7Baggers

Allegheny Technologies Incorporated
(NYSE:ATI) 

ATI stock logo

Allegheny Technologies Incorporated manufactures and sells specialty materials and components worldwide. The company operates in two segments, High Performance Materials & Components and Advanced Alloys & Solutions. The company produces high performance materials, including titanium and titanium-bas...

Founded: 1996
Full Time Employees: 8,100
Sector: Industrials
Industry: Metal Fabrication

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: USD2026-03-29 2025-12-28 2025-09-28 2025-06-29 2025-03-30 2024-12-29 2024-09-29 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 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 
                                                                                         
      sales
    1,151,500,000  1,125,500,000 1,140,400,000 1,144,400,000  1,051,200,000 1,095,300,000 1,042,900,000 1,064,000,000 1,025,600,000 1,046,000,000 1,038,100,000 1,010,400,000 1,032,000,000 959,500,000 834,100,000 765,400,000 725,700,000 616,200,000 692,500,000 658,300,000 598,000,000 770,300,000 955,500,000 1,018,600,000 1,018,700,000 1,080,400,000 1,004,800,000 1,037,900,000 1,020,200,000 1,009,500,000 979,000,000 909,900,000 869,100,000 880,200,000 865,900,000 796,100,000 770,500,000 810,500,000 757,500,000 738,900,000 832,700,000 1,022,500,000 1,125,500,000 1,047,500,000 1,069,600,000 1,119,000,000 987,300,000 915,300,000 972,400,000 1,135,500,000 1,179,400,000 1,101,100,000 1,220,500,000 1,357,400,000 1,352,500,000 1,251,400,000 1,352,600,000 1,351,600,000 1,227,400,000 1,037,600,000 1,058,800,000 1,052,000,000 899,400,000 815,700,000 697,600,000 710,000,000 831,600,000 1,112,700,000 1,392,400,000 1,461,200,000 1,343,400,000 1,273,600,000 1,335,000,000 1,471,300,000 1,372,600,000 1,396,900,000 1,288,400,000 1,210,800,000 1,040,500,000 894,400,000 861,700,000 904,200,000 879,600,000 
      yoy
    0.62%  7.07% 4.12% 9.73%  2.50% 4.71% 0.46% 5.30% -0.62% 9.02% 24.46% 32.01% 42.21% 55.71% 20.45% 16.27% 21.35% -20.01% -27.52% -35.37% -41.30% -28.70% -4.91% -1.86% -0.15% 7.02% 2.64% 14.07% 17.39% 14.69% 13.06% 14.29% 12.80% 8.60% 14.31% 7.74% -7.47% -20.73% -32.70% -29.46% -22.15% -8.62% 14.00% 14.44% 10.00% -1.45% -16.29% -16.87% -20.33% -16.35% -12.80% -12.01% -9.77% 0.43% 10.19% 20.61% 27.75% 28.48% 36.47% 27.20% 51.78% 48.17% 8.15% -26.69% -49.90% -51.41% -38.10% -12.63% 4.30% -0.69% -2.13% -8.83% 3.62% 21.51% 31.92% 56.18% 49.52% 33.91% 18.29%     
      qoq
      -1.31% -0.35%   -4.03% 5.02% -1.98% 3.74% -1.95% 0.76% 2.74% -2.09% 7.56% 15.03% 8.98% 5.47% 17.77% -11.02% 5.20% 10.08% -22.37% -19.38% -6.19% -0.01% -5.71% 7.52% -3.19% 1.73% 1.06% 3.12% 7.59% 4.69% -1.26% 1.65% 8.77% 3.32% -4.94% 7.00% 2.52% -11.26% -18.56% -9.15% 7.45% -2.07% -4.41% 13.34% 7.87% -5.87% -14.36% -3.72% 7.11% -9.78% -10.09% 0.36% 8.08% -7.48% 0.07% 10.12% 18.29% -2.00% 0.65% 16.97% 10.26% 16.93% -1.75% -14.62% -25.26% -20.09% -4.71% 8.77% 5.48% -4.60% -9.26% 7.19% -1.74% 8.42% 6.41% 16.37% 16.33% 3.79% -4.70% 2.80%  
      cost of sales
    888,600,000  870,200,000 897,900,000 908,600,000  826,400,000 867,900,000 845,500,000 858,300,000 831,000,000 836,900,000 844,900,000 824,700,000 848,200,000 784,200,000 664,700,000 643,200,000 643,200,000 573,500,000 606,700,000 613,100,000 559,900,000 695,600,000 820,700,000 849,300,000 859,000,000 902,700,000 873,700,000 890,300,000 859,800,000 835,800,000 830,400,000 779,300,000 775,800,000 767,900,000 753,100,000 698,800,000 720,300,000 762,300,000 790,700,000 836,400,000 861,400,000 945,500,000 1,016,000,000 925,600,000 972,600,000 1,029,500,000 917,100,000 904,000,000 919,300,000 1,031,700,000 1,065,100,000 976,600,000 1,057,700,000 1,158,500,000 1,145,500,000 1,082,400,000 1,136,800,000 1,128,600,000 1,022,000,000 910,300,000 969,000,000 900,200,000 778,000,000 657,300,000 603,500,000 634,800,000 750,900,000 890,300,000 1,085,800,000 1,128,900,000 1,052,800,000 979,100,000 968,100,000 1,069,800,000 986,100,000 1,056,800,000 963,500,000 924,900,000 798,600,000 720,100,000 698,800,000 732,500,000 738,300,000 
      gross profit
    262,900,000  255,300,000 242,500,000 235,800,000  224,800,000 227,400,000 197,400,000 205,700,000 194,600,000 209,100,000 193,200,000 185,700,000 183,800,000 175,300,000 169,400,000 122,200,000 82,500,000 42,700,000 85,800,000 45,200,000 38,100,000 74,700,000 134,800,000 169,300,000 159,700,000 177,700,000 131,100,000 147,600,000 160,400,000 173,700,000 148,600,000 130,600,000 93,300,000 112,300,000 112,800,000 97,300,000 50,200,000 48,200,000 -33,200,000                                             
      yoy
    11.49%  13.57% 6.64% 19.45%  15.52% 8.75% 2.17% 10.77% 5.88% 19.28% 14.05% 51.96% 122.79% 310.54% 97.44% 170.35% 116.54% -42.84% -36.35% -73.30% -76.14% -57.96% 2.82% 14.70% -0.44% 2.30% -11.78% 13.02% 71.92% 54.67% 31.74% 34.22% 85.86% 132.99% -439.76%                                                 
      qoq
      5.28% 2.84%   -1.14% 15.20% -4.04% 5.70% -6.93% 8.23% 4.04% 1.03% 4.85% 3.48% 38.63% 48.12% 93.21% -50.23% 89.82% 18.64% -49.00% -44.58% -20.38% 6.01% -10.13% 35.55% -11.18% -7.98% -7.66% 16.89% 13.78% 39.98% -16.92% -0.44% 15.93% 93.82% 4.15% -245.18%                                              
      gross margin %
    22.83% NaN% 22.68% 21.26% 20.60% NaN% 21.39% 20.76% 18.93% 19.33% 18.97% 19.99% 18.61% 18.38% 17.81% 18.27% 20.31% 15.97% 11.37% 6.93% 12.39% 6.87% 6.37% 9.70% 14.11% 16.62% 15.68% 16.45% 13.05% 14.22% 15.72% 17.21% 15.18% 14.35% 10.74% 12.76% 13.03% 12.22% 6.52% 5.95% -4.38% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 
      selling and administrative expenses
    92,100,000  94,600,000 82,800,000 85,000,000  82,400,000 88,900,000 82,000,000 92,300,000 69,800,000 85,400,000 80,600,000 76,800,000 73,200,000 72,300,000 75,200,000 57,800,000 54,900,000 60,200,000 54,000,000 52,800,000 45,400,000 44,400,000 58,400,000 66,300,000 65,200,000 67,700,000 68,000,000 72,900,000 65,500,000 62,700,000 67,100,000 61,900,000 66,200,000 66,700,000 59,500,000 65,300,000 60,500,000 59,300,000 62,600,000 40,800,000 62,500,000 72,400,000 63,100,000 70,400,000 68,700,000 65,700,000 67,700,000 66,300,000 70,600,000 82,100,000 85,700,000 92,000,000 91,700,000 90,700,000 103,400,000 97,400,000 96,700,000 99,300,000 88,700,000 88,800,000 65,900,000 76,000,000 74,200,000 86,800,000 83,700,000 64,400,000 80,800,000 59,000,000 74,300,000 79,200,000 70,200,000 72,400,000 73,500,000 72,700,000 78,100,000 74,200,000 72,800,000 75,400,000 72,900,000 79,200,000 64,400,000 65,400,000 66,800,000 
      restructuring charges
    7,000,000      500,000 -1,900,000 200,000 5,500,000 -500,000 2,700,000     -1,100,000 -2,800,000 -2,300,000 -6,200,000  1,080,500,000 2,300,000 16,700,000 8,000,000             28,600,000 488,600,000 1,000,000 9,000,000                                             
      loss on asset sales and sales of businesses
      -1,300,000  3,900,000  -300,000 -2,200,000  -400,000 100,000 700,000    115,900,000 18,300,000                                                                     
      operating income
    163,800,000  162,400,000 161,000,000 146,900,000  142,200,000 142,600,000 115,200,000 108,300,000 125,200,000 120,300,000 112,600,000 108,700,000 113,200,000 -11,600,000 77,000,000 67,200,000 29,900,000 -11,300,000 31,800,000 -1,088,100,000 -9,600,000 -273,400,000 68,400,000 98,500,000 94,500,000 110,000,000 63,100,000 74,700,000 94,900,000 111,000,000 81,500,000 68,700,000 -87,300,000 45,600,000 53,300,000 3,400,000 -498,900,000 -12,100,000 -104,800,000                                             
      yoy
    11.50%  14.21% 12.90% 27.52%  13.58% 18.54% 2.31% -0.37% 10.60% -1137.07% 46.23% 61.76% 278.60% 2.65% 142.14% -106.18% -411.46% -95.87% -53.51% -1204.67% -110.16% -348.55% 8.40% 31.86% -0.42% -0.90% -22.58% 8.73% -208.71% 143.42% 52.91% 1920.59% -82.50% -476.86% -150.86%                                                 
      qoq
      0.87% 9.60%   -0.28% 23.78% 6.37% -13.50% 4.07% 6.84% 3.59% -3.98% -1075.86% -115.06% 14.58% 124.75% -364.60% -135.53% -102.92% 11234.38% -96.49% -499.71% -30.56% 4.23% -14.09% 74.33% -15.53% -21.29% -14.50% 36.20% 18.63% -178.69% -291.45% -14.45% 1467.65% -100.68% 4023.14% -88.45%                                              
      operating margin %
    14.22% NaN% 14.43% 14.12% 12.84% NaN% 13.53% 13.02% 11.05% 10.18% 12.21% 11.50% 10.85% 10.76% 10.97% -1.21% 9.23% 8.78% 4.12% -1.83% 4.59% -165.29% -1.61% -35.49% 7.16% 9.67% 9.28% 10.18% 6.28% 7.20% 9.30% 11.00% 8.32% 7.55% -10.04% 5.18% 6.16% 0.43% -64.75% -1.49% -13.83% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 
      nonoperating retirement benefit expense
    -4,300,000  -3,900,000 -4,100,000 -3,900,000  -3,700,000 -3,700,000 -3,700,000 -12,650,000 -16,900,000 -16,900,000 -16,800,000   -6,600,000 -5,800,000   -6,800,000 -6,800,000 -28,600,000 -11,100,000 -11,200,000 -11,200,000 -18,400,000 -18,500,000 -18,400,000 -18,300,000 -8,400,000 -8,400,000 -8,800,000 -8,300,000                                                     
      interest expense
    -23,700,000  -26,100,000 -25,400,000 -23,000,000  -28,000,000 -28,400,000 -26,600,000 -27,800,000 -23,800,000 -21,300,000 -19,900,000 -19,600,000 -20,800,000 -23,400,000 -23,600,000 -24,700,000 -25,100,000 -23,700,000 -23,400,000 -25,700,000 -25,100,000 -21,700,000 -21,900,000 -24,100,000 -24,200,000 -25,900,000 -24,800,000 -25,200,000 -24,800,000 -25,500,000 -25,500,000 -31,600,000 -34,200,000 -34,500,000 -33,500,000 -32,800,000 -32,600,000 -30,300,000 -28,300,000 -29,200,000 -27,500,000 -26,800,000 -26,700,000 -25,900,000 -25,200,000 -28,500,000 -29,100,000 -18,700,000 -18,200,000 -13,900,000 -14,400,000 -15,900,000 -17,200,000 -18,600,000 -19,900,000 -22,200,000 -23,400,000 -23,700,000 -23,000,000 -16,300,000 -16,400,000 -15,400,000  -10,000,000 -8,100,000 -1,300,000  -700,000 -1,700,000 -1,300,000  2,200,000 -100,000 -2,600,000 -4,300,000 -5,700,000 -4,300,000 -5,800,000 -7,500,000 -7,700,000 -9,900,000 -10,600,000 -10,400,000 
      other income
    800,000  12,200,000 1,800,000 1,500,000  4,400,000 400,000 400,000   700,000 600,000 2,800,000 -18,500,000 10,700,000 -7,500,000 800,000 14,500,000 1,400,000 1,500,000 -400,000 -400,000 500,000  -13,200,000 67,200,000 18,600,000 -2,900,000 -1,900,000 800,000 3,800,000 17,800,000 300,000 200,000 200,000 3,300,000 600,000  1,000,000 800,000 -700,000 800,000 600,000 900,000 1,200,000 1,000,000 1,300,000 600,000 400,000 400,000 -100,000 1,100,000 -500,000 200,000 100,000 400,000 500,000 -300,000 300,000 100,000 400,000 2,000,000 200,000 400,000 400,000 300,000 -300,000 300,000 -1,250,000 -2,600,000 -1,700,000 -700,000 225,000 700,000 -300,000 500,000 -1,100,000 -1,400,000 -1,200,000 -1,300,000 -1,400,000 -1,600,000 -1,000,000 -800,000 
      income before income taxes
    136,600,000  144,600,000 133,300,000 121,500,000  114,900,000 110,900,000 85,300,000 51,400,000 84,500,000 82,800,000 76,500,000 85,400,000 67,400,000 -30,900,000 40,100,000 -29,300,000 77,200,000 -40,400,000 3,100,000 -1,142,800,000 -46,200,000 -327,300,000 34,400,000 21,200,000 119,000,000 84,300,000 17,100,000 39,200,000 62,500,000 80,500,000 65,500,000 400,000 -121,300,000 11,300,000 23,100,000 -176,300,000 -531,500,000 -41,400,000 -132,300,000                                             
      income tax provision
    16,100,000  31,000,000 29,300,000 21,000,000  28,300,000 25,300,000 16,900,000 -141,100,000 4,900,000 3,700,000 4,300,000 4,200,000 3,000,000 3,400,000 4,900,000 -4,700,000 22,000,000 4,000,000 5,500,000 -26,500,000 800,000 92,600,000 10,800,000 -38,800,000 3,700,000 5,800,000 800,000 -5,800,000 6,900,000 4,900,000 5,000,000    2,000,000 -16,100,000 -4,300,000 -25,900,000 -34,200,000 5,925,000 23,400,000 -7,700,000 8,000,000 3,700,000 500,000 -2,900,000 -10,000,000 -59,200,000 -8,500,000 1,100,000 3,700,000 2,600,000 16,800,000 31,000,000 25,800,000 15,700,000 31,200,000 34,300,000 35,100,000 5,200,000 6,200,000 22,400,000 13,200,000 21,600,000 -1,400,000 11,700,000  51,200,000 83,900,000 81,200,000 77,900,000 73,900,000 100,100,000 119,400,000 106,800,000 92,000,000 84,500,000 63,100,000 57,700,000   3,000,000 2,300,000 
      net income
    120,500,000  113,600,000 104,000,000 100,500,000  86,600,000 85,600,000 68,400,000 192,500,000 79,600,000 79,100,000 72,200,000 81,200,000 64,400,000 -34,300,000 35,200,000 -24,600,000 55,200,000 -44,400,000 -2,400,000 -1,116,300,000 -47,000,000 -419,900,000 23,600,000 60,000,000 115,300,000 78,500,000 16,300,000 45,000,000 55,600,000 75,600,000 60,500,000 5,200,000 -119,400,000 13,400,000 21,100,000 13,700,000 -527,200,000 -15,500,000 -98,100,000 -223,300,000 -141,300,000 -13,900,000 12,600,000 25,300,000 2,900,000 -700,000 -17,900,000 175,600,000 -32,200,000 6,600,000 11,600,000 13,500,000 37,300,000 58,700,000 58,300,000 34,200,000 64,200,000 66,000,000 58,700,000 17,400,000 3,300,000 38,200,000 19,800,000 40,400,000 4,000,000 -11,700,000 5,300,000 110,900,000 144,100,000 168,900,000 142,000,000 148,900,000 193,900,000 206,500,000 197,800,000 167,100,000 161,900,000 140,400,000 102,500,000 118,800,000 88,300,000 91,700,000 61,000,000 
      yoy
    19.90%  31.18% 21.50% 46.93%  8.79% 8.22% -5.26% 137.07% 23.60% -330.61% 105.11% -430.08% 16.67% -22.75% -1566.67% -97.80% -217.45% -89.43% -110.17% -1960.50% -140.76% -634.90% 44.79% 33.33% 107.37% 3.84% -73.06% 765.38% -146.57% 464.18% 186.73% -62.04% -77.35% -186.45% -121.51% -106.14% 273.11% 11.51% -878.57% -982.61% -4972.41% 1885.71% -170.39% -85.59% -109.01% -110.61% -254.31% 1200.74% -186.33% -88.76% -80.10% -60.53% -41.90% -11.06% -0.68% 96.55% 1845.45% 72.77% 196.46% -56.93% -17.50% -426.50% 273.58% -63.57% -97.22% -106.93% -96.27% -25.52% -25.68% -18.21% -28.21% -10.89% 19.77% 47.08% 92.98% 40.66% 83.35% 53.11% 68.03%     
      qoq
      9.23% 3.48%   1.17% 25.15% -64.47% 141.83% 0.63% 9.56% -11.08% 26.09% -287.76% -197.44% -243.09% -144.57% -224.32% 1750.00% -99.79% 2275.11% -88.81% -1879.24% -60.67% -47.96% 46.88% 381.60% -63.78% -19.06% -26.46% 24.96% 1063.46% -104.36% -991.04% -36.49% 54.01% -102.60% 3301.29% -84.20% -56.07% 58.03% 916.55% -210.32% -50.20% 772.41% -514.29% -96.09% -110.19% -645.34% -587.88% -43.10% -14.07% -63.81% -36.46% 0.69% 70.47% -46.73% -2.73% 12.44% 237.36% 427.27% -91.36% 92.93% -50.99% 910.00% -134.19% -320.75% -95.22% -23.04% -14.68% 18.94% -4.63% -23.21% -6.10% 4.40% 18.37% 3.21% 15.31% 36.98% -13.72% 34.54% -3.71% 50.33%  
      net income margin %
    10.46% NaN% 10.09% 9.12% 8.78% NaN% 8.24% 7.82% 6.56% 18.09% 7.76% 7.56% 6.96% 8.04% 6.24% -3.57% 4.22% -3.21% 7.61% -7.21% -0.35% -169.57% -7.86% -54.51% 2.47% 5.89% 11.32% 7.27% 1.62% 4.34% 5.45% 7.49% 6.18% 0.57% -13.74% 1.52% 2.44% 1.72% -68.42% -1.91% -12.95% -30.22% -16.97% -1.36% 1.12% 2.42% 0.27% -0.06% -1.81% 19.18% -3.31% 0.58% 0.98% 1.23% 3.06% 4.32% 4.31% 2.73% 4.75% 4.88% 4.78% 1.68% 0.31% 3.63% 2.20% 4.95% 0.57% -1.65% 0.64% 9.97% 10.35% 11.56% 10.57% 11.69% 14.52% 14.04% 14.41% 11.96% 12.57% 11.60% 9.85% 13.28% 10.25% 10.14% 6.93% 
      less: net income attributable to noncontrolling interests
    2,300,000  3,600,000 3,300,000 3,500,000  3,900,000 3,700,000 2,300,000 3,500,000 3,900,000 3,100,000 2,100,000 4,300,000 3,300,000 3,700,000 4,300,000 5,200,000 6,500,000 4,800,000 5,500,000 4,700,000 3,100,000 2,700,000 2,500,000 3,500,000 4,300,000 3,400,000 1,300,000 3,900,000 5,100,000 2,800,000 2,500,000 3,500,000 1,800,000 3,300,000 3,600,000 3,800,000 3,600,000 3,300,000 3,100,000 3,600,000 3,300,000 2,500,000 2,600,000 3,200,000 3,600,000 3,300,000 2,100,000 2,200,000 1,600,000 2,200,000 1,600,000 3,000,000 2,000,000 2,300,000 2,100,000 2,500,000 1,900,000 2,000,000 2,400,000 2,300,000 2,300,000 1,800,000 1,600,000 2,600,000 2,600,000 1,700,000 -600,000                 
      net income attributable to ati
    118,200,000  110,000,000 100,700,000 97,000,000  82,700,000 81,900,000 66,100,000 189,000,000 75,700,000 76,000,000 70,100,000 76,900,000 61,100,000  30,900,000 -29,800,000 48,700,000  -7,900,000 -1,121,000,000 -50,100,000 -422,600,000 21,100,000 56,500,000 111,000,000 75,100,000 15,000,000 41,100,000 50,500,000 72,800,000 58,000,000   10,100,000 17,500,000    -101,200,000    10,000,000   -4,000,000 -20,000,000 173,400,000 -33,800,000 4,400,000 10,000,000 10,500,000 35,300,000 56,400,000 56,200,000 31,700,000 62,300,000 64,000,000 56,300,000 15,100,000 1,000,000 36,400,000 18,200,000 37,800,000 1,400,000 -13,400,000 5,900,000                 
      basic net income attributable to ati per common share
    860,000  800,000 720,000 680,000  640,000 660,000 520,000 1,480,000 590,000 590,000 550,000 600,000 470,000  240,000 -230,000 380,000  -60,000 -8,860,000 -400,000 -3,340,000 170,000 450,000 880,000 600,000 120,000 330,000 400,000 580,000 460,000   90,000 160,000    -940,000    90,000   -30,000 -190,000 1,620,000 -320,000 40,000 90,000 100,000 330,000 530,000 530,000 290,000 590,000 630,000 580,000   370,000 190,000 390,000 10,000                   
      diluted net income attributable to ati per common share
    850,000  780,000 700,000 670,000  570,000 580,000 460,000 1,280,000 520,000 520,000 480,000 540,000 420,000  230,000 -230,000 350,000  -60,000 -8,860,000 -400,000 -3,340,000 160,000 410,000 780,000 540,000 120,000 300,000 370,000 520,000 420,000   90,000 160,000    -940,000    90,000   -30,000 -190,000 1,620,000 -320,000 40,000 90,000 110,000 320,000 500,000 500,000 290,000 560,000 590,000 540,000   360,000 180,000 380,000 10,000                   
      restructuring (credits) charges
      -400,000                                                                                   
      restructuring credits
       -1,300,000          -1,250,000 -2,600,000 -1,300,000                                                                      
      nonoperating retirement benefit income
                 -6,500,000 -6,500,000   -7,100,000 57,900,000                                                                   
      net loss attributable to ati
                   -38,000,000    -49,200,000              1,700,000 -121,200,000   9,900,000 -530,800,000 -18,800,000  -37,750,000 -144,600,000 -16,400,000  -6,175,000 -700,000                                       
      basic net loss attributable to ati per common share
                   -310,000    -390,000              40,000 -1,120,000   100,000 -4,950,000 -180,000  -352,500 -1,350,000 -150,000  -57,500 -10,000                                       
      diluted net loss attributable to ati per common share
                   -310,000    -390,000              40,000 -1,120,000   100,000 -4,950,000 -180,000  -352,500 -1,350,000 -150,000  -57,500 -10,000                                       
      impairment of goodwill
                           287,000,000           114,400,000                                                   
      debt extinguishment charge
                           -21,500,000                                                              
      other expense
                            -900,000                                                             
      dividends declared per common share
                                         60,000 80,000 80,000 80,000 135,000 180,000 180,000 180,000 135,000 180,000 180,000 180,000 135,000 180,000 180,000 180,000 135,000 180,000 180,000 180,000 135,000 180,000 180,000 180,000 135,000 180,000 180,000 180,000 135,000 180,000 180,000 180,000 135,000 180,000 180,000 180,000 97,500 130,000 130,000 130,000 75,000 100,000 100,000 100,000 45,000 60,000 60,000 60,000 
      income tax benefit
                                     -4,800,000 -1,900,000 -2,100,000                                 -5,000,000             -58,700,000 -1,300,000   
      costs and expenses:
                                                                                         
      income before interest, other income and income taxes
                                             -329,200,000 -91,200,000 4,600,000 46,400,000 51,500,000 28,300,000 23,800,000 2,500,000 -122,500,000 -17,500,000 21,700,000 28,600,000 32,500,000 71,100,000 108,200,000 103,600,000 71,600,000 119,100,000 123,700,000 116,700,000 38,500,000 23,900,000 75,800,000 47,200,000 71,600,000 10,400,000 10,800,000 -100,000                74,500,000 
      income from continuing operations before income taxes
                                             -359,100,000 -117,900,000  20,600,000 26,800,000 4,100,000                                       
      income from continuing operations
                                             -223,300,000 -141,300,000  12,600,000 23,100,000 3,600,000 -500,000 -16,000,000 -81,600,000 -26,800,000                                   
      loss from discontinued operations, net of tax
                                                 -700,000 -700,000                                       
      income per common share:
                                                                                         
      basic
                                                                                         
      continuing operations attributable to ati per common share
                                             -2,120,000 -1,350,000 -150,000 90,000 180,000  -30,000 -170,000 -790,000 -270,000                                   
      discontinued operations attributable to ati per common share
                                                 20,000 -10,000  -20,000 2,410,000 -50,000                                   
      basic net loss attributable to ati per common share
                   -310,000    -390,000              40,000 -1,120,000   100,000 -4,950,000 -180,000  -352,500 -1,350,000 -150,000  -57,500 -10,000                                       
      diluted
                                                                                         
      amounts attributable to ati common stockholders:
                                                                                         
      loss from continuing operations, net of tax
                                             -226,900,000 -144,600,000 -16,400,000                                          
      loss from continuing operations before income taxes
                                               -21,600,000                                          
      loss from continuing operations
                                               -13,900,000                                          
      basic net income attributable to ati per common share
    860,000  800,000 720,000 680,000  640,000 660,000 520,000 1,480,000 590,000 590,000 550,000 600,000 470,000  240,000 -230,000 380,000  -60,000 -8,860,000 -400,000 -3,340,000 170,000 450,000 880,000 600,000 120,000 330,000 400,000 580,000 460,000   90,000 160,000    -940,000    90,000   -30,000 -190,000 1,620,000 -320,000 40,000 90,000 100,000 330,000 530,000 530,000 290,000 590,000 630,000 580,000   370,000 190,000 390,000 10,000                   
      diluted
                                                                                         
      income from continuing operations, net of tax
                                                10,000,000 19,900,000  -3,800,000 -18,100,000 -83,800,000 -28,400,000                                   
      income from continuing operations before income tax provision
                                                   -3,400,000 -26,000,000 -3,500,000 -35,300,000                                   
      income from discontinued operations, net of tax
                                                   -200,000 -1,900,000 257,200,000 -5,400,000                                   
      income before income tax provision
                                                       7,700,000 15,300,000 56,975,000 54,100,000 89,700,000 84,100,000 72,375,000 95,400,000 100,300,000 93,800,000 25,775,000 9,500,000 60,600,000 33,000,000 725,000 2,600,000   174,500,000 228,000,000 250,100,000 219,900,000 231,125,000 294,000,000 325,900,000 304,600,000 152,525,000 246,400,000 203,500,000 160,200,000   94,700,000 63,300,000 
      the accompanying notes are an integral part of these statements.
                                                                                         
      debt extinguishment costs
                                                                       -9,200,000                  
      basic net income attributable to
                                                                                         
      ati per common share
                                                                 142,500 10,000                       
      diluted net income attributable to
                                                                                         
      interest income
                                                                    -14,600,000    100,000    200,000             
      basic net income per common share attributable to ati common stockholders
                                                                       -140,000 60,000                 
      diluted net income per common share attributable to ati common stockholders
                                                                       -140,000 60,000                 
      income before income tax benefit
                                                                        300,000             61,250,000 87,000,000   
      income before interest, other income, and income taxes
                                                                         176,450,000 232,300,000 253,100,000 220,400,000 232,650,000 293,400,000 328,800,000 308,400,000 157,900,000 252,100,000 210,500,000 169,000,000 69,825,000 98,500,000 106,300,000  
      basic net income per common share
                                                                         1,170,000 1,460,000 1,680,000 1,410,000 1,470,000 1,900,000 2,030,000 1,950,000 1,670,000 1,620,000 1,410,000 1,040,000 1,230,000 910,000 960,000 640,000 
      diluted net income per common share
                                                                         1,160,000 1,450,000 1,660,000 1,400,000 1,450,000 1,880,000 2,000,000 1,920,000 1,630,000 1,580,000 1,370,000 1,000,000 1,170,000 870,000 910,000 610,000 
      curtailment gain, net of restructuring costs
                                                                                         
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-29 2025-12-28 2025-09-28 2025-06-29 2025-03-30 2024-12-29 2024-09-29 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 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 
                                                                                           
        assets
                                                                                           
        current assets:
                                                                                           
        cash and cash equivalents
      401,700,000 416,700,000 372,200,000 319,600,000 475,800,000 721,200,000 406,600,000 425,600,000 394,400,000 743,900,000 432,900,000 267,100,000 196,200,000 584,000,000 329,100,000 274,000,000 316,700,000 687,700,000 1,006,800,000 472,500,000 541,700,000 645,900,000 572,200,000 539,100,000 639,000,000 490,800,000 511,300,000 281,200,000 217,000,000 382,000,000 153,500,000 122,400,000 109,900,000 141,600,000 124,900,000 154,600,000 159,800,000 229,600,000 188,400,000 322,300,000 156,900,000 149,800,000 197,500,000 250,900,000 238,000,000 269,500,000 264,200,000 355,100,000 837,700,000 1,026,800,000 535,700,000 74,100,000 138,000,000 304,600,000 281,000,000 210,300,000 250,300,000 380,600,000 431,500,000 367,800,000 816,300,000 432,300,000 443,300,000 378,700,000 563,500,000 708,800,000 826,300,000 850,700,000 506,000,000 469,900,000 272,600,000 310,200,000 468,000,000 623,300,000 663,600,000 529,600,000 518,000,000 502,300,000 405,900,000 313,200,000 359,100,000 362,700,000 371,700,000 253,200,000 231,200,000 
        accounts receivable
      664,400,000 686,100,000 709,900,000 787,900,000 827,000,000 709,200,000 730,200,000 719,800,000 720,500,000 625,000,000 683,000,000 710,100,000 725,600,000 579,200,000 678,100,000 627,100,000 558,000,000 470,000,000 502,000,000 362,200,000 423,900,000 345,800,000 388,000,000 483,600,000 593,400,000 554,100,000 596,700,000 581,400,000 565,100,000 527,800,000 588,300,000 621,900,000 606,400,000 545,300,000 525,900,000 538,600,000 504,600,000 452,100,000 454,000,000 492,500,000 442,400,000 400,300,000 497,500,000 593,400,000 690,900,000 603,600,000 623,700,000 650,900,000 557,500,000 528,200,000 576,900,000 655,500,000 681,500,000 613,300,000 685,700,000 744,300,000 753,100,000 709,100,000 769,300,000 808,100,000 694,000,000 545,400,000 623,000,000 569,300,000 472,600,000 392,000,000 415,800,000 398,200,000 448,800,000 530,500,000 744,500,000 738,300,000 716,000,000 652,200,000 648,100,000 709,900,000 686,800,000 610,900,000 631,500,000 560,400,000 512,200,000 442,100,000 431,700,000 435,400,000 425,600,000 
        short-term contract assets
      63,100,000 72,800,000 94,300,000 86,400,000 85,900,000 75,600,000 90,500,000 87,600,000 65,300,000 59,100,000 56,600,000 51,800,000 52,700,000 64,100,000 70,200,000 54,300,000 50,800,000  55,700,000 52,300,000 42,000,000  41,700,000 41,600,000 43,500,000  37,800,000 40,900,000 48,700,000  51,600,000 47,700,000 38,600,000                                                     
        inventories
      1,580,300,000 1,403,200,000 1,405,600,000 1,412,600,000 1,396,900,000 1,353,000,000 1,414,500,000 1,317,500,000 1,284,900,000 1,247,500,000 1,353,900,000 1,380,400,000 1,293,800,000 1,195,700,000 1,216,900,000 1,270,900,000 1,189,000,000 1,046,300,000 1,055,800,000 1,059,000,000 1,047,800,000 997,100,000 1,035,900,000 1,103,500,000 1,181,100,000 1,155,300,000 1,168,500,000 1,217,500,000 1,254,400,000 1,211,100,000 1,239,800,000 1,254,100,000 1,210,800,000 1,176,100,000 1,101,100,000 1,076,200,000 1,051,900,000 1,037,000,000 1,078,900,000 1,094,300,000 1,166,300,000 1,271,600,000 1,356,100,000 1,472,900,000 1,472,600,000 1,472,800,000 1,417,700,000 1,406,500,000 1,408,500,000 1,322,100,000 1,344,900,000 1,504,900,000 1,537,500,000 1,536,600,000 1,460,200,000 1,512,500,000 1,511,400,000 1,384,300,000 1,434,500,000 1,465,400,000 1,231,900,000 1,024,500,000 1,012,000,000 1,053,000,000 971,100,000 825,500,000 737,300,000 692,900,000 746,200,000 887,600,000 1,083,900,000 1,171,200,000 1,085,500,000 916,100,000 970,800,000 1,054,000,000 954,700,000 798,700,000 1,044,300,000 835,600,000 701,700,000 607,100,000 609,400,000 628,700,000 568,100,000 
        prepaid expenses and other current assets
      95,100,000 101,200,000 77,800,000 96,000,000 94,400,000 86,000,000 136,600,000 102,400,000 52,800,000 62,200,000 73,300,000 49,200,000 48,000,000 53,400,000 75,100,000 85,400,000 112,300,000 48,800,000 68,800,000 50,500,000 38,000,000 38,300,000 48,500,000 33,800,000 51,000,000 64,300,000 108,100,000 140,400,000 92,700,000 74,600,000 89,200,000 80,200,000 86,100,000 52,700,000 52,200,000 30,700,000 46,300,000 47,800,000 40,800,000 43,300,000 35,100,000 45,900,000 47,500,000 66,300,000 64,100,000 136,200,000 109,400,000 97,700,000 86,900,000 67,600,000 120,600,000 97,300,000 89,400,000 56,100,000 57,900,000 60,400,000 59,900,000 95,500,000 54,200,000 36,300,000 42,700,000 112,900,000 77,000,000 75,600,000 83,100,000 71,300,000 67,700,000 76,200,000 44,900,000 41,400,000 40,200,000 48,300,000 48,200,000 38,300,000 39,400,000 34,700,000 63,100,000 49,400,000 48,700,000 41,200,000 34,300,000 49,300,000 74,100,000 34,600,000 48,000,000 
        total current assets
      2,804,600,000 2,680,000,000 2,659,800,000 2,702,500,000 2,880,000,000 2,945,000,000 2,778,400,000 2,652,900,000 2,517,900,000 2,737,700,000 2,599,700,000 2,458,600,000 2,316,300,000 2,476,400,000 2,369,400,000 2,311,700,000 2,285,700,000 2,306,700,000 2,689,100,000 1,996,500,000 2,093,400,000 2,066,000,000 2,086,300,000 2,201,600,000 2,508,000,000 2,303,000,000 2,422,400,000 2,261,400,000 2,177,900,000 2,246,700,000 2,122,400,000 2,126,300,000 2,051,800,000 1,915,700,000 1,804,100,000 1,800,100,000 1,762,600,000 1,766,500,000 1,762,100,000 1,952,400,000 1,800,700,000 1,867,600,000 2,098,600,000 2,383,500,000 2,465,600,000 2,482,100,000 2,415,000,000 2,513,800,000 2,895,700,000 2,950,800,000 2,693,500,000 2,331,800,000 2,446,400,000 2,510,600,000 2,484,800,000 2,527,500,000 2,574,700,000 2,569,500,000 2,689,500,000 2,691,100,000 2,787,100,000 2,115,100,000 2,160,700,000 2,076,600,000 2,090,300,000 1,997,600,000 2,047,100,000 2,018,000,000 1,745,900,000 1,929,400,000 2,141,200,000 2,268,000,000 2,317,700,000 2,248,700,000 2,348,300,000 2,354,600,000 2,235,900,000 1,987,900,000 2,132,500,000 1,769,100,000 1,635,000,000 1,484,000,000 1,486,900,000 1,351,900,000 1,272,900,000 
        property, plant and equipment
      1,951,500,000 1,940,600,000 1,853,200,000 1,818,000,000 1,788,100,000 1,776,900,000 1,746,500,000 1,705,500,000 1,688,900,000 1,665,900,000 1,626,300,000 1,568,100,000 1,551,800,000 1,549,100,000 1,496,700,000 1,491,300,000 1,502,600,000 1,528,500,000 1,487,600,000 1,486,300,000 1,478,700,000 1,469,200,000 2,466,600,000 2,455,000,000 2,445,500,000 2,450,100,000 2,407,500,000 2,404,900,000 2,470,700,000 2,475,000,000 2,472,600,000 2,479,000,000 2,490,700,000 2,495,700,000 2,490,900,000 2,492,300,000 2,495,800,000 2,498,900,000 2,514,400,000 2,958,900,000 2,962,100,000 2,928,200,000 2,938,200,000 2,946,700,000 2,943,700,000 2,961,800,000 2,937,100,000 2,916,800,000 2,889,300,000 2,874,100,000 2,744,700,000 2,692,400,000 2,597,200,000 2,559,900,000 2,482,300,000 2,444,000,000 2,398,100,000 2,368,800,000 2,307,500,000 2,292,700,000 1,999,200,000 1,989,300,000 1,939,900,000 1,933,500,000 1,921,300,000 1,907,900,000 1,852,500,000 1,787,000,000 1,709,800,000 1,633,600,000 1,523,400,000 1,446,900,000 1,329,900,000 1,239,500,000 1,096,500,000 980,200,000 909,100,000 867,600,000 813,700,000 777,400,000 742,900,000 704,900,000 705,300,000 701,400,000 709,500,000 
        goodwill
      225,200,000 225,200,000 225,200,000 227,200,000 227,200,000 227,200,000 227,200,000 227,200,000 227,200,000 227,200,000 227,200,000 227,200,000 227,200,000 227,200,000 227,200,000 227,200,000 227,200,000 227,900,000 229,000,000 241,900,000 241,600,000 240,700,000 238,400,000 236,400,000 520,800,000 525,800,000 523,800,000 524,800,000 536,800,000 534,700,000 536,400,000 531,000,000 534,200,000 531,400,000 531,900,000 643,500,000 642,600,000 641,900,000 644,400,000 646,900,000 648,600,000 651,400,000                                            
        other assets
      252,800,000 253,800,000 264,500,000 273,300,000 288,700,000 281,500,000 313,700,000 335,800,000 348,100,000 354,300,000 277,900,000 180,800,000 192,000,000 192,900,000 194,500,000 199,200,000 194,400,000 222,100,000 220,800,000 249,300,000 254,800,000 259,000,000 272,600,000 276,400,000 332,800,000 355,700,000 275,200,000 358,200,000 305,600,000 245,400,000 257,600,000 257,000,000 257,200,000 242,600,000 248,200,000 250,400,000 253,400,000 262,700,000 271,400,000 302,800,000 307,700,000 304,500,000 344,100,000 357,600,000 369,600,000 358,300,000 368,300,000 352,000,000 353,600,000 342,000,000 348,000,000 358,400,000 363,100,000 365,700,000 371,400,000 370,800,000 366,900,000 370,900,000 389,400,000 374,600,000 197,100,000 182,400,000 181,000,000 182,900,000 175,700,000 169,600,000 138,800,000 147,000,000 124,700,000 134,900,000 141,600,000 149,800,000 124,700,000 125,200,000 117,400,000 112,800,000 114,400,000 95,400,000 94,000,000 91,100,000 88,100,000 87,100,000 76,500,000 64,200,000 61,400,000 
        total assets
      5,234,100,000 5,099,600,000 5,002,700,000 5,021,000,000 5,184,000,000 5,230,600,000 5,065,800,000 4,921,400,000 4,782,100,000 4,985,100,000 4,731,100,000 4,434,700,000 4,287,300,000 4,445,600,000 4,287,800,000 4,229,400,000 4,236,100,000 4,285,200,000 4,626,500,000 3,974,000,000 4,068,500,000 4,034,900,000 5,063,900,000 5,169,400,000 5,807,100,000 5,634,600,000 5,628,900,000 5,549,300,000 5,491,000,000 5,501,800,000 5,389,000,000 5,393,300,000 5,350,000,000 5,185,400,000 5,075,100,000 5,186,300,000 5,154,400,000 5,170,000,000 5,192,300,000 5,861,000,000 5,719,100,000 5,751,700,000 6,161,100,000 6,469,300,000 6,556,800,000 6,582,600,000 6,503,200,000 6,570,900,000 6,917,500,000 6,898,500,000 6,599,300,000 6,119,600,000 6,174,300,000 6,247,800,000 6,078,800,000 6,080,000,000 6,078,700,000 6,046,900,000 6,127,000,000 6,049,000,000 5,192,500,000 4,493,600,000 4,489,700,000 4,397,800,000 4,403,000,000 4,346,000,000 4,380,000,000 4,321,400,000 4,033,300,000 4,170,400,000 4,312,000,000 4,366,800,000 4,276,400,000 4,095,600,000 3,916,800,000 3,786,100,000 3,584,000,000 3,282,200,000 3,523,400,000 3,115,400,000 2,924,100,000 2,731,600,000 2,653,100,000 2,505,300,000 2,426,100,000 
        liabilities and equity
                                                                                           
        current liabilities:
                                                                                           
        accounts payable
      654,900,000 568,200,000 493,500,000 532,300,000 563,200,000 609,100,000 528,500,000 524,500,000 482,600,000 524,800,000 435,000,000 467,700,000 447,500,000 553,300,000 410,200,000 421,900,000 396,100,000 375,500,000 290,700,000 265,800,000 324,800,000 290,600,000 240,700,000 275,800,000 424,600,000 521,200,000 415,800,000 420,600,000 455,300,000 498,800,000 416,100,000 429,300,000 424,700,000 420,100,000 350,500,000 355,500,000 346,400,000 294,300,000 285,200,000 308,200,000 340,400,000 380,800,000 367,100,000 487,500,000 559,500,000 556,700,000 482,700,000 556,300,000 518,200,000 471,800,000 401,900,000 445,600,000 479,400,000 499,900,000 409,300,000 451,700,000 505,800,000 490,700,000 491,800,000 503,600,000 505,200,000 394,100,000 412,100,000 363,600,000 396,700,000 308,600,000 283,000,000 236,400,000 232,600,000 278,500,000 414,400,000 451,200,000 469,200,000 388,400,000 337,700,000 445,300,000 442,100,000 355,100,000 578,600,000 396,700,000 368,000,000 312,900,000 270,800,000 277,000,000 281,400,000 
        accrued liabilities
      189,100,000                            220,400,000 260,100,000 228,700,000 225,300,000 205,300,000 282,400,000 286,700,000 278,000,000 276,400,000 309,300,000 310,900,000 290,800,000 291,300,000 301,800,000 329,800,000 314,400,000 288,800,000 323,200,000 305,700,000 298,500,000 294,900,000 310,900,000 304,900,000 293,100,000 280,000,000 330,500,000 336,700,000 327,900,000 324,500,000 320,300,000 315,800,000 341,000,000 270,800,000 249,900,000 276,400,000 248,000,000 254,300,000 258,800,000 278,600,000 229,600,000 273,500,000 322,000,000 290,800,000 286,800,000 246,600,000 294,700,000 257,400,000 229,900,000 225,900,000 266,700,000 239,700,000 205,600,000 220,800,000 234,600,000 221,400,000 203,600,000 207,000,000 
        short-term contract liabilities
      154,400,000 146,400,000 159,200,000 171,700,000 187,100,000 169,400,000 146,500,000 160,900,000 161,600,000 163,600,000 110,200,000 137,800,000 149,700,000 149,100,000 120,700,000 125,700,000 133,300,000 116,200,000 86,700,000 103,800,000 118,700,000 111,800,000 97,800,000 109,800,000 114,300,000 78,700,000 97,100,000 69,300,000 77,900,000 71,400,000 69,200,000 70,400,000 66,200,000                                                     
        short-term debt and current portion of long-term debt
      33,200,000 31,100,000 191,700,000 179,300,000 179,900,000 180,400,000 27,900,000 316,800,000 27,100,000 31,900,000 37,500,000 73,900,000 24,900,000 41,700,000 28,900,000 32,600,000 116,700,000 131,300,000 606,900,000 19,300,000 15,700,000 17,800,000 12,200,000 12,800,000 310,700,000 11,500,000 12,100,000 11,500,000 6,400,000 6,600,000 16,600,000 16,300,000 63,700,000 10,100,000    105,100,000    3,900,000    17,800,000    419,900,000    17,100,000    27,300,000    141,400,000      17,500,000 14,700,000 15,200,000 20,900,000 21,700,000 20,900,000 20,900,000 16,500,000 22,200,000 20,700,000 23,700,000 24,300,000 21,100,000 18,000,000 13,400,000 19,700,000 20,200,000 26,700,000 
        other current liabilities
      17,900,000 260,600,000 218,700,000 189,300,000 207,000,000 249,600,000 242,400,000 243,400,000 225,800,000 256,800,000 246,600,000 218,100,000 201,900,000 219,800,000 263,000,000 219,700,000 213,500,000 233,400,000 223,000,000 210,200,000 230,000,000 233,100,000 213,000,000 216,000,000 209,600,000 237,800,000 238,300,000 257,800,000                                                          
        total current liabilities
      1,049,500,000 1,006,300,000 1,063,100,000 1,072,600,000 1,137,200,000 1,208,500,000 945,300,000 1,245,600,000 897,100,000 977,100,000 829,300,000 897,500,000 824,000,000 963,900,000 822,800,000 799,900,000 877,200,000 856,400,000 1,207,300,000 599,100,000 689,200,000 653,300,000 563,700,000 614,400,000 1,059,200,000 849,200,000 763,300,000 759,200,000 760,000,000 836,900,000 730,600,000 741,300,000 759,900,000 712,600,000 673,600,000 701,000,000 795,600,000 708,700,000 601,500,000 605,700,000 828,700,000 686,500,000 737,100,000 888,000,000 937,000,000 959,900,000 839,600,000 903,000,000 1,253,700,000 1,211,000,000 1,168,600,000 1,186,600,000 813,100,000 871,500,000 775,700,000 823,500,000 875,000,000 861,800,000 978,500,000 998,800,000 915,400,000 791,000,000 710,400,000 654,600,000 692,000,000 624,600,000 582,100,000 518,800,000 545,600,000 693,900,000 797,800,000 790,800,000 830,800,000 704,000,000 703,700,000 763,600,000 775,400,000 645,500,000 881,300,000 650,500,000 656,400,000 560,900,000 511,900,000 500,800,000 515,100,000 
        long-term debt
      1,794,700,000 1,718,300,000 1,715,200,000 1,710,700,000 1,713,300,000 1,714,900,000 1,855,500,000 1,854,000,000 2,146,400,000 2,147,700,000 2,147,700,000 1,699,900,000 1,702,100,000 1,706,300,000 1,700,400,000 1,703,300,000 1,707,400,000 1,711,600,000 1,683,600,000 1,602,200,000 1,598,400,000 1,550,000,000 1,529,000,000 1,516,900,000 1,390,000,000 1,387,400,000 1,541,700,000 1,537,100,000 1,536,200,000 1,535,500,000 1,535,300,000 1,535,500,000 1,535,300,000 1,530,600,000 1,877,700,000 1,876,600,000 1,772,500,000 1,771,900,000 1,870,400,000 1,870,100,000 1,492,700,000 1,491,800,000 1,501,600,000 1,502,700,000 1,509,100,000 1,509,100,000 1,509,100,000 1,520,700,000 1,526,800,000 1,527,400,000 1,542,200,000 1,053,600,000 1,462,000,000 1,463,000,000 1,462,500,000 1,474,100,000 1,481,500,000 1,482,000,000 1,483,400,000 1,496,500,000 1,422,500,000 921,900,000 1,039,200,000 1,032,100,000 1,032,300,000 1,037,600,000 1,050,400,000 1,055,900,000 488,800,000 494,600,000 495,000,000 502,300,000 503,500,000 507,300,000 513,000,000 518,500,000 522,100,000 529,900,000 530,500,000 538,000,000 540,900,000 547,000,000 546,700,000 548,100,000 549,600,000 
        accrued postretirement benefits
      154,200,000 158,500,000 153,600,000 157,100,000 160,100,000 164,300,000 163,800,000 167,200,000 170,600,000 175,200,000 173,200,000 176,700,000 180,000,000 184,900,000 243,100,000 247,800,000 252,400,000 258,100,000 269,400,000 317,100,000 321,700,000 326,700,000 300,200,000 303,900,000 307,500,000 312,500,000 301,400,000 305,400,000 309,500,000 318,400,000 301,100,000 306,100,000 311,400,000 317,800,000 303,200,000 308,000,000 313,200,000 317,700,000 311,600,000 316,500,000 328,300,000 359,200,000 388,900,000 397,100,000 407,100,000 415,800,000 420,500,000 425,300,000 432,700,000 442,400,000 475,000,000 480,000,000 487,800,000 495,200,000 469,600,000 473,300,000 479,200,000 488,100,000 439,600,000 439,200,000 417,600,000 423,800,000 409,100,000 413,300,000 415,900,000 424,300,000 444,400,000 449,800,000 449,500,000 446,900,000        428,600,000 457,100,000 458,500,000 459,200,000 461,500,000 466,700,000 468,900,000 470,500,000 
        pension liabilities
      42,300,000 41,400,000 35,100,000 35,700,000 36,900,000 37,200,000 37,100,000 37,900,000 38,800,000 39,700,000 39,700,000 172,000,000 173,800,000 225,600,000 376,600,000 389,500,000 402,500,000 415,400,000 565,900,000 629,400,000 642,800,000 673,600,000 608,900,000 685,000,000 694,300,000 731,500,000 601,900,000 669,600,000 701,100,000 730,000,000 652,700,000 677,600,000 687,200,000 697,000,000 678,200,000 682,900,000 687,800,000 827,900,000 708,600,000 826,700,000 40,500,000 833,800,000 713,000,000 722,100,000 730,200,000 739,300,000 348,400,000 355,800,000 361,800,000 368,200,000 702,400,000 707,800,000 713,700,000 721,100,000 488,000,000 496,100,000 502,700,000 508,900,000 94,100,000 97,400,000 58,400,000 58,300,000 38,000,000 38,500,000 43,800,000 50,600,000 33,600,000 34,500,000 405,200,000 378,200,000        35,800,000 288,000,000 272,900,000 257,800,000 242,900,000 284,300,000 269,900,000 255,600,000 
        other long-term liabilities
      307,100,000 258,400,000 209,900,000 186,900,000 154,200,000 150,500,000 152,100,000 148,800,000 156,000,000 164,900,000 185,300,000 179,400,000 193,100,000 207,700,000 206,500,000 195,000,000 199,400,000 211,000,000 220,100,000 220,100,000 207,100,000 189,900,000 212,300,000 206,900,000 163,500,000 160,800,000 124,900,000 124,300,000 123,100,000 69,200,000 66,700,000 66,600,000 62,500,000 73,200,000 80,800,000 83,300,000 82,900,000 83,400,000 86,200,000 89,900,000 106,800,000 108,300,000 112,200,000 103,000,000 162,000,000 156,200,000 149,300,000 146,000,000 148,600,000 148,200,000 94,900,000 100,500,000 101,000,000 109,900,000 116,300,000 117,500,000 117,100,000 124,700,000 120,400,000 127,500,000 100,500,000 100,600,000 111,200,000 117,300,000 120,500,000 119,300,000 116,000,000 114,800,000 121,900,000 195,500,000 184,400,000 181,700,000 183,100,000 191,200,000 174,900,000 170,200,000 147,100,000 149,800,000 132,100,000 122,200,000 109,800,000 119,400,000 111,700,000 114,700,000 109,500,000 
        total liabilities
      3,347,800,000 3,182,900,000 3,176,900,000 3,163,000,000 3,201,700,000 3,275,400,000 3,153,800,000 3,453,500,000 3,408,900,000 3,504,600,000 3,375,200,000 3,125,500,000 3,073,000,000 3,288,400,000 3,349,400,000 3,335,500,000 3,440,400,000 3,452,500,000 3,946,300,000 3,367,900,000 3,459,200,000 3,393,500,000 3,214,100,000 3,327,100,000 3,614,500,000 3,441,400,000 3,349,000,000 3,410,700,000 3,444,400,000 3,510,200,000 3,305,800,000 3,351,400,000 3,386,700,000 3,340,900,000 3,627,600,000 3,671,900,000 3,665,000,000 3,725,200,000 3,629,600,000 3,761,700,000 3,614,600,000 3,555,200,000 3,643,500,000 3,756,500,000 3,836,700,000 3,861,200,000 3,511,500,000 3,580,200,000 3,938,200,000 3,903,800,000 4,035,200,000 3,532,700,000 3,577,600,000 3,660,700,000 3,333,900,000 3,404,500,000 3,464,800,000 3,475,300,000 3,285,700,000 3,269,000,000 2,989,400,000 2,364,200,000 2,357,000,000 2,267,300,000 2,304,500,000 2,256,400,000 2,226,500,000 2,173,800,000 2,011,000,000 2,209,100,000 1,947,300,000 1,939,700,000 1,990,100,000 1,872,100,000 1,843,900,000 1,904,300,000 1,892,100,000 1,789,600,000 2,289,000,000 2,042,100,000 2,024,100,000 1,931,700,000 1,921,300,000 1,902,400,000 1,900,300,000 
        equity:
                                                                                           
        ati stockholders’ equity:
                                                                                           
        preferred stock, par value 0.10: authorized-50,000,000 shares; issued-none
                                                                                           
        common stock
      14,300,000 14,300,000 14,300,000 14,300,000 14,300,000 14,300,000 14,300,000 13,400,000 13,400,000 13,200,000 13,200,000 13,200,000 13,200,000 13,100,000 13,100,000 13,100,000 12,800,000 12,700,000 12,700,000 12,700,000 12,700,000 12,700,000 12,700,000 12,700,000 12,700,000 12,700,000 12,700,000 12,700,000 12,700,000 12,700,000 12,700,000 12,700,000 12,700,000 12,700,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 11,000,000 10,200,000 10,200,000 10,200,000 10,200,000 10,200,000 10,200,000 10,200,000 10,200,000 10,200,000 10,200,000 10,200,000 10,200,000 10,200,000 10,200,000 10,200,000 10,200,000 10,200,000 10,100,000 10,100,000 10,100,000 10,000,000 9,900,000 9,900,000 9,900,000 9,900,000 
        additional paid-in capital
      1,766,700,000 1,884,600,000 1,886,800,000 1,879,500,000 1,873,800,000 1,943,900,000 1,937,800,000 1,712,900,000 1,703,100,000 1,697,100,000 1,689,500,000 1,682,000,000 1,675,100,000 1,668,100,000 1,662,200,000 1,656,600,000 1,602,500,000 1,596,700,000 1,592,100,000 1,587,500,000 1,580,500,000 1,625,500,000 1,622,200,000 1,617,800,000 1,592,100,000 1,618,000,000 1,612,100,000 1,604,600,000 1,599,700,000 1,615,400,000 1,608,500,000 1,604,100,000 1,599,500,000 1,596,300,000 1,196,400,000 1,191,300,000 1,187,100,000 1,188,800,000 1,183,300,000 1,178,100,000 1,171,900,000 1,161,700,000 1,158,800,000 1,154,900,000 1,154,200,000 1,164,200,000 1,161,900,000 1,156,600,000 1,160,200,000 1,185,900,000 1,181,200,000 1,175,100,000 1,168,500,000 1,181,700,000 1,183,400,000 1,169,700,000 1,161,400,000 1,207,100,000 1,188,200,000 1,176,200,000 653,600,000 658,900,000 647,200,000 640,800,000 640,700,000 653,600,000 647,900,000 641,500,000 639,400,000 651,800,000 650,100,000 644,500,000 639,200,000 693,700,000 663,300,000 656,900,000 650,000,000 637,000,000 578,700,000 562,400,000 542,100,000 535,600,000 508,600,000 506,200,000 503,800,000 
        retained earnings
      586,900,000 468,700,000 372,200,000 262,200,000 161,300,000 64,300,000  78,400,000   398,700,000 323,000,000 247,000,000 176,900,000 100,000,000 38,900,000 103,600,000 72,700,000 102,500,000 53,800,000 103,000,000 106,500,000 1,227,400,000 1,277,600,000 1,700,400,000 1,679,300,000 1,622,800,000 1,511,800,000 1,437,000,000 1,422,000,000 1,380,900,000 1,330,400,000 1,257,800,000 1,184,300,000 1,182,600,000 1,303,800,000 1,294,600,000 1,277,100,000 1,267,100,000 1,806,700,000 1,835,900,000 1,945,900,000 2,181,700,000 2,346,300,000 2,382,400,000 2,398,900,000 2,396,400,000 2,416,500,000 2,440,700,000 2,490,100,000 2,335,900,000 2,389,100,000 2,404,900,000 2,427,600,000 2,443,600,000 2,429,800,000 2,394,900,000 2,361,500,000 2,349,700,000 2,307,300,000 2,264,400,000 2,224,800,000 2,228,400,000 2,245,200,000 2,227,200,000 2,230,500,000 2,210,800,000 2,227,200,000 2,260,300,000 2,286,700,000 2,230,400,000 2,104,800,000 1,954,500,000 1,830,700,000 1,701,600,000 1,524,100,000 1,335,800,000 1,156,300,000 1,002,600,000 854,700,000 724,400,000 642,600,000 541,400,000 472,400,000 388,300,000 
        treasury stock
      -534,500,000 -502,700,000 -507,400,000 -356,100,000 -105,000,000 -82,600,000 -13,300,000 -359,300,000 -360,100,000 -184,000,000 -153,600,000 -107,900,000 -107,800,000 -87,000,000 -51,900,000 -36,800,000 -99,700,000 -4,800,000 -4,800,000 -4,700,000 -4,700,000    -800,000 -18,200,000 -18,200,000 -18,300,000 -19,700,000 -30,600,000 -30,600,000 -30,600,000 -31,700,000 -26,100,000 -25,900,000 -25,400,000 -27,100,000 -28,000,000 -27,900,000 -27,700,000 -28,700,000 -21,300,000 -20,400,000 -20,600,000 -22,200,000 -44,300,000 -44,500,000 -44,200,000 -51,300,000 -79,600,000 -78,800,000 -79,200,000 -81,100,000 -111,300,000 -119,800,000 -122,600,000 -126,600,000 -162,700,000 -162,900,000 -164,200,000 -168,700,000 -188,000,000 -183,700,000 -184,000,000 -185,200,000 -208,600,000 -208,400,000 -208,700,000 -211,700,000 -244,800,000 -280,100,000 -127,600,000 -102,000,000 -75,400,000 -15,900,000 -19,500,000 -25,900,000  -400,000   -18,800,000 -32,900,000 -60,100,000 -63,800,000 
        accumulated other comprehensive loss, net of tax
      -62,900,000 -60,400,000 -58,900,000 -56,500,000 -71,600,000 -89,500,000 -74,600,000 -90,200,000 -88,800,000 -83,200,000 -708,900,000 -716,300,000 -731,000,000 -725,200,000 -909,900,000 -908,900,000 -960,500,000 -991,700,000 -1,161,100,000 -1,176,300,000 -1,208,600,000 -1,223,600,000 -1,128,600,000 -1,172,800,000 -1,216,600,000 -1,201,700,000 -1,061,400,000 -1,084,400,000 -1,095,500,000 -1,133,800,000 -991,300,000 -991,600,000 -992,200,000 -1,027,800,000 -1,016,300,000 -1,067,200,000 -1,071,400,000 -1,093,700,000 -961,700,000 -973,700,000 -994,900,000 -1,014,500,000 -925,400,000 -907,300,000 -930,800,000 -931,400,000 -653,600,000 -664,200,000 -694,300,000 -713,200,000 -982,600,000 -1,004,800,000 -1,016,200,000 -1,029,400,000 -875,900,000 -912,400,000 -925,700,000 -941,600,000 -637,300,000 -639,600,000 -649,000,000 -665,100,000 -653,900,000 -662,800,000 -673,400,000 -673,500,000 -581,800,000 -594,700,000 -747,200,000 -742,600,000 -245,900,000 -204,800,000 -215,600,000 -235,700,000 -286,300,000 -289,900,000 -278,200,000 -310,800,000 -356,600,000 -353,900,000 -376,500,000 -369,400,000 -295,200,000 -325,500,000 -312,400,000 
        total ati stockholders’ equity
      1,770,500,000 1,804,500,000 1,707,000,000 1,743,400,000 1,872,800,000 1,850,400,000 1,791,400,000 1,355,200,000 1,263,600,000 1,373,000,000 1,238,900,000 1,194,000,000 1,096,500,000 1,045,900,000 813,500,000 762,900,000 658,700,000 685,600,000 541,400,000 473,000,000 482,900,000 521,100,000 1,733,700,000 1,735,300,000 2,087,800,000 2,090,100,000 2,168,000,000 2,026,400,000 1,934,200,000 1,885,700,000 1,980,200,000 1,925,000,000 1,846,100,000 1,739,400,000 1,347,800,000 1,413,500,000 1,394,200,000 1,355,200,000 1,471,800,000 1,994,400,000 1,995,200,000 2,082,800,000 2,405,700,000 2,584,300,000 2,594,600,000 2,598,400,000 2,871,200,000 2,875,700,000 2,866,300,000 2,894,200,000 2,466,700,000 2,491,200,000 2,487,100,000 2,479,600,000 2,642,300,000 2,575,500,000 2,515,000,000 2,475,300,000 2,748,700,000 2,690,700,000 2,110,500,000 2,040,800,000 2,048,200,000 2,049,400,000 2,019,500,000 2,012,200,000 2,078,700,000 2,075,500,000 1,951,000,000                 
        noncontrolling interests
      115,800,000 112,200,000 118,800,000 114,600,000 109,500,000 104,800,000 120,600,000 112,700,000 109,600,000 107,500,000 117,000,000 115,200,000 117,800,000 111,300,000 124,900,000 131,000,000 137,000,000 147,100,000 138,800,000 133,100,000 126,400,000 120,300,000 116,100,000 107,000,000 104,800,000 103,100,000 111,900,000 112,200,000 112,400,000 105,900,000 103,000,000 116,900,000 117,200,000 105,100,000 99,700,000 100,900,000 95,200,000 89,600,000 90,900,000 104,900,000 103,200,000 101,600,000 99,800,000 116,400,000 113,400,000 110,900,000 108,400,000 102,900,000 100,800,000 100,500,000 97,400,000 95,700,000 109,600,000 107,500,000 102,600,000 100,000,000 98,900,000 96,300,000 92,600,000 89,300,000 92,600,000 88,600,000 84,500,000 81,100,000 79,000,000 77,400,000 74,800,000 72,100,000 71,300,000                 
        total equity
      1,886,300,000  1,825,800,000 1,858,000,000 1,982,300,000  1,912,000,000 1,467,900,000 1,373,200,000  1,355,900,000 1,309,200,000 1,214,300,000  938,400,000 893,900,000 795,700,000  680,200,000 606,100,000 609,300,000  1,849,800,000 1,842,300,000 2,192,600,000  2,279,900,000 2,138,600,000 2,046,600,000  2,083,200,000 2,041,900,000 1,963,300,000  1,447,500,000 1,514,400,000 1,489,400,000  1,562,700,000 2,099,300,000 2,098,400,000  2,505,500,000 2,700,700,000 2,708,000,000  2,979,600,000 2,978,600,000 2,967,100,000  2,564,100,000 2,586,900,000 2,596,700,000  2,744,900,000 2,675,500,000 2,613,900,000  2,841,300,000 2,780,000,000 2,203,100,000  2,132,700,000 2,130,500,000 2,098,500,000  2,153,500,000 2,147,600,000 2,022,300,000                 
        total liabilities and equity
      5,234,100,000  5,002,700,000 5,021,000,000 5,184,000,000  5,065,800,000 4,921,400,000 4,782,100,000  4,731,100,000 4,434,700,000 4,287,300,000  4,287,800,000 4,229,400,000 4,236,100,000  4,626,500,000 3,974,000,000 4,068,500,000  5,063,900,000 5,169,400,000 5,807,100,000  5,628,900,000 5,549,300,000 5,491,000,000  5,389,000,000 5,393,300,000 5,350,000,000  5,075,100,000 5,186,300,000 5,154,400,000  5,192,300,000 5,861,000,000 5,719,100,000  6,161,100,000 6,469,300,000 6,556,800,000  6,503,200,000 6,570,900,000 6,917,500,000  6,599,300,000 6,119,600,000 6,174,300,000  6,078,800,000 6,080,000,000 6,078,700,000  6,127,000,000 6,049,000,000 5,192,500,000  4,489,700,000 4,397,800,000 4,403,000,000  4,380,000,000 4,321,400,000 4,033,300,000                 
        liabilities and stockholders’ equity
                                                                                           
        total stockholders’ equity
       1,916,700,000    1,955,200,000    1,480,500,000    1,157,200,000    832,700,000    641,400,000    2,193,200,000    1,991,600,000    1,844,500,000    1,444,800,000    2,184,400,000    2,709,300,000    2,994,700,000    2,587,100,000    2,571,600,000    2,129,400,000    2,089,600,000    1,961,300,000 2,364,700,000 2,427,100,000 2,286,300,000 2,223,500,000 2,072,900,000 1,881,800,000 1,691,900,000 1,492,600,000 1,234,400,000 1,073,300,000 900,000,000 799,900,000 731,800,000 602,900,000 525,800,000 
        total liabilities and stockholders’ equity
       5,099,600,000    5,230,600,000    4,985,100,000    4,445,600,000    4,285,200,000    4,034,900,000    5,634,600,000    5,501,800,000    5,185,400,000    5,170,000,000    5,751,700,000    6,582,600,000    6,898,500,000    6,247,800,000    6,046,900,000    4,493,600,000    4,346,000,000    4,170,400,000 4,312,000,000 4,366,800,000 4,276,400,000 4,095,600,000 3,916,800,000 3,786,100,000 3,584,000,000 3,282,200,000 3,523,400,000 3,115,400,000 2,924,100,000 2,731,600,000 2,653,100,000 2,505,300,000 2,426,100,000 
        retained loss
            -72,800,000  -4,000,000 -70,100,000                                                                            
        current assets held for sale
                      58,900,000                                                                     
        long-term assets held for sale
                      26,200,000                                                                     
        current liabilities held for sale
                      17,600,000                                                                     
        long-term liabilities held for sale
                      1,500,000                                                                     
        shot-term contract assets
                       53,900,000    38,900,000    38,500,000    51,200,000                                                        
        deferred income taxes
                                15,800,000 15,100,000 14,500,000 12,900,000 12,100,000 9,700,000 10,700,000 9,700,000 14,100,000 20,100,000 13,000,000 15,600,000 51,300,000 52,800,000 59,100,000 75,600,000 36,200,000 67,800,000 70,800,000 62,200,000 33,700,000 26,200,000 15,700,000    31,300,000 71,500,000 12,900,000 16,600,000 16,300,000 23,500,000 26,000,000 13,500,000 2,200,000  5,400,000  11,800,000 63,100,000 20,600,000 49,900,000 263,800,000   36,800,000  18,800,000 26,400,000 26,400,000 13,300,000 26,600,000 2,100,000 18,700,000 27,700,000 22,800,000 59,300,000 61,600,000 53,400,000 
        long-term contract liabilities
                                   7,300,000 7,300,000 14,600,000 19,700,000                                                     
        long-term contract assets
                                      16,100,000                                                     
        short term debt and current portion of long-term debt
                                        36,400,000 67,500,000 172,800,000  5,400,000 6,700,000 156,500,000  4,000,000 18,300,000 17,900,000  17,500,000 17,400,000 420,000,000  419,900,000 420,300,000 17,100,000  16,800,000 27,300,000 28,400,000  144,900,000 154,200,000 139,400,000  21,900,000 38,000,000 32,100,000 33,500,000 20,200,000                   
        redeemable noncontrolling interest
                                              6,100,000 12,100,000 12,100,000 12,100,000 12,100,000 12,100,000 12,100,000 12,100,000 12,200,000                                     
        cost in excess of net assets acquired
                                                780,200,000 781,500,000 777,900,000 780,400,000 782,800,000 785,100,000 775,500,000 727,900,000 728,100,000 737,000,000 736,300,000 740,100,000 740,300,000 737,700,000 739,000,000 737,700,000 740,600,000 690,600,000 209,100,000 206,800,000 208,100,000 204,800,000 203,900,000 207,800,000 196,300,000 197,300,000 189,100,000 190,900,000 204,200,000 209,700,000 210,200,000 209,800,000 209,800,000 209,400,000 208,500,000 206,500,000 206,100,000 206,000,000 200,600,000 199,700,000 202,800,000 203,900,000 206,600,000 
        current assets of discontinued operations
                                                     3,600,000 5,100,000 6,100,000 115,400,000                                   
        non-current assets of discontinued operations
                                                     3,200,000 3,400,000  85,000,000                                   
        current liabilities of discontinued operations
                                                     4,600,000 4,900,000 4,900,000 33,700,000                                   
        noncurrent assets of discontinued operations
                                                       3,700,000                                    
        preferred stock, par value 0.10: authorized- 50,000,000 shares; issued-none
                                                                                           
        preferred stock, par value 0.10: authorized—50,000,000 shares; issued—none
                                                                                           
        prepaid pension asset
                                                                        124,700,000 122,200,000   266,400,000 255,600,000 244,700,000 230,300,000            
        stockholders’ equity:
                                                                                           
        preferred stock, par value 0.10: authorized - 50,000,000 shares; issued – none
                                                                                           
        accrued income taxes
                                                                            29,000,000 14,300,000 71,200,000  92,100,000 66,200,000 86,700,000  38,700,000 27,100,000 49,600,000     
        retirement benefits
                                                                            470,100,000 464,900,000 472,700,000 469,600,000 452,300,000 452,000,000 447,500,000         
        prepaid pension cost
                                                                                19,700,000 11,200,000          
        deferred pension asset
                                                                                    100,600,000 100,600,000 100,600,000 100,600,000 122,300,000 122,300,000 122,300,000 
        preferred stock, par value 0.10: authorized - 50,000,000 shares; issued - none
                                                                                           
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-29 2025-09-28 2025-06-29 2025-03-30 2024-09-29 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 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 
                                                                                           
          operating activities:
                                                                                           
          net income
        120,500,000 318,100,000 204,500,000 100,500,000 240,600,000 154,000,000 68,400,000 192,500,000 79,600,000 79,100,000 72,200,000 81,200,000 64,400,000 -34,300,000 35,200,000 -24,600,000   -2,400,000 -1,116,300,000 -47,000,000 -419,900,000 23,600,000 60,000,000 115,300,000 78,500,000 16,300,000 45,000,000 55,600,000 75,600,000 60,500,000   13,400,000 21,100,000    -98,100,000    12,600,000   -700,000 -17,900,000 175,600,000 -32,200,000 6,600,000 11,600,000 13,500,000 37,300,000 58,700,000 58,300,000 34,200,000 64,200,000 66,000,000 58,700,000 17,400,000 3,300,000 38,200,000 19,800,000 40,400,000 4,000,000 -11,700,000 5,300,000 110,900,000 144,100,000 168,900,000 142,000,000 148,900,000 193,900,000 206,500,000 197,800,000 167,100,000 161,900,000 140,400,000 102,500,000 118,800,000 88,300,000 91,700,000 61,000,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                           
          depreciation and amortization
        45,000,000 125,000,000 82,400,000 40,800,000 112,400,000 73,900,000 36,000,000 39,500,000 35,600,000 35,900,000 35,100,000 35,800,000 35,600,000 36,000,000 35,500,000 35,900,000 35,600,000 36,300,000 36,100,000 35,000,000 35,400,000 35,600,000 37,300,000 36,500,000 37,000,000 38,900,000 38,700,000 39,300,000 38,400,000 38,900,000 39,800,000 40,100,000 40,100,000 40,300,000 40,300,000 40,100,000 42,400,000 43,700,000 44,100,000 48,500,000 47,800,000 48,000,000 45,600,000 45,200,000 44,100,000 43,500,000 44,000,000 46,400,000 46,600,000 48,400,000 48,500,000 48,900,000 48,900,000 48,200,000 48,000,000 47,200,000 46,600,000 43,200,000 37,400,000 35,500,000 36,200,000 35,200,000 34,600,000 36,000,000 32,200,000 32,100,000 32,300,000 32,100,000 30,200,000 29,200,000 27,300,000 27,700,000 26,600,000 25,000,000 23,600,000 23,800,000 21,400,000 20,200,000 18,800,000 21,600,000 18,700,000 19,200,000 17,800,000 
          non-cash restructuring charges
        4,800,000                                                                                  
          share-based compensation
        6,400,000 22,300,000 14,600,000 7,200,000 26,600,000 17,200,000 6,200,000 7,600,000 7,400,000 7,000,000 7,100,000                                                                         
          deferred taxes
        5,500,000 36,500,000 33,500,000 9,000,000 56,500,000 30,300,000 12,000,000 -140,400,000 1,600,000 -300,000 900,000 -2,300,000 2,400,000 1,000,000 -1,200,000 -900,000 900,000 1,400,000 -400,000 -28,600,000 400,000 89,800,000 8,300,000 -45,000,000 1,400,000 1,100,000 1,600,000 -700,000 2,700,000 300,000 -200,000 -3,100,000 -5,900,000 6,400,000 1,200,000 -41,700,000 -15,700,000 -23,700,000 -38,700,000 -127,600,000 19,200,000 -14,600,000 5,000,000 16,700,000 4,500,000 12,200,000 -1,700,000 -6,000,000 19,000,000 21,100,000 36,000,000 13,500,000 -15,300,000 -5,600,000 -12,000,000 22,600,000 43,200,000 -10,700,000 -2,400,000 32,200,000 34,000,000 11,200,000 24,800,000 28,100,000                    
          net gain from disposal of property, plant and equipment
        100,000 -10,600,000                                                                                  
          net loss on sales of businesses
         2,600,000                                                                                  
          changes in operating assets and liabilities:
                                                                                           
          inventories
        -179,000,000 -57,500,000 -50,600,000 -40,800,000 -198,400,000 -94,200,000 -37,400,000 106,400,000 26,500,000 -86,600,000 -98,100,000 21,200,000 53,900,000 -84,600,000 -181,300,000 9,500,000 -1,500,000 -11,100,000 -50,800,000 38,900,000 67,500,000 77,600,000 -25,800,000 13,200,000 48,800,000 6,700,000 -43,300,000 28,700,000 14,600,000 -43,400,000 -108,400,000 -75,100,000 -24,900,000 -24,300,000 -14,900,000 42,000,000 15,400,000 72,000,000 105,300,000 84,500,000 116,800,000 -400,000 300,000 -55,100,000 -10,600,000 4,600,000 -82,600,000 19,900,000 95,100,000 32,500,000 -900,000 -76,400,000 52,400,000 -1,200,000 -127,100,000 50,300,000 30,200,000 -100,400,000 -207,400,000 -12,500,000 40,900,000 -81,800,000 -145,600,000 -82,400,000 -44,400,000 53,300,000 141,300,000 196,400,000 87,300,000 -85,800,000 -169,300,000 54,700,000 83,200,000 -99,300,000 -156,000,000 245,700,000 -208,800,000 -133,900,000 -94,600,000 2,300,000 19,300,000 -54,400,000 -55,100,000 
          accounts receivable
        21,500,000 1,700,000 -71,900,000 -115,000,000 -111,300,000 -103,400,000 -95,600,000 57,900,000 27,200,000 15,200,000 -146,400,000 95,900,000 -51,100,000 -65,100,000 -108,200,000 32,000,000 -141,600,000 61,700,000 -78,100,000 42,200,000 95,700,000 109,700,000 -39,200,000 40,400,000 -14,800,000 -40,400,000 -37,300,000 59,000,000 33,800,000 -15,100,000 -61,700,000 -19,400,000 12,700,000 -34,000,000 -52,500,000 1,900,000 38,500,000 -50,000,000 -42,200,000 97,200,000 95,900,000 97,500,000 -87,300,000 19,600,000 29,800,000 -91,100,000 -28,600,000 52,300,000 31,000,000 26,000,000 -68,200,000 72,400,000 58,500,000 8,900,000 -44,000,000 60,100,000 38,800,000 -29,100,000 -148,600,000 77,600,000 -53,700,000 -96,800,000 -80,500,000 26,700,000 -17,600,000 50,600,000 81,700,000 214,000,000 -6,200,000 -22,300,000 -63,800,000 -4,100,000 61,800,000 -23,100,000 -75,900,000 20,600,000 -71,100,000 -48,200,000 -70,100,000 -10,600,000 3,700,000 -4,100,000 -67,700,000 
          accounts payable
        94,800,000 -94,400,000 -56,000,000 -34,600,000 20,200,000 16,700,000 -33,500,000 78,400,000 -41,900,000 11,500,000 -77,800,000 103,900,000 -10,400,000 27,000,000 35,600,000 87,900,000 25,500,000 -59,000,000 34,100,000 50,000,000 -35,100,000 -148,900,000 -96,500,000 105,300,000 2,300,000 -34,000,000 -43,500,000 82,700,000 -13,300,000 4,500,000 79,800,000 69,600,000 -2,000,000 11,000,000 47,200,000 9,000,000 -22,900,000 5,900,000 -43,200,000 -21,600,000 -120,400,000 -72,000,000 2,700,000 74,100,000 -74,200,000 36,300,000 45,900,000 69,600,000 -23,200,000 -33,800,000 -20,400,000 90,600,000 -42,400,000 -54,200,000 15,200,000 -1,100,000 -11,400,000 -48,600,000 111,100,000 -17,900,000 48,500,000 -33,200,000 88,100,000 25,600,000 46,600,000 3,800,000 -45,900,000 -136,000,000 -36,700,000 -18,100,000 80,900,000 50,700,000 -107,600,000 3,200,000 87,000,000 -223,600,000 182,000,000 28,600,000 55,200,000 42,100,000 -6,200,000 -7,100,000 10,200,000 
          retirement benefits
        -3,100,000 -6,000,000 -4,100,000 -2,300,000 -7,900,000 -5,700,000 -3,400,000 294,800,000 -211,300,000 10,900,000 -40,600,000 -49,100,000 1,400,000 1,700,000 -700,000 2,200,000 -97,700,000 1,400,000 -16,600,000 -13,600,000 -61,300,000 6,000,000 -23,000,000 -17,300,000 -51,800,000 -15,800,000 -18,400,000 -22,500,000 -13,000,000 2,400,000 500,000 7,300,000 17,400,000 -6,900,000 -128,100,000 14,600,000 -104,900,000 2,900,000 7,400,000 6,400,000 2,900,000 2,500,000 2,500,000 -16,200,000 8,400,000 6,700,000 4,200,000 20,100,000 18,200,000 15,700,000 16,600,000 18,500,000 13,600,000 15,300,000 11,500,000 7,000,000 6,100,000 2,700,000 3,800,000 11,300,000 8,400,000 9,000,000 5,600,000 9,200,000 9,600,000 -328,900,000 29,500,000 -36,200,000 -2,900,000 -7,500,000 -6,300,000 -106,600,000 -200,000 4,300,000 100,000         
          accrued liabilities and other
        11,700,000 -39,200,000 -87,300,000 -61,300,000 -106,400,000 -84,400,000 -51,500,000 54,800,000 -39,100,000 -5,200,000 -37,300,000 9,100,000 26,800,000 -2,600,000 -56,400,000 56,500,000 -4,800,000 -19,600,000 11,200,000 70,000,000 4,600,000 42,600,000 2,400,000 13,300,000 25,600,000 6,300,000 -44,600,000 43,300,000 -37,200,000 21,300,000 -43,900,000 11,900,000 4,800,000 17,600,000 -24,200,000 -13,200,000 17,400,000 -3,200,000 -400,000 -17,500,000 -4,300,000 32,800,000 -30,000,000 -3,100,000 -9,800,000 26,300,000 -9,300,000 62,200,000 43,000,000 20,900,000 -48,700,000 18,500,000 18,000,000 22,500,000 5,100,000 -19,200,000 -17,900,000 26,200,000 51,600,000 -33,100,000 31,500,000 -8,100,000 -20,800,000 -19,500,000 39,900,000 2,700,000 -30,900,000  -19,800,000 21,200,000 -23,900,000  17,600,000 20,900,000 -80,100,000  25,400,000 4,200,000 -17,900,000  -2,700,000 1,800,000 17,000,000 
          cash from operating activities
        128,200,000 298,500,000 69,000,000 -92,500,000 26,300,000 2,300,000 -98,800,000 417,200,000 -114,200,000 68,100,000 -285,200,000 324,300,000 123,000,000 -5,200,000 -217,200,000 260,900,000 -142,200,000 -34,500,000 -68,100,000 121,900,000 59,400,000 101,000,000 -115,400,000 240,100,000 94,400,000 25,600,000 -130,000,000 276,200,000 81,600,000 82,100,000 -47,100,000 76,200,000 31,700,000 24,700,000 -110,200,000 68,000,000 -78,100,000 27,900,000 -61,500,000 22,500,000 17,400,000 79,500,000 12,000,000 94,100,000 -700,000 19,400,000 -56,900,000 141,000,000 169,400,000 115,400,000 -57,400,000 181,700,000 186,000,000 78,000,000 -18,200,000 189,300,000 179,500,000 -21,700,000 -50,300,000 91,000,000 129,500,000 -121,400,000 -72,000,000 69,100,000 68,100,000 -87,600,000 168,900,000 409,900,000 248,300,000 30,300,000 66,000,000 229,100,000 294,000,000 112,000,000 74,700,000 129,400,000 149,500,000 -5,600,000 35,200,000 27,000,000 135,800,000 64,500,000 -4,700,000 
          capital expenditures
        -55,200,000 -187,900,000 -125,400,000 -53,300,000 -191,800,000 -126,000,000 -65,800,000 -53,400,000 -44,000,000 -42,900,000 -60,400,000 -30,400,000 -45,700,000 -28,800,000 -26,000,000 -48,400,000 -42,800,000 -35,000,000 -26,400,000 -41,900,000 -28,600,000 -36,900,000 -29,100,000 -70,100,000 -46,800,000 -27,800,000 -23,500,000 -37,900,000 -30,700,000 -29,000,000 -41,600,000 -37,400,000 -30,000,000 -30,500,000 -24,800,000 -27,300,000 -29,600,000 -75,800,000 -69,500,000 -45,000,000 -36,200,000 -40,700,000 -22,600,000 -68,200,000 -59,600,000 -58,300,000 -39,600,000 -217,200,000 -171,800,000 -136,800,000 -86,900,000 -136,400,000 -79,900,000 -95,800,000 -69,900,000 -109,400,000 -71,100,000 -55,500,000 -42,200,000 -85,900,000 -35,600,000 -46,400,000 -51,200,000 -107,300,000 -96,600,000 -102,900,000 -108,600,000 -150,600,000 -109,700,000 -143,400,000 -112,000,000 -166,400,000 -129,500,000 -93,800,000 -57,700,000 -75,500,000 -57,700,000 -49,700,000 -52,300,000 -48,900,000 -21,400,000 -12,600,000 -7,200,000 
          free cash flows
        73,000,000 110,600,000 -56,400,000 -145,800,000 -165,500,000 -123,700,000 -164,600,000 363,800,000 -158,200,000 25,200,000 -345,600,000 293,900,000 77,300,000 -34,000,000 -243,200,000 212,500,000 -185,000,000 -69,500,000 -94,500,000 80,000,000 30,800,000 64,100,000 -144,500,000 170,000,000 47,600,000 -2,200,000 -153,500,000 238,300,000 50,900,000 53,100,000 -88,700,000 38,800,000 1,700,000 -5,800,000 -135,000,000 40,700,000 -107,700,000 -47,900,000 -131,000,000 -22,500,000 -18,800,000 38,800,000 -10,600,000 25,900,000 -60,300,000 -38,900,000 -96,500,000 -76,200,000 -2,400,000 -21,400,000 -144,300,000 45,300,000 106,100,000 -17,800,000 -88,100,000 79,900,000 108,400,000 -77,200,000 -92,500,000 5,100,000 93,900,000 -167,800,000 -123,200,000 -38,200,000 -28,500,000 -190,500,000 60,300,000 259,300,000 138,600,000 -113,100,000 -46,000,000 62,700,000 164,500,000 18,200,000 17,000,000 53,900,000 91,800,000 -55,300,000 -17,100,000 -21,900,000 114,400,000 51,900,000 -11,900,000 
          investing activities:
                                                                                           
          purchases of property, plant and equipment
        -55,200,000 -187,900,000 -125,400,000 -53,300,000 -191,800,000 -126,000,000 -65,800,000 -53,400,000 -44,000,000 -42,900,000 -60,400,000 -30,400,000 -45,700,000 -28,800,000 -26,000,000 -48,400,000 -42,800,000 -35,000,000 -26,400,000 -41,900,000 -28,600,000 -36,900,000 -29,100,000 -70,100,000 -46,800,000 -27,800,000 -23,500,000 -37,900,000 -30,700,000 -29,000,000 -41,600,000 -37,400,000 -30,000,000 -30,500,000 -24,800,000 -27,300,000 -29,600,000 -75,800,000 -69,500,000 -45,000,000 -36,200,000 -40,700,000 -22,600,000 -68,200,000 -59,600,000 -58,300,000 -39,600,000 -217,200,000 -171,800,000 -136,800,000 -86,900,000 -136,400,000 -79,900,000 -95,800,000 -69,900,000 -109,400,000 -71,100,000 -55,500,000 -42,200,000 -85,900,000 -35,600,000 -46,400,000 -51,200,000 -107,300,000 -96,600,000 -102,900,000 -108,600,000 -150,600,000 -109,700,000 -143,400,000 -112,000,000 -166,400,000 -129,500,000 -93,800,000 -57,700,000 -75,500,000 -57,700,000 -49,700,000 -52,300,000 -48,900,000 -21,400,000 -12,600,000 -7,200,000 
          proceeds from sales of businesses, net of transaction costs
        1,600,000 21,200,000 2,000,000                     2,200,000                                                            
          other
         6,800,000 4,100,000 2,700,000 3,000,000 3,000,000 1,000,000 2,900,000 -100,000 1,000,000 200,000 -100,000 -100,000 1,000,000 1,600,000 -100,000 -100,000 500,000 400,000 1,000,000 -100,000                                                           
          cash from investing activities
        -53,600,000 -149,000,000 -119,200,000 -50,600,000 -178,200,000 -117,100,000 -63,800,000 -50,000,000 -42,400,000 -41,500,000 -59,300,000 -25,700,000 -45,300,000 -31,500,000 -24,200,000 -28,800,000 10,300,000 -33,700,000 -25,100,000 -39,500,000 -27,400,000 -36,600,000 -25,200,000 -67,700,000 138,000,000 35,000,000 -23,600,000 -36,000,000 -39,300,000 -28,300,000 -41,500,000 -37,500,000 -30,100,000 -29,800,000 -22,200,000 -27,200,000 -29,300,000 -74,800,000 -68,700,000 -45,100,000 -36,200,000 -41,300,000 -22,500,000 -68,100,000 -59,800,000 -79,400,000 -108,900,000 383,700,000 -171,500,000 -137,000,000 -86,200,000 -134,600,000 -79,300,000 -95,800,000 -69,000,000 -109,700,000 -70,700,000 -402,600,000 -41,700,000 -84,400,000 -35,800,000 -46,000,000 -50,600,000 -151,100,000 -89,800,000 -103,600,000 -109,200,000 -150,100,000 -108,200,000 -143,900,000 -111,700,000 -166,900,000 -137,500,000 -89,600,000 -57,700,000 -74,800,000 -57,400,000 -48,000,000 -52,500,000 -46,400,000 -24,100,000 -30,900,000 -7,800,000 
          financing activities:
                                                                                           
          borrowings on long-term debt
        105,000,000              675,000,000   6,400,000       700,000 6,400,000 1,200,000                                              3,400,000   
          payments on long-term debt and finance leases
        -38,600,000 -24,200,000 -16,300,000 -8,000,000 -21,900,000 -14,100,000 -7,100,000 -3,200,000 -10,700,000 -5,600,000 -5,700,000 -6,500,000 -5,000,000 -6,600,000 -5,000,000 -504,600,000 -3,900,000 -4,100,000 -3,000,000 -2,600,000 -2,300,000 -205,200,000 -2,000,000 -502,300,000 -2,000,000 -1,800,000 -1,500,000                                                         
          net borrowings under credit facilities
        900,000                        -300,000    600,000 -47,500,000 50,900,000 -26,400,000 -31,400,000 -8,300,000 67,700,000 700,000 -100,000 -149,700,000 152,200,000              -10,600,000    -4,300,000    -4,300,000 6,200,000 -1,000,000                300,000    1,500,000 
          purchase of treasury stock
        -75,000,000 -470,000,000 -320,000,000 -70,000,000 -190,000,000 -150,000,000 -150,000,000 -30,100,000 -45,000,000 -10,100,000 -35,000,000 -15,000,000 -89,900,000                                                     -36,500,000 -153,400,000 -26,100,000 -62,300,000             
          shares repurchased for income tax withholding on share-based compensation and other
        -81,100,000 -29,700,000 -29,500,000 -29,500,000 -25,300,000 -24,900,000 -24,900,000  -300,000 -100,000 -10,700,000  -600,000 -5,000,000  -100,000 -4,700,000  -7,800,000  -9,900,000  -6,500,000                                                     
          cash from financing activities
        -88,800,000 -512,600,000 -365,800,000 -107,500,000 -166,200,000 -193,900,000 -186,900,000 -56,200,000 322,400,000 44,300,000 -43,300,000 -43,700,000 -22,600,000 -6,000,000 -129,600,000 -551,200,000 666,200,000 -1,000,000 -11,000,000 -8,700,000 1,100,000 -164,300,000 288,800,000 -192,900,000 -2,300,000 3,600,000 -11,400,000 -11,700,000 -11,200,000 -41,300,000 56,900,000 -22,000,000 -31,300,000 -100,000 62,600,000 400,000 -26,500,000 212,300,000 137,300,000 -25,100,000 -34,600,000 -25,300,000 -21,000,000 -20,700,000 -30,400,000 -422,600,000 -23,300,000 -33,600,000 463,700,000 -42,300,000 -23,000,000 -23,500,000 -36,000,000 -22,200,000 -43,100,000 -130,500,000 -45,100,000 -24,200,000 476,000,000 -17,600,000 -29,100,000 -17,400,000 -22,700,000 -35,500,000 -2,700,000 535,900,000 -23,600,000 -62,500,000 -177,700,000 -44,200,000 -109,600,000 -102,500,000 -22,500,000 -10,800,000 -1,300,000 41,800,000 600,000 7,700,000 13,700,000 10,400,000 6,800,000 -11,600,000 -7,100,000 
          effect of exchange rate changes on cash and cash equivalents
        -800,000 14,100,000 14,400,000 5,200,000                                                                                
          decrease in cash and cash equivalents
        -15,000,000 -349,000,000 -401,600,000 -245,400,000 -337,300,000 -318,300,000 -349,500,000  165,800,000 70,900,000 -387,800,000   -42,700,000 -371,000,000           64,200,000 -165,000,000   12,500,000 -31,700,000          -53,400,000 12,900,000 -31,500,000   -482,600,000 -189,100,000   -63,900,000 -166,600,000 23,600,000 70,700,000    63,700,000                      -3,600,000    -19,600,000 
          cash and cash equivalents at beginning of period
        416,700,000 721,200,000 721,200,000 721,200,000 743,900,000 743,900,000 743,900,000  584,000,000  687,700,000  645,900,000  490,800,000  382,000,000  141,600,000  229,600,000  149,800,000  269,500,000  1,026,800,000  304,600,000  380,600,000  432,300,000  708,800,000                     
          cash and cash equivalents at end of period
        401,700,000 372,200,000 319,600,000 475,800,000 406,600,000 425,600,000 394,400,000  165,800,000 70,900,000 196,200,000  55,100,000 -42,700,000 316,700,000  534,300,000 -69,200,000 541,700,000  33,100,000 -99,900,000 639,000,000  230,100,000 64,200,000 217,000,000  31,100,000 12,500,000 109,900,000  -29,700,000 -5,200,000 159,800,000  -133,900,000 165,400,000 156,900,000  -53,400,000 12,900,000 238,000,000  -90,900,000 -482,600,000 837,700,000  461,600,000 -63,900,000 138,000,000  70,700,000 -40,000,000 250,300,000  63,700,000 -448,500,000 816,300,000  64,600,000 -184,800,000 563,500,000  -24,400,000 344,700,000 506,000,000  -37,600,000 -157,800,000 468,000,000  134,000,000 11,600,000 518,000,000  92,700,000 -45,900,000 359,100,000  118,500,000 22,000,000 231,200,000 
          gain from disposal of property, plant and equipment
                                                                                           
          net loss from sales of businesses
                                                                                          
          non-cash impairment charges
                                                                                           
          change in operating assets and liabilities:
                                                                                           
          pension plan contributions
                                                                                           
          accrued income taxes
                               700,000 -1,200,000 4,900,000 500,000    2,400,000 2,700,000 -5,500,000 1,200,000 -300,000 1,600,000 7,600,000 -4,200,000 4,300,000 -5,200,000 800,000 -400,000 60,600,000 -12,400,000 4,200,000 -18,400,000 -10,900,000 56,500,000 -28,100,000 -22,000,000 -31,900,000 -17,800,000 15,000,000 -14,600,000 26,800,000 -11,800,000 -20,300,000 29,000,000 45,500,000 -19,500,000 -19,600,000 4,900,000 2,000,000 5,000,000 10,600,000                   
          proceeds from disposal of property, plant and equipment
         10,900,000 100,000  10,600,000 5,900,000 1,000,000 500,000 1,700,000 700,000 900,000 1,600,000 500,000 200,000 800,000 17,900,000 200,000 1,300,000 1,400,000 1,900,000 800,000 300,000 2,900,000 200,000 62,400,000                                                           
          net payments under credit facilities
            -5,100,000  -4,900,000    -16,800,000   1,200,000 -14,600,000                                                                     
          debt issuance costs
               -100,000        -200,000    -1,000,000                              -5,000,000                       
          receipt of convertible note capped call
            76,100,000                                                                               
          dividends paid to noncontrolling interests
                   -18,000,000 -16,000,000                                                              
          shares repurchased for income tax withholding on share-based compensation
                                         -4,800,000     -1,400,000 -3,900,000 100,000 -6,700,000 -100,000 -23,300,000 -900,000 -1,300,000 -200,000 -700,000   -700,000                
          less: cash held for sale
            -19,200,000 -9,600,000                                                                              
          increase in cash and cash equivalents
                   254,900,000    -319,100,000 534,300,000 -69,200,000 -104,200,000 73,700,000 33,100,000 -99,900,000 148,200,000 -20,500,000    228,500,000    16,700,000 -29,700,000 -5,200,000 -69,800,000 41,200,000 -133,900,000 165,400,000 7,100,000     5,300,000    491,100,000       -130,300,000    384,000,000 -11,000,000 64,600,000 -184,800,000 -145,300,000 -117,500,000 -24,400,000 344,700,000 36,100,000 197,300,000 -37,600,000 -157,800,000 -155,300,000 -40,300,000 134,000,000 11,600,000 15,700,000 96,400,000 92,700,000   -9,000,000 118,500,000   
          cash and cash equivalents at beginning of year
                                                                                           
          cash and cash equivalents at end of year
                                                                                           
          net borrowings (payments) under credit facilities
         11,300,000    -4,900,000           4,500,000 2,400,000 -3,300,000 1,100,000                                       3,200,000                         
          net loss from disposal of property, plant and equipment
          200,000                                                                                 
          loss on sales of businesses
          3,700,000 3,700,000                                                                               
          net gains from disposal of property, plant and equipment
           300,000 -6,000,000 -2,100,000   200,000 -300,000  -200,000 -800,000  -100,000 -1,200,000 -1,200,000  -800,000                                                               
          sale to noncontrolling interests
                                                                                          
          transaction costs for sales of businesses, net of proceeds
                                                                                           
          debt extinguishment charge
                                                                                         
          transaction costs from sales of businesses, net of proceeds
                                                                                          
          sale of noncontrolling interests
                    900,000                                                                     
          impairment of goodwill
                                                                                        
          purchase of convertible note capped call
                           -400,000                                                               
          proceeds (transaction costs) from sales of businesses
                                                                                           
          net (payments) borrowings under credit facilities
                                                                                           
          loss on sale of business
                     115,900,000 25,100,000                                                                     
          non-cash joint venture impairment charge
                                                                                           
          gain from sale of business
                                                                                           
          proceeds from sale of business, net of transaction costs
                                                                                           
          net loss
                                       5,200,000     -527,200,000    -141,300,000                                           
          adjustments to reconcile net loss to net cash from operating activities:
                                                                                           
          gain on joint venture deconsolidation
                                   -15,900,000                                                     
          purchases of businesses
                                                                                          
          sale to noncontrolling interest
                                                                                           
          loss from sale of business
                                                                                           
          proceeds from sale of businesses, net of transaction costs
                                                                                           
          net losses from disposal of property, plant and equipment
                              -2,500,000                                                             
          net borrowings (repayments) under credit facilities
                              298,600,000                                -1,400,000             -5,700,000 -800,000   1,100,000 -6,300,000 1,900,000 -5,300,000         
          issuance of common stock
                                                                                           
          gains from disposal of property, plant and equipment
                                -62,300,000                                                           
          purchase of businesses
                                                                                           
          dividends to noncontrolling interests
                                                                                           
          sales to noncontrolling interests
                                    7,000,000 7,400,000                                                     
          loss from sale of businesses
                                                                                           
          asset disposals and other
                                  -100,000 1,900,000 1,400,000 700,000 100,000 -100,000 -100,000 700,000 2,600,000 100,000 300,000 1,000,000 800,000    100,000 500,000 -200,000 300,000 1,800,000 300,000 -200,000 700,000 1,800,000 600,000 900,000 -300,000 400,000 2,100,000 500,000 1,500,000 -200,000 400,000 600,000 -4,900,000 6,800,000 -700,000 -600,000  1,500,000 -500,000 300,000  1,700,000    300,000 1,700,000 -200,000  -2,100,000 -600,000 -600,000 
          payments on long-term debt and capital leases
                                   -1,800,000 -1,800,000 -1,500,000 -1,300,000 -351,100,000 -1,100,000 -500,000 -300,000 -300,000 -1,800,000 -400,000 -200,000 -300,000 -17,000,000 -6,000,000 -300,000 -200,000 -11,300,000 -403,300,000 -100,000 -100,000 -11,100,000 -5,800,000 -100,000 -10,900,000   -116,900,000 -15,900,000 -5,800,000 -5,200,000 -6,000,000 -100,000 -5,200,000 -100,000 -5,900,000 -183,400,000 -5,200,000  -6,000,000 -3,500,000 -5,300,000  -5,500,000 -3,900,000 -5,700,000  -1,200,000 -4,000,000 -1,900,000  -9,000,000 -9,800,000 -12,500,000 
          dividends paid to shareholders
                                                          -19,200,000 -19,200,000 -19,100,000 -19,100,000 -19,100,000 -19,000,000 -19,000,000 -19,100,000 -17,600,000 -17,800,000 -17,700,000 -17,600,000 -17,700,000 -35,300,000                   
          acquisition of noncontrolling interests
                                           -6,100,000 -6,100,000                                             
          purchases of businesses, net of cash acquired
                                                 -400,000                                       
          dividends paid to stockholders
                                            -8,600,000 -8,600,000 -8,600,000  -19,300,000 -19,300,000 -19,300,000  -19,200,000 -19,300,000 -19,300,000  -19,300,000                                   
          adjustments to reconcile net income to net cash fromoperating activities:
                                                                                           
          exercises of stock options and other
                                                      400,000 900,000 500,000 600,000 200,000                             
          gain on sale of business
                                                                                           
          issuances of long-term debt
                                                               500,000,000                        
          taxes on share-based compensation
                                                       2,600,000  4,200,000 400,000 600,000 7,200,000 1,000,000 1,100,000 1,500,000 -1,900,000 -1,100,000 -6,200,000 1,100,000 -400,000       -24,600,000             
          changes in operating asset and liabilities:
                                                                                           
          non-cash restructuring costs
                                                                                           
          net repayments under credit facilities
                                                                         2,800,000 -400,000    -300,000             
          purchase of business, net of cash acquired
                                                      -71,100,000                                     
          purchases of businesses and investments in ventures
                                                                                           
          purchase of subsidiary shares from noncontrolling interest
                                                            -100,000                           
          purchases of businesses and investments in ventures, net of cash acquired
                                                                                          
          exercises of stock options
                                                               200,000 300,000 700,000 400,000 300,000 300,000 800,000 300,000   -100,000 1,100,000 100,000 400,000 1,300,000 3,700,000 4,900,000 900,000 10,400,000 16,900,000 6,200,000 13,600,000 1,800,000 4,500,000 
          contributions from noncontrolling interests
                                                                                           
          shares repurchased for income tax witholding on share-based compensation
                                                                                           
          deferred income taxes
                                                                         146,800,000 -38,500,000 64,500,000 37,600,000 1,600,000 25,300,000 53,500,000 -7,200,000 -5,000,000 14,200,000 4,700,000 13,700,000 -8,200,000 -2,000,000 -98,500,000 2,300,000 4,600,000 -400,000 
          tax benefit on share-based compensation
                                                                         100,000 300,000 -2,600,000 200,000               
          cash and cash equivalents at beginning of the year
                                                                         469,900,000  623,300,000  502,300,000  362,700,000  250,800,000 
          accrued income taxes, net of tax benefits on share-based compensation
                                                                          -5,900,000  14,700,000 -56,900,000 53,800,000  25,900,000 -20,500,000 64,000,000  11,700,000 -22,600,000 31,100,000     
          net decrease in debt
                                                                          -5,600,000  -6,800,000 200,000 -5,600,000  -11,800,000 -2,000,000 -11,000,000  -3,800,000 -800,000 -1,600,000  -900,000 -7,700,000 -5,800,000 
          dividends paid
                                                                          -17,600,000 -17,300,000 -17,700,000 -18,200,000 -18,200,000 -18,300,000 -13,300,000 -13,300,000 -13,200,000 -13,100,000 -10,000,000 -10,100,000 -9,900,000 -9,700,000 -5,900,000 -5,700,000 -5,800,000 
          accrued liabilities
                                                                                           
          accrued income taxes, net of tax benefit on share-based compensation
                                                                                           
          disposals of property, plant and equipment
                                                                                           
          purchase of businesses and investments in ventures, net of cash acquired
                                                                                           
          proceeds from sales of businesses and investments and other
                                                                                           
          payments of long-term debt and capital leases
                                                                                           
          net repayments
                                                                                           
          income tax withholding on share-based compensation
                                                                                           
          cumulative effect of change in accounting principle
                                                                                           
          borrowings of long-term debt
                                                                                           
          acquisition of business
                                                                                           
          tax benefits on share-based compensation
                                                                                2,200,000 3,200,000 19,200,000  13,500,000 8,200,000 8,300,000     
          non-cash restructuring costs and curtailment (gain)
                                                                                           
          pension assets and liabilities
                                                                                   -87,100,000 14,700,000 14,600,000 14,500,000 -85,700,000 14,400,000 14,300,000 14,700,000 
          postretirement benefits
                                                                                   -1,900,000 -1,400,000 -700,000 -2,300,000 -5,200,000 -2,200,000 -1,500,000 -2,200,000 
          proceeds from interest rate swap settlement
                                                                                           
          purchases of businesses and investment in ventures
                                                                                        -600,000   
          net borrowings
                                                                                           
          non-cash curtailment gain and restructuring charges
                                                                                           
          capital losses on sale of property, plant and equipment
                                                                                           
          income tax refunds receivable
                                                                                           
          net borrowings under foreign credit facilities
                                                                                           
          gains on sales of investments and businesses
                                                                                           
          borrowings on long-term debt and capital leases
                                                                                          5,200,000