7Baggers

The Interpublic Group of Companies, Inc
(NYSE:IPG) 

IPG stock logo

The Interpublic Group of Companies, Inc. provides advertising and marketing services worldwide. It operates in two segments, Integrated Agency Networks (IAN) and IPG DXTRA. The company offers consumer advertising, digital marketing, communications planning and media buying, public relations, and spe...

Founded: 1902
Full Time Employees: 54,300
Sector: Communication Services
Industry: Advertising Agencies

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At a glance:
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Income Statements:
Quarterly
Annual
    Unit: USD2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 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 2004-12-31 2004-09-30 
                                                                                         
      revenue:
                                                                                         
      revenue before billable expenses
    2,135,600,000 2,172,700,000 1,996,300,000 2,434,900,000 2,242,700,000 2,327,100,000 2,182,900,000 2,586,200,000 2,309,000,000 2,328,500,000 2,176,900,000 2,550,500,000 2,296,200,000                                                                         
      billable expenses
    358,400,000 364,100,000 326,300,000 422,100,000 386,100,000 382,900,000 313,000,000 437,100,000 369,500,000 338,000,000 344,100,000 435,400,000 341,500,000 360,200,000 341,300,000 383,200,000 280,300,000 240,000,000 229,300,000 265,600,000 170,900,000 172,300,000 387,700,000 468,800,000 376,700,000 394,300,000 356,400,000 442,300,000 401,800,000 443,600,000 395,100,000                                                       
      total revenue
    2,494,000,000 2,536,800,000 2,322,600,000 2,857,000,000 2,628,800,000 2,710,000,000 2,495,900,000 3,023,300,000 2,678,500,000 2,666,500,000 2,521,000,000 2,985,900,000 2,637,700,000 2,735,700,000 2,568,500,000 2,932,100,000 2,542,000,000 2,509,600,000 2,257,000,000 2,550,000,000 2,125,500,000 2,025,700,000 2,359,800,000 2,901,800,000 2,438,100,000 2,520,200,000 2,361,200,000 2,856,000,000 2,297,500,000 2,391,800,000 2,169,100,000                                                       
      yoy
    -5.13% -6.39% -6.94% -5.50% -1.86% 1.63% -1.00% 1.25% 1.55% -2.53% -1.85% 1.83% 3.76% 9.01% 13.80% 14.98% 19.60% 23.89% -4.36% -12.12% -12.82% -19.62% -0.06% 1.60% 6.12% 5.37% 8.86%                                                           
      qoq
    -1.69% 9.22% -18.70% 8.68% -3.00% 8.58% -17.44% 12.87% 0.45% 5.77% -15.57% 13.20% -3.58% 6.51% -12.40% 15.35% 1.29% 11.19% -11.49% 19.97% 4.93% -14.16% -18.68% 19.02% -3.26% 6.73% -17.32% 24.31% -3.94% 10.27%                                                        
      operating expenses:
                                                                                         
      salaries and related expenses
    1,370,300,000 1,378,200,000 1,414,400,000 1,430,400,000 1,464,000,000 1,557,600,000 1,572,800,000 1,536,900,000 1,531,100,000 1,598,600,000 1,577,300,000 1,556,900,000 1,546,800,000 1,590,200,000 1,564,400,000 1,586,200,000 1,511,200,000 1,484,900,000 1,393,100,000 1,346,200,000 1,269,900,000 1,306,100,000 1,422,800,000 1,432,100,000 1,334,400,000 1,381,200,000 1,421,100,000 1,423,700,000 1,251,400,000 1,292,900,000 1,330,300,000 1,325,800,000 1,227,600,000 1,239,300,000 1,275,400,000 1,309,400,000 1,228,800,000 1,229,000,000 1,270,900,000 1,235,100,000 1,202,200,000 1,205,200,000 1,215,200,000 1,266,400,000 1,195,200,000 1,170,200,000 1,188,600,000 1,199,600,000 1,093,600,000 1,120,200,000 1,132,100,000 1,133,800,000 1,064,300,000 1,088,900,000 1,104,900,000 1,138,300,000 1,088,000,000 1,095,700,000 1,080,100,000 1,139,600,000 1,007,100,000 991,000,000 979,300,000 1,052,800,000 943,500,000 968,400,000 996,500,000 1,081,100,000 1,093,500,000 1,103,200,000 1,064,800,000 1,106,000,000 1,034,700,000 1,009,700,000 988,800,000 1,087,600,000 960,700,000 951,400,000 950,700,000 1,106,100,000 963,800,000 1,929,200,000 973,800,000 2,808,700,000 924,800,000 
      office and other direct expenses
    304,500,000 325,200,000 319,200,000 335,500,000 327,100,000 358,400,000 322,100,000 352,900,000 318,800,000 340,500,000 330,300,000 345,300,000 327,900,000 349,800,000 323,400,000 384,800,000 300,900,000 301,000,000 292,900,000 364,800,000 307,900,000 317,000,000 378,200,000 419,700,000 367,900,000 387,300,000 389,200,000 381,000,000 317,000,000 333,300,000 323,800,000                                                       
      cost of services
    2,033,200,000 2,067,500,000 2,059,900,000 2,188,000,000 2,177,200,000 2,298,900,000 2,207,900,000 2,326,900,000 2,219,400,000 2,277,100,000 2,251,700,000 2,337,600,000 2,216,200,000 2,300,200,000 2,229,100,000 2,354,200,000 2,092,400,000 2,025,900,000 1,915,300,000 1,976,600,000 1,748,700,000 1,795,400,000 2,188,700,000 2,320,600,000 2,079,000,000 2,162,800,000 2,166,700,000 2,247,000,000 1,970,200,000 2,069,800,000 2,049,200,000                                                       
      selling, general and administrative expenses
    50,300,000 46,400,000 40,400,000 44,100,000 20,800,000 27,600,000 38,000,000 23,500,000 16,900,000 13,900,000 12,900,000 29,900,000 18,500,000 19,400,000 19,300,000 32,500,000 32,200,000 29,400,000 28,200,000 22,400,000 9,900,000 4,100,000 22,400,000 24,500,000 9,800,000 18,100,000 41,400,000 81,000,000 21,600,000 28,800,000 35,100,000                                                       
      depreciation and amortization
    62,000,000 61,200,000 61,000,000 63,400,000 65,300,000 65,000,000 65,200,000 65,300,000 66,000,000 66,500,000 66,500,000 72,100,000 67,000,000 67,100,000 67,800,000 75,100,000 69,400,000 70,100,000 69,200,000 73,700,000 71,000,000 73,100,000 72,800,000 65,400,000 69,000,000 73,000,000 71,100,000 68,900,000 44,000,000 44,000,000 46,000,000                                                       
      impairment of goodwill
        232,100,000                                                                                 
      restructuring charges
    129,500,000 118,000,000 203,300,000 -6,400,000 500,000 300,000 600,000 800,000 -600,000 -1,700,000 1,600,000 101,700,000 -5,800,000 -100,000 6,600,000 13,000,000 -3,500,000 -200,000 1,300,000 253,900,000 47,300,000 112,600,000    2,100,000 31,800,000                                                     -2,425,000 -900,000 -8,800,000 -6,900,000 61,200,000 1,000,000 
      total operating expenses
    2,275,000,000 2,293,100,000 2,364,600,000 2,289,100,000 2,495,900,000 2,391,800,000 2,311,700,000 2,416,500,000 2,301,700,000 2,355,800,000 2,332,700,000 2,541,300,000 2,295,900,000 2,386,600,000 2,322,800,000 2,474,800,000 2,190,500,000 2,125,200,000 2,014,000,000 2,326,600,000 1,876,900,000 1,985,200,000 2,283,900,000 2,410,500,000 2,157,800,000 2,256,000,000 2,311,000,000 2,396,900,000 2,035,800,000 2,142,600,000 2,130,300,000 1,822,700,000 1,683,500,000 1,678,400,000 1,724,200,000 1,779,400,000 1,715,000,000 1,693,100,000 1,721,100,000 1,739,800,000 1,673,600,000 1,660,300,000 1,668,200,000 1,774,100,000 1,669,800,000 1,655,600,000 1,649,200,000 1,798,300,000 1,558,900,000 1,581,400,000 1,585,400,000 1,653,400,000 1,539,000,000 1,539,300,000 1,546,200,000 1,687,300,000 1,553,300,000 1,566,700,000 1,520,100,000 1,681,300,000 1,460,600,000 1,440,600,000 1,400,700,000 1,533,200,000 1,368,400,000 1,377,500,000 1,407,200,000 1,571,200,000 1,623,700,000 1,635,100,000 1,543,000,000 1,710,700,000 1,508,800,000 1,507,100,000 1,483,300,000 1,709,300,000 1,432,700,000 1,456,000,000    2,986,100,000 1,494,700,000 4,552,300,000 1,929,000,000 
      operating income
    219,000,000 243,700,000 -42,000,000 567,900,000 132,900,000 318,200,000 184,200,000 606,800,000 376,800,000 310,700,000 188,300,000 444,600,000 341,800,000 349,100,000 245,700,000 457,300,000 351,500,000 384,400,000 243,000,000 223,400,000 248,600,000 40,500,000 75,900,000 491,300,000 280,300,000 264,200,000 50,200,000 459,100,000 261,700,000 249,200,000 38,800,000 518,300,000 219,100,000 206,500,000 29,700,000 485,100,000 207,200,000 224,800,000 20,900,000 456,400,000 191,900,000 215,800,000 7,800,000 433,000,000 171,300,000 195,800,000 -11,700,000 324,400,000 141,500,000 174,800,000 -42,400,000 409,900,000 131,400,000 176,400,000 -39,400,000 385,300,000 173,200,000 174,000,000 -45,300,000 330,700,000 100,200,000 177,200,000 -59,400,000 268,000,000 58,300,000 96,900,000 -81,900,000 330,600,000 116,300,000 200,600,000 -57,800,000 271,800,000 51,100,000 145,600,000 -124,200,000 167,800,000 21,100,000 76,900,000 -159,800,000 32,200,000 -96,800,000 -39,600,000 -164,400,000   
      yoy
    64.79% -23.41% -122.80% -6.41% -64.73% 2.41% -2.18% 36.48% 10.24% -11.00% -23.36% -2.78% -2.76% -9.18% 1.11% 104.70% 41.39% 849.14% 220.16% -54.53% -11.31% -84.67% 51.20% 7.01% 7.11% 6.02% 29.38% -11.42% 19.44% 20.68% 30.64% 6.84% 5.74% -8.14% 42.11% 6.29% 7.97% 4.17% 167.95% 5.40% 12.03% 10.21% -166.67% 33.48% 21.06% 12.01% -72.41% -20.86% 7.69% -0.91% 7.61% 6.38% -24.13% 1.38% -13.02% 16.51% 72.85% -1.81% -23.74% 23.40% 71.87% 82.87% -27.47% -18.94% -49.87% -51.69% 41.70% 21.63% 127.59% 37.77% -53.46% 61.98% 142.18% 89.34% -22.28% 421.12% -121.80% -294.19% -2.80%       
      qoq
    -10.14% -680.24% -107.40% 327.31% -58.23% 72.75% -69.64% 61.04% 21.27% 65.00% -57.65% 30.08% -2.09% 42.08% -46.27% 30.10% -8.56% 58.19% 8.77% -10.14% 513.83% -46.64% -84.55% 75.28% 6.09% 426.29% -89.07% 75.43% 5.02% 542.27% -92.51% 136.56% 6.10% 595.29% -93.88% 134.12% -7.83% 975.60% -95.42% 137.83% -11.08% 2666.67% -98.20% 152.77% -12.51% -1773.50% -103.61% 129.26% -19.05% -512.26% -110.34% 211.95% -25.51% -547.72% -110.23% 122.46% -0.46% -484.11% -113.70% 230.04% -43.45% -398.32% -122.16% 359.69% -39.83% -218.32% -124.77% 184.26% -42.02% -447.06% -121.27% 431.90% -64.90% -217.23% -174.02% 695.26% -72.56% -148.12% -596.27% -133.26% 144.44% -75.91%    
      operating margin %
    8.78% 9.61% -1.81% 19.88% 5.06% 11.74% 7.38% 20.07% 14.07% 11.65% 7.47% 14.89% 12.96% 12.76% 9.57% 15.60% 13.83% 15.32% 10.77% 8.76% 11.70% 2.00% 3.22% 16.93% 11.50% 10.48% 2.13% 16.07% 11.39% 10.42% 1.79% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% -Infinity% -Infinity% -Infinity% NaN% NaN% 
      expenses and other income:
                                                                                         
      interest expense
    -48,900,000 -50,500,000 -50,100,000 -54,300,000 -54,900,000 -57,900,000 -62,800,000 -61,400,000 -58,700,000 -63,200,000 -55,800,000 -49,400,000 -44,900,000 -41,000,000 -39,400,000 -38,000,000 -42,900,000 -42,600,000 -49,600,000 -46,800,000 -50,800,000 -49,800,000 -44,800,000 -48,200,000 -49,700,000 -51,600,000 -49,800,000 -49,400,000 -27,600,000 -26,100,000 -19,900,000 -23,200,000 -21,000,000 -25,700,000 -20,900,000 -21,800,000 -21,700,000 -24,500,000 -22,600,000 -23,300,000 -21,300,000 -20,300,000 -20,900,000 -21,400,000 -20,700,000 -22,600,000 -20,200,000 -24,700,000 -23,700,000 -37,500,000 -36,800,000 -36,600,000 -31,600,000 -32,700,000 -32,600,000 -38,900,000 -32,900,000 -33,100,000 -31,900,000 -37,400,000 -34,700,000 -35,000,000 -32,600,000 -37,900,000 -37,800,000 -45,100,000 -34,800,000 -48,000,000 -53,200,000 -53,000,000 -57,700,000 -64,700,000 -60,100,000 -56,900,000 -55,000,000 -63,600,000 -57,000,000 -52,000,000 -46,100,000 -44,800,000 -47,200,000 -89,900,000 -47,200,000   
      interest income
    24,300,000 26,200,000 34,600,000 32,200,000 34,200,000 36,600,000 48,700,000 43,500,000 35,100,000 35,500,000 40,200,000 25,400,000 17,000,000 11,200,000 9,800,000 7,800,000 7,400,000 7,600,000 6,900,000 6,800,000 6,100,000 5,900,000 10,700,000 9,500,000 9,500,000 7,700,000 7,800,000 7,800,000 5,300,000 4,700,000 4,000,000 5,400,000 4,100,000 4,700,000 5,200,000 4,000,000 4,700,000 5,600,000 5,800,000 5,000,000 5,600,000 5,000,000 7,200,000 7,100,000 7,500,000 6,600,000 6,200,000 6,700,000 5,800,000 5,800,000 6,400,000 8,100,000 6,700,000 6,700,000 8,000,000 10,100,000 9,700,000 9,700,000 8,300,000 9,300,000 6,800,000 6,100,000 6,500,000 7,000,000 7,600,000 8,100,000 12,300,000 15,600,000 23,300,000 23,000,000 28,700,000 32,800,000 30,200,000 28,100,000 28,500,000 35,900,000 25,100,000 26,400,000 25,900,000 26,800,000 21,800,000 31,400,000 14,900,000 39,600,000 11,100,000 
      other expense
    -5,700,000 -1,400,000 -36,900,000 -3,350,000 -2,700,000 -1,200,000 -9,500,000   -4,400,000 -6,700,000    -6,200,000    -83,900,000 -9,800,000 -11,300,000 -21,500,000 -21,800,000                                                               
      total (expenses) and other income
    -30,300,000 -25,700,000 -52,400,000 -84,600,000 -23,400,000 -22,500,000 -23,600,000 17,100,000 -37,300,000 -32,100,000 -22,300,000 -31,800,000 -10,400,000 -34,300,000 -35,800,000 -24,000,000 -33,200,000 -30,300,000 -126,600,000 -49,800,000 -56,000,000 -65,400,000 -55,900,000 -63,500,000 -47,600,000 -47,700,000 -48,900,000 -55,200,000 -37,600,000 -37,700,000 -40,300,000 -19,500,000 -26,800,000 -36,400,000 -14,900,000 -44,000,000 -10,900,000 -19,000,000 -33,900,000 -28,600,000 -52,900,000 -14,800,000 -13,400,000 -14,400,000 -13,800,000 -27,200,000 -12,300,000 -10,300,000 -64,500,000 -26,900,000 -28,600,000 66,900,000 -23,200,000 -21,300,000 -25,900,000 -14,900,000 113,900,000 -18,100,000 -29,700,000 -10,500,000 -31,000,000 -31,000,000 -25,600,000 -1,800,000 -29,200,000 -60,300,000 -17,600,000 -33,200,000 -30,900,000 -23,700,000 -30,400,000 -25,100,000 -34,700,000 -20,800,000 -28,000,000 -80,800,000 -9,500,000 -1,300,000        
      income before income taxes
    188,700,000 218,000,000 -94,400,000 483,300,000 109,500,000 295,700,000 160,600,000 623,900,000 339,500,000 278,600,000 166,000,000 412,800,000 331,400,000 314,800,000 209,900,000 433,300,000 318,300,000 354,100,000 116,400,000 173,600,000 192,600,000 -24,900,000 20,000,000 427,800,000 232,700,000 216,500,000 1,300,000 403,900,000 224,100,000 211,500,000 -1,500,000 498,800,000 192,300,000 170,100,000 14,800,000 441,100,000 196,300,000 205,800,000 -13,000,000 427,800,000 139,000,000 201,000,000 -5,600,000 418,600,000 157,500,000 168,600,000 -24,000,000 314,100,000 77,000,000 147,900,000 -71,000,000 476,800,000 108,200,000 155,100,000 -65,300,000 370,400,000 287,100,000 155,900,000 -75,000,000 320,200,000 69,200,000 146,200,000 -85,000,000 266,200,000 29,100,000 36,600,000 -99,500,000 43,525,000 85,400,000 176,900,000 -88,200,000   124,800,000            
      provision for income taxes
    58,700,000 54,600,000 -9,200,000 125,700,000 85,300,000 75,600,000 47,300,000 155,300,000 91,500,000 10,600,000 33,800,000 109,200,000 76,400,000 83,700,000 49,100,000   86,700,000 23,800,000   19,000,000 17,200,000                                                               
      income of consolidated companies
    130,000,000 163,400,000 -85,200,000 357,600,000 24,200,000 220,100,000 113,300,000 468,600,000 248,000,000 268,000,000 132,200,000 303,600,000 255,000,000 231,100,000 160,800,000 365,900,000 244,400,000 267,400,000 92,600,000 115,500,000 278,900,000 -43,900,000 2,800,000 341,700,000 168,100,000 172,900,000  341,700,000 163,400,000 147,900,000 -14,200,000 332,700,000 149,800,000 94,700,000 16,900,000 335,000,000 132,500,000 162,100,000 2,600,000 282,400,000 77,900,000 123,300,000  330,700,000 92,500,000 103,300,000  210,900,000 48,600,000 85,900,000  336,300,000 66,300,000 105,000,000  276,700,000 216,700,000 108,300,000  221,300,000 44,800,000 82,900,000  158,100,000 25,400,000 32,900,000  20,800,000 49,900,000 97,800,000    136,200,000    73,800,000        
      equity in net loss of unconsolidated affiliates
    -2,900,000   -50,000               -200,000    -200,000                                                               
      net income
    127,100,000 163,600,000 -85,300,000 358,300,000 24,200,000 219,600,000 113,600,000 471,600,000 245,700,000 268,700,000 132,100,000 305,900,000 257,500,000 231,800,000 160,900,000 368,000,000 244,600,000 267,800,000 92,400,000 117,000,000 278,500,000 -43,900,000 2,600,000 342,200,000 168,400,000 172,800,000 -9,500,000 342,500,000 163,500,000 147,800,000 -16,100,000 333,500,000 148,800,000 94,600,000 18,100,000 336,900,000 132,700,000 160,200,000 2,700,000 282,900,000 78,000,000 123,800,000 -4,200,000 331,300,000 92,800,000 103,700,000 -22,400,000 212,100,000 49,200,000 86,100,000 -58,500,000 337,100,000 67,700,000 105,500,000 -45,700,000 278,300,000 217,500,000 108,900,000 -53,200,000 222,800,000 45,600,000 83,100,000 -70,300,000 159,700,000 25,900,000 31,400,000 -73,600,000 217,000,000 45,700,000 95,100,000 -62,800,000 178,400,000 -21,900,000 137,000,000 -125,900,000 63,800,000 5,800,000 68,900,000 -170,200,000 -37,000,000 -96,500,000  -143,800,000   
      yoy
    425.21% -25.50% -175.09% -24.02% -90.15% -18.27% -14.00% 54.17% -4.58% 15.92% -17.90% -16.87% 5.27% -13.44% 74.13% 214.53% -12.17% -710.02% 3453.85% -65.81% 65.38% -125.41% -127.37% -0.09% 3.00% 16.91% -40.99% 2.70% 9.88% 56.24% -188.95% -1.01% 12.13% -40.95% 570.37% 19.09% 70.13% 29.40% -164.29% -14.61% -15.95% 19.38% -81.25% 56.20% 88.62% 20.44% -61.71% -37.08% -27.33% -18.39% 28.01% 21.13% -68.87% -3.12% -14.10% 24.91% 376.97% 31.05% -24.32% 39.51% 76.06% 164.65% -4.48% -26.41% -43.33% -66.98% 17.20% 21.64% -308.68% -30.58% -50.12% 179.62% -477.59% 98.84% -26.03% -272.43% -106.01%  18.36%       
      qoq
    -22.31% -291.79% -123.81% 1380.58% -88.98% 93.31% -75.91% 91.94% -8.56% 103.41% -56.82% 18.80% 11.09% 44.06% -56.28% 50.45% -8.66% 189.83% -21.03% -57.99% -734.40% -1788.46% -99.24% 103.21% -2.55% -1918.95% -102.77% 109.48% 10.62% -1018.01% -104.83% 124.13% 57.29% 422.65% -94.63% 153.88% -17.17% 5833.33% -99.05% 262.69% -37.00% -3047.62% -101.27% 257.00% -10.51% -562.95% -110.56% 331.10% -42.86% -247.18% -117.35% 397.93% -35.83% -330.85% -116.42% 27.95% 99.72% -304.70% -123.88% 388.60% -45.13% -218.21% -144.02% 516.60% -17.52% -142.66% -133.92% 374.84% -51.95% -251.43% -135.20% -914.61% -115.99% -208.82% -297.34% 1000.00% -91.58% -140.48% 360.00% -61.66%      
      net income margin %
    5.10% 6.45% -3.67% 12.54% 0.92% 8.10% 4.55% 15.60% 9.17% 10.08% 5.24% 10.24% 9.76% 8.47% 6.26% 12.55% 9.62% 10.67% 4.09% 4.59% 13.10% -2.17% 0.11% 11.79% 6.91% 6.86% -0.40% 11.99% 7.12% 6.18% -0.74% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% -Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% -Infinity% -Infinity% -Infinity% NaN% -Infinity% NaN% NaN% 
      net income attributable to non-controlling interests
    -2,900,000 -1,100,000 -100,000 -13,800,000 -4,100,000 -5,100,000 -3,200,000 -8,400,000 -2,000,000 -3,200,000 -6,100,000 -8,700,000 -5,700,000 -2,200,000 -1,500,000                                                                       
      net income available to ipg common stockholders
    124,200,000 162,500,000 -85,400,000 344,500,000 20,100,000 214,500,000 110,400,000 463,200,000 243,700,000 265,500,000 126,000,000 297,200,000 251,800,000 229,600,000 159,400,000 357,900,000 239,900,000 263,300,000 91,700,000 112,300,000 279,700,000 -45,600,000 4,700,000 328,900,000 165,600,000 169,500,000 -8,000,000 326,200,000 161,000,000 145,800,000 -14,100,000 316,600,000 146,200,000 94,700,000 21,500,000 317,600,000 128,600,000 156,900,000 5,400,000 260,300,000 74,900,000 121,200,000 -1,800,000 308,900,000 89,700,000 99,400,000 -20,900,000 193,100,000 45,400,000 79,900,000 -59,200,000 313,300,000 68,700,000 99,000,000 -45,900,000 259,000,000 208,100,000 101,700,000 -48,100,000 195,000,000 42,400,000 105,300,000 -71,500,000 129,400,000 17,200,000 20,900,000 -73,900,000                   
      earnings per share available to ipg common stockholders:
                                                                                         
      basic
    0.34 0.44 -0.23 0.92 0.05 0.57 0.29 1.21 0.64 0.69 0.33 0.77 0.64 0.58 0.4 0.91 0.61 0.67 0.23 0.29 0.72 -0.12 0.01 0.85 0.43 0.44  0.85 0.42 0.38 -0.04 0.82 0.38 0.24 0.05 0.8 0.32 0.39 0.01 0.64 0.18 0.3  0.74 0.21 0.24  0.46 0.11 0.19  0.73 0.16 0.23  0.56 0.45 0.21  0.41 0.09 0.22  0.28 0.04 0.04    0.19    0.27    0.11        
      diluted
    0.34 0.44 -0.23 0.92 0.05 0.57 0.29 1.21 0.63 0.68 0.33 0.75 0.64 0.58 0.4 0.9 0.6 0.66 0.23 0.28 0.71 -0.12 0.01 0.84 0.42 0.43  0.84 0.41 0.37 -0.04 0.8 0.37 0.24 0.05 0.78 0.32 0.38 0.01 0.62 0.18 0.29  0.73 0.21 0.23  0.45 0.11 0.18  0.67 0.15 0.22  0.49 0.4 0.19  0.36 0.08 0.15  0.27 0.03 0.04    0.17    0.24    0.11        
      weighted-average number of common shares outstanding:
                                                                                         
      basic
    365 367.9 372.5 375.2 373.9 376.3 378.4 384.1 383.6 385.7 385.8 391.5 390.6 393.1 394.5 393 393.5 393.3 391.5 389.4 389.6 389.4 387.7 386.1 386.7 386.2 384.5 383.3 382.6 383.6 383.4 389.6 389.5 392.3 391.7 397.9 397.7 400.1 400.6 408.1 407.6 410.5  419.2 419.2 421.1  421.1 419.7 425.1  432.5 431.3 437.4  465.5 464.7 473.1  473.6 474.7 473  468.2 470.5 467.1  461.5 462.8 460.5  457.7  457.3    426.6    424.3 423.8 415.3 415.4 
      diluted
    368 370.1 375 377.7 376.8 378.7 380.6 385.9 385.5 387.7 387.4 395.1 394.1 396.8 398.4 398.4 399.8 399 396 393.2 393.9 389.4 391.7 391.2 391.8 391.2 384.5 389 388.4 389.5 383.4 397.3 397.2 400.3 399.3 408 407.9 409.8 409.3 415.7 415.5 417.6  425.4 426.4 428.1  429.6 426.1 448.3  481.4 456.1 477.7  540.6 537.6 546.9  542.1 533.6 544.9  508.1 513.8 507.5  518.3 519.4 516  503.1  541.3    494.3    424.3 423.8 415.3 415.4 
      equity in net income of unconsolidated affiliates
     200,000 -100,000   -500,000 300,000 3,000,000 -2,300,000 700,000 -100,000 2,300,000 2,500,000 700,000 100,000 2,100,000 200,000 400,000  1,500,000 -400,000   500,000 300,000 -100,000 -300,000 800,000 100,000 -100,000 -1,900,000 800,000 -1,000,000 -100,000 1,200,000 1,900,000 200,000 -1,900,000 100,000 500,000 100,000 500,000  600,000 300,000 400,000 -100,000 1,200,000 600,000 200,000 100,000 800,000 1,400,000 500,000 400,000 1,600,000 800,000 600,000 300,000 1,500,000 800,000 200,000 -600,000 1,600,000 500,000 -1,500,000 500,000             8,100,000 2,400,000 2,800,000 500,000 3,600,000 2,200,000 
      other income
           35,000,000 -13,700,000   1,700,000 17,500,000 -4,500,000  -19,225,000 2,300,000 4,700,000      -4,525,000 -7,400,000 -3,800,000 -6,900,000 -13,600,000 -15,300,000 -16,300,000 -24,400,000 -1,700,000 -9,900,000 -15,400,000 800,000 -26,200,000 6,100,000 -100,000 -17,100,000 -10,300,000 -37,200,000 500,000 300,000 -100,000 -600,000 -11,200,000 1,700,000 7,700,000 -46,600,000 4,800,000 1,800,000 95,400,000 1,700,000 4,700,000 -1,300,000 13,900,000 137,100,000 5,300,000 -6,100,000 17,600,000 -3,100,000 -2,100,000 500,000 29,100,000 1,000,000 -23,300,000 4,900,000 -800,000 -1,000,000 6,300,000 -1,400,000 6,800,000 -4,800,000 8,000,000 -1,500,000 -53,100,000 22,400,000 24,600,000 800,000 13,100,000 900,000 19,100,000 14,500,000   
      net revenue
                 2,375,500,000 2,227,200,000 2,548,900,000 2,261,700,000 2,269,600,000 2,027,700,000 2,284,400,000 1,954,600,000 1,853,400,000 1,972,100,000 2,433,000,000 2,061,400,000 2,125,900,000 2,004,800,000 2,413,700,000 1,895,700,000 1,948,200,000 1,774,000,000                                                       
      provision for (benefit of) income taxes
                   46,100,000 73,900,000                                                                     
      net loss attributable to non-controlling interests
                   -2,475,000 -4,700,000                                                                     
      net loss attributable to noncontrolling interests
                     -4,500,000 -700,000 400,000 1,200,000 -1,700,000 2,100,000                                                               
      (benefit of) provision for income taxes
                       -12,525,000 -86,300,000                                                                 
      benefit from income taxes
                           29,675,000 64,600,000 43,600,000 10,500,000 62,200,000 60,700,000 63,600,000  166,100,000 42,500,000 75,400,000  106,100,000 63,800,000 43,700,000  145,400,000 61,100,000 77,700,000  87,900,000 65,000,000 65,300,000  103,200,000 28,400,000 62,000,000  140,500,000 41,900,000 50,100,000  93,700,000 70,400,000 47,600,000                    1,800,000  67,100,000  44,700,000    
      net income attributable to noncontrolling interests
                           -13,300,000 -2,800,000 -3,300,000 1,500,000    2,000,000    3,400,000 -19,300,000 -4,100,000 -3,300,000 2,700,000 -22,600,000 -3,100,000 -2,600,000 2,400,000 -22,400,000 -3,100,000 -4,300,000 1,500,000   -3,300,000 2,200,000    2,700,000    8,000,000    5,700,000    6,600,000                   
      loss of consolidated companies
                              -9,200,000                -4,200,000    -22,300,000    -58,600,000    -46,100,000    -53,500,000    -69,700,000    -74,100,000    -64,500,000    -126,500,000    -170,400,000   -127,300,000 -143,100,000   
      loss per share available to ipg common stockholders:
                                                                                         
      basic
                              -0.02                                                           
      diluted
                              -0.02                                                           
      net (income) loss attributable to noncontrolling interests
                               -625,000 -2,500,000 -2,000,000  225,000 -2,600,000               -500,000 -900,000     -3,600,000  -700,000 -6,500,000 -4,300,000  1,200,000 -300,000 -600,000  300,000 -1,800,000 -3,600,000                    
      dividends declared per common share
                               0.158 0.21 0.21 0.21 0.18 0.18 0.18 0.18 0.15 0.15 0.15 0.15 0.12 0.12 0.12 0.12 0.095 0.095 0.095 0.095 0.075 0.075 0.075 0.075 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06                           
      benefit from (benefit of) income taxes
                                  12,700,000                             18,100,000 24,400,000 63,300,000  -4,500,000 3,700,000 3,700,000  22,725,000 35,500,000 79,100,000  -325,000 35,800,000        -29,900,000     
      revenue
                                   2,341,000,000 1,902,600,000 1,884,900,000 1,753,900,000 2,264,500,000 1,922,200,000 1,917,900,000 1,742,000,000 2,196,200,000 1,865,500,000 1,876,100,000 1,676,000,000 2,207,100,000 1,841,100,000 1,851,400,000 1,637,500,000 2,122,700,000 1,700,400,000 1,756,200,000 1,543,000,000 2,063,300,000 1,670,400,000 1,715,700,000 1,506,800,000 2,072,600,000 1,726,500,000 1,740,700,000 1,474,800,000 2,012,000,000 1,560,800,000 1,617,800,000 1,341,300,000 1,801,200,000 1,426,700,000 1,474,400,000 1,325,300,000 1,901,800,000 1,740,000,000 1,835,700,000 1,485,200,000 1,982,500,000 1,559,900,000 1,652,700,000 1,359,100,000 1,877,100,000 1,453,800,000 1,532,900,000 1,327,000,000 1,885,600,000 1,442,200,000 2,946,500,000 1,330,300,000  1,508,800,000 
      office and general expenses
                                   496,900,000 455,900,000 439,100,000 448,800,000 470,000,000 486,200,000 464,100,000 450,200,000 505,500,000 471,400,000 455,100,000 453,000,000 507,500,000 474,600,000 485,400,000 460,600,000 538,100,000 465,300,000 461,200,000 453,300,000 519,600,000 474,700,000 450,400,000 441,300,000 548,800,000 465,500,000 470,800,000 439,200,000 540,100,000 452,100,000 449,000,000 421,100,000 475,100,000 425,400,000 409,100,000 410,900,000 484,200,000 526,300,000 527,800,000 475,000,000 578,200,000 468,900,000 502,600,000 495,100,000 572,900,000 465,800,000 504,600,000 535,700,000 647,000,000 575,400,000 1,065,700,000 527,800,000 1,730,300,000 519,500,000 
      net income (income) attributable to noncontrolling interests
                                     100,000                  750,000 3,900,000                                 
      benefit of income taxes
                                      -2,100,000    -15,600,000    -1,400,000    -1,700,000    -12,400,000    -19,200,000    -21,500,000    -15,300,000    -25,400,000    -23,700,000    -25,700,000    -8,800,000       
      loss per share available to ipg common stockholders - basic and diluted
                                                  -0.05    -0.14    -0.1                               
      weighted-average number of common shares outstanding - basic and diluted
                                              411.1    422.8    414.2    437.6                               
      net income attributable to ipg
                                               308,900,000 89,700,000 99,400,000 -20,900,000 193,100,000 48,300,000 82,800,000 -56,300,000 316,200,000 71,600,000 101,900,000 -43,000,000 261,900,000 211,000,000 104,600,000 -45,200,000 197,900,000 45,300,000 82,500,000 -64,600,000 136,400,000 24,100,000 27,800,000 -67,000,000                   
      dividends on preferred stock
                                                    -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -6,900,000 -6,900,000 -6,900,000 -6,900,000 -6,900,000 6,900,000 6,900,000 6,900,000 6,900,000 6,900,000 6,900,000 6,900,000 6,900,000 11,900,000 11,900,000 11,900,000 11,900,000 11,300,000 5,000,000 10,000,000 5,000,000 14,800,000 5,000,000 
      restructuring and other reorganization-related charges
                                                             200,000 800,000   600,000 300,000     5,900,000 3,900,000 4,100,000 3,200,000 26,500,000 5,200,000             
      restructuring and other reorganization-related (reversals) charges
                                                           200,000 -200,000       -175,000 -500,000  -200,000       -5,200,000 -600,000           
      benefit from preferred stock repurchased
                                                                 25,700,000                        
      loss per share available to ipg common stockholders – basic and diluted
                                                              -0.1    -0.15                       
      weighted-average number of common shares outstanding – basic and diluted
                                                              476    471.3                       
      restructuring and other reorganization-related charges (reversals)
                                                               575,000 1,400,000                         
      allocation to participating securities
                                                                       1,600,000 100,000 100,000    8,600,000    10,100,000        
      loss per share available to ipg common stockholders — basic and diluted
                                                                      -0.16                   
      weighted-average number of common shares outstanding — basic and diluted
                                                                      464    459.2  458.6  456 428.1   426       
      income applicable to minority interests, net of tax
                                                                       -15,700,000 -4,700,000 -3,200,000  -11,000,000 -3,700,000 -2,400,000  -10,200,000 -3,800,000 -6,200,000        
      equity in net income of unconsolidated affiliates, net of tax
                                                                       1,000,000 500,000 500,000 1,100,000 2,900,000 1,200,000 3,200,000 200,000 4,300,000 1,400,000 1,300,000        
      net income applicable to common stockholders
                                                                       208,500,000 38,700,000 88,100,000 -69,700,000 162,800,000 -28,800,000 121,500,000 -132,800,000 51,900,000 -6,100,000 46,900,000 -182,100,000 -48,300,000 -101,500,000 -139,400,000 -148,800,000  -583,400,000 
      earnings per share of common stock — basic and diluted
                                                                       0.03 0.08                 
      earnings per share of common stock:
                                                                                         
      basic
    0.34 0.44 -0.23 0.92 0.05 0.57 0.29 1.21 0.64 0.69 0.33 0.77 0.64 0.58 0.4 0.91 0.61 0.67 0.23 0.29 0.72 -0.12 0.01 0.85 0.43 0.44  0.85 0.42 0.38 -0.04 0.82 0.38 0.24 0.05 0.8 0.32 0.39 0.01 0.64 0.18 0.3  0.74 0.21 0.24  0.46 0.11 0.19  0.73 0.16 0.23  0.56 0.45 0.21  0.41 0.09 0.22  0.28 0.04 0.04    0.19    0.27    0.11        
      diluted
    0.34 0.44 -0.23 0.92 0.05 0.57 0.29 1.21 0.63 0.68 0.33 0.75 0.64 0.58 0.4 0.9 0.6 0.66 0.23 0.28 0.71 -0.12 0.01 0.84 0.42 0.43  0.84 0.41 0.37 -0.04 0.8 0.37 0.24 0.05 0.78 0.32 0.38 0.01 0.62 0.18 0.29  0.73 0.21 0.23  0.45 0.11 0.18  0.67 0.15 0.22  0.49 0.4 0.19  0.36 0.08 0.15  0.27 0.03 0.04    0.17    0.24    0.11        
      loss applicable to minority interests, net of tax
                                                                          600,000    400,000           
      loss per share of common stock — basic and diluted
                                                                          -0.15    -0.29           
      income from continuing operations before income taxes
                                                                           246,700,000 16,400,000             
      income from continuing operations of consolidated companies
                                                                           186,500,000 -19,400,000   69,700,000 3,200,000   -46,900,000 -94,300,000     
      income from continuing operations
                                                                           178,400,000 -21,900,000   63,800,000 800,000   -46,000,000 -96,500,000     
      income from discontinued operations, net of tax
                                                                                5,000,000         
      continuing operations
                                                                           0.36 -0.06       -0.13 -0.24    -1.42 
      discontinued operations
                                                                                0.01        0.02 
      total
                                                                           0.36 -0.06       -0.11     -1.4 
      (benefit of) benefit from income taxes
                                                                             -11,400,000            
      income before benefit of income taxes
                                                                              -152,200,000    -179,200,000       
      restructuring and other reorganization related charges
                                                                               3,225,000 6,200,000         
      long-lived asset impairment and other charges
                                                                                   97,900,000 700,000     
      income from continuing operations before benefit for income taxes
                                                                               -23,000,000 11,600,000         
      benefit for income taxes
                                                                               350,000 8,400,000      -39,100,000   
      earnings per share of common stock — basic and diluted continuing operations
                                                                               -0.08 -0.03         
      total*
                                                                               -0.078 -0.01    -0.24     
      weighted-average number of common shares outstanding —
                                                                                         
      basic and diluted
                                                                                427.2   424.8 425.3     
      *
                                                                                         
      restructuring (reversals) charges
                                                                                  400,000       
      investment impairments
                                                                                 -300,000  -7,100,000 -1,500,000 -3,600,000    
      income before benefit from income taxes
                                                                                 75,600,000    -82,600,000 -182,200,000   
      operating (income) expenses:
                                                                                         
      total operating incomes
                                                                                  1,486,800,000 1,853,400,000 1,539,000,000     
      total expenses and other income
                                                                                  -19,400,000 -12,000,000 -27,400,000     
      loss per share — basic and diluted
                                                                                  -0.43       
      operating incomes:
                                                                                         
      motorsports contract termination costs
                                                                                       80,000,000 33,600,000 
      debt prepayment penalty
                                                                                    -1,400,000     
      income from continuing operations before benefit from (benefit of) income taxes
                                                                                    -124,200,000     
      income applicable to minority interests
                                                                                   -7,200,000 -4,600,000 -4,900,000 -1,200,000   
      income from discontinued operations
                                                                                        6,500,000 
      loss per share of common stock:
                                                                                         
      basic and diluted
                                                                                         
      weighted-average shares:
                                                                                         
      basic and diluted
                                                                                427.2   424.8 425.3     
      expense and other income:
                                                                                         
      total expense and other income
                                                                                     -43,000,000 -17,800,000   
      net income from operations
                                                                                     -129,400,000    
      loss per share of common stock:
                                                                                         
      basic:
                                                                                     -0.33 -0.35   
      diluted:
                                                                                     -0.33 -0.35   
      weighted-average shares:
                                                                                         
      basic
    365 367.9 372.5 375.2 373.9 376.3 378.4 384.1 383.6 385.7 385.8 391.5 390.6 393.1 394.5 393 393.5 393.3 391.5 389.4 389.6 389.4 387.7 386.1 386.7 386.2 384.5 383.3 382.6 383.6 383.4 389.6 389.5 392.3 391.7 397.9 397.7 400.1 400.6 408.1 407.6 410.5  419.2 419.2 421.1  421.1 419.7 425.1  432.5 431.3 437.4  465.5 464.7 473.1  473.6 474.7 473  468.2 470.5 467.1  461.5 462.8 460.5  457.7  457.3    426.6    424.3 423.8 415.3 415.4 
      diluted
    368 370.1 375 377.7 376.8 378.7 380.6 385.9 385.5 387.7 387.4 395.1 394.1 396.8 398.4 398.4 399.8 399 396 393.2 393.9 389.4 391.7 391.2 391.8 391.2 384.5 389 388.4 389.5 383.4 397.3 397.2 400.3 399.3 408 407.9 409.8 409.3 415.7 415.5 417.6  425.4 426.4 428.1  429.6 426.1 448.3  481.4 456.1 477.7  540.6 537.6 546.9  542.1 533.6 544.9  508.1 513.8 507.5  518.3 519.4 516  503.1  541.3    494.3    424.3 423.8 415.3 415.4 
      cash dividends per common share
                                                                                         
      long-lived asset impairments
                                                                                       112,525,000 450,100,000 
      other income:
                                                                                         
      litigation charges
                                                                                         
      total other income
                                                                                         
      income tax provision
                                                                                       24,650,000 98,600,000 
      earnings per share of common stock:
                                                                                         
      weighted-average common shares:
                                                                                         
      basic
    365 367.9 372.5 375.2 373.9 376.3 378.4 384.1 383.6 385.7 385.8 391.5 390.6 393.1 394.5 393 393.5 393.3 391.5 389.4 389.6 389.4 387.7 386.1 386.7 386.2 384.5 383.3 382.6 383.6 383.4 389.6 389.5 392.3 391.7 397.9 397.7 400.1 400.6 408.1 407.6 410.5  419.2 419.2 421.1  421.1 419.7 425.1  432.5 431.3 437.4  465.5 464.7 473.1  473.6 474.7 473  468.2 470.5 467.1  461.5 462.8 460.5  457.7  457.3    426.6    424.3 423.8 415.3 415.4 
      diluted
    368 370.1 375 377.7 376.8 378.7 380.6 385.9 385.5 387.7 387.4 395.1 394.1 396.8 398.4 398.4 399.8 399 396 393.2 393.9 389.4 391.7 391.2 391.8 391.2 384.5 389 388.4 389.5 383.4 397.3 397.2 400.3 399.3 408 407.9 409.8 409.3 415.7 415.5 417.6  425.4 426.4 428.1  429.6 426.1 448.3  481.4 456.1 477.7  540.6 537.6 546.9  542.1 533.6 544.9  508.1 513.8 507.5  518.3 519.4 516  503.1  541.3    494.3    424.3 423.8 415.3 415.4 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 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 2004-12-31 2004-09-30 
                                                                                           
        assets:
                                                                                           
        cash and cash equivalents
      1,531,200,000 1,564,400,000 1,869,000,000 2,187,100,000 1,532,000,000 1,545,500,000 1,931,200,000 2,386,100,000 1,574,900,000 1,628,100,000 1,678,100,000 2,545,300,000 1,768,300,000 1,983,400,000 2,402,300,000 3,270,000,000 2,490,000,000 2,340,600,000 2,015,300,000 2,509,000,000 1,628,000,000 1,085,400,000 1,554,000,000 1,192,200,000 520,500,000 614,000,000 630,500,000 673,400,000 1,860,200,000 493,200,000 597,300,000 790,900,000 704,900,000 657,600,000 775,000,000 1,097,600,000 891,600,000 672,600,000 673,400,000 1,502,900,000 874,300,000 848,900,000 734,300,000 1,660,600,000 896,000,000 895,100,000 771,000,000 1,636,800,000 999,300,000 1,613,900,000 1,645,700,000 2,574,800,000 1,187,300,000 1,502,000,000 1,573,100,000 2,302,700,000 1,785,000,000 1,809,800,000 1,840,200,000 2,675,700,000 1,927,700,000 1,929,900,000 1,928,800,000 2,495,200,000 1,761,500,000 1,760,500,000 1,642,000,000 2,107,200,000 1,689,800,000 1,831,000,000 1,491,200,000 2,014,900,000 1,430,100,000 1,220,500,000 1,466,900,000 1,955,700,000 1,263,500,000 1,135,600,000 1,207,000,000 2,075,900,000 1,346,700,000 1,582,000,000 1,544,600,000 1,550,400,000 1,438,500,000 
        accounts receivable
      4,946,400,000 4,850,700,000 4,644,100,000 5,649,700,000 4,718,800,000 4,505,900,000 4,329,600,000 5,768,800,000 4,046,900,000 4,170,000,000 3,792,800,000 5,316,000,000 4,121,100,000 4,014,900,000 4,179,900,000 5,177,700,000 4,042,500,000 3,893,600,000 3,440,300,000 4,646,400,000 3,297,400,000 3,146,600,000 3,661,500,000 5,209,200,000 4,047,800,000 4,389,500,000 4,027,500,000 5,126,600,000 4,009,100,000 4,247,700,000 3,942,500,000 4,585,000,000 3,696,100,000 3,762,200,000 3,641,500,000 4,389,700,000 3,714,400,000 3,945,000,000 3,718,900,000 4,361,000,000 3,848,300,000 3,976,700,000 3,781,400,000 4,376,600,000 3,870,900,000 4,272,300,000 4,013,400,000 4,565,400,000 3,830,200,000 4,047,800,000 3,885,700,000 4,496,600,000 3,839,900,000 3,741,300,000 3,732,100,000 4,425,400,000 3,654,400,000 4,160,900,000 3,995,400,000 4,317,600,000 3,805,400,000 3,724,500,000 3,411,500,000 3,756,500,000 3,067,700,000 3,205,400,000 3,159,100,000 3,746,500,000 3,821,200,000 3,899,300,000 3,752,700,000 4,132,700,000 3,679,800,000 3,881,200,000 3,459,700,000 3,934,900,000 3,430,600,000 3,716,700,000 3,581,900,000 4,015,700,000 4,469,200,000  4,664,000,000 4,907,500,000 4,578,700,000 
        accounts receivable, billable to clients
      2,073,600,000 2,103,000,000 2,163,400,000 2,088,400,000 2,211,900,000 2,163,900,000 2,145,000,000 2,229,200,000 2,417,400,000 2,215,900,000 2,153,700,000 2,023,000,000 2,158,000,000 2,233,000,000 2,155,300,000 2,347,200,000 2,150,400,000 2,043,400,000 1,842,700,000 1,820,700,000 1,817,200,000 1,463,700,000 1,914,000,000 1,934,100,000 2,018,700,000 1,977,600,000 2,077,400,000 1,900,600,000 1,995,900,000 1,945,800,000 1,981,100,000                                                       
        prepaid expenses
      587,000,000 702,600,000 670,300,000 552,400,000 474,000,000 527,300,000 524,300,000 415,800,000 420,700,000 456,900,000                                                                            
        assets held for sale
      196,000,000 1,800,000 6,500,000 51,400,000 223,400,000 8,300,000 7,800,000 21,900,000 9,900,000 6,000,000 5,900,000 5,900,000 16,200,000 17,700,000 30,400,000 8,200,000 3,500,000 4,600,000 4,500,000 800,000 20,000,000 26,600,000 17,400,000 22,800,000 22,800,000 26,400,000 19,700,000 5,700,000 5,700,000 19,600,000 12,000,000 5,700,000 8,300,000 19,700,000 108,700,000 203,200,000                                                  
        other current assets
      77,100,000 78,600,000 73,100,000 77,000,000 97,600,000 74,700,000 88,000,000 128,600,000 73,800,000 61,300,000 540,400,000 435,000,000 471,300,000 511,800,000 502,100,000 428,700,000 446,500,000 500,300,000 467,400,000 390,700,000 521,700,000 492,000,000 449,800,000 412,400,000 440,200,000 467,900,000 491,900,000 476,600,000 459,600,000 439,300,000 430,600,000 335,100,000 312,200,000 323,100,000 318,500,000 226,400,000 280,500,000 294,600,000 312,600,000 228,000,000 349,100,000 352,700,000 367,100,000 342,200,000 402,000,000 429,300,000 399,200,000 340,100,000 377,100,000 391,900,000 400,000,000 332,100,000 324,700,000 341,200,000 346,200,000 298,600,000 250,800,000 260,100,000 266,600,000 229,400,000 242,000,000 282,400,000 296,100,000 275,000,000 307,300,000 355,700,000 379,200,000 366,700,000 301,500,000 343,200,000 357,500,000 305,100,000 331,200,000 339,600,000            
        total current assets
      9,411,300,000 9,301,100,000 9,426,400,000 10,606,000,000 9,257,700,000 8,825,600,000 9,025,900,000 10,950,400,000 8,645,400,000 8,641,000,000 8,170,900,000 10,325,200,000 8,534,900,000 8,760,800,000 9,270,000,000 11,231,800,000 9,132,900,000 8,782,500,000 7,770,200,000 9,367,600,000 7,284,300,000 6,214,300,000 7,596,700,000 8,770,700,000 7,050,000,000 7,475,400,000 7,247,000,000 8,182,900,000 8,330,500,000 7,145,600,000 6,963,500,000 7,464,100,000 6,463,800,000 6,486,500,000 6,589,500,000 7,438,000,000 6,733,200,000 6,625,400,000 6,486,000,000 7,693,100,000 6,668,800,000 6,637,400,000 6,387,500,000 7,810,200,000 6,900,900,000 7,401,600,000 6,881,900,000 8,084,000,000 6,762,800,000 7,604,100,000 7,448,200,000 8,738,300,000 6,974,500,000 7,237,300,000 7,112,500,000 8,286,800,000 7,229,300,000 7,593,700,000 7,474,100,000 8,453,500,000 7,315,800,000 7,180,800,000 6,776,700,000 7,637,700,000 6,282,200,000 6,354,400,000 6,269,300,000 7,487,600,000 7,241,600,000 7,424,100,000 6,942,500,000 7,685,800,000 6,870,000,000 6,805,000,000 6,413,600,000 7,208,800,000 6,346,900,000 6,753,200,000 6,557,900,000 7,497,400,000 6,664,700,000 7,360,800,000 7,076,900,000 7,636,700,000 6,737,200,000 
        property and equipment
      502,700,000 529,200,000 540,000,000 566,800,000 597,000,000 608,500,000 624,100,000 636,700,000 627,600,000 629,600,000 630,500,000 637,400,000 632,900,000 641,600,000 654,900,000 675,800,000 666,300,000 658,200,000 667,000,000 690,300,000 709,800,000 717,800,000 752,800,000 778,100,000 758,200,000 767,100,000 767,100,000 790,900,000 602,900,000 602,000,000 634,200,000 650,400,000 637,500,000 635,000,000 616,300,000 622,000,000 581,600,000 569,700,000 565,100,000 567,200,000 519,200,000 526,400,000 523,300,000 548,200,000                                          
        deferred income taxes
      299,200,000 299,700,000 272,500,000 249,200,000 267,500,000 253,400,000 277,500,000 265,000,000 289,200,000 287,000,000 284,200,000 271,700,000 267,200,000 300,600,000 308,800,000 301,400,000 273,700,000 296,600,000 295,600,000 302,000,000 291,400,000 287,700,000 270,700,000 252,100,000 279,100,000 297,800,000 285,600,000 247,000,000 270,200,000 261,000,000 273,100,000 236,000,000 270,900,000 260,900,000 243,600,000 220,300,000 298,700,000 274,200,000 277,000,000 228,400,000 203,900,000 204,200,000 193,000,000 192,900,000 160,600,000 171,000,000 162,200,000 144,000,000 171,300,000 178,400,000 182,400,000 160,500,000 182,700,000 203,200,000 254,800,000 214,500,000 309,200,000 373,000,000 398,900,000 334,200,000 396,500,000 377,200,000 428,100,000 398,300,000 438,900,000 447,300,000 453,100,000 416,800,000 474,600,000 491,800,000 535,000,000 479,900,000 508,700,000 534,500,000 70,900,000 70,900,000 184,300,000 184,300,000 184,300,000 184,300,000 268,800,000 268,800,000 311,000,000 261,000,000 201,400,000 
        goodwill
      4,750,400,000 4,798,100,000 4,756,100,000 4,689,400,000 4,738,700,000 5,059,100,000 5,063,700,000 5,080,900,000 5,055,100,000 5,078,400,000 5,061,000,000 5,050,600,000 4,803,400,000 4,855,200,000 4,899,300,000 4,908,700,000 4,914,400,000 4,944,300,000 4,934,300,000 4,945,500,000 4,875,400,000 4,842,400,000 4,826,500,000 4,894,400,000 4,847,400,000 4,884,100,000 4,885,200,000 4,875,900,000 3,784,700,000 3,788,100,000 3,839,700,000 3,820,400,000 3,799,900,000 3,753,100,000 3,703,500,000 3,674,400,000 3,715,300,000 3,662,200,000 3,681,800,000 3,608,500,000 3,591,300,000 3,626,300,000 3,595,000,000 3,669,200,000 3,686,400,000 3,714,800,000 3,663,100,000 3,629,000,000 3,609,300,000 3,580,700,000 3,588,900,000 3,580,600,000 3,574,300,000 3,461,700,000 3,463,000,000 3,444,300,000 3,405,400,000 3,427,100,000 3,407,700,000 3,368,500,000 3,350,400,000 3,278,300,000 3,306,100,000 3,321,000,000 3,310,200,000 3,298,000,000 3,243,000,000 3,220,900,000 3,325,000,000 3,272,600,000 3,265,400,000 3,231,600,000 3,196,000,000 3,140,600,000 3,077,100,000 3,067,800,000 3,081,900,000 3,063,600,000 3,034,800,000 3,030,900,000 3,166,000,000 3,145,700,000 3,141,100,000 3,141,600,000 2,998,700,000 
        other intangible assets
      615,000,000 646,200,000 665,700,000 659,900,000 682,500,000 701,500,000 722,300,000 743,600,000 763,500,000 785,900,000 798,300,000 818,100,000 774,900,000 799,800,000 825,300,000 847,500,000 869,700,000 892,700,000 913,600,000 933,600,000 949,300,000 968,100,000 990,700,000 1,014,300,000 1,032,300,000 1,052,000,000 1,074,500,000 1,094,700,000                                                      35,100,000 36,600,000 37,600,000 37,600,000 
        operating lease right-of-use assets
      831,100,000 891,800,000 932,000,000 1,037,800,000 1,062,100,000 1,104,600,000 1,131,000,000 1,162,600,000 1,182,100,000 1,240,700,000 1,248,900,000 1,277,500,000 1,391,600,000 1,446,400,000 1,506,500,000 1,544,400,000 1,516,500,000 1,336,300,000 1,361,200,000 1,379,300,000 1,550,200,000 1,435,800,000 1,525,400,000 1,574,400,000 1,573,500,000 1,596,500,000 1,355,500,000                                                           
        other non-current assets
      555,600,000 561,000,000 532,800,000 516,700,000 477,700,000 459,100,000 441,600,000 428,100,000 464,400,000 447,400,000 470,300,000 464,500,000 470,300,000 444,800,000 416,100,000 399,600,000 431,800,000 411,100,000 407,800,000 424,400,000 414,300,000 430,800,000 466,100,000 467,900,000 457,100,000 454,000,000 435,100,000 428,900,000 524,800,000 560,900,000 529,600,000 524,300,000 544,000,000 542,700,000 545,000,000 530,500,000 510,700,000 502,400,000 506,900,000 487,900,000 490,900,000 505,000,000 501,400,000 526,700,000 500,300,000 515,200,000 517,700,000 508,000,000 498,100,000 497,600,000 513,200,000 509,700,000 530,500,000 502,400,000 484,500,000 471,200,000 440,500,000 457,000,000 451,000,000 460,300,000 446,800,000                         
        total assets
      16,965,300,000 17,027,100,000 17,125,500,000 18,325,800,000 17,083,200,000 17,011,800,000 17,286,100,000 19,267,300,000 17,027,300,000 17,110,000,000 16,664,100,000 18,845,000,000 16,875,200,000 17,249,200,000 17,880,900,000 19,909,200,000 17,805,300,000 17,321,700,000 16,349,700,000 18,042,700,000 16,074,700,000 14,896,900,000 16,428,900,000 17,751,900,000 15,997,600,000 16,526,900,000 16,050,000,000 15,620,300,000 13,513,100,000 12,357,600,000 12,240,100,000 12,695,200,000 11,716,100,000 11,678,200,000 11,697,900,000 12,485,200,000 11,839,500,000 11,633,900,000 11,516,800,000 12,585,100,000 11,474,100,000 11,499,300,000 11,200,200,000 12,747,200,000 11,778,400,000 12,339,700,000 11,759,200,000 12,905,000,000 11,532,000,000 12,336,700,000 12,218,300,000 13,493,900,000 11,728,700,000 11,851,600,000 11,765,900,000 12,876,600,000 11,825,900,000 12,301,600,000 12,177,200,000 13,070,800,000 11,950,600,000 11,704,600,000 11,389,400,000 12,263,100,000 10,978,300,000 11,065,100,000 10,929,700,000 12,125,200,000 12,097,300,000 12,207,000,000 11,783,800,000 12,458,100,000 11,665,700,000 11,566,100,000 11,094,600,000 11,864,100,000 10,931,500,000 11,314,100,000 10,992,400,000 11,945,200,000 11,285,500,000 11,929,700,000 11,691,300,000 12,272,300,000 11,202,300,000 
        liabilities:
                                                                                           
        accounts payable
      7,108,500,000 7,185,900,000 7,406,500,000 8,286,100,000 7,061,600,000 6,909,300,000 6,729,700,000 8,355,000,000 6,448,400,000 6,573,200,000 6,460,600,000 8,235,300,000 6,535,600,000 6,861,300,000 7,245,300,000 8,960,000,000 6,844,200,000 6,605,900,000 5,862,000,000 7,269,700,000 5,105,900,000 4,328,100,000 5,559,500,000 7,205,400,000 5,656,000,000 6,022,300,000 5,733,700,000 6,698,100,000 5,515,100,000 5,738,800,000 5,467,100,000 6,907,800,000 5,561,100,000 5,872,000,000 5,672,600,000 6,303,600,000 6,025,900,000 5,857,700,000 5,785,100,000 6,672,000,000 5,753,400,000 5,669,800,000 5,468,500,000 6,558,000,000 5,875,000,000 6,414,800,000 6,048,500,000 6,914,200,000 5,705,600,000 5,891,000,000 5,650,200,000 6,584,800,000 5,846,800,000 6,026,600,000 5,929,100,000 6,647,200,000 5,934,200,000 4,064,700,000 4,010,600,000 4,474,500,000 3,967,800,000 4,004,800,000 3,607,300,000 4,003,900,000 3,283,500,000 3,380,400,000 3,350,700,000 4,022,600,000 3,979,300,000 4,138,400,000 3,978,900,000 4,124,300,000 3,866,600,000 4,010,400,000 3,801,000,000 4,124,100,000 3,560,300,000 3,933,700,000 3,794,400,000 4,245,400,000 5,656,500,000 6,198,900,000 5,813,500,000 6,128,700,000 5,247,300,000 
        accrued liabilities
      615,500,000 580,000,000 561,400,000 661,600,000 503,600,000 488,100,000 527,900,000 705,800,000 632,300,000 562,300,000 538,500,000 787,100,000 669,300,000 623,500,000 590,900,000 918,100,000 760,400,000 679,800,000 608,900,000 832,400,000 644,700,000 599,300,000 539,500,000 742,800,000 634,300,000 626,400,000 663,600,000 806,900,000 571,000,000 551,500,000 528,100,000 674,700,000 550,700,000 513,100,000 572,000,000 794,000,000 631,700,000 588,400,000 620,600,000 760,300,000 688,900,000 603,800,000 618,700,000 796,000,000 638,800,000 594,800,000 587,400,000 718,400,000 553,300,000 548,600,000 596,400,000 728,200,000 650,000,000 593,900,000 676,700,000 827,100,000 624,000,000 2,849,400,000 2,733,600,000 3,112,700,000 2,549,900,000 2,445,000,000 2,265,600,000 2,593,100,000 2,230,800,000 2,204,800,000 2,111,200,000 2,521,600,000 2,623,600,000 2,550,600,000 2,356,100,000 2,691,200,000 2,431,800,000 2,220,800,000 2,127,900,000 2,456,000,000 2,246,900,000 2,233,800,000 2,207,500,000 2,554,300,000 828,000,000 871,600,000 1,004,400,000 1,108,600,000  
        contract liabilities
      595,700,000 654,900,000 598,400,000 509,000,000 574,200,000 609,400,000 707,700,000 684,700,000 688,400,000 690,500,000 692,800,000 680,000,000 659,800,000 664,400,000 760,000,000 688,500,000 622,200,000 678,500,000 689,100,000 657,800,000 611,300,000 557,600,000 571,500,000 585,600,000 562,400,000 585,200,000 575,900,000 533,900,000 514,400,000 510,800,000 507,500,000                                                       
        short-term borrowings
      56,800,000 37,600,000 34,000,000 40,500,000 23,900,000 20,500,000 21,900,000 34,200,000 31,000,000 30,200,000 27,700,000 44,300,000 55,800,000 45,700,000 59,100,000 47,500,000 44,100,000 56,700,000 43,100,000 48,000,000 46,300,000 51,900,000 310,100,000 52,400,000 244,800,000 207,100,000 272,400,000 73,700,000 82,600,000 757,600,000 799,400,000 84,900,000 511,800,000 237,700,000 310,800,000 85,700,000 133,000,000 211,700,000 131,700,000 150,100,000 128,300,000 158,000,000 135,700,000 107,200,000 128,300,000 126,200,000 171,100,000 179,100,000 186,300,000 186,000,000 159,700,000 172,100,000 200,500,000 177,000,000 161,500,000 153,500,000 149,900,000 150,000,000 116,200,000 114,800,000 124,300,000 91,600,000 86,300,000                       
        current portion of long-term debt
      100,000 100,000 100,000 100,000 100,000 100,000 250,200,000 250,100,000 250,000,000 250,300,000 600,000 600,000 600,000 600,000 600,000 700,000 500,400,000 503,100,000 502,800,000 502,500,000 506,600,000 503,000,000 502,500,000 502,000,000 3,300,000 300,000 100,000 100,000 100,000 100,000 2,100,000 2,000,000 301,900,000 301,700,000 324,100,000 323,900,000 24,500,000 24,500,000 2,000,000 1,900,000 2,000,000 2,000,000 2,000,000 2,100,000 2,200,000 2,400,000 353,200,000 353,600,000 2,200,000 594,800,000 1,900,000 216,600,000 217,100,000 217,700,000 219,800,000 404,800,000 408,500,000 448,600,000 452,400,000 38,900,000 231,000,000 194,300,000 215,500,000                       
        current portion of operating leases
      246,000,000 247,900,000 240,400,000 237,200,000 242,100,000 246,600,000 247,900,000 252,600,000 248,700,000 243,500,000 234,600,000 235,900,000 237,800,000 255,000,000 270,300,000 265,800,000 270,100,000 267,900,000 268,800,000 268,500,000 263,600,000 258,500,000 257,400,000 267,200,000 261,600,000 261,000,000 263,000,000                                                           
        liabilities held for sale
      121,300,000   23,500,000 60,100,000 13,300,000 13,000,000 48,500,000 27,400,000 5,300,000 5,200,000  10,300,000 12,200,000 28,000,000 9,400,000 7,600,000 4,800,000 9,800,000 1,600,000 49,500,000 68,100,000 55,400,000 65,000,000 36,000,000 29,000,000 22,400,000 11,200,000 8,500,000 26,500,000 18,300,000 8,800,000 20,800,000 21,700,000 111,200,000 198,800,000                                                  
        total current liabilities
      8,743,900,000 8,706,400,000 8,840,800,000 9,758,000,000 8,465,600,000 8,287,300,000 8,498,300,000 10,330,900,000 8,326,200,000 8,355,300,000 7,960,000,000 9,983,200,000 8,169,200,000 8,462,700,000 8,954,200,000 10,890,000,000 9,049,000,000 8,796,700,000 7,984,500,000 9,580,500,000 7,227,900,000 6,366,500,000 7,795,900,000 9,420,400,000 7,398,400,000 7,731,300,000 7,531,100,000 8,123,900,000 6,691,700,000 7,585,300,000 7,322,500,000 7,678,200,000 6,946,300,000 6,946,200,000 6,990,700,000 7,706,000,000 6,815,100,000 6,682,300,000 6,539,400,000 7,584,300,000 6,572,600,000 6,433,600,000 6,224,900,000 7,463,300,000 6,644,300,000 7,138,200,000 7,160,200,000 8,165,300,000 6,447,400,000 7,220,400,000 6,408,200,000 7,701,700,000 6,914,400,000 7,015,200,000 6,987,100,000 8,032,600,000 7,116,600,000 7,512,700,000 7,312,800,000 7,740,900,000 6,873,000,000 6,735,700,000 6,174,700,000 6,905,600,000 5,602,500,000 5,722,500,000 5,789,100,000 6,877,000,000 6,684,800,000 6,780,800,000 6,438,300,000 7,120,600,000 6,773,800,000 6,721,500,000 6,393,100,000 6,663,000,000 5,870,900,000 6,223,100,000 6,051,200,000 6,856,500,000 6,551,200,000 7,403,100,000 7,155,100,000 7,563,200,000 6,171,200,000 
        long-term debt
      2,923,000,000 2,922,100,000 2,921,300,000 2,920,500,000 2,919,700,000 2,918,800,000 2,918,400,000 2,917,500,000 2,916,200,000 2,915,400,000 2,871,500,000 2,870,700,000 2,902,500,000 2,906,100,000 2,908,100,000 2,908,600,000 2,908,300,000 2,907,900,000 2,906,900,000 2,915,800,000 3,411,300,000 3,411,700,000 3,410,900,000 2,771,900,000 3,367,100,000 3,563,800,000 3,663,700,000 3,660,200,000 3,261,400,000 1,282,700,000 1,288,200,000 1,285,600,000 1,285,000,000 1,283,100,000 1,281,900,000 1,280,700,000 1,583,300,000 1,583,600,000 1,609,900,000 1,610,300,000 1,621,300,000 1,622,800,000 1,620,600,000 1,623,500,000 1,626,800,000 1,629,900,000 1,130,700,000 1,129,800,000 1,481,000,000 1,478,600,000 2,071,600,000 2,060,800,000 1,263,100,000 1,238,700,000 1,239,700,000 1,210,900,000 1,166,200,000 1,167,800,000 1,165,900,000 1,583,300,000 1,588,900,000 1,628,000,000 1,634,500,000 1,638,000,000 1,866,900,000 1,901,100,000 1,781,900,000 1,786,900,000 2,043,100,000 2,045,800,000 2,050,300,000 2,044,100,000 1,841,200,000 1,843,000,000 1,846,100,000 2,248,600,000 2,183,800,000 2,183,700,000 2,183,100,000 2,183,000,000 2,184,000,000 1,933,500,000 1,923,900,000 1,936,000,000 1,044,400,000 
        non-current operating leases
      919,000,000 977,000,000 1,010,000,000 1,056,300,000 1,096,700,000 1,145,600,000 1,181,400,000 1,216,800,000 1,247,000,000 1,316,900,000 1,341,900,000 1,380,100,000 1,409,600,000 1,468,700,000 1,528,900,000 1,576,000,000 1,536,100,000 1,379,500,000 1,414,200,000 1,441,000,000 1,471,300,000 1,347,700,000 1,386,700,000 1,429,600,000 1,434,400,000 1,463,200,000 1,223,600,000                                                           
        deferred compensation
      186,100,000 187,100,000 180,700,000 202,300,000 198,900,000 194,200,000 193,700,000 223,600,000 216,800,000 215,600,000 212,600,000 294,100,000 293,200,000 288,200,000 288,000,000 329,100,000 378,900,000 382,600,000 377,000,000 413,200,000 388,200,000 375,500,000 372,800,000 425,000,000 394,800,000 401,600,000 401,900,000 422,700,000 438,500,000 445,400,000 457,100,000 476,600,000 457,200,000 461,800,000 459,300,000 480,700,000 485,700,000 408,600,000 414,100,000 464,200,000 462,900,000 480,400,000 473,200,000 527,900,000 475,800,000 486,900,000 484,200,000 514,300,000 483,300,000 471,700,000 465,700,000 489,000,000 430,500,000 420,800,000 420,000,000 440,300,000 447,300,000 451,400,000 477,000,000 486,100,000 498,400,000 477,500,000 485,500,000                      460,000,000 
        other non-current liabilities
      481,300,000 449,500,000 479,200,000 478,600,000 572,000,000 528,100,000 575,200,000 532,400,000 543,400,000 515,500,000 619,700,000 572,600,000 634,500,000 625,100,000 645,000,000 600,700,000 639,100,000 671,500,000 660,300,000 655,200,000 662,600,000 749,200,000 732,600,000 714,700,000 714,400,000 720,300,000 713,300,000 812,800,000 791,600,000 786,800,000 785,100,000 766,900,000 749,400,000 731,400,000 728,400,000 708,300,000 733,000,000 685,000,000 733,200,000 672,600,000 699,200,000 719,300,000 694,000,000 723,900,000 660,300,000 616,400,000 563,000,000 595,700,000 557,200,000 558,600,000 555,100,000 558,600,000 473,900,000 502,200,000 467,300,000 452,100,000 424,600,000 402,100,000 402,800,000 402,400,000 389,300,000 386,200,000 375,100,000 340,400,000 333,700,000 367,400,000 395,000,000 435,900,000 436,400,000 412,000,000 412,100,000 407,700,000 398,300,000 400,200,000 384,900,000 359,100,000 375,800,000 426,800,000 379,100,000 319,000,000 473,900,000 404,100,000 422,400,000 408,900,000 272,200,000 
        total liabilities
      13,253,300,000 13,242,100,000 13,432,000,000 14,415,700,000 13,252,900,000 13,074,000,000 13,367,000,000 15,221,200,000 13,249,600,000 13,318,700,000 13,005,700,000 15,100,700,000 13,409,000,000 13,750,800,000 14,324,200,000 16,304,400,000 14,511,400,000 14,138,200,000 13,342,900,000 15,005,700,000 13,161,300,000 12,250,600,000 13,698,900,000 14,761,600,000 13,309,100,000 13,880,200,000 13,533,600,000 13,019,600,000 11,183,200,000 10,100,200,000 9,852,900,000 10,207,300,000 9,437,900,000 9,422,500,000 9,460,300,000 10,175,700,000 9,617,100,000 9,359,500,000 9,296,600,000 10,331,400,000 9,356,000,000 9,256,100,000 9,012,700,000 10,338,600,000 9,407,200,000 9,871,400,000 9,338,100,000 10,405,100,000 8,968,900,000 9,729,300,000 9,500,600,000 10,810,100,000 9,081,900,000 9,176,900,000 9,114,100,000 10,135,900,000 9,154,700,000 9,534,000,000 9,358,500,000 10,212,700,000 9,349,600,000 9,227,400,000 8,669,800,000 9,449,000,000 8,362,500,000 8,542,300,000 8,502,700,000 9,649,600,000 9,686,200,000 9,784,400,000 9,456,400,000 10,125,900,000 9,611,400,000 9,570,300,000 9,265,600,000 9,923,500,000 9,059,500,000 9,430,600,000 9,201,800,000 9,999,900,000 9,792,800,000 10,362,100,000 10,123,500,000 10,554,000,000  
        redeemable non-controlling interests
      17,000,000 20,000,000 48,600,000 45,600,000 45,600,000 42,800,000 36,000,000 42,300,000 41,400,000 45,500,000 38,400,000 38,300,000 9,100,000 9,400,000 7,900,000  72,600,000                                                                     
        stockholders’ equity:
                                                                                           
        common stock
      37,400,000 37,400,000 37,300,000 37,200,000 38,400,000 38,300,000 38,300,000 38,300,000 39,200,000 39,200,000 39,100,000 38,900,000 39,600,000 39,600,000 39,700,000 39,300,000 39,300,000 39,300,000 39,300,000 39,000,000 38,900,000 38,900,000 38,900,000 38,700,000 38,700,000 38,600,000 38,600,000 38,300,000 39,100,000 39,000,000 39,000,000 38,600,000 39,900,000 39,900,000 39,800,000 39,400,000 40,700,000 40,700,000 40,700,000 40,400,000 41,500,000 41,500,000 41,400,000 41,200,000 53,300,000 53,300,000 53,200,000 53,000,000 51,200,000 51,100,000 50,900,000 48,800,000 48,800,000 48,700,000 48,700,000 48,200,000 48,200,000 48,100,000 47,700,000 47,500,000 47,400,000 47,400,000 47,200,000 47,100,000 47,000,000 47,000,000 46,600,000  46,400,000 46,300,000 46,000,000         43,000,000  42,700,000 42,600,000 42,500,000 42,300,000 
        additional paid-in capital
      478,100,000 460,000,000 433,800,000 432,600,000 778,400,000 759,800,000 737,800,000 728,500,000 1,052,800,000 1,035,200,000 1,016,700,000 1,057,500,000 1,239,300,000 1,222,100,000 1,206,000,000 1,226,600,000 1,151,600,000 1,132,400,000 1,107,900,000 1,099,300,000 1,028,100,000 996,300,000 981,200,000 977,300,000 941,000,000 921,400,000 903,300,000 895,900,000 1,041,800,000 1,022,900,000 963,700,000 955,200,000 1,235,700,000 1,220,200,000 1,199,700,000 1,199,200,000 1,481,200,000 1,460,400,000 1,434,000,000 1,404,100,000 1,613,600,000 1,597,400,000 1,580,000,000 1,547,500,000 3,024,400,000 3,017,200,000 3,002,700,000 2,975,200,000 2,754,100,000 2,735,700,000 2,705,600,000 2,465,400,000 2,448,500,000 2,446,900,000 2,437,200,000 2,427,500,000 2,397,400,000 2,398,000,000 2,436,000,000 2,456,800,000 2,464,700,000 2,462,600,000 2,445,900,000 2,441,000,000 2,424,500,000 2,416,800,000 2,415,900,000 2,682,800,000 2,672,800,000 2,656,500,000 2,649,200,000 2,635,000,000    2,586,200,000    2,224,100,000  2,226,300,000 2,212,500,000 2,208,900,000 2,131,000,000 
        retained earnings
      4,294,700,000 4,294,300,000 4,230,700,000 4,440,200,000 4,219,600,000 4,325,100,000 4,239,100,000 4,254,500,000 3,911,100,000 3,782,800,000 3,638,100,000 3,632,100,000 3,449,900,000 3,311,800,000 3,196,700,000 3,154,300,000 2,908,900,000 2,777,500,000 2,623,100,000 2,636,900,000 2,623,400,000 2,444,300,000 2,591,100,000 2,689,900,000 2,455,500,000 2,381,800,000 2,303,100,000 2,400,100,000 2,158,400,000 2,076,700,000 2,010,500,000 2,093,600,000 1,849,800,000 1,774,900,000 1,751,200,000 1,804,300,000 1,546,600,000 1,475,300,000 1,379,000,000 1,437,600,000 1,226,200,000 1,201,800,000 1,126,200,000 1,183,300,000 915,200,000 865,500,000 805,000,000 864,500,000 710,400,000 696,500,000 648,700,000 738,300,000 450,900,000 408,200,000 335,700,000 405,100,000 176,200,000                             
        accumulated other comprehensive loss, net of tax
      -893,900,000 -889,500,000 -1,027,100,000 -1,112,600,000 -946,100,000 -1,024,000,000 -995,700,000 -946,200,000 -982,500,000 -922,700,000 -936,600,000 -960,400,000 -1,102,600,000 -988,900,000 -892,300,000 -894,200,000 -928,400,000 -886,300,000 -896,300,000 -880,200,000 -967,800,000 -1,029,100,000 -1,078,700,000 -930,000,000 -966,200,000 -917,900,000 -929,700,000 -941,100,000 -925,300,000 -903,400,000 -790,800,000 -827,400,000 -832,700,000 -874,200,000 -909,400,000 -962,500,000 -862,800,000 -797,300,000 -787,500,000 -845,600,000 -826,200,000 -735,800,000 -764,700,000 -636,700,000 -495,200,000 -383,100,000 -410,900,000 -411,200,000 -369,300,000 -395,400,000 -325,400,000 -288,000,000 -157,600,000 -168,300,000 -181,800,000 -225,700,000 -181,600,000 -46,600,000 -73,800,000 -119,000,000 -161,800,000 -240,800,000 -190,700,000 -176,600,000 -199,400,000 -263,900,000 -343,000,000 -318,500,000 -156,000,000 -82,400,000 -74,900,000 -118,600,000    -303,000,000    -276,000,000  -290,800,000 -264,100,000 -248,600,000  
        less: treasury stock
      259,500,000 189,800,000 90,600,000  364,500,000 263,600,000 195,400,000  -340,400,000 -248,200,000 -198,000,000  -221,600,000 -147,900,000 -63,100,000              -176,100,000 -173,500,000 -113,900,000  -279,300,000 -178,300,000 -118,300,000  -264,300,000 -183,500,000 -124,700,000  -191,300,000 -121,000,000 -70,200,000  -1,414,400,000 -1,363,600,000 -1,311,200,000  -1,065,300,000 -965,100,000 -852,000,000  -616,300,000 -533,000,000 -467,400,000  -283,100,000 -153,100,000 -24,600,000  -14,100,000 -14,100,000 -14,100,000  -14,000,000 -14,000,000 -14,000,000  -14,000,000 -14,000,000 -14,000,000               
        total ipg stockholders’ equity
      3,656,800,000 3,712,400,000 3,584,100,000 3,797,400,000 3,725,800,000 3,835,600,000 3,824,100,000 3,942,600,000 3,680,200,000 3,686,300,000 3,559,300,000 3,647,900,000 3,404,600,000 3,436,700,000 3,487,000,000 3,526,000,000 3,171,400,000 3,062,900,000 2,874,000,000 2,895,000,000 2,722,600,000 2,450,400,000 2,532,500,000 2,775,900,000 2,469,000,000 2,423,900,000 2,315,300,000 2,393,200,000 2,137,900,000 2,061,700,000 2,108,500,000 2,201,000,000 2,013,400,000 1,982,500,000 1,963,000,000 2,017,100,000 1,941,400,000 1,995,600,000 1,941,500,000 1,965,500,000 1,863,800,000 1,983,900,000 1,912,700,000 2,116,300,000 2,083,300,000 2,189,300,000 2,138,800,000 2,215,200,000 2,302,600,000 2,344,300,000 2,449,300,000 2,420,600,000 2,395,800,000 2,424,000,000 2,393,900,000 2,461,700,000 2,378,600,000 2,463,600,000 2,497,900,000 2,529,000,000 2,296,100,000 2,169,700,000 2,423,900,000 2,497,700,000 2,321,900,000 2,225,600,000 2,117,400,000                   
        non-controlling interests
      38,200,000 52,600,000 60,800,000 67,100,000 58,900,000 59,400,000 59,000,000 61,200,000 56,100,000 59,500,000 60,700,000 58,100,000 52,500,000 52,300,000 61,800,000  49,900,000                                                                     
        total stockholders’ equity
      3,695,000,000 3,765,000,000 3,644,900,000 3,864,500,000 3,784,700,000 3,895,000,000 3,883,100,000 4,003,800,000 3,736,300,000 3,745,800,000 3,620,000,000 3,706,000,000 3,457,100,000 3,489,000,000 3,548,800,000 3,589,200,000 3,221,300,000 3,111,300,000 2,921,600,000 2,943,900,000 2,760,600,000 2,491,100,000 2,575,200,000 2,825,600,000 2,503,100,000 2,458,400,000 2,354,600,000 2,432,800,000 2,170,200,000 2,091,600,000 2,140,300,000 2,235,800,000 2,040,200,000 2,012,300,000 1,996,400,000 2,056,700,000 1,975,500,000 2,028,100,000 1,973,900,000 2,001,800,000 1,891,600,000 2,013,100,000 1,944,700,000 2,151,200,000 2,115,900,000 2,221,900,000 2,171,300,000 2,250,800,000 2,333,500,000 2,376,400,000 2,482,400,000 2,456,600,000 2,426,500,000 2,452,400,000 2,428,100,000 2,497,300,000 2,413,500,000 2,495,500,000 2,532,800,000 2,566,900,000 2,331,500,000 2,207,800,000 2,464,500,000 2,536,300,000 2,353,400,000 2,260,000,000 2,148,100,000 2,475,600,000 2,411,100,000 2,422,600,000 2,327,400,000 2,332,200,000 2,054,300,000 1,995,800,000 1,829,000,000 1,940,600,000 1,872,000,000 1,883,500,000 1,790,600,000 1,945,300,000 1,492,700,000 1,567,600,000 1,567,800,000 1,718,300,000 2,001,800,000 
        total liabilities and stockholders' equity
      16,965,300,000 17,027,100,000 17,125,500,000  17,083,200,000 17,011,800,000 17,286,100,000  17,027,300,000 17,110,000,000 16,664,100,000  16,875,200,000 17,249,200,000 17,880,900,000  17,805,300,000 17,321,700,000 16,349,700,000  16,074,700,000 14,896,900,000 16,428,900,000  15,997,600,000 16,526,900,000 16,050,000,000  13,513,100,000 12,357,600,000 12,240,100,000  11,716,100,000 11,678,200,000 11,697,900,000  11,839,500,000 11,633,900,000 11,516,800,000  11,474,100,000 11,499,300,000 11,200,200,000                                           
        less: treasury stock, at cost: 2024 – 0 shares; 2023 – 4.3 shares
                                                                                           
        total liabilities and equity
         18,325,800,000    19,267,300,000    18,845,000,000    19,909,200,000    18,042,700,000    17,751,900,000    15,620,300,000    12,695,200,000    12,485,200,000    12,585,100,000    12,747,200,000 11,778,400,000 12,339,700,000 11,759,200,000 12,905,000,000 11,532,000,000 12,336,700,000 12,218,300,000 13,493,900,000 11,728,700,000 11,851,600,000 11,765,900,000 12,876,600,000 11,825,900,000 12,301,600,000 12,177,200,000 13,070,800,000 11,950,600,000 11,704,600,000 11,389,400,000 12,263,100,000 10,978,300,000 11,065,100,000 10,929,700,000                   
        less: treasury stock, at cost: 2023 – 4.3 shares; 2022 – 3.1 shares
             132,500,000                                                                              
        marketable securities
              101,800,000 102,800,000                        3,200,000 3,100,000 3,000,000 3,000,000 2,800,000 6,900,000 6,800,000 6,900,000 6,700,000 6,900,000 6,600,000 6,400,000 6,300,000 5,600,000 5,300,000 5,200,000 4,600,000 5,400,000 16,000,000 14,300,000 12,700,000 13,800,000 12,900,000 13,800,000 14,200,000 14,100,000 13,700,000 11,300,000 12,500,000 12,700,000 10,900,000 10,600,000 10,900,000 16,500,000 167,700,000 17,800,000 25,000,000 21,100,000 22,500,000 103,800,000 260,200,000 51,500,000 1,400,000 205,600,000 442,700,000 420,000,000 115,600,000    420,000,000  
        less: treasury stock, at cost: 2022 – 3.1 shares; 2021 – 0.0 shares
                 120,200,000                                                                          
        redeemable noncontrolling interests
                     15,600,000  72,200,000 85,200,000 93,100,000 152,800,000 155,200,000 154,800,000 164,700,000 185,400,000 188,300,000 161,800,000 167,900,000 159,700,000 165,800,000 246,900,000 252,100,000 238,000,000 243,400,000 241,200,000 252,800,000 246,900,000 246,300,000 246,300,000 251,900,000 226,500,000 230,100,000 242,800,000 257,400,000 255,300,000 246,400,000 249,800,000 249,100,000 229,600,000 231,000,000 235,300,000 227,200,000 220,300,000 222,300,000 223,700,000 243,400,000 257,700,000 272,100,000 285,900,000 291,200,000 269,500,000 269,400,000 255,100,000 277,800,000 262,400,000 262,800,000 278,900,000                   
        noncontrolling interests
                     63,200,000  48,400,000 47,600,000 48,900,000 38,000,000 40,700,000 42,700,000 49,700,000 34,100,000 34,500,000 39,300,000 39,600,000 32,300,000 29,900,000 31,800,000 34,800,000 26,800,000 29,800,000 33,400,000 39,600,000 34,100,000 32,500,000 32,400,000 36,300,000 27,800,000 29,200,000 32,000,000 34,900,000 32,600,000 32,600,000 32,500,000 35,600,000 30,900,000 32,100,000 33,100,000 36,000,000 30,700,000 28,400,000 34,200,000 35,600,000 34,900,000 31,900,000 34,900,000 37,900,000 35,400,000 38,100,000 40,600,000 38,600,000 31,500,000 34,400,000 30,700,000                   
        commitments and contingencies
                                                                                           
        less: treasury stock, at cost: 2018 – 0.0 shares; 2017 – 3.0 shares
                                                                                           
        expenditures billable to clients
                                     1,747,400,000 1,742,300,000 1,720,700,000 1,742,700,000 1,518,100,000 1,843,700,000 1,710,400,000 1,774,200,000 1,594,400,000 1,590,200,000 1,452,400,000 1,497,800,000 1,424,200,000 1,725,600,000 1,798,600,000 1,692,700,000 1,536,400,000 1,551,000,000 1,545,900,000 1,511,400,000 1,318,800,000 1,513,600,000 1,504,100,000 1,447,300,000 1,247,200,000 1,525,300,000 1,348,700,000 1,357,800,000 1,217,100,000 1,329,400,000 1,231,500,000 1,127,600,000 1,100,100,000 1,135,100,000 1,021,900,000 1,072,500,000 1,099,500,000 1,411,300,000 1,325,600,000 1,320,000,000 1,210,600,000 1,325,100,000 1,103,500,000 1,118,200,000 1,021,400,000 1,068,700,000 1,056,400,000 945,000,000 917,600,000 430,800,000 445,400,000 395,300,000 345,200,000 315,200,000 
        less: treasury stock, at cost: 2017 – 3.0 shares; 2016 – 2.7 shares
                                     -59,000,000                                                      
        less: treasury stock, at cost: 2016 - 2.7 shares; 2015 - 3.1 shares
                                         -63,300,000                                                  
        less: treasury stock, at cost: 2015 - 3.1 shares; 2014 - 0.8 shares
                                             -71,000,000                                              
        less: treasury stock, at cost: 2014 - 0.8 shares; 2013 - 107.8 shares
                                                 -19,000,000                                          
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,086.1 and 1,111.7, respectively
                                                  530,200,000                                         
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,112.1 and 1,111.7, respectively
                                                   537,100,000                                        
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,103.9 and 1,111.7, respectively
                                                    534,300,000                                       
        furniture, equipment and leasehold improvements
                                                     540,000,000    504,800,000    459,800,000    454,300,000    490,100,000    561,500,000    620,000,000              
        preferred stock, no par value, shares authorized: 20.0 series b shares issued and outstanding: 2013 – 0.0; 2012 – 0.2
                                                                                           
        less: treasury stock, at cost: 2013 - 107.8 shares; 2012 - 74.6 shares
                                                     -1,266,300,000                                      
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,160.2 and 1,134.9, respectively
                                                      490,500,000                                     
        preferred stock
                                                      221,500,000 221,500,000 221,500,000  221,500,000 221,500,000 221,500,000  221,500,000 221,500,000 221,500,000  221,500,000 221,500,000 525,000,000  525,000,000 525,000,000 525,000,000  525,000,000 525,000,000 525,000,000               
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,144.6 and 1,134.9
                                                       475,900,000                                    
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,136.6 and 1,134.9
                                                        485,600,000                                   
        preferred stock, no par value, shares authorized: 20.0 series b shares issued and outstanding: 2012 – 0.2; 2011 – 0.2
                                                         221,500,000                                  
        less: treasury stock, at cost: 2012 - 74.6 shares; 2011 - 41.9 shares
                                                         -765,400,000                                  
        restricted marketable securities
                                                          94,700,000 136,000,000                                
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,139.4 and 1,126.3
                                                          466,700,000                                 
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,128.2 and 1,126.3
                                                           447,000,000                                
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,145.0 and 1,126.3
                                                            451,100,000                               
        preferred stock, no par value, shares authorized: 20.0 series b shares issued and outstanding: 2011 – 0.2; 2010 – 0.2
                                                             221,500,000                              
        less: treasury stock, at cost: 2011 - 41.9 shares; 2010 - 0.4 shares
                                                             -414,900,000                              
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,180.1 and 1,147.1
                                                              441,500,000                             
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,206.6 and 1,147.1
                                                               450,800,000                            
        accumulated deficit
                                                               -4,300,000 -108,900,000 -63,700,000 -261,600,000 -306,900,000 -389,400,000 -324,800,000 -461,200,000 -485,300,000 -513,100,000 -446,100,000 -663,100,000 -708,800,000 -803,900,000 -741,100,000    -899,200,000    -841,100,000  -707,600,000 -722,000,000 -578,200,000  
        furniture, equipment and leasehold improvements, net of accumulated
                                                                                           
        depreciation of 1,181.8 and 1,147.1
                                                                445,500,000                           
        preferred stock, no par value, shares authorized: 20.0 series b shares issued and outstanding: 2010 – 0.2; 2009 – 0.5
                                                                 221,500,000                          
        less: treasury stock, at cost: 0.4 shares
                                                                 -14,100,000    -14,000,000                      
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,167.5 and 1,119.1
                                                                  441,100,000                         
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,110.5 and 1,119.1
                                                                   440,400,000                        
        other assets
                                                                   427,900,000 417,900,000 416,000,000 443,800,000 443,600,000 434,800,000 438,400,000 484,300,000 419,900,000 424,100,000 440,800,000 475,400,000 467,200,000 348,200,000 358,900,000 368,400,000 385,200,000 295,000,000 299,000,000 316,400,000 284,700,000 288,000,000 290,600,000 273,000,000 
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,118.2 and 1,119.1
                                                                    460,600,000                       
        short-term debt
                                                                     308,600,000 88,200,000 137,300,000 327,200,000 332,800,000 81,900,000 91,800,000 103,300,000 305,100,000 475,400,000 490,300,000 464,200,000 82,900,000 63,700,000 55,600,000 49,300,000 56,800,000 66,700,000 332,600,000 337,200,000 325,900,000  
        deferred compensation and employee benefits
                                                                     565,000,000 559,400,000 551,300,000 536,700,000 549,800,000 521,900,000 545,800,000 555,700,000 553,500,000 598,100,000 605,600,000 599,900,000 606,300,000 591,000,000 597,000,000 588,400,000 592,100,000 583,700,000 575,900,000 571,200,000 590,700,000  
        preferred stock, no par value, shares authorized: 20.0 series b shares issued and outstanding: 0.5
                                                                     525,000,000                      
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,145.3 and 1,055.8
                                                                      503,200,000                     
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,109.5 and 1,055.8
                                                                       521,800,000                    
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,073.4 and 1,055.8
                                                                        529,500,000                   
        ipg stockholders’ equity:
                                                                                           
        preferred stock, no par value, shares authorized: 20.0
                                                                                         373,700,000  
        series b shares issued and outstanding: 0.5
                                                                         525,000,000    525,000,000    525,000,000          
        shares issued: 2008—477.1; 2007—471.7
                                                                                           
        shares outstanding: 2008—476.6; 2007—471.2
                                                                         46,400,000                  
        less:
                                                                                           
        treasury stock
                                                                         -14,000,000    -14,000,000    -14,000,000    -14,000,000  -14,000,000 -14,000,000 -14,000,000  
        total liabilities and stockholders’ equity
                                                                         12,125,200,000 12,097,300,000 12,207,000,000 11,783,800,000 12,458,100,000 11,665,700,000 11,566,100,000 11,094,600,000 11,864,100,000 10,931,500,000 11,314,100,000 10,992,400,000 11,945,200,000 11,285,500,000 11,929,700,000 11,691,300,000 12,272,300,000 11,202,300,000 
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,111.3 and 1,089.0
                                                                          571,800,000                 
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,123.4 and 1,089.0
                                                                           598,600,000                
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,113.9 and 1,089.0
                                                                            616,800,000               
        shares issued: 2007 — 471.7; 2006 — 469.0
                                                                                           
        shares outstanding: 2007 — 471.2; 2006 — 468.6
                                                                             45,900,000              
        furniture, equipment and leasehold improvements, net of accumulated depreciation of 1,106.7 and 1,017.0
                                                                              615,600,000             
        land, buildings and equipment, net of accumulated depreciation of 1,072.0 and 1,017.0
                                                                               618,800,000            
        prepaid expenses and other current assets
                                                                                246,400,000 224,500,000 194,200,000 217,500,000 219,700,000 188,300,000 147,200,000 142,600,000 160,800,000 152,600,000 203,400,000 
        land, buildings and equipment, net of accumulated depreciation of 1,032.6 and 1,017.0
                                                                                605,600,000           
        investments
                                                                                127,900,000 128,100,000 136,900,000 129,300,000 179,200,000 170,600,000 169,200,000 175,500,000 180,500,000 168,700,000 183,800,000 
        minority interests in consolidated subsidiaries
                                                                                41,600,000 46,500,000 38,000,000   49,300,000  45,500,000 50,900,000 55,200,000 55,400,000 
        land, buildings and equipment
                                                                                 624,000,000 608,000,000 611,700,000 625,600,000 650,000,000 673,700,000 682,500,000 703,300,000 722,900,000  
        series a shares issued and outstanding: 2005 — 7.5
                                                                                           
        shares issued: 2006 — 469.0; 2005 — 430.3
                                                                                           
        shares outstanding: 2006 — 468.6; 2005 — 429.9
                                                                                 45,600,000          
        unamortized deferred compensation
                                                                                     -89,400,000  -62,700,000 -60,900,000 -66,000,000  
        total non-current assets
                                                                                     4,447,800,000    4,635,600,000  
        total non-current liabilities
                                                                                     3,143,400,000    2,990,800,000 3,029,300,000 
        short-term marketable securities
                                                                                      2,000,000 1,300,000 1,200,000   
        accounts receivable, net allowance of 120.4 and 136.1
                                                                                       4,920,700,000    
        preferred stock, no par value
                                                                                       373,700,000 373,700,000   
        current assets:
                                                                                           
        fixed assets, at cost:
                                                                                           
        land and buildings
                                                                                          104,300,000 
        furniture and equipment
                                                                                          1,016,500,000 
        leasehold improvements
                                                                                          490,300,000 
        less: accumulated depreciation
                                                                                           
        total fixed assets
                                                                                          646,300,000 
        other assets:
                                                                                           
        total other assets
                                                                                          3,818,800,000 
        current liabilities:
                                                                                           
        accrued expenses
                                                                                          849,400,000 
        loans payable
                                                                                          74,500,000 
        convertible subordinated notes
                                                                                           
        non-current liabilities:
                                                                                           
        convertible senior notes
                                                                                          800,000,000 
        accrued postretirement benefits
                                                                                          52,800,000 
        preferred stock, no par value,
                                                                                           
        shares authorized: 20.0, shares issued: 2004 -7.5; 2003 - 7.5
                                                                                          373,700,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 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 2004-09-30 
                                                                                            
          cash flows from operating activities:
                                                                                            
          net income
        127,100,000 163,600,000 -85,300,000 358,300,000 24,200,000 219,600,000 113,600,000 471,600,000 245,700,000 268,700,000 132,100,000 305,900,000 257,500,000 231,800,000 160,900,000 368,000,000 244,600,000 267,800,000 92,400,000 117,000,000 278,500,000 -43,900,000 2,600,000 342,200,000 168,400,000 172,800,000 -9,500,000 342,500,000 163,500,000 147,800,000 -16,100,000 333,500,000 148,800,000 94,600,000 18,100,000 336,900,000 132,700,000 160,200,000 2,700,000 282,900,000 78,000,000 123,800,000 -4,200,000 331,300,000 92,800,000 103,700,000 -22,400,000 212,100,000 49,200,000 86,100,000 -58,500,000 337,100,000 67,700,000 105,500,000 -45,700,000 278,300,000 217,500,000 108,900,000 -53,200,000 222,800,000 45,600,000 83,100,000 -70,300,000 159,700,000 25,900,000 31,400,000 -73,600,000 217,000,000 45,700,000 95,100,000 -62,800,000 178,400,000 -21,900,000 137,000,000 -125,900,000 63,800,000 5,800,000 68,900,000 -170,200,000      
          adjustments to reconcile net income to net cash from operating activities:
                                                                                            
          depreciation and amortization
        62,000,000 61,200,000 61,000,000 63,400,000 65,300,000 65,000,000 65,200,000 65,300,000 66,000,000 66,500,000 66,500,000 72,100,000 67,000,000 67,100,000 67,800,000 75,100,000 69,400,000 70,100,000 69,200,000 73,700,000 71,000,000 73,100,000 72,800,000  69,000,000 73,000,000 71,100,000  44,000,000 44,000,000 46,000,000                                                      
          restructuring charges
        33,900,000 36,700,000 109,200,000                                                                                  
          amortization of restricted stock and other non-cash compensation
        13,700,000 19,600,000 12,200,000 12,400,000 17,900,000 18,100,000 16,400,000 10,700,000 12,100,000 12,800,000 11,100,000 12,000,000 12,700,000 12,800,000 12,500,000 12,200,000 15,700,000 21,900,000 20,300,000 10,600,000 20,600,000 12,600,000 23,200,000 21,900,000 14,200,000 15,900,000 28,200,000 22,500,000 13,700,000 16,000,000 30,000,000 22,200,000 13,800,000 16,300,000 29,700,000 26,600,000 19,100,000 16,800,000 23,100,000 20,600,000 16,500,000 16,400,000 16,800,000 16,400,000 11,700,000 11,100,000 15,100,000 10,200,000 8,000,000 9,400,000 15,500,000 6,800,000 8,300,000 12,700,000 16,700,000 9,600,000 12,600,000 13,800,000 15,700,000 11,500,000 12,000,000 12,800,000 13,700,000 11,800,000 12,900,000 15,500,000 9,300,000 15,700,000 21,400,000 23,200,000 19,800,000 24,400,000 22,600,000 13,100,000 19,600,000          
          net losses on sales of businesses
        -4,500,000 -1,900,000 36,400,000 57,800,000 1,700,000 -2,100,000 6,800,000 -36,800,000 12,100,000 2,600,000 4,200,000 7,300,000 -3,100,000 700,000 6,400,000 800,000 4,400,000 1,700,000 12,500,000 15,200,000 8,600,000 19,900,000 23,300,000                                                              
          provision for uncollectible receivables
        4,100,000 1,600,000 1,200,000 -6,500,000 3,600,000 3,100,000 1,700,000 1,900,000 2,100,000 3,300,000 -100,000 -3,700,000 800,000 -5,600,000 -400,000 -8,300,000    9,700,000 10,400,000 16,800,000 22,600,000                                                              
          net amortization of bond discounts and deferred financing costs
        100,000 100,000 100,000 100,000 100,000 500,000 300,000 300,000 300,000 700,000 700,000 800,000 800,000 700,000 700,000 900,000 1,000,000 1,100,000 2,700,000 2,800,000 3,300,000 3,000,000 2,300,000 2,300,000 2,400,000 2,300,000 2,300,000 2,300,000 1,500,000 1,300,000 1,400,000 1,600,000 1,400,000 1,400,000 1,400,000 1,400,000 1,400,000 1,400,000 1,400,000 1,600,000 1,400,000 1,400,000 1,400,000 1,400,000 1,400,000 1,300,000 1,000,000                                      
          impairment of goodwill
                                                                                           
          deferred income tax
        10,000,000 -52,600,000 -58,700,000 -3,200,000 19,000,000 -49,900,000 6,000,000 10,600,000 23,500,000 -43,200,000 14,200,000 -53,000,000 26,100,000 -20,000,000 19,900,000 -42,800,000 -12,000,000 28,400,000 18,200,000 -37,000,000                                                                 
          other
        25,200,000 5,400,000 2,900,000 11,300,000 16,300,000 9,700,000 8,900,000 9,300,000 4,100,000 4,200,000 9,200,000 12,900,000 -18,800,000 6,600,000 12,700,000 14,600,000 -2,700,000 2,200,000 4,600,000 -700,000 9,100,000 10,400,000 1,200,000 8,400,000 -600,000 -11,000,000 13,100,000 -3,000,000 2,300,000 -4,900,000 6,800,000 -3,400,000 5,900,000 3,500,000 6,700,000 6,500,000 1,000,000 2,800,000 25,200,000 10,600,000 1,200,000 900,000 10,900,000 -4,100,000 2,200,000 10,900,000 4,000,000 10,600,000 4,100,000 -11,100,000 -400,000 2,300,000 1,200,000 -1,600,000 10,400,000 12,300,000 2,200,000 3,500,000 10,200,000 -1,100,000 7,800,000 7,300,000 10,900,000 3,600,000 3,000,000 14,100,000 -7,300,000 15,100,000 -400,000 9,000,000 2,200,000 24,400,000 -10,900,000 -5,000,000 7,300,000 -24,000,000 19,500,000 2,700,000 200,000 12,800,000 5,200,000 -700,000 -7,500,000  
          changes in assets and liabilities, net of acquisitions and divestitures, providing (using) cash:
                                                                                            
          accounts receivable
        -150,300,000 -70,900,000 1,073,800,000 -1,080,100,000 -190,500,000 -220,000,000 1,369,400,000 -1,633,600,000 60,600,000 -351,400,000 1,539,100,000 -1,088,300,000 -244,800,000 -7,600,000 978,000,000 -1,159,100,000 -203,400,000 -443,700,000 1,158,600,000 -1,208,500,000 -111,300,000 527,700,000 1,343,500,000 -1,121,400,000 266,900,000 -345,100,000 1,088,400,000 -1,047,400,000 205,600,000 -437,200,000 675,200,000 -838,200,000 106,100,000 -36,900,000 806,600,000 -887,000,000 238,100,000 -258,300,000 686,500,000 -544,100,000 23,900,000 -176,400,000 460,500,000 -643,100,000 295,400,000 -230,000,000 557,600,000 -744,000,000 256,400,000 -236,900,000 567,400,000 -654,900,000 -64,900,000 -67,200,000 742,300,000 -785,000,000 314,800,000 -118,400,000 369,400,000 -464,900,000 62,000,000 -416,300,000 271,600,000 -633,400,000 210,600,000 81,400,000 520,900,000 -181,500,000 118,100,000 -151,800,000 499,100,000 -365,800,000 261,500,000 -341,800,000 489,600,000 -455,400,000 285,400,000 -44,800,000 450,200,000 -173,000,000 437,600,000 -389,200,000 164,200,000 36,100,000 
          accounts receivable, billable to clients
        -65,500,000 124,200,000 -45,600,000 61,700,000 -37,400,000 -36,100,000 54,000,000 216,400,000 -233,300,000 -54,500,000 -110,000,000 206,100,000 3,000,000 -149,300,000 184,700,000 -203,700,000 -132,100,000 -194,400,000 -40,800,000 39,500,000 -335,900,000 459,600,000 -40,700,000 113,300,000 -76,600,000 99,800,000 -175,200,000 93,500,000 -69,300,000 -13,000,000 -220,700,000                                                      
          prepaid expenses
        106,100,000 -21,300,000 -154,800,000 -100,700,000 52,100,000 14,600,000 -125,400,000 16,800,000                                                                             
          other current assets
        -8,600,000 500,000 4,400,000 21,700,000 -31,500,000 15,300,000 38,700,000 -53,500,000   -108,600,000 33,600,000 18,200,000 -30,800,000 -82,100,000 20,400,000 30,800,000 -28,300,000 -68,800,000 72,600,000 14,300,000 -17,500,000 -57,500,000 2,300,000 32,600,000 17,300,000 -79,400,000 33,400,000 24,000,000 -36,300,000 -88,300,000 75,600,000 33,800,000 -10,400,000 -71,600,000 17,100,000 11,900,000 26,000,000 -59,200,000 2,900,000 5,600,000 13,300,000 -31,000,000 7,800,000 11,700,000 -29,000,000 -47,700,000 27,500,000 17,600,000 -3,200,000 -53,200,000 21,300,000 28,200,000 -11,900,000 -34,100,000 -5,100,000 -6,200,000 -2,100,000 -28,600,000 14,700,000                         
          accounts payable
        21,100,000 -388,700,000 -961,400,000 1,427,800,000 85,800,000 223,100,000 -1,532,600,000 1,808,000,000 -43,000,000 81,100,000 -1,798,300,000 1,574,400,000 -144,200,000 -152,300,000 -1,685,900,000 2,160,200,000 313,300,000 731,600,000 -1,347,000,000 1,987,700,000 716,700,000 -1,264,500,000 -1,466,900,000 1,498,700,000 -275,800,000 284,400,000 -961,300,000 1,195,600,000 -187,600,000 414,900,000 -994,200,000 1,298,300,000 -363,500,000 79,600,000 -702,500,000 570,200,000 154,200,000 130,600,000 -981,100,000 957,000,000 219,200,000 170,800,000 -946,100,000 838,600,000 -431,200,000 321,100,000 -905,600,000 1,229,200,000 -238,100,000 324,800,000 -898,200,000 732,300,000 -230,500,000 186,200,000 -808,400,000 754,500,000 -401,700,000 13,900,000 -429,600,000 645,600,000 -138,600,000 487,100,000 -347,800,000 690,400,000 -153,400,000 -97,500,000 -612,500,000 332,000,000 -226,700,000 157,500,000 -256,000,000 202,800,000 -210,200,000 133,300,000 -347,400,000 444,200,000         
          accrued liabilities
        59,000,000 15,900,000 -84,300,000 168,900,000 19,800,000 -29,000,000 -174,400,000 86,700,000 64,500,000 13,100,000 -227,900,000 129,200,000 70,300,000 32,200,000 -334,500,000 174,100,000 119,300,000 49,100,000 -233,600,000 240,600,000 48,100,000 49,400,000 -158,800,000 100,900,000 18,700,000 -14,700,000 -77,500,000 162,300,000 -10,600,000 -11,300,000 -164,600,000 46,500,000 26,100,000 -49,000,000 -264,900,000 146,800,000 43,900,000 -53,000,000 -198,800,000 75,000,000 88,000,000 -25,000,000 -173,300,000 147,000,000 66,300,000 -200,000 -173,300,000 135,500,000 -2,600,000 -18,500,000 -131,800,000 114,200,000 17,900,000 -39,000,000 -150,900,000 103,100,000 266,400,000 158,200,000 -523,800,000 341,100,000 71,200,000 215,900,000 -340,700,000 311,700,000 65,400,000 51,100,000 -388,600,000 -67,600,000 95,900,000 187,700,000 -363,700,000 262,500,000 153,700,000 16,800,000 -311,200,000 295,100,000         
          contract liabilities
        -26,200,000 38,000,000 81,800,000 -45,700,000 -48,700,000 -96,300,000 30,000,000 -17,800,000 7,700,000 -5,800,000 10,500,000 -3,700,000 21,400,000 -74,300,000 74,400,000 67,200,000 -48,300,000 -12,700,000 34,700,000 27,900,000 44,900,000 -19,600,000 8,800,000 9,300,000 -13,000,000 11,000,000 39,200,000 -1,200,000 8,100,000 20,400,000 17,600,000                                                      
          other non-current assets and liabilities
        -27,100,000 -27,400,000 -29,900,000 -74,100,000 -6,000,000 -14,900,000 -36,000,000 -60,200,000 -500,000 -69,600,000 -90,300,000 -39,800,000 -1,300,000 -2,800,000 -48,700,000 -24,600,000 -5,400,000 -24,700,000 -44,600,000 1,100,000 -128,800,000 28,200,000 -42,300,000 26,900,000 9,400,000 -44,100,000 -21,500,000 -23,600,000 18,600,000 16,900,000 -28,700,000 45,800,000 -6,400,000 6,200,000 -21,200,000 -23,500,000 -700,000 -30,300,000 -41,000,000 -9,200,000 -18,800,000 1,700,000 -30,400,000 4,400,000 -6,000,000 -7,200,000 -21,800,000 48,000,000 -42,300,000 2,000,000 -3,600,000 -37,600,000 4,600,000 9,400,000 -23,200,000 -27,200,000 -4,800,000 -48,000,000 -22,800,000 5,300,000 8,600,000 -600,000 -26,100,000 -8,000,000 -28,000,000 -38,200,000 -5,800,000 -13,100,000 -4,000,000 -8,700,000 -400,000 -10,200,000 4,000,000 -3,300,000 -5,100,000   34,000,000 8,000,000 -29,500,000 83,800,000 1,700,000 -15,700,000 21,900,000 
          net cash from operating activities
        180,100,000 -96,000,000 -37,000,000 868,100,000 223,800,000 120,700,000 -157,400,000 894,800,000 242,700,000 -35,200,000 -547,600,000 1,267,600,000 65,600,000 -90,800,000 -633,600,000 1,467,000,000 390,200,000 468,200,000 -249,800,000 1,522,100,000 689,300,000 -87,100,000 -277,100,000 1,105,600,000 224,600,000 292,500,000 -93,500,000 891,800,000 231,000,000 172,200,000 -729,900,000 1,020,800,000 14,100,000 218,700,000 -371,800,000 548,200,000 519,800,000 94,500,000 -649,100,000 929,700,000 280,900,000 260,300,000 -796,900,000 1,050,500,000 176,200,000 168,500,000 -725,700,000 1,023,300,000 161,000,000 183,700,000 -775,100,000 802,500,000 -104,700,000 157,900,000 -498,500,000 717,400,000 157,800,000 200,000,000 -801,700,000 979,100,000 40,400,000 353,300,000 -555,500,000 739,300,000 124,900,000 233,900,000 -557,300,000 719,200,000 34,200,000 399,900,000 -288,000,000 517,900,000 118,900,000 43,800,000 -382,500,000 589,900,000 -69,500,000 16,700,000 -528,100,000      
          cash flows from investing activities:
                                                                                            
          acquisitions, net of cash acquired
        -48,400,000     -2,300,000 -4,000,000         -2,400,000 -1,200,000 -1,300,000   -2,297,800,000 -3,500,000 -8,300,000 -200,000 -8,000,000 -10,000,000 -9,300,000 -3,300,000 -4,100,000 -13,600,000 -7,300,000 -27,000,000 -22,700,000                                             
          capital expenditures
        -26,500,000 -25,800,000 -21,500,000 -34,600,000 -37,300,000 -34,800,000 -35,100,000 -52,200,000 -47,800,000 -46,400,000 -32,900,000 -59,600,000 -46,200,000 -41,600,000 -30,700,000 -71,900,000 -61,300,000 -33,800,000 -28,300,000 -55,500,000 -40,100,000 -27,300,000 -44,600,000 -64,700,000 -53,700,000 -47,300,000 -32,800,000 -71,400,000 -44,200,000 -38,700,000 -22,800,000 -47,200,000 -39,800,000 -44,100,000 -24,800,000 -86,200,000 -51,500,000 -36,000,000 -27,000,000 -80,400,000 -30,900,000 -29,600,000 -20,200,000 -54,300,000 -35,700,000 -32,100,000 -26,600,000 -81,400,000 -44,800,000 -29,000,000 -17,800,000 -69,900,000 -41,100,000 -35,800,000 -22,400,000 -57,000,000 -30,200,000 -36,200,000 -16,900,000 -46,600,000 -21,400,000 -18,900,000 -9,400,000 -23,400,000 -16,000,000 -16,000,000 -11,700,000 -55,600,000 -24,000,000 -26,900,000 -31,900,000 -51,200,000 -29,900,000 -38,500,000 -28,000,000 -58,000,000 -29,300,000 -21,800,000 -18,700,000      
          free cash flows
        153,600,000 -121,800,000 -58,500,000 833,500,000 186,500,000 85,900,000 -192,500,000 842,600,000 194,900,000 -81,600,000 -580,500,000 1,208,000,000 19,400,000 -132,400,000 -664,300,000 1,395,100,000 328,900,000 434,400,000 -278,100,000 1,466,600,000 649,200,000 -114,400,000 -321,700,000 1,040,900,000 170,900,000 245,200,000 -126,300,000 820,400,000 186,800,000 133,500,000 -752,700,000 973,600,000 -25,700,000 174,600,000 -396,600,000 462,000,000 468,300,000 58,500,000 -676,100,000 849,300,000 250,000,000 230,700,000 -817,100,000 996,200,000 140,500,000 136,400,000 -752,300,000 941,900,000 116,200,000 154,700,000 -792,900,000 732,600,000 -145,800,000 122,100,000 -520,900,000 660,400,000 127,600,000 163,800,000 -818,600,000 932,500,000 19,000,000 334,400,000 -564,900,000 715,900,000 108,900,000 217,900,000 -569,000,000 663,600,000 10,200,000 373,000,000 -319,900,000 466,700,000 89,000,000 5,300,000 -410,500,000 531,900,000 -98,800,000 -5,100,000 -546,800,000      
          net proceeds from investments
           800,000   13,400,000   2,600,000 2,100,000 3,900,000 28,800,000                                                                  
          net proceeds from sale of businesses, net of cash sold
        -3,300,000 11,400,000  -4,200,000 -10,800,000 -16,400,000                                                                              
          other investing activities
        200,000 7,800,000 300,000 -1,500,000 500,000 3,100,000 1,500,000 -1,700,000 -800,000 3,600,000 2,200,000 -12,100,000 9,800,000 1,000,000 -700,000 -400,000 1,700,000 -9,500,000 -300,000 -25,800,000 900,000 -4,000,000 -14,900,000 23,700,000 10,900,000 700,000 2,100,000 -5,700,000 -11,300,000 12,500,000 -100,000 -500,000 5,300,000 -9,400,000 -5,100,000 -5,400,000 -100,000 -500,000 -5,200,000   200,000 200,000 200,000 1,500,000 -1,200,000 1,600,000 12,400,000 -300,000 -3,900,000 1,800,000 -900,000 11,000,000 -2,400,000 2,000,000 2,600,000 9,000,000 400,000 -200,000 2,500,000 -500,000 -700,000 -500,000 -3,100,000 5,100,000 -1,200,000 400,000 500,000 800,000 400,000 400,000 400,000 600,000            
          net cash from investing activities
        -26,300,000 -21,300,000 -58,200,000 -19,300,000 -41,400,000 -40,400,000 -50,000,000 118,900,000 -48,600,000 -121,000,000 -34,700,000 -303,900,000 -36,400,000 -61,000,000 -28,800,000 -70,200,000 -72,000,000 -43,300,000 200,000 -83,700,000 -39,200,000 -32,500,000 -60,800,000 -41,000,000 -42,800,000 -47,200,000 -30,700,000 -2,374,900,000 -59,000,000 -34,500,000 -23,100,000 -55,700,000 -44,500,000 -62,800,000 -33,200,000 -95,700,000 -65,200,000 -43,800,000 -59,200,000 -112,300,000 -40,600,000 -29,900,000 -20,000,000 -58,900,000 -42,800,000 -52,000,000 -47,100,000 -96,400,000 -45,700,000 -42,600,000 -39,800,000 19,100,000 -131,700,000 -76,300,000 -21,300,000 -67,900,000 93,600,000 -67,700,000 -16,800,000 -24,900,000 -74,300,000 -22,300,000 13,000,000 -17,900,000 -49,400,000 -29,100,000 125,800,000 -206,000,000 -113,600,000 -37,700,000 -47,000,000 28,600,000 92,700,000 -305,000,000 -84,100,000 132,300,000 210,000,000 -8,700,000 -322,000,000   -30,500,000 358,700,000  
          cash flows from financing activities:
                                                                                            
          common stock dividends
        -120,200,000 -121,100,000 -125,300,000 -122,800,000 -123,200,000 -123,900,000 -126,600,000 -117,900,000 -118,600,000 -119,400,000 -123,200,000 -112,200,000 -113,000,000 -113,800,000 -118,300,000 -106,300,000 -106,200,000 -106,100,000 -109,100,000 -99,500,000 -99,400,000 -99,200,000 -100,000,000 -90,900,000 -90,800,000 -90,800,000 -90,600,000 -80,500,000 -80,400,000 -80,400,000 -80,800,000 -69,100,000 -69,800,000 -70,500,000 -70,900,000 -58,800,000 -59,500,000 -60,200,000 -59,900,000 -48,300,000 -48,700,000 -49,200,000 -49,300,000 -39,100,000 -39,800,000 -39,900,000 -40,200,000 -31,900,000 -31,400,000 -31,700,000 -31,000,000 -25,300,000 -25,800,000 -26,100,000 -26,200,000 -26,700,000 -27,600,000 -28,300,000 -28,500,000                          
          repurchases of common stock
        -69,100,000 -98,300,000 -90,000,000 -100,000,000 -67,700,000 -62,400,000 -131,200,000 -91,000,000 -50,200,000 -77,800,000 -98,500,000 -73,700,000 -84,800,000 -63,100,000             -2,600,000 -59,600,000 -54,900,000 -84,100,000 -101,000,000                                                    
          distributions to non-controlling interests
        -9,600,000 -11,000,000 -7,400,000 -5,200,000 -5,100,000 -4,300,000 -4,300,000 -4,000,000 -5,200,000 -5,400,000 -3,100,000 -2,700,000 -4,400,000 -2,100,000 -3,100,000                                                                      
          tax payments for employee shares withheld
        -100,000 -600,000 -15,400,000 -200,000 -100,000 -300,000 -13,500,000 -500,000 -400,000 -700,000 -57,300,000 -400,000 -300,000 -1,300,000 -38,300,000 -500,000 -1,000,000 -1,600,000 -22,400,000 -100,000 -400,000 -2,700,000 -19,100,000 -100,000 -300,000 -800,000 -21,200,000 -400,000 -800,000 -1,700,000 -26,300,000 -400,000 -600,000 -1,100,000 -36,700,000 -400,000 -200,000 -3,000,000 -19,500,000                                              
          acquisition-related payments
        -5,800,000 -9,900,000 -5,800,000 -300,000 -6,600,000   -100,000 -2,700,000 -9,000,000 -1,100,000 -900,000 -2,400,000 -4,900,000 -1,100,000 -15,700,000 -8,900,000 -3,400,000 -6,000,000 -8,300,000 -13,700,000 -18,600,000 -500,000 -2,300,000   -3,300,000 -14,400,000   -4,600,000 -12,800,000   -4,100,000 -7,500,000   -21,300,000 -4,000,000 -25,400,000 -2,400,000 -900,000 -4,100,000 -5,300,000 -3,300,000 -100,000 -700,000       -1,100,000                             
          repayment of long-term debt
                        -503,200,000 -400,000   -103,100,000 -200,100,000   -99,900,000 -200,000                                                        
          net increase in short-term borrowings
        1,800,000          -12,000,000   -26,000,000 13,900,000 -1,400,000 -25,200,000 18,700,000 -2,900,000 -400,000 -600,000 -245,300,000 247,800,000 -192,900,000 40,800,000 -68,700,000 201,000,000 -12,900,000 -673,900,000 -49,500,000 718,800,000 -426,900,000 276,400,000 -71,300,000 224,800,000                                                  
          other financing activities
        100,000   200,000 -200,000 -1,700,000 100,000 100,000 -600,000 -2,800,000 200,000 -300,000 -300,000 -100,000 -100,000 2,400,000 -3,100,000 -300,000 -10,900,000 -2,000,000 -1,900,000 -6,300,000 -1,400,000   -600,000 -3,300,000 -11,600,000 1,300,000 -1,600,000 -3,200,000 -200,000   800,000 100,000 -100,000 -100,000 -800,000 1,100,000 1,400,000 1,100,000 900,000 800,000 -3,000,000 600,000 -1,800,000 900,000 -200,000 300,000 -1,800,000 900,000 -2,900,000 -1,000,000 67,800,000 2,800,000 6,600,000 -3,800,000 13,400,000 -25,100,000 8,300,000 -4,800,000 -500,000 -300,000 -3,700,000 -2,500,000 21,200,000 -9,900,000 -7,000,000 -1,100,000 4,800,000 700,000            
          net cash from financing activities
        -202,900,000 -223,200,000 -248,000,000 -122,300,000 -219,300,000 -451,200,000 -227,100,000 -244,300,000 -225,500,000 109,800,000 -274,300,000 -246,500,000 -209,800,000 -233,000,000 -210,100,000 -616,400,000 -153,300,000 -101,800,000 -212,700,000 -608,500,000 -115,400,000 -366,700,000 744,400,000 -398,000,000 -253,300,000 -278,400,000 86,700,000 302,600,000 1,209,600,000 -217,200,000 558,200,000 -891,800,000 86,300,000 -263,800,000 64,400,000 -207,400,000 -233,700,000 -67,400,000 -157,900,000 -161,200,000 -151,100,000 -109,400,000 -51,100,000 -169,100,000 -85,500,000 1,400,000 -90,700,000 -256,700,000 -729,600,000 -121,900,000 -104,100,000 571,000,000 -98,600,000 -112,100,000 -229,000,000 -118,300,000 -202,000,000 -175,300,000 -45,400,000 -220,000,000 -11,800,000 -299,700,000 -16,200,000 -4,400,000 -112,600,000 -134,100,000 -15,900,000 -12,700,000 -24,100,000 -31,900,000 -207,100,000 5,600,000 -26,400,000 14,200,000 -30,700,000 -14,300,000 -6,500,000 -81,700,000 -27,200,000   -19,900,000 -4,700,000  
          effect of foreign exchange rate changes on cash, cash equivalents and restricted cash
        13,700,000 40,000,000 23,400,000 -71,800,000 21,600,000 -12,700,000 -20,000,000 42,000,000 -21,300,000 -4,000,000 -9,700,000 60,800,000 -30,400,000 -33,800,000 5,000,000 -5,100,000 -12,400,000 2,500,000 -30,400,000 51,300,000 8,600,000 17,800,000 -46,700,000 5,100,000 -21,400,000 16,700,000 -6,400,000 -12,000,000 -7,800,000 -24,600,000 -2,900,000 16,400,000 -7,800,000 -11,800,000 20,000,000                                                  
          net decrease in cash, cash equivalents and restricted cash
        -35,400,000 -300,500,000 -319,800,000 654,700,000 -15,300,000 -383,600,000 -454,500,000  -52,700,000 -50,400,000 -866,300,000  -211,000,000 -418,600,000 -867,500,000           -16,400,000 -43,900,000   -104,100,000 -197,700,000 89,700,000 48,100,000 -119,700,000 -320,600,000                                                  
          cash, cash equivalents and restricted cash at beginning of period
        2,196,400,000 2,395,100,000 2,553,100,000 3,272,200,000 2,511,500,000 1,195,700,000 677,200,000 797,700,000 1,100,200,000                                                  
          cash, cash equivalents and restricted cash at end of period
        -35,400,000 -300,500,000 1,876,600,000 654,700,000 -15,300,000 -383,600,000 1,940,600,000 811,400,000 -52,700,000 -50,400,000 1,686,800,000 778,000,000 -211,000,000 -418,600,000 2,404,700,000 775,300,000 152,500,000 325,600,000 2,018,800,000 881,200,000 543,300,000 -468,500,000 1,555,500,000 671,700,000 -92,900,000 -16,400,000 633,300,000 -1,192,500,000 1,373,800,000 -104,100,000 600,000,000 89,700,000 48,100,000 -119,700,000 779,600,000                                                  
          net decrease in short-term borrowings
          -4,100,000  15,900,000 -1,200,000 -20,400,000 9,800,000 -7,000,000                                                                            
          non-cash restructuring charges
                       12,000,000 -1,300,000   169,900,000 28,100,000                                                                
          purchase of investments
                                                                                            
          purchase of short-term marketable securities
           -600,000 -400,000                                                                              
          deconsolidation of a subsidiary
                                                                                         
          maturity of short-term marketable securities
                                                                                            
          proceeds from sale of businesses, net of cash sold
                                                                                            
          settlement of senior note
                                                                                            
          proceeds from long-term debt
           100,000         998,100,000 646,200,000     500,000,000                                               600,000 1,000,000 600,000 100,000 100,000 -1,000,000 251,400,000 100,000 1,900,000 1,000,000 
          loss on early extinguishment of debt
                       74,000,000                                            1,200,000                    
          exercise of stock options
                       8,000,000     100,000 3,600,000 600,000 6,400,000 2,100,000 100,000 6,900,000 1,000,000 300,000 3,600,000 8,200,000 400,000 5,900,000 3,900,000 1,700,000 1,200,000 1,500,000 9,100,000 8,200,000 1,200,000 4,500,000 6,200,000 3,800,000 12,100,000 13,400,000 18,100,000  800,000 2,800,000 4,900,000  200,000 3,300,000 8,400,000                          
          early extinguishment of long-term debt
                       -1,066,800,000                                                                  
          net increase in cash, cash equivalents and restricted cash
                       775,300,000   -492,700,000 881,200,000   359,800,000 671,700,000                                                             
          prepaid expenses and other current assets
                                                                     1,200,000 -26,500,000 18,900,000 21,400,000 14,800,000 -22,000,000 -5,100,000 15,500,000 2,100,000 -31,700,000 5,100,000 20,600,000 6,400,000 -22,400,000 -200,000 23,800,000 7,500,000 -38,000,000 -5,300,000 -600,000 10,600,000 -11,300,000 39,300,000 
          changes in assets and liabilities, net of acquisitions and divestitures, provided (using) cash:
                                                                                            
          distributions to noncontrolling interests
                         -3,600,000 -3,300,000 -5,800,000 -4,300,000 -3,800,000 -5,600,000 -9,200,000 -4,300,000 -5,600,000 -2,500,000 -3,500,000 -2,800,000 -6,700,000 -3,900,000 -3,500,000 -6,000,000 -4,900,000 -6,000,000 -2,900,000 -3,600,000 -3,200,000 -4,000,000 -2,800,000 -4,900,000 -7,000,000 -1,200,000 -3,100,000 -1,800,000 -6,400,000 -5,700,000 -4,500,000 -3,400,000 -5,800,000 -1,200,000 -4,800,000 -3,200,000 -7,200,000 -1,800,000 -5,600,000 -6,700,000 -7,600,000 -3,100,000 -3,300,000 -6,100,000 -7,600,000 -4,500,000 -1,100,000 -3,700,000 -10,900,000 -6,500,000                  
          (reversal of) provision for uncollectible receivables
                         -1,000,000 -2,200,000                                                                  
          deferred income tax provision
                             -9,900,000 -11,200,000 11,200,000 1,500,000 28,000,000 -31,000,000         43,100,000        34,400,000 41,800,000   40,900,000        59,200,000                        73,800,000 -53,100,000 55,700,000 -31,800,000  
          depreciation and amortization of fixed assets and intangible assets
                                       32,600,000 42,200,000 41,300,000 41,000,000 42,700,000 39,700,000 39,800,000 38,000,000 40,700,000 38,100,000 39,500,000 38,700,000 41,300,000 41,000,000 40,200,000 40,500,000 39,500,000 40,500,000 39,200,000 38,200,000 38,900,000 37,400,000 36,800,000 34,600,000 41,400,000 36,200,000 37,700,000 35,600,000 36,900,000 37,300,000 36,800,000 37,400,000 43,400,000 42,000,000 42,700,000 41,800,000 42,800,000 44,200,000 43,200,000 43,100,000 49,600,000 43,700,000 40,900,000 43,000,000 46,600,000 41,900,000 42,200,000 42,900,000 47,200,000 40,400,000 40,700,000 40,500,000 129,900,000 
          changes in operating lease right-of-use assets and lease liabilities
                                                                                            
          benefit from uncollectible receivables
                                1,000,000 3,300,000 3,400,000 -2,900,000 3,300,000 4,000,000 2,100,000 900,000 2,700,000 5,900,000 3,100,000 6,000,000 4,400,000 3,200,000 -800,000 5,500,000 4,000,000 2,700,000 -1,600,000 3,400,000 1,800,000 3,800,000 1,200,000 4,000,000 3,600,000 3,800,000 4,500,000 2,700,000 2,400,000 6,700,000 2,700,000 2,000,000 2,200,000 3,500,000 2,100,000 1,900,000 5,600,000 1,100,000                      
          net incomees on sales of businesses
                                7,700,000 3,200,000 8,600,000 11,900,000 5,800,000   3,200,000 8,700,000                                                    
          change in operating lease right-of-use assets and lease liabilities
                                                                                            
          operating lease right-of-use assets
                                 98,000,000 70,000,000                                                          
          operating lease liabilities
                                                                                            
          non-current operating lease liabilities
                                  -62,400,000                                                          
          deferred income tax benefit
                                    8,100,000 -10,200,000 -20,800,000    -13,800,000   23,900,000 -28,100,000    -31,800,000    -22,900,000   35,200,000 -49,500,000  11,900,000 8,100,000 -51,500,000   16,900,000 -53,000,000  -11,900,000 43,100,000 -38,700,000 98,600,000 17,700,000 21,100,000 -48,200,000 48,000,000 10,400,000 47,000,000 -53,500,000 14,300,000 29,000,000 -17,200,000 -48,500,000         21,800,000 
          net incomees (gains) on sales of businesses
                                      24,400,000                                                      
          expenditures billable to clients
                                       400,000 -600,000 41,000,000 -206,300,000 239,000,000 -130,400,000 26,500,000 -137,300,000 -2,700,000 -181,900,000 57,900,000 -111,100,000 276,700,000 46,200,000 -85,400,000 -154,000,000 9,400,000 4,800,000 -49,500,000 -206,200,000 194,600,000 9,800,000 -84,500,000 -193,700,000 276,000,000 -207,500,000 15,500,000 -123,200,000 103,000,000 -64,700,000 -122,000,000 -39,100,000 38,500,000 -98,000,000 62,000,000 17,200,000 274,900,000 -104,400,000 -12,500,000 -88,300,000 118,200,000 -203,800,000 53,000,000 -91,900,000 46,500,000 -4,700,000 -105,600,000 -23,900,000 40,600,000 13,800,000 -55,500,000 -53,200,000  
          repayments of long-term debt
                                       -301,000,000                                                     
          excess tax benefit on share-based compensation
                                               1,200,000 500,000 8,500,000 11,800,000 600,000 1,000,000 3,300,000  1,800,000                                    
          (gains) losses on sales of businesses
                                          -900,000                                                  
          changes in assets and liabilities, net of acquisitions and dispositions, providing (using) cash:
                                                                                            
          repurchase of common stock
                                          -55,000,000 -110,000,000 -80,800,000 -58,800,000 -53,700,000 -112,900,000 -70,300,000 -50,800,000 -51,200,000 -127,000,000 -50,800,000 -52,400,000 -44,900,000 -201,000,000 -100,200,000 -104,800,000 -75,800,000 -149,100,000 -83,300,000 -65,600,000 -52,500,000 -131,800,000 -130,000,000 -128,500,000 -10,500,000                          
          losses on sales of businesses
                                           25,300,000 -3,900,000 3,700,000 16,300,000                                              
          changes in assets and liabilities, net of acquisitions and dispositions, providing cash:
                                                                                            
          net increase in short term bank borrowings
                                           -30,200,000 -82,600,000 81,200,000 -24,600,000 22,900,000 -25,500,000 20,600,000 34,300,000 -18,800,000 8,400,000           -5,500,000 23,300,000   -8,500,000                         
          purchase of long-term debt
                                               -1,000,000   -1,100,000   -1,200,000 -600,000,000 -1,000,000 -200,000 -500,000 -500,000 -400,000 -400,100,000 -600,000       -8,000,000 -72,400,000                    
          proceeds from issuance of long-term debt
                                                                                          
          effect of foreign exchange rate changes on cash and cash equivalents
                                           -39,100,000 -1,900,000 15,900,000 36,700,000 -27,600,000 -63,800,000 -6,400,000 -58,300,000 -57,900,000 -47,000,000 6,200,000 -2,300,000 -32,700,000 -300,000 -51,000,000 -10,100,000 -5,100,000 20,300,000 -40,600,000 19,200,000 -13,500,000 -74,200,000 12,600,000 28,400,000 13,800,000 43,500,000 -30,200,000 -7,700,000 16,700,000                     
          net increase in cash and cash equivalents
                                                                                            
          cash and cash equivalents at beginning of period
                                           1,502,900,000 1,660,600,000 1,636,800,000 2,574,800,000 2,302,700,000 2,675,700,000 2,495,200,000                     
          cash and cash equivalents at end of period
                                           206,000,000 219,000,000 -800,000 673,400,000 628,600,000 25,400,000 114,600,000 734,300,000 764,600,000 900,000 124,100,000 771,000,000 637,500,000 -614,600,000 -31,800,000 1,645,700,000 1,387,500,000 -314,700,000 -71,100,000 1,573,100,000 517,700,000 -24,800,000 -30,400,000 1,840,200,000 748,000,000 -2,200,000 1,100,000 1,928,800,000 733,700,000 1,000,000 118,500,000 1,642,000,000 417,400,000 -141,200,000 339,800,000 1,491,200,000 584,800,000 209,600,000 -246,400,000 1,466,900,000  127,900,000 -71,400,000 1,207,000,000  -235,300,000 37,400,000 1,544,600,000 1,438,500,000 
          net decrease in cash and cash equivalents
                                            219,000,000 -800,000 -829,500,000  25,400,000 114,600,000 -926,300,000  900,000 124,100,000 -865,800,000  -614,600,000 -31,800,000 -929,100,000  -314,700,000 -71,100,000 -729,600,000  -24,800,000 -30,400,000 -835,500,000  -2,200,000 1,100,000 -566,400,000  1,000,000 118,500,000 -465,200,000  -141,200,000 339,800,000 -523,700,000  209,600,000 -246,400,000 -488,800,000          
          non-cash (gain) loss related to early extinguishment of debt
                                                                                           
          proceeds from sales of businesses, investments and fixed assets, net of cash sold
                                               -8,300,000                                             
          net sales (purchases) and maturities of short-term marketable securities
                                                        -800,000 500,000 11,100,000                                  
          preferred stock dividends
                                                       -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -2,900,000 -6,900,000 -6,900,000 -6,900,000 -6,900,000 -6,900,000 -6,900,000 -6,900,000 -6,900,000 -6,900,000 -6,900,000 -6,900,000 -6,900,000 -6,900,000 -6,900,000 -11,900,000 -12,000,000 -11,900,000 -11,200,000 -5,000,000 -5,000,000 -5,000,000 -5,000,000  
          losses (gains) on sales of businesses
                                                                                            
          net purchases and maturities of short-term marketable securities
                                                                                            
          proceeds from sales of businesses and investments, net of cash sold
                                                   200,000 3,500,000    200,000     11,400,000 1,200,000   4,600,000 2,400,000 22,600,000 100,000 800,000 30,100,000     20,300,000 600,000 3,900,000 3,100,000 41,000,000             
          gain on sale of an investment
                                                                                           
          changes in assets and liabilities, net of acquisitions and dispositions, providing cash
                                                                                            
          acquisitions, including deferred payments, net of cash acquired
                                                   -4,900,000 -12,100,000 -28,700,000 -22,100,000 -13,300,000 -13,300,000 -34,900,000 -4,900,000 -89,000,000 -49,500,000 -2,100,000 -12,800,000 -11,700,000 -36,500,000 -2,100,000 1,100,000 -54,000,000 -3,400,000 -5,600,000 -1,200,000 -39,000,000 -18,600,000 -13,600,000 -5,000,000 -74,700,000 -9,200,000 -17,100,000 -28,900,000 -42,200,000 -66,800,000 -13,500,000    -1,700,000 -5,300,000 -30,900,000 -38,900,000 -16,600,000  
          net (purchases) sales and maturities of short-term marketable securities
                                                   -100,000               -2,300,000 1,500,000 -100,000 -1,600,000                      
          net sales and maturities of short-term marketable securities
                                                                          150,700,000                  
          net decrease in short term bank borrowings
                                                      -6,700,000                                      
          net amortization of bond discounts (premiums) and deferred financing costs
                                                         2,600,000 1,400,000 1,500,000                                 
          non-cash loss related to early extinguishment of debt
                                                                                           
          proceeds from the sale of an investment
                                                                                           
          net increase in short-term bank borrowings
                                                        -5,800,000 30,500,000 -11,400,000  17,000,000 24,700,000 3,800,000                 19,300,000 -16,400,000            
          repurchase of preferred stock
                                                                                          
          proceeds from issuance of 4.00% senior notes due 2022
                                                            246,800,000                              
          acquisition related payments
                                                            -1,600,000                                
          net amortization of bond premiums and deferred financing costs
                                                             1,000,000 -1,700,000  -2,300,000 -2,100,000 -1,900,000                          
          net amortization of bond (premiums) discounts and deferred financing costs
                                                                   -1,400,000                         
          proceeds from issuance of 10.00% senior notes due 2017
                                                                                            
          issuance costs and fees
                                                                                          
          net decrease in short-term bank borrowings
                                                                  -5,000,000            -5,300,000    -20,000,000          
          purchases of investments
                                                                           -15,500,000 -15,800,000 -2,300,000 -2,000,000 -8,100,000 -1,300,000 -6,000,000 -9,600,000 -2,300,000 -10,400,000 -19,000,000 -4,700,000 -5,600,000 -15,900,000 -4,900,000 -13,500,000  
          payments of long-term debt
                                                                                  -1,200,000 -1,900,000 -800,000 -2,300,000 -200,000 -254,300,000 -2,200,000 -300,000 -300,000  
          capped call transaction costs
                                                                                            
          proceeds from issuance of 10.0% senior notes due 2017
                                                                                          
          amortization of bond discounts and deferred financing costs
                                                                      -1,000,000 -900,000 -800,000 6,200,000 7,600,000 7,600,000 7,400,000 6,700,000 7,000,000 7,400,000 7,800,000 7,800,000 7,800,000 9,600,000 11,300,000 7,700,000 3,200,000 300,000 3,800,000 2,900,000 2,100,000  
          benefit from (reversal of) bad debt
                                                                         4,700,000 3,900,000                  
          net income on early extinguishment of debt
                                                                                            
          sales and maturities of short-term marketable securities
                                                                           -400,000 3,700,000 100,000 2,200,000              
          purchases of short-term marketable securities
                                                                           -150,300,000 -4,200,000 -3,700,000 -1,700,000 -5,200,000 -139,800,000 -287,400,000 -288,400,000 2,100,000 -150,800,000 -308,700,000 -381,700,000      
          issuance costs
                                                                       -3,400,000                    
          supplemental cash flow information
                                                                                            
          cash paid for interest
                                                                                            
          cash paid for income taxes, net of 55.0, 12.9 and 31.1 of refunds in 2009, 2008 and 2007, respectively
                                                                                            
          adjustments to reconcile net income to net cash provided by operating activities:
                                                                                            
          benefit from bad debt
                                                                                1,900,000 1,400,000 3,800,000 -7,800,000 3,000,000 1,800,000 4,200,000 -7,100,000 13,700,000 7,300,000 3,000,000  
          net sales and maturities (purchases) of short-term marketable securities
                                                                        500,000                    
          effect of exchange rate changes on cash and cash equivalents
                                                                         47,800,000 -17,800,000 -83,100,000 -37,700,000 9,500,000 18,400,000 32,700,000 24,400,000 600,000 8,500,000          
          cash and cash equivalents at beginning of year
                                                                         2,107,200,000 2,014,900,000 1,955,700,000 2,075,900,000 1,550,400,000 2,005,700,000 
          change in assets and liabilities, net of acquisitions and dispositions:
                                                                                            
          repayment of 4.50% convertible senior notes
                                                                           -190,800,000              
          income from discontinued operations, net of tax
                                                                                           
          benefit from (recovery of) bad debt
                                                                                            
          long-lived asset impairment and other charges
                                                                                       97,900,000     
          losses (gains) on sales of businesses and investments
                                                                               -6,000,000             
          income applicable to minority interests, net of tax
                                                                           15,700,000 4,700,000   11,000,000 3,700,000            
          net change in assets and liabilities related to discontinued operations
                                                                                           
          net payments of long-term debt
                                                                                            
          issuance costs and consent fees
                                                                                   -8,800,000 -900,000        
          call spread transactions in connection with elf financing
                                                                                            
          distributions to minority interests
                                                                           -4,300,000 -2,400,000 -4,900,000 -3,000,000 -3,900,000 -3,800,000 -5,800,000 -4,600,000 -3,300,000 -5,900,000 -8,900,000 -6,300,000 -3,900,000 -7,800,000 -6,200,000 -4,700,000  
          cash paid for income taxes, net of 12.9, 31.1 and 41.4 of refunds in 2008, 2007 and 2006 respectively
                                                                                            
          (gains) losses on sales of businesses and investments
                                                                            -300,000 -2,700,000 -900,000              
          (reversal of) benefit from bad debt
                                                                             900,000 -1,300,000              
          loss applicable to minority interests, net of tax
                                                                              -600,000    -400,000          
          (reversal) benefit from bad debt
                                                                                            
          issuance of preferred stock, net of issuance costs
                                                                                            
          cash paid for income taxes, net of 31.1, 41.4 and 34.1 of refunds in 2007, 2006 and 2005 respectively
                                                                                            
          maturities of short-term marketable securities
                                                                                304,600,000 79,100,000 238,400,000 202,100,000 387,900,000 284,400,000 77,400,000     56,800,000 
          gain on sales of investments
                                                                                 -1,000,000 -800,000          
          proceeds from sales of businesses and fixed assets, net of cash sold
                                                                                 1,200,000 3,900,000          
          proceeds from sales of investments
                                                                                 9,700,000 13,100,000 10,800,000 15,200,000 61,300,000 6,500,000 6,700,000 23,300,000 19,800,000 20,600,000 22,900,000 
          consent fees
                                                                                            
          adjustments to reconcile net loss to net cash from operating activities:
                                                                                            
          issuance of common stock, net of issuance costs
                                                                                  1,400,000     3,000,000 -13,500,000 13,400,000 300,000  
          adjustments to reconcile net loss to cash from operating activities:
                                                                                            
          deferred income tax (benefit) provision
                                                                                            
          investment impairments
                                                                                       7,100,000 1,500,000   37,000,000 
          proceeds from the sale of discontinued operations, net of cash sold
                                                                                            
          increase in short-term bank borrowings
                                                                                   20,000,000 12,500,000 10,700,000 -8,900,000 245,100,000 -268,900,000 -20,900,000 8,800,000 34,500,000 
          early participation payment on exchange of 250.0 floating rate notes
                                                                                            
          effect of exchange rates on cash and cash equivalents
                                                                                   -15,700,000 -6,100,000 2,300,000 8,400,000 -900,000 1,300,000 -11,400,000 -19,800,000  
          increase in cash and cash equivalents
                                                                                            
          cash and cash equivalents at end of year
                                                                                            
          cash paid for income taxes, net of 41.4, 34.1 and 47.3 of refunds in 2006, 2005 and 2004, respectively
                                                                                            
          amortization of restricted stock awards and other non-cash compensation
                                                                                    15,000,000 12,800,000 9,300,000  11,400,000 6,000,000 11,800,000  
          deferred income taxes
                                                                                    -13,100,000 -36,400,000 -32,400,000      
          gain on sale of investments
                                                                                    -17,000,000 -18,900,000 -4,500,000  -600,000 -300,000 -13,000,000  
          acquisitions, including deferred payments
                                                                                    -3,700,000        
          proceeds from sales of businesses and fixed assets
                                                                                    1,100,000 3,600,000 900,000 51,000,000 2,900,000 6,100,000 1,800,000 28,200,000 
          call spread transaction costs
                                                                                           
          issuance of common stock
                                                                                            
          decrease in cash and cash equivalents
                                                                                      -868,900,000    -5,800,000  
          equity in net income of unconsolidated affiliates, net of dividends
                                                                                     800,000 300,000      
          income applicable to minority interests
                                                                                     6,200,000 -200,000  4,600,000 3,700,000 1,200,000 13,200,000 
          (gain) loss on sale of businesses and fixed assets
                                                                                            
          loss on interest rate swaps
                                                                                            
          change in assets and liabilities, net of acquisitions:
                                                                                            
          accounts payable and accrued expenses
                                                                                     38,100,000 -781,300,000 324,600,000 -589,500,000 386,100,000 -273,600,000  
          (gain) loss on sale of business
                                                                                      4,100,000      
          gain on interest rate swaps
                                                                                          -12,400,000  
          debt issuance costs and consent fees
                                                                                      -700,000 -300,000 -7,900,000 -3,400,000 -6,300,000  
          adjustments to reconcile net income to cash from (used in) operating activities:
                                                                                            
          equity in (income) loss of unconsolidated affiliates, net of dividends
                                                                                            
          restructuring charges (reversals) — non-cash
                                                                                            
          litigation (reversals) charges
                                                                                            
          (gain) loss on sales of businesses
                                                                                            
          change in assets and liabilities, net of acquisitions and disposals:
                                                                                            
          net cash from operating activities of discontinued operations
                                                                                            
          net cash from investing activities of discontinued operations
                                                                                            
          net cash from financing activities of discontinued operations
                                                                                            
          income from continuing operations
                                                                                            
          adjustments to reconcile income from continuing operations to cash from operating activities:
                                                                                            
          restructuring charges — non-cash
                                                                                            
          net cash from operating activities from continuing operations
                                                                                            
          net cash from investing activities from continuing operations
                                                                                            
          net cash from financing activities from continuing operations
                                                                                            
          net income from operations
                                                                                         14,400,000 -143,800,000  
          adjustments to reconcile net income to cash from operating activities:
                                                                                            
          equity in net income of unconsolidated affiliates
                                                                                         -2,300,000 -500,000  
          dividends from unconsolidated affiliates
                                                                                         2,400,000 600,000  
          adjustments to reconcile net income from continuing operations to cash from operating activities:
                                                                                            
          equity in loss of unconsolidated affiliates
                                                                                            
          litigation charges
                                                                                            
          loss on sale of modem media and tns
                                                                                            
          cash flows from investing activities from continuing operations:
                                                                                            
          cash flows from financing activities from continuing operations:
                                                                                            
          proceeds from termination of interest rate swaps
                                                                                            
          treasury stock transactions
                                                                                            
          net cash from discontinued operations
                                                                                            
          cash flows from operating activities from continuing operations:
                                                                                            
          net income from continuing operations
                                                                                           -607,200,000 
          amortization of restricted stock awards and bond discounts
                                                                                           43,600,000 
          undistributed equity (earnings) losses
                                                                                            
          restructuring charges - non-cash
                                                                                           6,700,000 
          long-lived asset impairments
                                                                                           458,700,000 
          proceeds from sales of discontinued operations, net of cash sold
                                                                                           10,000,000 
          payments of convertible subordinated notes
                                                                                            
          payments of zero-coupon convertible senior notes
                                                                                            
          proceeds from 4.5% convertible senior notes
                                                                                            
          debt issuance costs
                                                                                            
          common stock transactions
                                                                                           1,500,000 
          contributions from minority interests
                                                                                           6,800,000