496,000,000 8,466,000,000 8,439,000,000 8,391,000,000 8,374,000,000 8,340,000,000 8,282,000,000 8,264,000,000 8,527,000,000 9,305,000,000 4,080,000,000 4,089,000,000 4,163,000,000 4,299,000,000 4,519,000,000 4,548,000,000 6,513,000,000 6,464,000,000 6,444,000,000 6,420,000,000 6,290,000,000 4,827,000,000 4,731,000,000 4,692,000,000 4,620,000,000 4,611,000,000 4,595,000,000 4,587,000,000 4,607,000,000 4,597,000,000 4,552,000,000 4,547,000,000 1,796,000,000 1,789,000,000 1,786,000,000 1,781,000,000 1,776,000,000 1,771,000,000  1,764,000,000 1,753,000,000 1,636,000,000  1,554,000,000 1,981,000,000 1,973,000,000 3,812,000,000 4,108,000,000 4,428,000,000 4,381,000,000 4,227,000,000   4,144,000,000 4,075,000,000 4,021,000,000 4,009,000,000  2,913,000,000 2,879,000,000 
        retained earnings
      1,431,000,000 1,428,000,000 1,506,000,000 1,576,000,000 1,643,000,000 1,715,000,000 1,780,000,000 1,897,000,000 1,870,000,000 2,009,000,000 1,929,000,000 1,828,000,000 1,738,000,000 2,389,000,000 2,510,000,000 2,333,000,000 1,679,000,000 2,131,000,000 1,842,000,000 1,861,000,000 962,000,000 411,000,000 246,000,000   -3,000,000 264,000,000 418,000,000 543,000,000 1,093,000,000 1,439,000,000 1,441,000,000 1,365,000,000 1,078,000,000 1,050,000,000 1,154,000,000 1,364,000,000 1,421,000,000 1,101,000,000 1,106,000,000 1,177,000,000 1,349,000,000 1,449,000,000 1,428,000,000 1,445,000,000 1,508,000,000 1,494,000,000 495,000,000 344,000,000 294,000,000 379,000,000 350,000,000 264,000,000 219,000,000 169,000,000 132,000,000 128,000,000 176,000,000 192,000,000 116,000,000 187,000,000 181,000,000 36,000,000 2,631,000,000 2,628,000,000 2,658,000,000 2,844,000,000 2,855,000,000 3,013,000,000  4,670,000,000 4,516,000,000 4,738,000,000  5,239,000,000 5,269,000,000 5,367,000,000 4,755,000,000 4,390,000,000 4,328,000,000 4,137,000,000 4,840,000,000   4,715,000,000 4,573,000,000 4,470,000,000 3,972,000,000  3,659,000,000 3,666,000,000 
        accumulated other comprehensive loss
      -284,000,000 -293,000,000 -355,000,000 -356,000,000 -389,000,000 -402,000,000 -279,000,000 -292,000,000 -294,000,000 -293,000,000 -223,000,000 -225,000,000 -240,000,000 -247,000,000 -418,000,000 -398,000,000 -450,000,000 -479,000,000 -651,000,000 -656,000,000 -792,000,000 -822,000,000 -830,000,000 -860,000,000 -901,000,000 -904,000,000 -736,000,000 -755,000,000 -794,000,000  -1,552,000,000 -1,603,000,000 -1,786,000,000                                                           
        total equity
      9,439,000,000 9,426,000,000 9,438,000,000 9,524,000,000 9,645,000,000 9,721,000,000 9,927,000,000 10,045,000,000 10,054,000,000 10,236,000,000 10,228,000,000 10,141,000,000 10,076,000,000 10,749,000,000 10,838,000,000 10,816,000,000 10,237,000,000 10,767,000,000 10,369,000,000 10,400,000,000 9,328,000,000 8,731,000,000 8,527,000,000 8,202,000,000 8,082,000,000 8,177,000,000 8,599,000,000 8,724,000,000 8,801,000,000 9,046,000,000 9,057,000,000 9,281,000,000 8,991,000,000 8,899,000,000 9,045,000,000 9,090,000,000 9,215,000,000 9,180,000,000 9,190,000,000 9,430,000,000 10,281,000,000 4,869,000,000 4,878,000,000 4,925,000,000 5,027,000,000 5,304,000,000 5,856,000,000 7,143,000,000 6,885,000,000 6,832,000,000 6,117,000,000 5,906,000,000 4,276,000,000 4,113,000,000 4,353,000,000 4,197,000,000 4,205,000,000 4,267,000,000 4,799,000,000 4,736,000,000 4,704,000,000 4,614,000,000 4,616,000,000 4,111,000,000 4,057,000,000 4,054,000,000 4,365,000,000 4,277,000,000 4,394,000,000                       
        total liabilities and equity
      16,401,000,000 16,613,000,000 16,668,000,000 16,478,000,000 16,520,000,000 16,536,000,000 16,668,000,000 16,800,000,000 16,756,000,000 16,983,000,000 17,550,000,000 17,470,000,000 16,580,000,000 17,340,000,000 17,590,000,000 17,580,000,000 17,116,000,000 17,652,000,000 18,092,000,000 17,830,000,000 16,874,000,000 16,311,000,000 16,356,000,000 16,254,000,000 17,228,000,000 16,406,000,000 16,832,000,000 17,029,000,000 17,132,000,000 17,249,000,000 17,427,000,000 18,048,000,000 17,885,000,000 18,059,000,000 18,402,000,000 18,990,000,000 19,001,000,000 19,243,000,000 20,946,000,000 21,989,000,000 21,779,000,000 12,486,000,000 12,820,000,000 12,883,000,000 13,009,000,000 13,457,000,000 13,440,000,000 15,706,000,000 14,505,000,000 14,498,000,000 15,609,000,000 13,908,000,000 12,510,000,000 12,592,000,000 12,338,000,000 12,475,000,000 12,474,000,000 12,598,000,000 12,835,000,000 13,039,000,000 13,580,000,000 13,429,000,000 14,053,000,000 14,708,000,000 15,175,000,000 15,250,000,000 15,365,000,000 15,842,000,000 15,981,000,000                       
        property and equipment
       2,420,000,000    2,329,000,000    2,269,000,000    2,171,000,000    2,057,000,000    2,013,000,000    1,969,000,000                                            3,858,000,000    6,817,000,000    10,009,000,000 9,926,000,000 10,158,000,000 10,285,000,000 10,510,000,000 11,093,000,000 11,175,000,000 11,447,000,000 11,843,000,000 11,838,000,000 11,883,000,000 12,141,000,000 12,235,000,000 12,274,000,000 
        weyerhaeuser shareholders’ interest
                                                                                                 
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 720,531 thousand shares at december 31, 2025 and 725,845 thousand shares at december 31, 2024
       901,000,000                                                                                          
        property and equipment, less accumulated depreciation of 4,108 and 3,980
        2,332,000,000                                                                                         
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 720,861 thousand shares at september 30, 2025 and 725,845 thousand shares at december 31, 2024
        902,000,000                                                                                         
        property and equipment, less accumulated depreciation of 4,137 and 3,980
         2,321,000,000                                                                                        
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 721,835 thousand shares at june 30, 2025 and 725,845 thousand shares at december 31, 2024
         903,000,000                                                                                        
        property and equipment, less accumulated depreciation of 4,044 and 3,980
          2,333,000,000                                                                                       
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 725,671 thousand shares at march 31, 2025 and 725,845 thousand shares at december 31, 2024
          908,000,000                                                                                       
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 725,845 thousand shares at december 31, 2024 and 729,753 thousand shares at december 31, 2023
           908,000,000                                                                                      
        property and equipment, less accumulated depreciation of 3,935 and 3,901
            2,247,000,000  2,283,000,000                                                                                   
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 726,758 thousand shares at september 30, 2024 and 729,753 thousand shares at december 31, 2023
            909,000,000                                                                                     
        property and equipment, less accumulated depreciation of 3,970 and 3,901
             2,240,000,000                                                                                    
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 727,519 thousand shares at june 30, 2024 and 729,753 thousand shares at december 31, 2023
             910,000,000                                                                                    
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 729,141 thousand shares at march 31, 2024 and 729,753 thousand shares at december 31, 2023
              912,000,000                                                                                   
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 729,753 thousand shares at december 31, 2023 and 732,794 thousand shares at december 31, 2022
               912,000,000                                                                                  
        short-term investments
                668,000,000 665,000,000                                                    3,000,000 1,000,000 49,000,000 47,000,000 60,000,000 92,000,000 138,000,000 701,000,000                     
        property and equipment, less accumulated depreciation of 3,854 and 3,710
                2,106,000,000                                                                                 
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 730,128 thousand shares at september 30, 2023 and 732,794 thousand shares at december 31, 2022
                913,000,000                                                                                 
        property and equipment, less accumulated depreciation of 3,820 and 3,710
                 2,133,000,000                                                                                
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 730,850 thousand shares at june 30, 2023 and 732,794 thousand shares at december 31, 2022
                 914,000,000                                                                                
        property and equipment, less accumulated depreciation of 3,759 and 3,710
                  2,157,000,000                                                                               
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 732,507 thousand shares at march 31, 2023 and 732,794 thousand shares at december 31, 2022
                  916,000,000                                                                               
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 732,794 thousand shares at december 31, 2022 and 747,301 thousand shares at december 31, 2021
                   916,000,000                                                                              
        property and equipment, less accumulated depreciation of 3,680 and 3,592
                    1,997,000,000                                                                             
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 737,547 thousand shares at september 30, 2022 and 747,301 thousand shares at december 31, 2021
                    922,000,000                                                                             
        property and equipment, less accumulated depreciation of 3,673 and 3,592
                     2,000,000,000                                                                            
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 741,738 thousand shares at june 30, 2022 and 747,301 thousand shares at december 31, 2021
                     927,000,000                                                                            
        property and equipment, less accumulated depreciation of 3,654 and 3,592
                      2,026,000,000                                                                           
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 745,442 thousand shares at march 31, 2022 and 747,301 thousand shares at december 31, 2021
                      932,000,000                                                                           
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 747,301 thousand shares at december 31, 2021 and 747,385 thousand shares at december 31, 2020
                       934,000,000                                                                          
        property and equipment, less accumulated depreciation of 3,559 and 3,432
                        1,924,000,000                                                                         
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 749,037 thousand shares at september 30, 2021 and 747,385 thousand shares at december 31, 2020
                        936,000,000                                                                         
        property and equipment, less accumulated depreciation of 3,550 and 3,432
                         1,965,000,000                                                                        
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 749,782 thousand shares at june 30, 2021 and 747,385 thousand shares at december 31, 2020
                         937,000,000                                                                        
        property and equipment, less accumulated depreciation of 3,487 and 3,432
                          1,971,000,000                                                                       
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 748,751 thousand shares at march 31, 2021 and 747,385 thousand shares at december 31, 2020
                          936,000,000                                                                       
        current restricted financial investments held by variable interest entities
                               362,000,000 362,000,000 362,000,000 362,000,000 253,000,000 253,000,000 253,000,000 253,000,000                                                           
        borrowings on line of credit
                              550,000,000 230,000,000 440,000,000 140,000,000 245,000,000 425,000,000                                                              
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 747,385 thousand shares at december 31, 2020 and 745,300 thousand shares at december 31, 2019
                           934,000,000                                                                      
        property and equipment, less accumulated depreciation of 3,423 and 3,477
                            1,945,000,000                                                                     
        deferred pension and other postretirement benefits
                            638,000,000 652,000,000 669,000,000 693,000,000 506,000,000 515,000,000 542,000,000 527,000,000 885,000,000 1,224,000,000 1,454,000,000 1,487,000,000 1,201,000,000 1,230,000,000 1,287,000,000 1,322,000,000 875,000,000 926,000,000 983,000,000 987,000,000 1,106,000,000 1,166,000,000 1,249,000,000 1,319,000,000 569,000,000 422,000,000 471,000,000 516,000,000 1,727,000,000 1,785,000,000 1,856,000,000 1,930,000,000 1,378,000,000 1,429,000,000 1,470,000,000 1,467,000,000 797,000,000 835,000,000 908,000,000                               
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 746,398 thousand shares at september 30, 2020 and 745,300 thousand shares at december 31, 2019
                            933,000,000                                                                     
        property and equipment, less accumulated depreciation of 3,493 and 3,477
                             1,958,000,000                                                                    
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 746,251 thousand shares at june 30, 2020 and 745,300 thousand shares at december 31, 2019
                             933,000,000                                                                    
        accumulated deficit
                             -37,000,000 -109,000,000                                                                   
        property and equipment, less accumulated depreciation of 3,460 and 3,477
                              1,911,000,000                                                                   
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 746,206 thousand shares at march 31, 2020 and 745,300 thousand shares at december 31, 2019
                              933,000,000                                                                   
        restricted financial investments held by variable interest entities
                                   362,000,000 362,000,000 362,000,000 362,000,000 615,000,000 615,000,000 615,000,000 615,000,000 615,000,000 615,000,000 615,000,000 615,000,000 615,000,000 615,000,000 615,000,000 615,000,000 615,000,000 615,000,000 615,000,000 615,000,000   615,000,000                                        
        current debt
                                 302,000,000 302,000,000 302,000,000 511,000,000 209,000,000 209,000,000 209,000,000                                                          
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 745,300 thousand shares at december 31, 2019 and 746,391 thousand shares at december 31, 2018
                               932,000,000                                                                  
        receivables, less discounts and allowances of 1 and 1
                                368,000,000 408,000,000 398,000,000 337,000,000 444,000,000 491,000,000 481,000,000 396,000,000 485,000,000 442,000,000  390,000,000                                                      
        property and equipment, less accumulated depreciation of 3,471 and 3,376
                                1,860,000,000                                                                 
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 745,071 thousand shares at september 30, 2019 and 746,391 thousand shares at december 31, 2018
                                931,000,000                                                                 
        property and equipment, less accumulated depreciation of 3,437 and 3,376
                                 1,901,000,000                                                                
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 744,905 thousand shares at june 30, 2019 and 746,391 thousand shares at december 31, 2018
                                 931,000,000                                                                
        property and equipment, less accumulated depreciation of 3,424 and 3,376
                                  1,917,000,000                                                               
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 744,767 thousand shares at march 31, 2019 and 746,391 thousand shares at december 31, 2018
                                  931,000,000                                                               
        property and equipment, less accumulated depreciation of 3,376 and 3,338
                                   1,857,000,000                                                              
        common shares: 1.25 par value; authorized 1,360 million shares; issued and outstanding: 746,391 thousand shares at december 31, 2018 and 755,223 thousand shares at december 31, 2017
                                   933,000,000                                                              
        property and equipment, less accumulated depreciation of 3,411 and 3,338
                                    1,672,000,000                                                             
        goodwill
                                    40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 42,000,000 42,000,000 42,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 40,000,000 43,000,000 919,000,000 931,000,000 948,000,000 2,207,000,000 2,200,000,000 2,181,000,000 2,158,000,000 2,203,000,000 2,254,000,000 2,243,000,000 2,235,000,000 2,982,000,000 2,988,000,000 2,977,000,000 2,997,000,000 3,244,000,000 3,241,000,000 3,218,000,000 3,232,000,000 3,221,000,000 3,224,000,000 
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 749,198,651 shares at september 30, 2018 and 755,222,727 shares at december 31, 2017
                                    936,000,000                                                             
        property and equipment, less accumulated depreciation of 3,370 and 3,338
                                     1,597,000,000                                                            
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 757,646,433 and 755,222,727 shares
                                     947,000,000                                                            
        property and equipment, less accumulated depreciation of 3,354 and 3,338
                                      1,573,000,000                                                           
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 756,699,978 and 755,222,727 shares
                                      946,000,000                                                           
        property and equipment, less accumulated depreciation of 3,338 and 3,306
                                       1,618,000,000                                                          
        investments in and advances to joint ventures
                                       31,000,000 33,000,000 33,000,000 56,000,000 56,000,000 73,000,000 905,000,000 1,011,000,000                                                   
        deposit received from contribution of timberlands to related party
                                           426,000,000                                                      
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 755,222,727 and 748,528,131 shares,
                                       944,000,000                                                          
        cumulative other comprehensive loss
                                        -1,337,000,000 -1,379,000,000 -1,428,000,000  -1,110,000,000 -1,133,000,000 -1,163,000,000  -1,313,000,000 -1,323,000,000 -1,379,000,000  -857,000,000 -663,000,000 -701,000,000  -1,463,000,000 -1,508,000,000 -1,530,000,000  -1,197,000,000 -1,238,000,000 -1,214,000,000  -655,000,000 -662,000,000 -756,000,000 -791,000,000 -643,000,000 -592,000,000 -635,000,000 -664,000,000 -540,000,000 -646,000,000 -667,000,000                     -82,000,000 -69,000,000 
        property and equipment, less accumulated depreciation of 3,393 and 3,306
                                        1,534,000,000                                                         
        timber and timberlands at cost, less depletion charged to disposals
                                        13,627,000,000 13,669,000,000 14,218,000,000 14,299,000,000 14,424,000,000 14,474,000,000 14,548,000,000 6,480,000,000 6,507,000,000 6,531,000,000 6,552,000,000 6,530,000,000 6,546,000,000 6,571,000,000 6,574,000,000 6,580,000,000 6,603,000,000 3,949,000,000 3,954,000,000 3,961,000,000 3,967,000,000 3,963,000,000 3,970,000,000 3,978,000,000 3,997,000,000 3,987,000,000 4,003,000,000 4,035,000,000 4,019,000,000 4,022,000,000 4,016,000,000 4,010,000,000 4,014,000,000 4,173,000,000 4,201,000,000 4,205,000,000 4,041,000,000 4,021,000,000 3,812,000,000 3,769,000,000 3,736,000,000 3,721,000,000 3,705,000,000 3,682,000,000 3,665,000,000 3,696,000,000 3,702,000,000 3,705,000,000 3,691,000,000 3,709,000,000 3,712,000,000 4,212,000,000      
        long-term debt (nonrecourse to the company) held by variable interest entities
                                        511,000,000 511,000,000 511,000,000  511,000,000 511,000,000 511,000,000  511,000,000 511,000,000 511,000,000  511,000,000 511,000,000 516,000,000  5,000,000 4,000,000                                        
        deposit from contribution of timberlands to related party
                                        416,000,000 419,000,000 422,000,000  429,000,000 437,000,000                                                    
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 753,050,533 and 748,528,131 shares
                                        941,000,000                                                         
        property and equipment, less accumulated depreciation of 3,319 and 3,306
                                         1,534,000,000                                                        
        liabilities held for sale
                                         19,000,000                                                        
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 752,711,155 and 748,528,131 shares
                                         941,000,000                                                        
        receivables, less discounts and allowances of 2 and 1
                                          472,000,000                                                       
        property and equipment, less accumulated depreciation of 3,346 and 3,306
                                          1,544,000,000                                                       
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 751,410,510 and 748,528,131 shares
                                          939,000,000                                                       
        assets of discontinued operations
                                            1,652,000,000 1,908,000,000                                       88,000,000 134,000,000            
        property and equipment, less accumulated depreciation of 3,306 and 3,287
                                           1,562,000,000                                                      
        notes payable
                                           1,000,000 1,000,000 1,000,000 4,000,000        2,000,000 2,000,000 2,000,000 2,000,000                              7,000,000    2,000,000      
        liabilities of discontinued operations
                                            578,000,000 666,000,000                                       18,000,000             
        mandatory convertible preference shares, series a: 1.00 par value; 50.00 liquidation; authorized 40,000,000 shares; issued and outstanding: 0 and 13,799,711 shares
                                                                                                 
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 748,528,131 and 510,483,285 shares
                                           936,000,000                                                      
        receivables, less allowances of 2 and 1
                                            412,000,000 409,000,000                                                    
        property and equipment, less accumulated depreciation of 3,364 and 3,287
                                            1,476,000,000                                                     
        minerals and mineral rights
                                            321,000,000 319,000,000 325,000,000                                                   
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 747,932,527 and 510,483,285 shares
                                            935,000,000                                                     
        property and equipment, less accumulated depreciation of 3,334 and 3,291
                                             1,462,000,000                                                    
        note payable to timberland venture
                                             830,000,000 835,000,000                                                   
        mandatory convertible preference shares, series a: 1.00 par value; 50.00 liquidation; authorized 40,000,000 shares; issued and outstanding: 13,693,046 and 13,799,711 shares
                                             14,000,000                                                    
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 733,010,052 and 510,483,285 shares
                                             916,000,000                                                    
        receivables, less allowances of 4 and 3
                                              578,000,000           589,000,000 628,000,000                    818,000,000                   
        property and equipment, less accumulated depreciation of 6,371 and 6,294
                                              2,763,000,000                                                   
        deferred income taxes
                                              71,000,000 86,000,000 259,000,000 196,000,000 195,000,000 206,000,000 338,000,000 410,000,000 306,000,000 206,000,000 44,000,000 38,000,000 46,000,000  68,000,000 92,000,000 108,000,000 93,000,000 440,000,000 533,000,000 485,000,000 366,000,000 704,000,000 1,642,000,000 1,578,000,000 1,538,000,000 1,663,000,000 1,677,000,000 1,723,000,000  2,683,000,000 2,666,000,000 2,562,000,000  2,863,000,000 2,906,000,000 2,897,000,000 3,691,000,000 3,848,000,000 3,913,000,000 4,001,000,000 4,035,000,000   4,315,000,000 4,533,000,000 4,451,000,000 4,373,000,000  4,139,000,000 4,111,000,000 
        mandatory convertible preference shares, series a: 1.00 par value; 50.00 liquidation; authorized 40,000,000 shares; issued and outstanding: 13,799,711 and 13,799,711 shares
                                              14,000,000                                                   
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 759,044,221 and 510,483,285 shares
                                              948,000,000                                                   
        receivables, less discounts and allowances of 3 and 3
                                               487,000,000                                                  
        prepaid expenses
                                               77,000,000 87,000,000 82,000,000 95,000,000 80,000,000 97,000,000 106,000,000 108,000,000 128,000,000 114,000,000 96,000,000 89,000,000 83,000,000 83,000,000 86,000,000 80,000,000 68,000,000 81,000,000 115,000,000 85,000,000 81,000,000 87,000,000 91,000,000 93,000,000 82,000,000 87,000,000 92,000,000 98,000,000 101,000,000 113,000,000 133,000,000 150,000,000 177,000,000 406,000,000 378,000,000 356,000,000 400,000,000 440,000,000 427,000,000 433,000,000 414,000,000 581,000,000 612,000,000 634,000,000 600,000,000 527,000,000 488,000,000 471,000,000   
        property and equipment, less accumulated depreciation of 6,294 and 6,324
                                               2,586,000,000                                                  
        investments in and advances to equity affiliates
                                               74,000,000 174,000,000 176,000,000 183,000,000 188,000,000 186,000,000 188,000,000 205,000,000 211,000,000 186,000,000 186,000,000 191,000,000 192,000,000 188,000,000 187,000,000 189,000,000 192,000,000 194,000,000 191,000,000 192,000,000 194,000,000 193,000,000 192,000,000 192,000,000 197,000,000 199,000,000 200,000,000 205,000,000 202,000,000 196,000,000 192,000,000 348,000,000 356,000,000 497,000,000 510,000,000 498,000,000 499,000,000 490,000,000 479,000,000 475,000,000 486,000,000 496,000,000 495,000,000 491,000,000 489,000,000 632,000,000 592,000,000 603,000,000 560,000,000 564,000,000 
        mandatory convertible preference shares, series a: 1.00 par value; 50.00 liquidation; authorized 40,000,000 shares; issued and outstanding: 13,799,711 and 13,800,000 shares
                                               14,000,000 14,000,000 14,000,000                                                
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 510,483,285 and 524,474,315 shares
                                               638,000,000                                                  
        receivables, less allowances of 3 and 3
                                                545,000,000 537,000,000 539,000,000      586,000,000                     762,000,000                    
        property and equipment, less accumulated depreciation of 6,361 and 6,324
                                                2,484,000,000                                                 
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 511,032,862 and 524,474,315 shares
                                                639,000,000                                                 
        property and equipment, less accumulated depreciation of 6,378 and 6,324
                                                 2,557,000,000                                                
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 514,121,330 and 524,474,315 shares
                                                 643,000,000                                                
        property and equipment, less accumulated depreciation of 6,304 and 6,324
                                                  2,524,000,000                                               
        mandatory convertible preference shares, series a: 1.00 par value; 50.00 liquidation; authorized 40,000,000 shares; issued and outstanding: 13,800,000 shares
                                                  14,000,000 14,000,000 14,000,000 14,000,000 14,000,000                                           
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 518,735,116 and 524,474,315 shares
                                                  648,000,000                                               
        receivables, less discounts and allowances of 3 and 4
                                                   525,000,000     77,000,000 74,000,000                              42,000,000          
        current assets of discontinued operations
                                                     988,000,000                      23,000,000  1,243,000,000 1,102,000,000                   
        property and equipment, less accumulated depreciation of 6,324 and 6,327
                                                   2,623,000,000                                              
        noncurrent assets of discontinued operations
                                                     1,827,000,000                      11,000,000  4,206,000,000 4,045,000,000                   
        current liabilities of discontinued operations
                                                     137,000,000                        505,000,000 413,000,000                   
        noncurrent liabilities of discontinued operations
                                                     926,000,000                        769,000,000 743,000,000                   
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 524,474,315 and 583,548,428 shares
                                                   656,000,000                                              
        total weyerhaeuser shareholders’ interest
                                                   5,304,000,000 5,856,000,000 7,092,000,000 6,852,000,000 6,795,000,000 6,078,000,000 5,868,000,000 4,244,000,000 4,070,000,000 4,340,000,000 4,186,000,000 4,197,000,000 4,263,000,000 4,795,000,000 4,734,000,000 4,702,000,000 4,612,000,000 4,610,000,000 4,100,000,000 4,046,000,000 4,044,000,000 4,349,000,000 4,249,000,000 4,381,000,000                       
        noncontrolling interests
                                                     2,000,000 33,000,000 37,000,000 39,000,000 38,000,000 32,000,000 43,000,000 13,000,000 11,000,000 8,000,000 4,000,000 4,000,000 2,000,000 2,000,000 2,000,000    10,000,000                          
        noncontrolling interests in discontinued operations
                                                     49,000,000                                            
        receivables, less allowances of 3 and 4
                                                    583,000,000                                             
        property and equipment, less accumulated depreciation of 6,408 and 6,327
                                                    2,534,000,000                                             
        weyerhaeuser shareholders’ interest:
                                                                                                 
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 525,484,841 and 583,548,428 shares
                                                    657,000,000                                             
        receivables, less allowances of 4 and 4
                                                     590,000,000                                            
        property and equipment, less accumulated depreciation of 6,428 and 6,327
                                                     2,599,000,000                                            
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 586,697,717 and 583,548,428 shares
                                                     733,000,000                                            
        receivables, less discounts and allowances of 6 and 6
                                                      560,000,000                                           
        property and equipment, less accumulated depreciation of 6,357 and 6,368
                                                      2,611,000,000                                           
        real estate in process of development and for sale
                                                      927,000,000 851,000,000 851,000,000 769,000,000 724,000,000 658,000,000 602,000,000 581,000,000 606,000,000 555,000,000 549,000,000 535,000,000 515,000,000 517,000,000 599,000,000 602,000,000 611,000,000 598,000,000 828,000,000 631,000,000 695,000,000 751,000,000 860,000,000 993,000,000 1,190,000,000 1,270,000,000 1,587,000,000 1,561,000,000 1,540,000,000 1,449,000,000 1,636,000,000 1,590,000,000 1,341,000,000 1,064,000,000 1,146,000,000 992,000,000 871,000,000 861,000,000 934,000,000 843,000,000 769,000,000 793,000,000 768,000,000 
        land being processed for development
                                                      612,000,000 613,000,000 932,000,000 913,000,000 897,000,000 904,000,000 982,000,000 959,000,000 943,000,000 936,000,000 989,000,000 988,000,000 978,000,000 974,000,000 953,000,000 950,000,000 942,000,000 917,000,000 916,000,000 1,146,000,000 1,156,000,000 1,121,000,000 1,453,000,000 1,600,000,000 1,675,000,000 1,622,000,000 1,528,000,000 1,476,000,000 1,427,000,000 1,365,000,000 1,355,000,000 1,282,000,000 1,298,000,000 1,158,000,000 1,142,000,000 1,341,000,000 1,181,000,000 1,028,000,000 995,000,000 1,006,000,000 959,000,000 944,000,000 985,000,000 
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 584,961,444 and 583,548,428 shares
                                                      731,000,000                                           
        receivables, less discounts and allowances of 6 and 7
                                                       569,000,000                                          
        property and equipment, less accumulated depreciation of 6,368 and 6,388
                                                       2,704,000,000                                          
        mandatory convertible preference shares, series a: 1.00 par value; 50.00 liquidation; authorized 40,000,000 shares; issued and outstanding: 13,800,000 and 0 shares
                                                       14,000,000                                          
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 583,548,428 and 542,392,642 shares
                                                       729,000,000                                          
        forest products:
                                                                                                 
        property and equipment, less accumulated depreciation of 6,311 and 6,350
                                                        2,709,000,000                                         
        cash and cash equivalents designated for the purchase of longview timber llc and the repayment of their acquired debt
                                                        494,000,000                                         
        real estate:
                                                                                                 
        real estate: - sum
                                                        2,193,000,000 2,134,000,000 2,057,000,000  1,983,000,000 1,932,000,000 1,959,000,000  1,976,000,000 1,970,000,000 1,959,000,000  2,009,000,000 2,018,000,000 2,021,000,000  2,353,000,000 2,457,000,000 2,580,000,000                       
        mandatory convertible preference shares, series a: 1.00 par value; authorized 40,000,000 shares; issued and outstanding: 13,800,000 and 0 shares
                                                        14,000,000 14,000,000                                        
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 582,577,811 and 542,392,642 shares
                                                        728,000,000                                         
        property and equipment, less accumulated depreciation of 6,219 and 6,350
                                                         2,706,000,000                                        
        cash and cash equivalents designated for the purchase of longview timber llc
                                                         1,450,000,000                                        
        real estate inventory held by variable interest entities
                                                         41,000,000                                        
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 577,873,544 and 542,392,642 shares
                                                         722,000,000                                        
        property and equipment, less accumulated depreciation of 6,350 and 6,350
                                                          2,785,000,000                                       
        assets held by variable interest entities
                                                          804,000,000 805,000,000 914,000,000                                     
        receivables, less discounts and allowances of 4 and 4
                                                          75,000,000                51,000,000        77,000,000               
        liabilities (nonrecourse to the company) held by variable interest entities
                                                          680,000,000                                       
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 546,572,906 and 542,392,642 shares
                                                          683,000,000                                       
        forest products
                                                                                                 
        receivables, less allowances of 3 and 6
                                                           468,000,000                                      
        property and equipment, less accumulated depreciation of 6,350 and 6,550
                                                           2,859,000,000                                      
        real estate
                                                                                                 
        receivables, less discounts and allowances of 4 and 2
                                                           72,000,000                74,000,000                      
        real estate - sum
                                                           2,003,000,000    1,917,000,000    1,953,000,000    2,002,000,000                          
        liabilities
                                                           681,000,000 680,000,000   776,000,000    772,000,000    768,000,000            765,000,000 762,000,000 765,000,000 763,000,000 764,000,000   820,000,000 815,000,000      
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 542,392,642 and 536,425,400 shares
                                                           678,000,000                                      
        receivables, less allowances of 4 and 6
                                                            504,000,000 494,000,000                                    
        property and equipment, less accumulated depreciation of 6,600 and 6,550
                                                            2,759,000,000                                     
        receivables, less discounts and allowances of 6 and 2
                                                            36,000,000 38,000,000                                    
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 540,671,722 and 536,425,400 shares
                                                            676,000,000                                     
        property and equipment, less accumulated depreciation of 6,693 and 6,550
                                                             2,770,000,000                                    
        restricted assets held by special purpose entities
                                                             916,000,000 914,000,000 916,000,000 914,000,000 915,000,000 914,000,000 915,000,000 914,000,000 915,000,000 914,000,000 915,000,000 914,000,000 916,000,000 914,000,000 916,000,000 914,000,000 916,000,000 914,000,000 916,000,000 915,000,000 916,000,000 915,000,000 917,000,000 914,000,000 916,000,000 914,000,000 916,000,000 914,000,000 916,000,000 914,000,000 909,000,000      
        consolidated assets not owned
                                                             3,000,000  8,000,000 8,000,000 8,000,000 8,000,000 8,000,000  6,000,000 6,000,000 6,000,000 6,000,000 18,000,000 32,000,000 40,000,000 214,000,000 218,000,000 268,000,000 273,000,000 277,000,000 287,000,000 264,000,000 151,000,000 132,000,000 154,000,000 170,000,000    26,000,000 45,000,000      
        liabilities (nonrecourse to weyerhaeuser) held by special purpose entities
                                                             778,000,000 775,000,000  773,000,000 774,000,000 771,000,000  769,000,000 770,000,000 767,000,000  765,000,000 766,000,000 763,000,000  764,000,000 764,000,000 763,000,000  764,000,000 765,000,000 763,000,000               
        consolidated liabilities not owned
                                                               8,000,000 8,000,000 8,000,000 8,000,000 8,000,000      1,000,000 35,000,000  108,000,000 132,000,000 198,000,000  237,000,000 246,000,000 232,000,000 115,000,000 107,000,000 127,000,000 144,000,000    25,000,000 45,000,000      
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 537,526,343 and 536,425,400 shares
                                                             672,000,000                                    
        receivables, less allowances of 6 and 6
                                                              503,000,000                                   
        property and equipment, less accumulated depreciation of 6,663 and 6,550
                                                              2,829,000,000                                   
        receivables, less discounts and allowances of 1 and 2
                                                              30,000,000                                   
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 537,408,938 and 536,425,400 shares
                                                              672,000,000                                   
        receivables, less allowances of 6 and 8
                                                               490,000,000 467,000,000                                 
        property and equipment, less accumulated depreciation of 6,550 and 6,784
                                                               2,901,000,000                                  
        receivables, less discounts and allowances of 2 and 3
                                                               41,000,000 31,000,000 36,000,000 54,000,000                               
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 536,425,400 and 535,975,518 shares
                                                               671,000,000                                  
        property and equipment, less accumulated depreciation of 6,672 and 6,784
                                                                2,943,000,000                                 
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 537,210,159 and 535,975,518 shares
                                                                671,000,000                                 
        receivables, less allowances of 8 and 8
                                                                 533,000,000 505,000,000                               
        property and equipment, less accumulated depreciation of 6,834 and 6,784
                                                                 3,083,000,000                                
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 538,639,584 and 535,975,518 shares
                                                                 673,000,000                                
        property and equipment, less accumulated depreciation of 6,749 and 6,784
                                                                  3,151,000,000                               
        common shares: 1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 538,408,104 and 535,975,518 shares
                                                                  674,000,000                               
        receivables, less allowances of 8 and 12
                                                                   432,000,000                              
        receivable from pension trust
                                                                      96,000,000 146,000,000 285,000,000 285,000,000 285,000,000 200,000,000                      
        property and equipment, less accumulated depreciation of 6,784 and 6,682
                                                                   3,217,000,000                              
        deferred pension and other assets
                                                                   363,000,000 830,000,000 948,000,000 904,000,000 756,000,000 658,000,000 600,000,000 520,000,000 608,000,000 2,259,000,000 2,538,000,000 2,499,000,000 2,505,000,000 1,525,000,000 1,470,000,000 1,378,000,000 1,400,000,000 1,265,000,000 1,303,000,000 1,284,000,000 1,314,000,000 1,309,000,000 1,249,000,000 1,197,000,000 1,223,000,000 1,243,000,000 1,273,000,000 1,287,000,000 1,300,000,000 1,349,000,000 
        receivables, less discounts and allowances of 3 and 2
                                                                   51,000,000         84,000,000 77,000,000 60,000,000                   
        notes payable and commercial paper
                                                                    1,000,000 1,000,000 1,000,000 4,000,000 3,000,000 1,000,000 1,000,000   164,000,000 151,000,000  92,000,000 92,000,000 163,000,000 72,000,000 222,000,000 2,000,000 1,000,000 3,000,000   2,000,000 3,000,000 3,000,000 2,000,000  100,000,000 130,000,000 
        deferred pension, other postretirement benefits and other liabilities
                                                                   1,323,000,000 1,644,000,000 1,854,000,000 1,942,000,000 2,000,000,000 1,649,000,000 1,699,000,000 1,623,000,000  1,235,000,000 1,265,000,000 1,634,000,000  1,780,000,000 1,775,000,000 1,691,000,000 1,796,000,000 1,628,000,000 1,674,000,000 1,651,000,000 1,591,000,000   1,494,000,000 1,510,000,000 1,429,000,000 1,416,000,000  1,493,000,000 1,501,000,000 
        common shares: 1.25 par value; authorized 1,360,000,000 and 400,000,000 shares; issued and outstanding: 535,975,518 and 211,358,955 shares
                                                                   670,000,000                              
        receivables, less allowances of 9 and 12
                                                                    477,000,000                             
        property and equipment, less accumulated depreciation of 6,748 and 6,682
                                                                    3,350,000,000                             
        receivables, less discounts and allowances of 2 and 2
                                                                    34,000,000 42,000,000 34,000,000                           
        common shares: 1.25 par value; authorized 1,360,000,000 and 400,000,000 shares; issued and outstanding: 535,935,395 and 211,358,955 shares
                                                                    670,000,000                             
        noncontrolling interest
                                                                    6,000,000 11,000,000 11,000,000  16,000,000 28,000,000 13,000,000                       
        receivables, less allowances of 10 and 12
                                                                     481,000,000                            
        property and equipment, less accumulated depreciation of 6,782 and 6,682
                                                                     3,423,000,000                            
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 211,608,529 and 211,358,955 shares
                                                                     265,000,000                            
        receivables, less allowances of 12 and 12
                                                                      462,000,000                           
        property and equipment, less accumulated depreciation of 6,743 and 6,682
                                                                      3,539,000,000                           
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 211,557,320 and 211,358,955 shares
                                                                      264,000,000                           
        receivables, less allowances of 12 and 7
                                                                       370,000,000                          
        property and equipment, less accumulated depreciation of 6,682 and 6,252
                                                                       3,611,000,000                          
        receivables, less discounts and allowances of 2 and 4
                                                                       32,000,000 31,000,000 46,000,000      63,000,000                  
        investments in unconsolidated entities
                                                                       17,000,000 16,000,000 16,000,000 21,000,000 30,000,000 41,000,000 46,000,000 43,000,000 58,000,000     74,000,000 66,000,000            
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 211,358,955 and 211,289,320 shares
                                                                       264,000,000                          
        receivables, less allowances of 7 and 7
                                                                        403,000,000                         
        property and equipment, less accumulated depreciation of 6,594 and 6,252
                                                                        3,686,000,000                         
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 211,357,081 and 211,289,320 shares
                                                                        264,000,000                         
        receivables, less allowances of 8 and 7
                                                                         402,000,000                        
        property and equipment, less accumulated depreciation of 6,460 and 6,252
                                                                         3,747,000,000                        
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 211,356,803 and 211,289,320 shares
                                                                         264,000,000                        
        receivables, less allowances of 11 and 7
                                                                          384,000,000                       
        property and equipment, less accumulated depreciation of 6,313 and 6,252
                                                                          3,783,000,000                       
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 211,355,449 and 211,289,320 shares
                                                                          264,000,000                       
        weyerhaeuser
                                                                                                 
        receivables, less allowances of 7 and 3
                                                                           497,000,000                      
        58
                                                                                                 
        weyerhaeuser:
                                                                                                 
        receivables, less allowances of 8 and 3
                                                                            658,000,000                     
        current assets held for sale
                                                                            21,000,000                     
        property and equipment, less accumulated depreciation of 6,444 and 6,317
                                                                            4,021,000,000                     
        noncurrent assets held for sale
                                                                            10,000,000                     
        liabilities and shareholders’ interest
                                                                                                 
        current liabilities held for sale
                                                                            4,000,000                     
        noncurrent liabilities held for sale
                                                                                                 
        shareholders’ interest:
                                                                                                 
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 211,288,512 and 209,546,474 shares
                                                                            264,000,000                     
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 0 and 1,600,110 shares
                                                                                                 
        cumulative other comprehensive income
                                                                            907,000,000 1,160,000,000 956,000,000  305,000,000 216,000,000 113,000,000 88,000,000    290,000,000   200,000,000 163,000,000 124,000,000 -17,000,000    
        total shareholders’ interest
                                                                            7,605,000,000 7,693,000,000 7,700,000,000  7,469,000,000 7,853,000,000 7,840,000,000 9,085,000,000 9,221,000,000 9,500,000,000 9,229,000,000 9,800,000,000   9,505,000,000 9,255,000,000 9,059,000,000 8,410,000,000    
        total liabilities and shareholders’ interest
                                                                            22,216,000,000 23,711,000,000 23,756,000,000  23,371,000,000 23,391,000,000 24,242,000,000 26,862,000,000 27,372,000,000 27,618,000,000 27,381,000,000 28,229,000,000   29,670,000,000 29,954,000,000 29,284,000,000 28,723,000,000    
        property and equipment, less accumulated depreciation of 6,431 and 6,344
                                                                             4,052,000,000                    
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 211,279,420 and 209,546,474 shares
                                                                             264,000,000                    
        property and equipment, less accumulated depreciation of 6,435 and 6,385
                                                                              4,043,000,000                   
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 209,658,353 and 209,546,474 shares
                                                                              262,000,000                   
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 1,584,698 and 1,600,110 shares
                                                                              108,000,000                   
        receivables, less allowances of 10 and 14
                                                                               1,333,000,000                  
        60
                                                                                                 
        receivables, less allowances of 13 and 15
                                                                                1,419,000,000 1,508,000,000                
        property and equipment, less accumulated depreciation of 9,511 and 8,901
                                                                                6,894,000,000                 
        real estate and related assets:
                                                                                                 
        receivables, less discounts and allowances of 5 and 4
                                                                                72,000,000 75,000,000                
        investments in unconsolidated entities, less allowances of 14 and 11
                                                                                77,000,000                 
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 209,505,398 and 236,020,282 shares
                                                                                262,000,000                 
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 1,600,610 and 1,987,770 shares
                                                                                109,000,000                 
        property and equipment, less accumulated depreciation of 9,325 and 8,901
                                                                                 6,775,000,000                
        investments in unconsolidated entities, less allowances of 13 and 11
                                                                                 83,000,000 81,000,000               
        real estate and related assets
                                                                                                 
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 216,043,436 and 236,020,282 shares
                                                                                 270,000,000                
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 1,715,745 and 1,987,770 shares
                                                                                 117,000,000                
        receivables, less allowances of 15 and 15
                                                                                  1,394,000,000               
        property and equipment, less accumulated depreciation of 8,954 and 8,913
                                                                                  6,850,000,000               
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 216,009,788 and 236,020,282 shares
                                                                                  270,000,000               
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 1,716,618 and 1,987,770 shares
                                                                                  117,000,000               
        receivables, less allowances of 17 and 15
                                                                                   1,569,000,000              
        receivables, less discounts and allowances of 4 and 3
                                                                                   144,000,000              
        investments in unconsolidated entities, less allowances of 11 and 4
                                                                                   72,000,000              
        shareholders’ interest
                                                                                                 
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 236,020,282 and 243,138,423 shares
                                                                                   295,000,000              
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 1,987,770 and 2,045,315 shares
                                                                                   135,000,000              
        receivables, less allowances
                                                                                    1,816,000,000 1,942,000,000 1,828,000,000  1,966,000,000 2,008,000,000 1,840,000,000  1,804,000,000 1,860,000,000 1,701,000,000   
        receivables, less discounts and allowances
                                                                                    145,000,000 141,000,000 143,000,000  49,000,000 57,000,000 60,000,000  52,000,000 42,000,000 52,000,000 67,000,000 66,000,000 
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 240,911,074 and 243,138,423 shares, respectively
                                                                                    301,000,000             
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 2,018,330 and 2,045,315 shares, respectively
                                                                                    137,000,000             
        accumulated other comprehensive income
                                                                                    285,000,000 298,000,000 266,000,000           
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding:
                                                                                                 
        246,233,480 and 243,138,423 shares, respectively
                                                                                     308,000,000            
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates:
                                                                                                 
        2,035,231 and 2,045,315 shares, respectively
                                                                                     138,000,000            
        investments in unconsolidated entities, less reserves
                                                                                      60,000,000  60,000,000 58,000,000 55,000,000  48,000,000 48,000,000 41,000,000 56,000,000 56,000,000 
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 245,520,080 and 243,138,423 shares
                                                                                      307,000,000           
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 2,035,315 and 2,045,315
                                                                                      138,000,000           
        receivables, less allowances of 15 and 17
                                                                                       1,727,000,000          
        investments in unconsolidated entities, less reserves of 4 and 3
                                                                                       61,000,000          
        243,138,423 and 240,360,619 shares
                                                                                       304,000,000          
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 2,045,315 and 2,111,255 shares
                                                                                       139,000,000          
        assets of business held for sale
                                                                                          1,119,000,000       
        liabilities of business held for sale
                                                                                          308,000,000       
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 241,687,690 and 240,360,619 shares
                                                                                          302,000,000       
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 2,110,702 and 2,111,255
                                                                                          144,000,000       
        receivables, less allowances of 17 and 16
                                                                                           1,604,000,000      
        receivables, less discounts and allowances of 4 and 6
                                                                                           43,000,000      
        investments in unconsolidated entities, less reserves of 3 and 3
                                                                                           59,000,000      
        240,360,619 and 220,200,564 shares
                                                                                           300,000,000      
        2,111,255 and 2,292,825 shares
                                                                                           144,000,000      
        timber and timberlands at cost, less fee stumpage charged to disposals
                                                                                            4,193,000,000 4,244,000,000 4,279,000,000 4,440,000,000 4,454,000,000 
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 239,640,692 and 220,200,564 shares
                                                                                            300,000,000     
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 2,125,655 and 2,292,825 shares
                                                                                            144,000,000     
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 239,395,184 and 220,200,564 shares
                                                                                             299,000,000    
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 2,155,494 and 2,292,825 shares
                                                                                             147,000,000    
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 222,220,256 and 220,200,564 shares
                                                                                                 
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 2,257,192 and 2,292,825
                                                                                                 
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 219,769,834 and 218,950,302 shares
                                                                                               275,000,000  
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 2,296,596 and 2,302,873 shares
                                                                                               156,000,000  
        common shares: 1.25 par value; authorized 400,000,000 shares; issued and outstanding: 219,041,943 and 218,950,302 shares
                                                                                                274,000,000 
        exchangeable shares: no par value; unlimited shares authorized; issued and held by nonaffiliates: 2,301,371 and 2,302,873 shares
                                                                                                156,000,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-09-30 2025-06-30 2025-03-31 2024-09-30 2024-06-30 2024-03-31 2023-09-30 2023-06-30 2023-03-31 2022-09-30 2022-06-30 2022-03-31 2021-09-30 2021-06-30 2021-03-31 2020-09-30 2020-06-30 2020-03-31 2019-09-30 2019-06-30 2019-03-31 2018-09-30 2018-06-30 2018-03-31 2017-09-30 2017-06-30 2017-03-31 2016-09-30 2016-06-30 2016-03-31 2015-09-30 2015-06-30 2015-03-31 2014-09-30 2014-06-30 2014-03-31 2013-09-30 2013-06-30 2013-03-31 2012-09-30 2012-06-30 2012-03-31 2011-09-30 2011-06-30 2011-03-31 2010-09-30 2010-06-30 2010-03-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-06-29 2008-03-30 2007-12-30 2007-07-01 2006-09-24 2006-06-25 2006-03-26 2005-09-25 2005-06-26 2005-03-27 2004-09-26 2004-06-27 2004-03-28 2003-09-28 2003-06-29 
                                                                            
          cash flows from operations:
                                                                            
          net earnings
        156,000,000 250,000,000 170,000,000 83,000,000 315,000,000 287,000,000 114,000,000 620,000,000 381,000,000 151,000,000 1,869,000,000 1,559,000,000 771,000,000 2,191,000,000 1,709,000,000 681,000,000 505,000,000 222,000,000 150,000,000 -62,000,000 -161,000,000 -289,000,000 841,000,000 586,000,000 269,000,000 311,000,000 181,000,000 157,000,000 476,000,000 249,000,000 81,000,000 436,000,000 245,000,000 101,000,000 1,649,000,000 485,000,000 194,000,000 509,000,000 342,000,000 144,000,000 242,000,000 125,000,000 41,000,000 266,000,000 109,000,000 99,000,000 1,112,000,000 -4,000,000 -18,000,000 -387,000,000   -1,212,000,000 -244,000,000 -148,000,000 -98,000,000 787,000,000 -55,000,000 -266,000,000 -580,000,000 944,000,000 659,000,000 239,000,000 1,084,000,000 490,000,000 121,000,000 185,000,000 103,000,000 
          noncash charges (credits) to earnings:
                                                                            
          depreciation, depletion and amortization
        124,000,000 380,000,000 250,000,000 125,000,000 376,000,000 251,000,000 125,000,000 374,000,000 252,000,000 126,000,000 360,000,000 241,000,000 122,000,000 356,000,000 238,000,000 118,000,000 355,000,000 240,000,000 123,000,000 382,000,000 247,000,000 123,000,000 361,000,000 239,000,000 120,000,000 394,000,000 262,000,000 133,000,000 428,000,000 289,000,000 142,000,000 359,000,000 241,000,000 123,000,000 375,000,000 252,000,000 126,000,000 343,000,000 223,000,000 112,000,000 338,000,000 226,000,000 113,000,000 363,000,000 243,000,000 123,000,000 376,000,000 239,000,000 119,000,000 381,000,000 255,000,000 126,000,000 143,000,000 364,000,000 211,000,000 221,000,000 517,000,000 942,000,000 628,000,000 315,000,000 999,000,000 666,000,000 334,000,000      
          basis of acres sold
        23,000,000                                                                    
          deferred income taxes
        1,000,000 -61,000,000  4,000,000      3,000,000 17,000,000 14,000,000 14,000,000 16,000,000 19,000,000 8,000,000 20,000,000 -2,000,000 -82,000,000 -164,000,000 -166,000,000 -123,000,000 111,000,000 25,000,000 10,000,000 9,000,000 6,000,000 3,000,000 96,000,000 56,000,000 18,000,000 10,000,000 16,000,000 13,000,000 170,000,000 125,000,000 36,000,000 73,000,000 49,000,000 26,000,000 22,000,000 7,000,000 -6,000,000  26,000,000 39,000,000 -916,000,000 90,000,000 34,000,000 -20,000,000 2,000,000 11,000,000 -168,000,000 -135,000,000 -10,000,000 -78,000,000 -106,000,000 -142,000,000 -99,000,000 -16,000,000 -185,000,000 -209,000,000 -14,000,000 135,000,000 85,000,000 8,000,000   
          pension and other post-employment benefits
        18,000,000 71,000,000 47,000,000 23,000,000 46,000,000 31,000,000 16,000,000 50,000,000 32,000,000 15,000,000 65,000,000 44,000,000 25,000,000 46,000,000 30,000,000 19,000,000                                                     
          share-based compensation expense
        13,000,000 32,000,000 23,000,000 11,000,000 32,000,000 22,000,000 10,000,000 26,000,000 17,000,000 8,000,000 25,000,000 17,000,000 8,000,000 23,000,000 15,000,000 7,000,000 22,000,000 15,000,000 7,000,000 23,000,000 16,000,000 9,000,000 31,000,000 18,000,000 9,000,000 29,000,000 19,000,000 10,000,000 53,000,000 40,000,000 24,000,000 22,000,000 16,000,000 8,000,000 29,000,000 20,000,000 9,000,000 34,000,000 22,000,000 12,000,000 28,000,000 18,000,000 10,000,000 19,000,000 17,000,000 14,000,000 16,000,000 12,000,000 6,000,000 18,000,000 11,000,000 6,000,000 1,000,000 33,000,000 26,000,000 32,000,000 19,000,000 17,000,000 21,000,000         
          gain on sale of timberlands
        -58,000,000             -32,000,000                                                       
          other
        1,000,000 3,000,000 4,000,000  -3,000,000 4,000,000 1,000,000 -4,000,000 2,000,000 -3,000,000 -41,000,000 -15,000,000 -8,000,000 -27,000,000 -20,000,000 -13,000,000 12,000,000 -10,000,000 -15,000,000 -18,000,000 -8,000,000 9,000,000 -19,000,000  18,000,000 -45,000,000 -23,000,000 -8,000,000 -64,000,000 -46,000,000 -19,000,000 -12,000,000 -16,000,000 -11,000,000 -33,000,000 -20,000,000 -6,000,000 -38,000,000 -15,000,000 2,000,000 19,000,000 16,000,000 17,000,000 -31,000,000 -22,000,000 -33,000,000 -37,000,000 -37,000,000 -63,000,000 -80,000,000 -56,000,000 -37,000,000 109,000,000 -112,000,000 -58,000,000 -25,000,000 -86,000,000 -68,000,000 -42,000,000 -57,000,000 -111,000,000 -51,000,000 -43,000,000 -137,000,000 -150,000,000 -96,000,000 -131,000,000 -147,000,000 
          change in:
                                                                            
          receivables
        -94,000,000 -37,000,000 -66,000,000 -76,000,000 -21,000,000 -57,000,000 -53,000,000 -77,000,000 -105,000,000 -83,000,000 81,000,000 -40,000,000 -238,000,000 -47,000,000 -252,000,000 -139,000,000 -192,000,000 -112,000,000 -82,000,000                               -164,000,000 -218,000,000 -146,000,000 94,000,000 -206,000,000 -107,000,000 92,000,000 -202,000,000 -212,000,000 -310,000,000 -201,000,000 -402,000,000 -461,000,000 -290,000,000 -306,000,000 -361,000,000 -209,000,000   
          receivables and payables for taxes
        1,000,000 -12,000,000 -16,000,000 -22,000,000 -3,000,000 13,000,000 -3,000,000 51,000,000 27,000,000 14,000,000 15,000,000 27,000,000 110,000,000 93,000,000 236,000,000 120,000,000 103,000,000 61,000,000 79,000,000 -18,000,000 -25,000,000 -31,000,000 -109,000,000 15,000,000 5,000,000                                            
          inventories
        -68,000,000 4,000,000 -13,000,000 -68,000,000 -31,000,000 -53,000,000 -68,000,000 23,000,000 14,000,000 -36,000,000 -30,000,000 -58,000,000 -87,000,000 -55,000,000 -51,000,000 -60,000,000 2,000,000 2,000,000 -72,000,000 -2,000,000 -32,000,000 -60,000,000 -9,000,000 -36,000,000 -66,000,000 4,000,000 -7,000,000 -28,000,000 49,000,000 17,000,000 -43,000,000 -9,000,000 -15,000,000 -57,000,000 -46,000,000 -54,000,000 -88,000,000  -36,000,000 -68,000,000 -34,000,000 -12,000,000 -40,000,000 -40,000,000 -31,000,000 -66,000,000                       
          prepaid expenses and other current assets
        2,000,000 9,000,000 17,000,000 5,000,000 20,000,000 33,000,000 17,000,000 -5,000,000 8,000,000 -9,000,000 -7,000,000 -3,000,000 -1,000,000 -21,000,000 -1,000,000 -2,000,000 5,000,000 5,000,000 -2,000,000 5,000,000                                                 
          accounts payable and accrued liabilities
        -66,000,000 41,000,000 39,000,000 -25,000,000 -1,000,000 -14,000,000 -51,000,000 43,000,000 -30,000,000 -87,000,000 -23,000,000 -15,000,000 -62,000,000 116,000,000 65,000,000 -60,000,000 3,000,000 -61,000,000 -91,000,000 -13,000,000 45,000,000 -82,000,000 -133,000,000 -70,000,000 -173,000,000 184,000,000 55,000,000 -137,000,000 61,000,000 36,000,000 -70,000,000 -47,000,000 -25,000,000 -91,000,000 -76,000,000 -97,000,000 -80,000,000 45,000,000 -32,000,000 -66,000,000 10,000,000 9,000,000 -56,000,000 -106,000,000 -75,000,000 -78,000,000 -75,000,000 -65,000,000 -43,000,000 -344,000,000 -254,000,000 -255,000,000 -1,333,000,000 -108,000,000 -263,000,000 -69,000,000 -264,000,000 -315,000,000 -117,000,000 -255,000,000 73,000,000 172,000,000 -160,000,000 91,000,000 59,000,000 -188,000,000   
          pension and post-employment benefit contributions and payments
        -5,000,000 -13,000,000 -6,000,000 -3,000,000 -12,000,000 -9,000,000 -4,000,000 -16,000,000 -11,000,000 -6,000,000 -19,000,000 -14,000,000 -4,000,000 -56,000,000 -33,000,000 -8,000,000                                                     
          net cash from operations
        52,000,000 676,000,000 466,000,000 70,000,000 790,000,000 556,000,000 124,000,000 1,145,000,000 622,000,000 126,000,000 2,665,000,000 2,103,000,000 957,000,000 2,665,000,000 2,006,000,000 698,000,000 1,085,000,000 477,000,000 86,000,000 674,000,000 382,000,000 -14,000,000 820,000,000 733,000,000 136,000,000 847,000,000 524,000,000 35,000,000 886,000,000 539,000,000 47,000,000 725,000,000 443,000,000 77,000,000 784,000,000 431,000,000 109,000,000 656,000,000 313,000,000 -61,000,000 329,000,000 207,000,000 -60,000,000 144,000,000 7,000,000 -109,000,000 551,000,000 433,000,000 190,000,000       547,000,000 -19,000,000  167,000,000 -301,000,000 864,000,000 439,000,000 -227,000,000 1,277,000,000 627,000,000 -196,000,000 916,000,000 314,000,000 
          capital expenditures
        -89,000,000 -288,000,000 -170,000,000 -71,000,000 -228,000,000 -139,000,000 -57,000,000 -209,000,000 -119,000,000 -50,000,000 -207,000,000 -121,000,000 -50,000,000 -184,000,000 -93,000,000 -31,000,000 -158,000,000 -102,000,000 -47,000,000 -199,000,000 -112,000,000 -41,000,000 -238,000,000 -144,000,000 -61,000,000 -213,000,000 -126,000,000 -52,000,000 -260,000,000 -140,000,000 -57,000,000        -381,000,000 
          free cash flows
        -37,000,000 388,000,000 296,000,000 -1,000,000 562,000,000 417,000,000 67,000,000 936,000,000 503,000,000 76,000,000 2,458,000,000 1,982,000,000 907,000,000 2,481,000,000 1,913,000,000 667,000,000 927,000,000 375,000,000 39,000,000 475,000,000 270,000,000 -55,000,000 582,000,000 589,000,000 75,000,000 634,000,000 398,000,000 -17,000,000 626,000,000 399,000,000 -10,000,000 725,000,000 443,000,000 77,000,000 784,000,000 431,000,000 109,000,000 656,000,000 313,000,000 -61,000,000 329,000,000 207,000,000 -60,000,000 144,000,000 7,000,000 -109,000,000 551,000,000 433,000,000 190,000,000       547,000,000 -19,000,000  -214,000,000 -301,000,000 864,000,000 439,000,000 -227,000,000 1,277,000,000 627,000,000 -196,000,000 916,000,000 314,000,000 
          cash flows from investing activities:
                                                                            
          capital expenditures for property and equipment
        -89,000,000 -288,000,000 -170,000,000 -71,000,000 -228,000,000 -139,000,000 -57,000,000 -209,000,000 -119,000,000 -50,000,000 -207,000,000 -121,000,000 -50,000,000 -184,000,000 -93,000,000 -31,000,000 -158,000,000 -102,000,000 -47,000,000 -199,000,000 -112,000,000 -41,000,000 -238,000,000 -144,000,000 -61,000,000 -213,000,000 -126,000,000 -52,000,000 -260,000,000 -140,000,000 -57,000,000                                      
          capital expenditures for timberlands reforestation
        -23,000,000 -37,000,000 -30,000,000 -22,000,000 -39,000,000 -31,000,000 -22,000,000 -42,000,000 -33,000,000 -21,000,000 -38,000,000 -30,000,000 -20,000,000 -39,000,000 -32,000,000 -22,000,000 -41,000,000 -32,000,000 -21,000,000 -42,000,000 -31,000,000 -18,000,000 -45,000,000 -34,000,000 -20,000,000 -46,000,000 -36,000,000 -23,000,000 -43,000,000 -34,000,000 -16,000,000                                      
          proceeds from sale of timberlands
        192,000,000             261,000,000                                                       
          net cash from investing activities
        81,000,000 -729,000,000 -208,000,000 -97,000,000 -381,000,000 -220,000,000 -77,000,000 -982,000,000 -818,000,000 -69,000,000 -530,000,000 -433,000,000 -87,000,000 -108,000,000 -273,000,000 -53,000,000 311,000,000 376,000,000 441,000,000 32,000,000 129,000,000 212,000,000 -264,000,000 -149,000,000 -76,000,000                                  -617,000,000 -400,000,000 670,000,000 775,000,000 -122,000,000 112,000,000 -94,000,000 -45,000,000 -381,000,000 -220,000,000 
          cash flows from financing activities:
                                                                            
          cash dividends on common shares
        -151,000,000 -454,000,000 -304,000,000 -152,000,000 -539,000,000 -394,000,000 -248,000,000 -1,076,000,000 -938,000,000 -799,000,000 -1,485,000,000 -1,352,000,000 -1,218,000,000 -382,000,000 -255,000,000 -127,000,000 -254,000,000 -254,000,000 -254,000,000 -760,000,000 -507,000,000 -254,000,000 -741,000,000 -485,000,000 -242,000,000 -699,000,000 -466,000,000 -233,000,000 -700,000,000 -469,000,000 -241,000,000 -460,000,000 -301,000,000 -152,000,000 -411,000,000 -257,000,000 -129,000,000 -330,000,000 -202,000,000                              
          net proceeds from issuance of long-term debt
         1,098,000,000 299,000,000 299,000,000    743,000,000 743,000,000  881,000,000 881,000,000 881,000,000    732,000,000 732,000,000 732,000,000 739,000,000 739,000,000 739,000,000                                               
          payments on long-term debt
        -150,000,000 -712,000,000 -210,000,000 -210,000,000    -118,000,000   -1,203,000,000 -1,203,000,000 -1,203,000,000 -225,000,000 -225,000,000  -936,000,000 -588,000,000  -512,000,000 -512,000,000 -512,000,000    -831,000,000                                           
          repurchases of common shares
        -10,000,000 -150,000,000 -125,000,000 -25,000,000 -126,000,000 -99,000,000 -50,000,000 -109,000,000 -85,000,000 -34,000,000 -402,000,000 -259,000,000 -118,000,000 -26,000,000      -60,000,000 -60,000,000 -60,000,000 -273,000,000                                              
          net cash from financing activities
        -315,000,000 -230,000,000 -350,000,000 -97,000,000 -674,000,000 -503,000,000 -308,000,000 -571,000,000 -290,000,000 -841,000,000 -2,214,000,000 -1,938,000,000 -1,664,000,000 -606,000,000 -451,000,000 -124,000,000 -695,000,000 -349,000,000 792,000,000 -887,000,000 -633,000,000 -273,000,000 -1,032,000,000 -507,000,000 -286,000,000                                  -505,000,000 -259,000,000 -1,842,000,000 -696,000,000 -441,000,000 -356,000,000 2,000,000 118,000,000 -575,000,000 -158,000,000 
          net change in cash, cash equivalents and restricted cash
        -182,000,000 -283,000,000 -92,000,000 -124,000,000 -265,000,000 -167,000,000 -261,000,000 -408,000,000 -486,000,000 -784,000,000 -79,000,000 -268,000,000 -794,000,000 1,951,000,000   701,000,000                                                    
          cash, cash equivalents and restricted cash at beginning of period
        481,000,000 684,000,000 684,000,000 684,000,000 1,164,000,000 1,164,000,000 1,164,000,000 1,581,000,000 1,581,000,000 1,581,000,000 1,999,000,000 1,999,000,000 1,999,000,000 495,000,000   139,000,000                                                    
          cash, cash equivalents and restricted cash at end of period
        299,000,000 401,000,000 592,000,000 560,000,000 899,000,000 997,000,000 903,000,000 1,173,000,000 1,095,000,000 797,000,000 1,920,000,000 1,731,000,000 1,205,000,000 2,446,000,000   840,000,000                                                    
          cash paid during the period for:
                                                                            
          interest, net of amount capitalized of 3 and 3
        60,000,000        127,000,000     237,000,000           105,000,000     225,000,000                                       
          income taxes, net of refunds
        13,000,000 61,000,000 40,000,000 34,000,000 51,000,000 38,000,000 23,000,000 40,000,000 18,000,000 6,000,000 446,000,000 354,000,000 85,000,000 494,000,000 263,000,000 66,000,000 46,000,000 1,000,000                                                   
          basis of real estate sold
         76,000,000 57,000,000 24,000,000 93,000,000 70,000,000 31,000,000 80,000,000 46,000,000 33,000,000 77,000,000 70,000,000 31,000,000 62,000,000 51,000,000 27,000,000 136,000,000 96,000,000 62,000,000 105,000,000 81,000,000 48,000,000 80,000,000 34,000,000 12,000,000 48,000,000 24,000,000 14,000,000 49,000,000 30,000,000 17,000,000                                      
          gain on lumber mill sale
         -29,000,000                                                                   
          acquisition of timberlands
               -70,000,000 -2,000,000  -286,000,000 -283,000,000 -18,000,000                -10,000,000 -8,000,000 -6,000,000 -34,000,000 -32,000,000 -32,000,000             -30,000,000 -20,000,000 -9,000,000 -26,000,000 -7,000,000 -7,000,000 -18,000,000 -107,000,000 -52,000,000 -59,000,000 -70,000,000 -45,000,000 -31,000,000 -13,000,000 -30,000,000 -22,000,000 -4,000,000 -57,000,000 -33,000,000 -21,000,000 -101,000,000 -82,000,000 
          proceeds from lumber mill sale
         61,000,000                                                                   
          purchase of short-term investments
               -664,000,000 -664,000,000                                                           
          maturities of short-term investments
                                                                            
          cash, cash equivalents and restricted cash at beginning of year
                                                                            
          cash, cash equivalents and restricted cash at end of year
                                                                            
          cash paid during the year for:
                                                                            
          interest, net of amounts capitalized of 11 in 2025, 10 in 2024 and 7 in 2023
                                                                            
          acquisitions of timberlands
         -466,000,000 -5,000,000 -4,000,000 -135,000,000 -53,000,000                                                               
          interest, net of amount capitalized of 8 and 7
         201,000,000                                                                   
          interest, net of amount capitalized of 6 and 5
          132,000,000                     172,000,000  315,000,000                                           
          interest, net of amount capitalized of 3 and 2
           58,000,000        149,000,000      178,000,000          120,000,000                                         
          net gains on sale of timberlands
                                                                            
          loss on debt extinguishment
                  276,000,000 276,000,000 276,000,000                                                        
          interest, net of amounts capitalized of 10 in 2024, 7 in 2023 and 6 in 2022
                                                                            
          interest, net of amount capitalized of 7 and 5
            189,000,000                                                                
          noncash charges to earnings:
                                                                            
          interest, net of amount capitalized of 5 and 3
             126,000,000     211,000,000                192,000,000                                          
          interest, net of amount capitalized of 2 and 1
              57,000,000                        125,000,000                                      
          interest, net of amounts capitalized of 7 in 2023, 6 in 2022 and 4 in 2021
                                                                            
          interest, net of amount capitalized of 5 and 5
               190,000,000                             101,000,000   111,000,000                             
          proceeds from exercise of stock options
                 2,000,000 15,000,000 14,000,000 12,000,000 46,000,000 45,000,000 17,000,000 9,000,000 6,000,000 6,000,000 8,000,000 4,000,000 2,000,000 52,000,000 48,000,000 25,000,000 89,000,000 81,000,000 55,000,000                                         
          interest, net of amount capitalized of 1 and 1
                 57,000,000   78,000,000   75,000,000   108,000,000                                                  
          timber casualty loss
                        80,000,000                                                    
          proceeds from note receivable held by variable interest entities
                        362,000,000 362,000,000 362,000,000 253,000,000 253,000,000 253,000,000                                               
          proceeds from borrowings on line of credit
                        550,000,000 550,000,000 550,000,000 875,000,000 385,000,000 245,000,000    100,000,000                                           
          payments on line of credit
                        -780,000,000 -780,000,000 -230,000,000 -860,000,000 -670,000,000 -425,000,000    -100,000,000                                           
          interest, net of amounts capitalized of 6 in 2022, 4 in 2021 and 4 in 2020
                                                                            
          charges for impairment of assets
                              1,000,000 1,000,000  153,000,000 147,000,000  23,000,000 15,000,000  14,000,000 13,000,000 13,000,000 1,000,000 1,000,000  5,000,000 3,000,000 1,000,000 19,000,000 12,000,000 8,000,000 37,000,000 12,000,000 1,000,000 5,000,000 3,000,000 2,000,000 247,000,000 165,000,000 86,000,000  432,000,000 61,000,000   73,000,000           
          payments on debt held by variable interest entities
                           -302,000,000                                                 
          interest, net of amounts capitalized of 4 in 2021, 4 in 2020 and 5 in 2019
                                                                            
          acquisition of alabama timberlands
                     -149,000,000 -149,000,000                                                      
          proceeds from sale of montana timberlands
                        145,000,000 145,000,000 145,000,000                                                  
          net change in cash and cash equivalents
                      1,282,000,000 521,000,000  504,000,000 1,319,000,000 -181,000,000 -122,000,000 -75,000,000 -476,000,000 77,000,000 -226,000,000 -179,000,000 25,000,000 -221,000,000 -233,000,000 -520,000,000 -597,000,000 -532,000,000 -459,000,000 -422,000,000 785,000,000 73,000,000 -55,000,000 499,000,000 1,464,000,000 -259,000,000 -345,000,000 -92,000,000 -225,000,000 -496,000,000 -586,000,000 -4,000,000 -501,000,000 -23,000,000 291,000,000 -666,000,000 -548,000,000 -638,000,000 -1,808,000,000 -25,000,000 -42,000,000 34,000,000 -28,000,000  -955,000,000 -960,000,000 -308,000,000 518,000,000 -790,000,000 1,033,000,000 535,000,000 -123,000,000 -40,000,000 -64,000,000 
          cash and cash equivalents at beginning of period
                      495,000,000 495,000,000  139,000,000 139,000,000 334,000,000 334,000,000 334,000,000 824,000,000 824,000,000 824,000,000 676,000,000 676,000,000 676,000,000 1,012,000,000 1,012,000,000 1,012,000,000 1,580,000,000 1,580,000,000 1,580,000,000 835,000,000 835,000,000 835,000,000 898,000,000 898,000,000 898,000,000 953,000,000 953,000,000 953,000,000 1,467,000,000 1,467,000,000 1,467,000,000 1,869,000,000 1,869,000,000 1,869,000,000 2,294,000,000 2,294,000,000 2,294,000,000  114,000,000 114,000,000  243,000,000  1,104,000,000 1,104,000,000 1,197,000,000 1,197,000,000 1,197,000,000 202,000,000 202,000,000 202,000,000 122,000,000 122,000,000 
          cash and cash equivalents at end of period
                      1,777,000,000 1,016,000,000  643,000,000 1,458,000,000 153,000,000 212,000,000 259,000,000 348,000,000 901,000,000 598,000,000 497,000,000 701,000,000 455,000,000 779,000,000 492,000,000 415,000,000 1,048,000,000 1,121,000,000 1,158,000,000 1,620,000,000 908,000,000 780,000,000 1,397,000,000 2,362,000,000 639,000,000 608,000,000 861,000,000 728,000,000 971,000,000 881,000,000 1,463,000,000 1,368,000,000 1,846,000,000 2,160,000,000 1,628,000,000 1,746,000,000 1,656,000,000  89,000,000 72,000,000  215,000,000 127,000,000 149,000,000 144,000,000 889,000,000 1,715,000,000 407,000,000 1,235,000,000 737,000,000 79,000,000 82,000,000 58,000,000 
          interest, net of amount capitalized of 2 and 3
                      154,000,000                                                      
          net gains on sale of nonstrategic assets
                                                                            
          receivable and payable for taxes
                                                                            
          pension and post-employment contributions and benefit payments
                                                                            
          cash and cash equivalents at beginning of year
                                                                 1,104,000,000           
          cash and cash equivalents at end of year
                                                                            
          interest, net of amounts capitalized of 4 in 2020, 5 in 2019 and 9 in 2018
                                                                            
          pension and other postretirement benefits
                        55,000,000 37,000,000 19,000,000 519,000,000 496,000,000 478,000,000 82,000,000 55,000,000 34,000,000 72,000,000 47,000,000 32,000,000 5,000,000 5,000,000 4,000,000 32,000,000 21,000,000 10,000,000 -104,000,000 -91,000,000 -47,000,000 79,000,000 52,000,000 24,000,000 -39,000,000 -58,000,000 -28,000,000 60,000,000 43,000,000 24,000,000 -19,000,000 -11,000,000 -1,000,000 10,000,000 -22,000,000 -15,000,000 -63,000,000 -74,000,000 -18,000,000 21,000,000 57,000,000    134,000,000 88,000,000  144,000,000 92,000,000 41,000,000   
          pension and postretirement benefit contributions and payments
                        -21,000,000 -16,000,000 -10,000,000 -36,000,000 -27,000,000 -14,000,000 -355,000,000 -32,000,000 -16,000,000                                            
          interest, net of amount capitalized of 3 and 4
                        278,000,000                                                    
          noncash charges (credits) to income:
                                                                            
          net gains on sale of nonstrategic timberlands
                                                                            
          receivables, less allowances
                           -47,000,000 -87,000,000 -77,000,000 -55,000,000 -101,000,000 -83,000,000                                            
          pension and postretirement contributions / benefit payments
                                       -59,000,000 -39,000,000 -20,000,000 -85,000,000 -63,000,000 -33,000,000 -104,000,000 -69,000,000 -37,000,000                             
          proceeds from disposition of operations
                                                                            
          proceeds from sale of nonstrategic assets
                               2,000,000 2,000,000                                            
          proceeds from sale of nonstrategic timberlands
                                                                            
          proceeds from redemption of ownership in related party
                                                                            
          proceeds from issuance of long-term debt
                                 225,000,000   1,698,000,000 1,398,000,000                                       
          interest, net of amounts capitalized of 5 in 2019, 9 in 2018 and 9 in 2017
                                                                            
          interest, net of amount capitalized of 4 and 8
                           310,000,000                                                 
          income taxes
                           46,000,000 51,000,000 50,000,000 80,000,000 58,000,000 17,000,000 129,000,000 106,000,000 59,000,000 -26,000,000 -25,000,000 -13,000,000 4,000,000 5,000,000 1,000,000 -40,000,000 -45,000,000 -50,000,000 -4,000,000 -6,000,000 -2,000,000 -14,000,000 -15,000,000 -10,000,000 -77,000,000 15,000,000 2,000,000 -444,000,000 -445,000,000 -576,000,000 47,000,000 63,000,000 53,000,000 1,161,000,000 28,000,000 26,000,000 89,000,000 96,000,000 580,000,000 269,000,000 196,000,000 472,000,000 276,000,000 113,000,000 308,000,000 133,000,000 113,000,000 20,000,000 13,000,000 
          prepaid expenses
                            3,000,000 -5,000,000 -7,000,000 -1,000,000 -5,000,000 -9,000,000 -13,000,000 -9,000,000 -3,000,000 -1,000,000 -1,000,000 -2,000,000 -2,000,000 -11,000,000 6,000,000  3,000,000 -16,000,000 -14,000,000 -13,000,000 -18,000,000 -20,000,000 -8,000,000 -14,000,000 -14,000,000 -10,000,000 -4,000,000 -7,000,000 -12,000,000 15,000,000 11,000,000 1,000,000 9,000,000 39,000,000 9,000,000 39,000,000 -1,000,000 -36,000,000 -24,000,000 -31,000,000 3,000,000 -36,000,000 -41,000,000 -69,000,000 -30,000,000 -16,000,000   
          interest, net of amount capitalized of 2 and 6
                            187,000,000                                                
          interest, net of amount capitalized of 1 and 3
                             127,000,000                                               
          net gains on disposition of discontinued and other operations
                                                                            
          net gains on sale of southern timberlands
                                                                            
          change in, net of acquisition:
                                                                            
          proceeds from disposition of discontinued and other operations
                                                                            
          proceeds from sale of southern timberlands
                                                                            
          proceeds from contribution of timberlands to related party
                                    440,000,000 440,000,000                                       
          cash dividends on preference shares
                                    -22,000,000 -11,000,000  -22,000,000 -11,000,000  -22,000,000 -11,000,000                                 
          repurchase of common shares
                                                                            
          cash and cash equivalents from continuing operations at beginning of year
                                                                            
          cash and cash equivalents from discontinued operations at beginning of year
                                                                            
          cash and cash equivalents from continuing operations at end of year
                                                                            
          cash and cash equivalents from discontinued operations at end of year
                                                                            
          interest, net of amounts capitalized of 9 in 2018, 9 in 2017, and 8 in 2016
                                                                            
          proceeds from sale of assets and operations
                              2,000,000   423,000,000   379,000,000               353,000,000 196,000,000 193,000,000 160,000,000 130,000,000 115,000,000 350,000,000 37,000,000 8,000,000                 
          payments of long-term debt
                              -62,000,000 -62,000,000 -62,000,000                                            
          interest, net of amount capitalized of 8 and 6
                              285,000,000                                              
          foreign exchange transaction losses
                                2,000,000  3,000,000 3,000,000 -11,000,000 -12,000,000 -13,000,000 41,000,000 21,000,000 29,000,000 15,000,000 2,000,000 14,000,000 6,000,000 8,000,000 4,000,000 -8,000,000 2,000,000  11,000,000     -10,000,000 -34,000,000 -17,000,000 4,000,000  8,000,000 11,000,000  -36,000,000         9,000,000   
          equity
                                 -1,000,000   -18,000,000 -9,000,000 -3,000,000                                      
          receivables less allowances
                                 -113,000,000 -78,000,000 -70,000,000 -96,000,000 -90,000,000 -47,000,000 -41,000,000 -26,000,000 -16,000,000 -28,000,000 -48,000,000 -1,000,000 -112,000,000 -120,000,000 -165,000,000 -33,000,000 -23,000,000 -5,000,000 -34,000,000 -69,000,000 -59,000,000 -103,000,000 -115,000,000 -87,000,000                    
          receivable / payable for taxes
                                                                            
          distributions of earnings received from joint ventures
                                 1,000,000                                           
          distributions of investment received from joint ventures
                                 23,000,000 23,000,000                                          
          repurchase of common stock
                                    -2,003,000,000 -1,629,000,000 -798,000,000 -484,000,000 -407,000,000 -253,000,000 -123,000,000         -24,000,000      -2,000,000 -2,000,000 -2,000,000     -22,000,000            
          interest, net of amounts capitalized of 9 in 2017, 8 in 2016 and 7 in 2015
                                                                            
          net gains on disposition of assets and operations
                                 -15,000,000                            -15,000,000               
          receivable/payable for taxes
                                 -116,000,000 -53,000,000 -36,000,000                                         
          pension and postretirement contributions
                                 -59,000,000 -37,000,000 -22,000,000 -83,000,000 -29,000,000 -17,000,000          -109,000,000 -68,000,000 -35,000,000                          
          cash and cash equivalents acquired in plum creek merger
                                    9,000,000 9,000,000 9,000,000                                      
          cash from investing activities
                                 192,000,000 -106,000,000 -68,000,000 591,000,000 374,000,000 24,000,000 -324,000,000 -211,000,000 -119,000,000 485,000,000 -139,000,000 -46,000,000 -1,718,000,000 -71,000,000 -42,000,000 -281,000,000 -115,000,000 -57,000,000 188,000,000 98,000,000 151,000,000 178,000,000 197,000,000 138,000,000 200,000,000 -74,000,000 -102,000,000 235,000,000 -362,000,000 -153,000,000 -112,000,000 1,021,000,000 -647,000,000           
          cash from financing activities
                                 -1,218,000,000 -393,000,000 -188,000,000 -1,710,000,000 -1,433,000,000 -668,000,000 -933,000,000 -691,000,000 -380,000,000 -484,000,000 -219,000,000 -118,000,000 1,561,000,000 1,222,000,000 -156,000,000 -393,000,000 -184,000,000 -108,000,000 -828,000,000 -691,000,000 -46,000,000 -1,230,000,000 -653,000,000 -37,000,000 -590,000,000 -164,000,000 -100,000,000 -857,000,000 403,000,000 396,000,000 -401,000,000 -1,030,000,000 -633,000,000           
          cash and cash equivalents from continuing operations at beginning of period
                                 676,000,000 676,000,000 676,000,000 1,011,000,000 1,011,000,000                                       
          cash and cash equivalents from discontinued operations at beginning of period
                                    1,000,000 1,000,000                                       
          cash and cash equivalents from continuing operations at end of period
                                 497,000,000 701,000,000 455,000,000 769,000,000 485,000,000                                       
          cash and cash equivalents from discontinued operations at end of period
                                    10,000,000 7,000,000                                       
          gains on sales of non-strategic assets
                                  -9,000,000 -7,000,000                                         
          proceeds from sale of non-strategic assets
                                  12,000,000 8,000,000                                         
          payments of debt
                                    -723,000,000 -723,000,000                                       
          distributions received from joint ventures
                                    5,000,000 5,000,000                                       
          equity (earnings) loss from joint ventures
                                                                            
          net gains on disposition of discontinued operations
                                                                            
          receivable for taxes
                                    37,000,000 35,000,000 10,000,000 11,000,000 14,000,000 2,000,000 77,000,000 64,000,000 67,000,000 64,000,000 52,000,000 30,000,000 15,000,000 16,000,000 -2,000,000 7,000,000 1,000,000 1,000,000  551,000,000                     
          real estate and land
                                          -133,000,000 -107,000,000 -72,000,000 -179,000,000 -121,000,000 -59,000,000 -95,000,000 -48,000,000 -55,000,000 -49,000,000 -34,000,000 -2,000,000                       
          deposits on land positions and other assets
                                          15,000,000 8,000,000 12,000,000 -11,000,000 -10,000,000 -1,000,000 11,000,000 22,000,000  -9,000,000 -4,000,000  -13,000,000 -3,000,000                     
          proceeds from disposition of discontinued operations
                                                                            
          net proceeds from issuance of wreco debt
                                                                            
          deposit of wreco debt proceeds into escrow
                                          -887,000,000 -887,000,000                                 
          interest, net of amounts capitalized of 8 in 2016, 7 in 2015 and 13 in 2014
                                                                            
          net gains on dispositions of assets and operations
                                    -121,000,000 -51,000,000 -41,000,000    -1,048,000,000         -227,000,000 -185,000,000 -156,000,000 -103,000,000 -93,000,000 -83,000,000 -185,000,000 -23,000,000                  
          interest, net of amount capitalized of 5 and 4
                                    367,000,000                                        
          proceeds from sale of assets
                                     83,000,000 70,000,000 7,000,000 6,000,000 2,000,000 24,000,000 20,000,000 19,000,000 15,000,000 14,000,000 6,000,000 36,000,000 24,000,000 6,000,000           37,000,000 8,000,000              
          noncash investing and financing activities:
                                                                            
          equity issued as consideration for our merger with plum creek
                                     6,383,000,000 6,383,000,000                                      
          distributions from joint ventures
                                      5,000,000                                      
          net proceeds from issuance of debt
                                      1,098,000,000       494,000,000                               
          payments on debt
                                      -720,000,000       -340,000,000 -177,000,000 -156,000,000 -187,000,000 -6,000,000 -2,000,000 -550,000,000 -550,000,000 -2,000,000 -617,000,000 -614,000,000 -17,000,000 -422,000,000 -19,000,000 -1,000,000 -773,000,000 -107,000,000 -4,000,000 -5,000,000 -1,557,000,000 -612,000,000 -525,000,000 -266,000,000 -1,614,000,000 -625,000,000 -405,000,000 -1,150,000,000 -895,000,000 -66,000,000 -829,000,000 -320,000,000 
          (earnings) loss from equity affiliates
                                                                            
          property and equipment
                                       -276,000,000 -170,000,000 -71,000,000 -239,000,000 -134,000,000 -51,000,000 -151,000,000 -82,000,000 -35,000,000 -197,000,000 -122,000,000 -54,000,000 -136,000,000 -74,000,000 -35,000,000 -115,000,000 -78,000,000 -46,000,000 -132,000,000 -89,000,000 -56,000,000 -95,000,000 -215,000,000 -101,000,000 -234,000,000 -265,000,000 -561,000,000  -189,000,000 -549,000,000 -320,000,000 -119,000,000 -264,000,000 -167,000,000 -83,000,000 -458,000,000 -309,000,000 
          timberlands reforestation
                                       -33,000,000 -27,000,000 -18,000,000 -32,000,000 -25,000,000 -14,000,000 -28,000,000 -21,000,000 -13,000,000 -22,000,000 -17,000,000 -10,000,000 -23,000,000 -19,000,000 -12,000,000 -26,000,000 -20,000,000 -13,000,000 -29,000,000 -22,000,000 -15,000,000 -17,000,000 -27,000,000 -16,000,000 -12,000,000 -24,000,000 -27,000,000 -21,000,000 -12,000,000 -24,000,000 -18,000,000 -12,000,000 -23,000,000 -18,000,000 -11,000,000 -25,000,000 -19,000,000 
          acquisition of longview timber llc, net of cash acquired
                                             -1,581,000,000                               
          net proceeds from real estate divestiture, net of cash divested
                                          707,000,000                                  
          net proceeds of investments held by special purpose entities
                                              22,000,000                              
          net proceeds from issuance of common shares
                                             897,000,000 781,000,000                              
          net proceeds from issuance of preference shares
                                             669,000,000 669,000,000                              
          net proceeds from issuance of weyerhaeuser real estate company
                                          887,000,000 887,000,000                                 
          change in book overdrafts
                                          -17,000,000 -6,000,000 -6,000,000 8,000,000 7,000,000 3,000,000 -32,000,000 -20,000,000 -29,000,000 -26,000,000 2,000,000 3,000,000 -27,000,000 -12,000,000 -4,000,000 -46,000,000 -34,000,000 -42,000,000                 
          exercises of stock options
                                       29,000,000 25,000,000 21,000,000 84,000,000 54,000,000 15,000,000 141,000,000 132,000,000 81,000,000 73,000,000 7,000,000 5,000,000 37,000,000 37,000,000 34,000,000 3,000,000 3,000,000 1,000,000    3,000,000 1,000,000 2,000,000 316,000,000            
          interest, net of amounts capitalized of 7 in 2015, 13 in 2014 and 21 in 2013
                                                                            
          noncash investing and financing activity:
                                                                            
          acquisition of longview timber llc, debt assumed
                                                                            
          common shares tendered in wreco divestiture
                                          1,954,000,000                                  
          net gain on dispositions of assets
                                       -30,000,000                                     
          interest, net of amount capitalized of 4 and 12
                                       290,000,000                                     
          net gains on dispositions of assets
                                        -21,000,000 -16,000,000  -46,000,000 -25,000,000 -42,000,000 -21,000,000 -7,000,000 -39,000,000 -17,000,000 -7,000,000                          
          interest, net of amount capitalized of 3 and 10
                                        172,000,000                                    
          interest, net of amount capitalized of 1 and 5
                                         114,000,000                                   
          interest, net of amounts capitalized of 13 in 2014, 21 in 2013 and 18 in 2012
                                                                            
          interest, net of amount capitalized of 12 and 15
                                          253,000,000                                  
          interest, net of amount capitalized of 10 and 10
                                           153,000,000                                 
          interest, net of amounts capitalized of 21 in 2013, 18 in 2012 and 30 in 2011
                                                                            
          noncash investing and financing activity: acquisition of longview timber llc, debt assumed
                                             1,070,000,000                               
          includes gain on timberland exchanges.
                                                                            
          net proceeds of investments
                                             22,000,000                               
          interest, net of amount capitalized of 15 and 16
                                             275,000,000                               
          interest, net of amount capitalized of 10 and 11
                                              166,000,000                              
          cash dividends
                                               -93,000,000 -242,000,000 -161,000,000 -81,000,000 -242,000,000 -161,000,000 -81,000,000 -581,000,000 -21,000,000 -11,000,000 -116,000,000 -106,000,000 -53,000,000 -127,000,000 -253,000,000 -127,000,000 -127,000,000 -274,000,000 -396,000,000 -246,000,000 -123,000,000 -342,000,000 -220,000,000 -97,000,000 -276,000,000 -179,000,000 -89,000,000 -266,000,000 -177,000,000 
          redemption of short-term investments
                                                      47,000,000 47,000,000 47,000,000 92,000,000 78,000,000 46,000,000                 
          repayments from pension trust
                                                                            
          notes, commercial paper borrowings and revolving credit facilities
                                                      -3,000,000 -3,000,000 -3,000,000    28,000,000 791,000,000 534,000,000 -432,000,000 461,000,000            
          interest, net of amounts capitalized of 18 in 2012, 30 in 2011 and 29 in 2010
                                                                            
          payments of liabilities held by variable interest entities
                                                -97,000,000                            
          interest, net of amount capitalized of 16 and 24
                                                290,000,000                            
          interest, net of amount capitalized of 11 and 17
                                                 168,000,000                           
          foreign exchange transaction gains
                                                  -7,000,000  -8,000,000 -7,000,000 -4,000,000           -12,000,000           
          interest, net of amount capitalized of 5 and 9
                                                  114,000,000                          
          issuance of debt
                                                                            
          interest, net of amounts capitalized of 30 in 2011, 29 in 2010, and 32 in 2009
                                                                            
          pension contributions
                                                   -32,000,000 -5,000,000 -1,000,000 -191,000,000 -128,000,000 -127,000,000                    
          interest, net of amount capitalized of 24 and 21
                                                   362,000,000                         
          equity in loss of equity affiliates
                                                    3,000,000 2,000,000 -3,000,000 3,000,000 3,000,000                    
          interest, net of amount capitalized of 17 and 11
                                                    247,000,000                        
          decrease in working capital:
                                                                            
          interest, net of amount capitalized of 9 in 2011 and 6 in 2010
                                                     156,000,000                       
          litigation charges
                                                      14,000,000 11,000,000  20,000,000 20,000,000 20,000,000   18,000,000   -21,000,000           
          loss on early extinguishment of debt
                                                      50,000,000 49,000,000        42,000,000    21,000,000        
          gain on uruguay restructuring
                                                                            
          distributions from (investments in and advances to) equity affiliates
                                                      1,000,000 1,000,000 1,000,000                    
          repayments from
                                                      146,000,000 146,000,000 50,000,000                    
          interest, net of amounts capitalized of 29 in 2010, 32 in 2009, and 104 in 2008
                                                                            
          receivables for taxes
                                                      521,000,000                      
          inventories, real estate and land
                                                      -75,000,000 -62,000,000 -101,000,000 247,000,000 211,000,000 37,000,000 70,000,000 84,000,000 -37,000,000 194,000,000 -42,000,000 -527,000,000 -334,000,000 -274,000,000 -339,000,000 -272,000,000 -290,000,000 -339,000,000 -226,000,000 -189,000,000   
          intercompany advances
                                                                            
          intercompany dividends
                                                                            
          interest, net of amount capitalized
                                                      356,000,000 224,000,000 153,000,000 381,000,000 213,000,000 161,000,000 66,000,000 216,000,000 165,000,000 30,000,000 259,000,000 476,000,000 272,000,000 213,000,000 678,000,000 386,000,000 293,000,000 710,000,000 426,000,000 303,000,000 702,000,000 358,000,000 
          income taxes receivables
                                                        568,000,000                    
          deposits on land positions
                                                        3,000,000 13,000,000 3,000,000 -3,000,000 79,000,000 -43,000,000 -27,000,000 -2,000,000 -19,000,000 -98,000,000           
          equity in income of affiliates and unconsolidated entities
                                                            -10,000,000 -10,000,000    -59,000,000 -45,000,000 -24,000,000 -43,000,000 -27,000,000 -10,000,000      
          charges for impairment of other assets
                                                                            
          foreign exchange transaction
                                                                            
          decrease (increase) in working capital:
                                                                            
          investments in and advances to equity affiliates
                                                         -2,000,000 1,000,000 -1,000,000   -17,000,000   13,000,000           
          uruguay restructuring
                                                                            
          loan to pension trust
                                                         -85,000,000 -85,000,000 -85,000,000                 
          repayment of pension loan
                                                                            
          repurchases of common stock
                                                               -10,000,000  -332,000,000           
          cash paid (received) during the year for:
                                                                            
          equity in loss of affiliates and unconsolidated entities
                                                         -13,000,000 -16,000,000 -5,000,000   27,000,000  -30,000,000       -52,000,000 -36,000,000 -9,000,000   
          increase to environmental liability reserve
                                                                            
          cash from operations
                                                         -276,000,000 -310,000,000 -436,000,000  -66,000,000 -285,000,000   303,000,000           
          net loss
                                                          -382,000,000 -266,000,000                 
          increase to environmental liability reserves
                                                             17,000,000 17,000,000              
          reduction in litigation reserves
                                                                            
          charges for impairment of goodwill
                                                             5,000,000 3,000,000              
          gain on disposition of assets and operations
                                                                            
          acquisition of businesses and facilities, net of cash acquired
                                                               -15,000,000 -39,000,000          -8,000,000 -8,000,000 
          distributions from and (investments in) equity affiliates
                                                                            
          proceeds from sale of:
                                                                            
          property, equipment and other assets
                                                                    22,000,000 18,000,000  113,000,000 92,000,000 63,000,000   
          operations and equity investments
                                                                            
          issuances of debt
                                                                 3,000,000   1,000,000 1,000,000     13,000,000 1,000,000 
          excess tax benefits from share-based payment arrangements
                                                               48,000,000 6,000,000 17,000,000 13,000,000         
          reclass of excess tax benefits from share-based payment arrangements to financing
                                                                -48,000,000            
          gain on restructuring uruguay joint ventures
                                                             -101,000,000               
          decrease in working capital, net of acquisitions and divestitures:
                                                                            
          acquisition of a business and facilities – net of cash acquired
                                                                            
          (investments in and advances to) or distributions from equity affiliates
                                                                            
          restructuring uruguay joint ventures
                                                             -23,000,000               
          proceeds from sale of operations
                                                             62,000,000 21,000,000              
          (investments in and advances to) on distributions from equity affiliates
                                                             -93,000,000               
          proceeds from domtar transaction
                                                                1,350,000,000            
          decrease in working capital, net of divestiture:
                                                                            
          equity in
                                                                            
          charge for acquisition of research and development
                                                                            
          effect of capitalizing interest on excess qualifying assets
                                                                            
          operating facilities
                                                                            
          investments
                                                                            
          net litigation reversals
                                                                            
          charge for impairment of long-lived assets
                                                                68,000,000         1,000,000   
          charge for research and development acquisition
                                                                            
          net foreign exchange transaction gains
                                                                            
          decrease in working capital, net of divestiture and acquisitions:
                                                                            
          investments in, advances to and returns of equity affiliates
                                                                20,000,000            
          proceeds from sale of property and equipment
                                                                            
          intercompany loans and advances
                                                                            
          charge for impairment of goodwill
                                                                22,000,000 749,000,000 749,000,000          
          gain on disposition of assets
                                                                -32,000,000   -2,000,000 -3,000,000  -1,000,000 -311,000,000 -39,000,000 -45,000,000   
          gain on sale of operations
                                                                -678,000,000 -43,000,000           
          proceeds from sale of property, equipment and other assets
                                                                49,000,000            
          equity in (income) loss of affiliates and unconsolidated entities
                                                                            
          gain on divestiture of fine paper and related assets
                                                                            
          decrease (increase) in working capital, net of divestiture and acquisition:
                                                                            
          donation of technology
                                                                            
          charge for acquisition
                                                                 9,000,000           
          effect to capitalize interest on excess qualifying assets
                                                                            
          investment in restricted assets held by special purpose entities
                                                                            
          significant nonstrategic timberlands
                                                                       324,000,000     
          intercompany return of capital and cash dividends
                                                                            
          proceeds from common share offering
                                                                       954,000,000 954,000,000    
          proceeds from liabilities
                                                                            
          pension and other postretirement benefits expense
                                                                 89,000,000 65,000,000 31,000,000   50,000,000      
          gain on sale of investments
                                                                            
          loss on disposition of assets
                                                                 10,000,000    1,000,000     -132,000,000 -143,000,000 
          gain on sale of nonstrategic timberlands
                                                                            
          cash from investing activities:
                                                                            
          acquisition of businesses—net of cash acquired
                                                                 -220,000,000           
          proceeds from sales of:
                                                                            
          operations
                                                                 187,000,000           
          cash from financing activities:
                                                                            
          notes and commercial paper borrowings, and revolving credit facilities
                                                                 521,000,000           
          exercise of stock options
                                                                 171,000,000 171,000,000 131,000,000 150,000,000 136,000,000 71,000,000 141,000,000 131,000,000 103,000,000 39,000,000 4,000,000 
          net decrease in cash and cash equivalents
                                                                 -977,000,000           
          noncash charges
                                                                            
          charges for litigation
                                                                  2,000,000  25,000,000 30,000,000 12,000,000 65,000,000 65,000,000    
          charge for impairment of assets
                                                                  18,000,000          
          gain on sale of british columbia coastal group
                                                                            
          gain on previous timberland sales
                                                                            
          foreign exchange losses
                                                                  5,000,000 26,000,000   -13,000,000  16,000,000    
          decrease in working capital, net of acquisitions:
                                                                            
          purchase option deposits
                                                                  -80,000,000          
          payments for property and equipment
                                                                  -381,000,000          
          acquisition of a business, net of cash acquired
                                                                  -213,000,000 -213,000,000         
          net distributions from equity affiliates
                                                                  13,000,000  29,000,000 19,000,000       
          proceeds from sales of property, equipment and other assets
                                                                  12,000,000 2,000,000   6,000,000      
          proceeds from sale of b.c. coastal operations
                                                                            
          notes, commercial paper borrowings and revolving credit facility
                                                                  76,000,000 -17,000,000   -7,000,000      
          impairment of goodwill
                                                                   746,000,000         
          net distributions from (investments in) equity affiliates
                                                                   10,000,000   8,000,000 37,000,000 28,000,000 3,000,000 -20,000,000 -28,000,000 
          net charges related to litigation
                                                                            
          charges for impairment of long-lived assets
                                                                    20,000,000   4,000,000 3,000,000    
          foreign exchange gains
                                                                    -37,000,000        
          cumulative effect of accounting changes
                                                                            
          credit for reversal of hardboard siding reserve
                                                                       -20,000,000     
          gain on sale of investment in equity affiliate
                                                                    -115,000,000        
          gain on sale of b.c. coastal group operations
                                                                    -63,000,000 -64,000,000       
          gain on significant sale of nonstrategic timberlands
                                                                    -57,000,000        
          b.c. coastal group operations
                                                                    1,107,000,000 1,107,000,000       
          investment in equity affiliate
                                                                    115,000,000        
          notes, commercial paper borrowings, and revolving credit facility
                                                                    -27,000,000 19,000,000       
          intercompany return of capital
                                                                            
          proceeds from liabilities (nonrecourse to weyerhaeuser) held by special purpose entities
                                                                            
          gain on previous timberlands sales
                                                                     -57,000,000       
          countervailing duties and anti-dumping penalties
                                                                            
          credit for reversal of hardboard siding reserves
                                                                            
          credit for cemwood settlement
                                                                            
          gain on significant sales of nonstrategic timberlands
                                                                            
          cumulative effect of a change in an accounting principle
                                                                            
          mortgage-related financial instruments
                                                                            
          proceeds from stock issuance
                                                                            
          depreciation, amortization and fee stumpage
                                                                       988,000,000 659,000,000 327,000,000   
          cumulative effect of a change in accounting principle
                                                                            
          revolving credit facilities, notes and commercial paper borrowings
                                                                       -3,000,000 -3,000,000 175,000,000 468,000,000 333,000,000 
          intercompany cash dividends and return of capital
                                                                            
          western washington timberlands
                                                                            
          charges for alder antitrust litigation
                                                                         49,000,000