7Baggers

Equifax Inc
(NYSE:EFX) 

EFX stock logo

Equifax Inc. provides information solutions and human resources business process outsourcing services for businesses, governments, and consumers. The company operates through four segments: U.S. Information Solutions (USIS), Workforce Solutions, International, and Global Consumer Solutions. The USIS...

Founded: 1899
Full Time Employees: 11,000
Sector: Industrials
Industry: Consulting Services

Share this website to your friends
• Market Cap:
• Exchange:
• Shs Outstanding:
• Employees:
• Beta:
• Return on Equity (ROE) ttm:
• Return on Assets (ROA) ttm:
• EPS ttm:
• Book value per Share:
• Cash per Share:
• Current ast per Share:
• P/E ttm:
• P/E forward:
• P/E ttm high:
• P/E ttm low:
• P/S ttm:
• P/B ttm:
• P/FCF ttm:
• PEG ratio:
• Cash Ratio ttm:
• Quick Ratio ttm:
• Current Ratio ttm:
• Gross Mgn ttm:
• EBITDA Mgn ttm:
• Operating Mgn ttm:
• Net Income Mgn ttm:
• Trailing Div yield:
• Forward Div yield:
• Payout Ratio ttm:
• Ex-Dividend date:
• Target Price High:
• Target Price Low:
• Target Price Mean:
• Number of Analysts:
• Debt Ratio ttm:
• Debt to Equity ttm:
• Total Net Debt:
At a glance:
Bull Thesis:
Bear Thesis:
Main Competitors:
Moat:
Income Statements:
Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 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 
                                                                                  
      operating revenue
    1,648,900,000 1,550,600,000 1,544,900,000 1,537,000,000 1,442,000,000 1,419,400,000 1,441,800,000 1,430,500,000 1,389,400,000 1,326,500,000 1,319,100,000 1,317,600,000 1,302,000,000 1,197,900,000 1,244,300,000 1,316,700,000 1,363,200,000 1,253,200,000 1,222,900,000 1,234,800,000 1,213,000,000 1,118,400,000 1,068,300,000 982,800,000 957,900,000 905,800,000 875,700,000 880,000,000 846,100,000 835,300,000 834,200,000 876,900,000 865,700,000 838,400,000 834,800,000 856,700,000 832,200,000 801,100,000 804,100,000 811,300,000 728,300,000 666,300,000 667,400,000 678,100,000 651,800,000 624,600,000 613,400,000 613,900,000 584,500,000 347,600,000 572,000,000 586,900,000 566,500,000 558,100,000 543,900,000 535,800,000 522,700,000 509,700,000 490,400,000 487,100,000 472,600,000 344,375,000 473,800,000 460,700,000 461,300,000   454,500,000 405,100,000 390,000,000 394,600,000 387,700,000 374,000,000 361,300,000 375,300,000 363,400,000 343,400,000  
      yoy
    14.35% 9.24% 7.15% 7.44% 3.79% 7.00% 9.30% 8.57% 6.71% 10.74% 6.01% 0.07% -4.49% -4.41% 1.75% 6.63% 12.38% 12.05% 14.47% 25.64% 26.63% 23.47% 21.99% 11.68% 13.21% 8.44% 4.97% 0.35% -2.26% -0.37% -0.07% 2.36% 4.03% 4.66% 3.82% 5.60% 14.27% 20.23% 20.48% 19.64% 11.74% 6.68% 8.80% 10.46% 11.51% 79.69% 7.24% 4.60% 3.18% -37.72% 5.17% 9.54% 8.38% 9.50% 10.91% 10.00% 10.60% 48.01% 3.50% 5.73% 2.45%   1.36% 13.87%   17.23% 8.32% 7.94% 5.14% 6.69% 8.91%      
      qoq
    6.34% 0.37% 0.51% 6.59% 1.59% -1.55% 0.79% 2.96% 4.74% 0.56% 0.11% 1.20% 8.69% -3.73% -5.50% -3.41% 8.78% 2.48% -0.96% 1.80% 8.46% 4.69% 8.70% 2.60% 5.75% 3.44% -0.49% 4.01% 1.29% 0.13% -4.87% 1.29% 3.26% 0.43% -2.56% 2.94% 3.88% -0.37% -0.89% 11.40% 9.31% -0.16% -1.58% 4.03% 4.35% 1.83% -0.08% 5.03% 68.15% -39.23% -2.54% 3.60% 1.51% 2.61% 1.51% 2.51% 2.55% 3.94% 0.68% 3.07% 37.23% -27.32% 2.84% -0.13%    12.19% 3.87% -1.17% 1.78% 3.66% 3.52% -3.73% 3.27% 5.82%   
      operating expenses:
                                                                                  
      cost of services
    767,100,000 661,200,000 663,200,000 664,600,000 656,700,000 615,000,000 645,200,000 630,900,000 627,700,000 581,600,000 585,200,000 588,000,000 580,400,000 539,200,000 542,500,000 542,100,000 553,400,000 525,600,000 489,000,000 483,000,000 483,300,000 480,900,000 433,200,000 409,300,000 414,100,000 382,800,000 374,500,000 376,900,000 387,500,000 372,200,000 376,700,000 348,600,000 342,800,000 318,800,000 297,300,000 293,700,000 300,800,000 286,300,000 288,000,000 285,800,000 253,300,000 225,000,000 226,500,000 220,800,000 215,100,000 214,600,000 211,000,000 212,300,000 206,800,000 169,400,000 196,800,000 198,200,000 195,100,000 215,800,000 208,500,000 203,600,000 201,200,000 194,200,000 189,100,000 190,900,000 194,300,000 141,650,000 188,200,000 188,300,000 200,300,000   189,900,000 169,300,000 159,900,000 157,900,000 161,800,000 151,100,000      
      gross profit
    881,800,000 889,400,000 881,700,000 872,400,000 785,300,000 804,400,000 796,600,000 799,600,000 761,700,000 744,900,000 733,900,000 729,600,000 721,600,000 658,700,000 701,800,000 774,600,000 809,800,000 727,600,000 733,900,000 751,800,000 729,700,000 637,500,000 635,100,000 573,500,000 543,800,000 523,000,000 501,200,000 503,100,000 458,600,000 463,100,000 457,500,000 528,300,000 522,900,000 519,600,000 537,500,000 563,000,000 531,400,000 514,800,000 516,100,000 525,500,000 475,000,000 441,300,000 440,900,000 457,300,000 436,700,000 410,000,000 402,400,000 401,600,000 377,700,000 178,200,000 375,200,000 388,700,000 371,400,000 342,300,000 335,400,000 332,200,000 321,500,000 315,500,000 301,300,000 296,200,000 278,300,000 202,725,000 285,600,000 272,400,000 261,000,000   264,600,000 235,800,000 230,100,000 236,700,000 225,900,000 222,900,000      
      yoy
    12.29% 10.57% 10.68% 9.10% 3.10% 7.99% 8.54% 9.59% 5.56% 13.09% 4.57% -5.81% -10.89% -9.47% -4.37% 3.03% 10.98% 14.13% 15.56% 31.09% 34.19% 21.89% 26.72% 13.99% 18.58% 12.93% 9.55% -4.77% -12.30% -10.87% -14.88% -6.16% -1.60% 0.93% 4.15% 7.14% 11.87% 16.66% 17.06% 14.91% 8.77% 7.63% 9.57% 13.87% 15.62% 130.08% 7.25% 3.32% 1.70% -47.94% 11.87% 17.01% 15.52% 8.49% 11.32% 12.15% 15.52% 55.63% 5.50% 8.74% 6.63%   2.95% 10.69%   17.13% 5.79%          
      qoq
    -0.85% 0.87% 1.07% 11.09% -2.37% 0.98% -0.38% 4.98% 2.26% 1.50% 0.59% 1.11% 9.55% -6.14% -9.40% -4.35% 11.30% -0.86% -2.38% 3.03% 14.46% 0.38% 10.74% 5.46% 3.98% 4.35% -0.38% 9.70% -0.97% 1.22% -13.40% 1.03% 0.64% -3.33% -4.53% 5.95% 3.22% -0.25% -1.79% 10.63% 7.64% 0.09% -3.59% 4.72% 6.51% 1.89% 0.20% 6.33% 111.95% -52.51% -3.47% 4.66% 8.50% 2.06% 0.96% 3.33% 1.90% 4.71% 1.72% 6.43% 37.28% -29.02% 4.85% 4.37%    12.21% 2.48% -2.79% 4.78% 1.35%       
      gross margin %
    53.48% 57.36% 57.07% 56.76% 54.46% 56.67% 55.25% 55.90% 54.82% 56.16% 55.64% 55.37% 55.42% 54.99% 56.40% 58.83% 59.40% 58.06% 60.01% 60.88% 60.16% 57.00% 59.45% 58.35% 56.77% 57.74% 57.23% 57.17% 54.20% 55.44% 54.84% 60.25% 60.40% 61.98% 64.39% 65.72% 63.85% 64.26% 64.18% 64.77% 65.22% 66.23% 66.06% 67.44% 67.00% 65.64% 65.60% 65.42% 64.62% 51.27% 65.59% 66.23% 65.56% 61.33% 61.67% 62.00% 61.51% 61.90% 61.44% 60.81% 58.89% 58.87% 60.28% 59.13% 56.58% NaN% NaN% 58.22% 58.21% 59.00% 59.98% 58.27% 59.60% 0% 0% 0% 0%  
      selling, general and administrative expenses
    411,000,000 421,000,000 434,100,000 384,200,000 374,900,000 344,800,000 380,400,000 352,600,000 372,600,000 343,400,000 333,100,000 343,100,000 366,100,000 340,400,000 318,000,000 330,200,000 340,300,000 343,200,000 344,200,000 328,400,000 308,800,000 366,600,000 330,000,000 309,900,000 316,000,000 389,000,000 295,500,000 306,800,000 998,900,000 337,900,000 317,500,000 257,500,000 300,500,000 255,200,000 312,200,000 228,400,000 243,300,000 240,000,000 233,400,000 231,600,000 243,100,000 215,500,000 217,200,000 218,700,000 232,900,000 195,000,000 197,800,000 183,500,000 175,400,000 139,100,000 173,400,000 186,500,000 174,500,000 206,500,000 162,800,000 158,300,000 151,100,000 148,600,000 139,200,000 140,500,000 126,500,000 92,600,000 134,000,000 126,900,000 112,400,000   115,200,000 97,400,000 99,400,000 95,700,000 109,000,000 92,600,000 82,700,000 94,500,000 88,800,000 79,000,000  
      depreciation and amortization
    183,100,000 184,200,000 183,300,000 177,400,000 174,600,000 171,500,000 169,100,000 164,800,000 164,400,000 156,400,000 154,400,000 149,600,000 150,100,000 142,300,000 140,900,000 139,800,000 137,100,000 132,200,000 116,500,000 117,400,000 114,300,000 101,500,000 100,700,000 96,800,000 91,900,000 86,900,000 84,100,000 82,500,000 77,600,000 79,100,000 75,900,000 77,200,000 78,200,000 73,600,000 72,400,000 70,500,000 71,300,000 70,900,000 70,600,000 68,200,000 55,700,000 48,900,000 49,400,000 50,100,000 49,600,000 49,800,000 50,900,000 50,700,000 50,400,000 16,200,000 51,800,000 44,100,000 47,900,000 40,600,000 40,500,000 41,200,000 41,400,000 41,200,000 40,500,000 41,100,000 42,700,000 30,050,000 41,400,000 39,700,000 40,900,000   29,600,000 21,400,000 20,800,000 20,400,000 20,500,000 21,100,000 21,700,000 20,500,000 20,100,000 19,900,000  
      total operating expenses
    1,361,200,000 1,266,400,000 1,280,600,000 1,226,200,000 1,206,200,000 1,131,300,000 1,194,700,000 1,148,300,000 1,164,700,000 1,081,400,000 1,072,700,000 1,080,700,000 1,096,600,000 1,021,900,000 1,001,400,000 1,012,100,000 1,030,800,000 1,001,000,000 949,700,000 928,800,000 906,400,000 949,000,000 863,900,000 816,000,000 822,000,000 858,700,000 754,100,000 766,200,000 1,464,000,000 789,200,000 770,100,000 683,300,000 721,500,000 647,600,000 681,900,000 592,600,000 615,400,000 597,200,000 592,000,000 585,600,000 552,100,000 489,400,000 493,100,000 489,600,000 497,600,000 459,400,000 459,700,000 446,500,000 432,600,000 324,700,000 422,000,000 428,800,000 417,500,000 462,900,000 411,800,000 403,100,000 393,700,000 384,000,000 368,800,000 372,500,000 363,500,000 264,300,000 363,600,000 354,900,000 353,600,000   334,700,000 288,100,000 280,100,000 274,000,000 291,300,000 264,800,000      
      operating income
    287,700,000 284,200,000 264,300,000 310,800,000 235,800,000 288,100,000 247,100,000 282,200,000 224,700,000 245,100,000 246,400,000 236,900,000 205,400,000 176,000,000 242,900,000 304,600,000 332,400,000 252,200,000 273,200,000 306,000,000 306,600,000 169,400,000 204,400,000 166,800,000 135,900,000 47,100,000 121,600,000 113,800,000 -617,900,000 46,100,000 64,100,000 193,600,000 144,200,000 190,800,000 152,900,000 264,100,000 216,800,000 203,900,000 212,100,000 225,700,000 176,200,000 176,900,000 174,300,000 188,500,000 154,200,000 165,200,000 153,700,000 167,400,000 151,900,000 22,900,000 150,000,000 158,100,000 149,000,000 95,200,000 132,100,000 132,700,000 129,000,000 125,700,000 121,600,000 114,600,000 109,100,000 80,075,000 110,200,000 105,800,000 107,700,000   119,800,000 117,000,000 109,900,000 120,600,000 96,400,000 109,200,000 106,000,000 107,300,000 106,700,000 102,000,000  
      yoy
    22.01% -1.35% 6.96% 10.13% 4.94% 17.54% 0.28% 19.12% 9.40% 39.26% 1.44% -22.23% -38.21% -30.21% -11.09% -0.46% 8.41% 48.88% 33.66% 83.45% 125.61% 259.66% 68.09% 46.57% -121.99% 2.17% 89.70% -41.22% -528.50% -75.84% -58.08% -26.69% -33.49% -6.42% -27.91% 17.01% 23.04% 15.26% 21.69% 19.73% 14.27% 7.08% 13.40% 12.60% 1.51% 621.40% 2.47% 5.88% 1.95% -75.95% 13.55% 19.14% 15.50% -24.26% 8.63% 15.79% 18.24% 56.98% 10.34% 8.32% 1.30%   -11.69% -7.95%   24.27% 7.14% 3.68% 12.40% -9.65% 7.06%      
      qoq
    1.23% 7.53% -14.96% 31.81% -18.15% 16.59% -12.44% 25.59% -8.32% -0.53% 4.01% 15.34% 16.70% -27.54% -20.26% -8.36% 31.80% -7.69% -10.72% -0.20% 80.99% -17.12% 22.54% 22.74% 188.54% -61.27% 6.85% -118.42% -1440.35% -28.08% -66.89% 34.26% -24.42% 24.79% -42.11% 21.82% 6.33% -3.87% -6.03% 28.09% -0.40% 1.49% -7.53% 22.24% -6.66% 7.48% -8.18% 10.20% 563.32% -84.73% -5.12% 6.11% 56.51% -27.93% -0.45% 2.87% 2.63% 3.37% 6.11% 5.04% 36.25% -27.34% 4.16% -1.76%    2.39% 6.46% -8.87% 25.10% -11.72% 3.02% -1.21% 0.56% 4.61%   
      operating margin %
    17.45% 18.33% 17.11% 20.22% 16.35% 20.30% 17.14% 19.73% 16.17% 18.48% 18.68% 17.98% 15.78% 14.69% 19.52% 23.13% 24.38% 20.12% 22.34% 24.78% 25.28% 15.15% 19.13% 16.97% 14.19% 5.20% 13.89% 12.93% -73.03% 5.52% 7.68% 22.08% 16.66% 22.76% 18.32% 30.83% 26.05% 25.45% 26.38% 27.82% 24.19% 26.55% 26.12% 27.80% 23.66% 26.45% 25.06% 27.27% 25.99% 6.59% 26.22% 26.94% 26.30% 17.06% 24.29% 24.77% 24.68% 24.66% 24.80% 23.53% 23.09% 23.25% 23.26% 22.97% 23.35% NaN% NaN% 26.36% 28.88% 28.18% 30.56% 24.86% 29.20% 29.34% 28.59% 29.36% 29.70%  
      interest expense
    -55,700,000 -54,100,000 -52,200,000 -53,100,000 -52,900,000 -55,700,000 -56,300,000 -57,300,000 -59,700,000 -60,300,000 -62,800,000 -60,700,000 -57,600,000 -54,500,000 -47,100,000 -41,600,000 -39,700,000 -38,500,000 -35,000,000 -34,900,000 -37,200,000 -36,900,000 -37,400,000 -36,600,000 -30,700,000 -29,400,000 -28,000,000 -27,600,000 -26,700,000 -26,500,000 -26,700,000 -26,400,000 -23,900,000 -22,700,000 -21,400,000 -24,600,000 -24,200,000 -24,100,000 -24,300,000 -23,600,000 -20,100,000 -15,700,000 -15,800,000 -16,200,000 -16,100,000 -16,800,000 -17,100,000 -17,400,000 -17,300,000 -2,600,000 -17,500,000 -17,600,000 -17,700,000 -14,300,000 -13,600,000 -13,700,000 -13,800,000 -13,900,000 -13,700,000 -13,700,000 -13,800,000 -10,575,000 -14,000,000 -14,100,000 -14,200,000   -10,400,000   -7,900,000   -6,875,000 -8,600,000 -9,800,000   
      other income
    3,800,000 2,800,000 3,200,000 3,600,000 2,500,000 -6,800,000 3,000,000 -300,000 1,600,000 -2,000,000 7,100,000 15,900,000 4,400,000 19,900,000 23,900,000 1,800,000 11,100,000 -75,500,000 27,200,000 6,000,000 -900,000 -20,900,000 133,400,000 -7,500,000 45,300,000 6,200,000 2,900,000 2,800,000 2,100,000 5,400,000 1,300,000 2,200,000 2,900,000 4,200,000 4,500,000 3,100,000 3,100,000  2,400,000    14,400,000 -13,900,000  3,000,000 3,200,000 500,000 -2,100,000 2,500,000 600,000 3,500,000 100,000 1,100,000 1,900,000 2,200,000 1,400,000 1,000,000 600,000 -9,600,000 300,000 250,000 700,000 800,000 -500,000   1,100,000 200,000 200,000 500,000 15,000,000 500,000 -700,000 4,800,000 2,400,000 2,700,000  
      consolidated income before income taxes
    235,800,000 232,900,000 215,300,000 261,300,000 185,400,000 225,600,000 193,800,000 224,600,000 166,600,000 182,800,000 190,700,000 192,100,000 152,200,000 141,400,000 219,700,000 264,800,000 303,800,000 138,200,000 265,400,000 277,100,000 268,500,000 111,600,000 300,400,000 122,700,000 150,500,000 23,900,000 96,500,000 89,000,000 -642,500,000  38,700,000 169,400,000 123,200,000 172,300,000 136,000,000 242,600,000                  89,550,000 120,400,000 121,200,000 116,600,000                      
      provision for income taxes
    -62,500,000 -56,500,000 -53,800,000 -68,700,000 -51,600,000 -52,200,000 -51,100,000 -59,400,000 -40,500,000 -48,300,000 -26,400,000 -52,700,000 -38,700,000 -32,300,000 -52,800,000 -63,400,000 -81,000,000 -46,375,000 -58,800,000 -61,200,000 -65,600,000  -75,400,000 -26,600,000    -20,700,000  1,700,000 900,000 -23,300,000 -29,400,000 2,200,000 -35,500,000 -75,000,000 -40,300,000 -57,800,000 -55,300,000 -68,300,000 -51,600,000 -54,700,000 -53,200,000 -45,900,000 -48,000,000 -52,600,000 -45,400,000 -56,000,000 -46,200,000 -10,100,000 -47,000,000 -51,700,000 -47,200,000 -33,800,000 -40,300,000 -42,400,000 -42,900,000 -38,300,000 -39,200,000 -54,200,000 -36,300,000 -24,925,000 -33,300,000 -32,700,000 -35,000,000   -39,100,000   -33,300,000   -27,775,000 -40,000,000 -35,400,000   
      consolidated net income
    173,300,000 176,400,000 161,500,000 192,600,000 133,800,000 173,400,000 142,700,000 165,200,000 126,100,000 134,500,000 164,300,000 139,400,000 113,500,000 109,100,000 166,900,000 201,400,000 222,800,000 123,000,000 206,600,000 215,900,000 202,900,000 90,600,000 225,000,000 96,100,000 114,500,000 10,800,000 82,500,000 68,300,000 -554,400,000 26,700,000 39,600,000 146,100,000 93,800,000 174,500,000 100,500,000 167,600,000 155,400,000 124,800,000 134,900,000 133,000,000 102,400,000 113,000,000 119,700,000 112,500,000 89,600,000 98,800,000 94,400,000 94,500,000 86,300,000 -200,000 85,500,000 92,300,000 103,200,000 48,200,000 80,100,000 78,800,000 73,700,000 76,000,000 69,300,000 37,100,000 59,300,000 52,700,000 78,800,000 73,400,000 58,600,000              
      less: net income attributable to noncontrolling interests including redeemable noncontrolling interests
    -1,800,000 -600,000 -1,300,000 -1,300,000 -700,000 600,000 -1,400,000 -1,300,000 -1,200,000 -2,100,000 -2,100,000 -1,100,000 -1,100,000 -900,000 -1,200,000 -800,000 -1,000,000 -900,000 -1,200,000 -800,000 -1,300,000 -3,200,000 -800,000 -200,000 -1,900,000 -1,600,000 -1,400,000 -1,500,000 -1,500,000 -1,100,000 -1,200,000 -1,300,000 -2,900,000 -2,200,000 -4,200,000 -2,200,000 -2,100,000 -1,125,000 -2,100,000 -2,100,000 -300,000 -1,150,000 -1,800,000 -1,500,000 -1,300,000                                  
      net income attributable to equifax
    171,500,000 175,800,000 160,200,000 191,300,000 133,100,000 174,000,000 141,300,000 163,900,000 124,900,000 132,400,000 162,200,000 138,300,000 112,400,000 108,200,000 165,700,000 200,600,000 221,800,000 122,100,000 205,400,000 215,100,000 201,600,000 87,400,000 224,200,000 95,900,000 112,600,000 9,200,000 81,100,000 66,800,000 -555,900,000 25,600,000 38,400,000 144,800,000 90,900,000 172,300,000 96,300,000 165,400,000 153,300,000 123,000,000 132,800,000 130,900,000 102,100,000 111,900,000 117,900,000 111,000,000 88,300,000 98,000,000 92,700,000 92,800,000 83,900,000 -3,000,000 83,500,000 90,500,000 101,100,000 46,300,000 77,900,000 76,400,000 71,500,000 74,400,000 66,700,000 34,500,000 57,300,000 51,125,000 76,500,000 71,300,000 56,700,000              
      yoy
    28.85% 1.03% 13.38% 16.72% 6.57% 31.42% -12.89% 18.51% 11.12% 22.37% -2.11% -31.06% -49.32% -11.38% -19.33% -6.74% 10.02% 39.70% -8.39% 124.30% 79.04% 850.00% 176.45% 43.56% -120.26% -64.06% 111.20% -53.87% -711.55% -85.14% -60.12% -12.45% -40.70% 40.08% -27.48% 26.36% 50.15% 9.92% 12.64% 17.93% 15.63% 14.18% 27.18% 19.61% 5.24% -3366.67% 11.02% 2.54% -17.01% -106.48% 7.19% 18.46% 41.40% -37.77% 16.79% 121.45% 24.78% 45.53% -12.81% -51.61% 1.06%                  
      qoq
    -2.45% 9.74% -16.26% 43.73% -23.51% 23.14% -13.79% 31.22% -5.66% -18.37% 17.28% 23.04% 3.88% -34.70% -17.40% -9.56% 81.65% -40.56% -4.51% 6.70% 130.66% -61.02% 133.79% -14.83% 1123.91% -88.66% 21.41% -112.02% -2271.48% -33.33% -73.48% 59.30% -47.24% 78.92% -41.78% 7.89% 24.63% -7.38% 1.45% 28.21% -8.76% -5.09% 6.22% 25.71% -9.90% 5.72% -0.11% 10.61% -2896.67% -103.59% -7.73% -10.48% 118.36% -40.56% 1.96% 6.85% -3.90% 11.54% 93.33% -39.79% 12.08% -33.17% 7.29% 25.75%               
      net income margin %
    10.40% 11.34% 10.37% 12.45% 9.23% 12.26% 9.80% 11.46% 8.99% 9.98% 12.30% 10.50% 8.63% 9.03% 13.32% 15.24% 16.27% 9.74% 16.80% 17.42% 16.62% 7.81% 20.99% 9.76% 11.75% 1.02% 9.26% 7.59% -65.70% 3.06% 4.60% 16.51% 10.50% 20.55% 11.54% 19.31% 18.42% 15.35% 16.52% 16.13% 14.02% 16.79% 17.67% 16.37% 13.55% 15.69% 15.11% 15.12% 14.35% -0.86% 14.60% 15.42% 17.85% 8.30% 14.32% 14.26% 13.68% 14.60% 13.60% 7.08% 12.12% 14.85% 16.15% 15.48% 12.29% NaN% NaN% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%  
      basic earnings per common share:
                                                         470,000 650,000 640,000 600,000                      
      weighted-average shares used for eps calculation
    120,000,000 123,200,000 123,100,000 124,000,000 124,100,000 123,800,000 123,900,000 123,700,000 123,500,000 122,900,000 123,000,000 122,700,000 122,600,000 122,400,000 122,400,000 122,400,000 122,200,000 121,900,000 121,900,000 121,800,000 121,800,000 121,500,000 121,500,000 121,400,000 121,300,000 120,900,000 121,000,000 120,800,000 120,700,000 120,400,000 120,500,000 120,300,000 120,200,000 120,100,000 120,100,000 120,300,000 120,000,000 119.3 119,500,000 119,200,000 118,800,000 118.7 118,400,000 118,600,000 119,400,000 121,200,000 121,100,000 122,000,000 122,000,000 119,900,000 121,600,000 121,000,000 120,500,000 119,900,000 119,700,000 120,300,000 120,000,000 121,900,000 121,800,000 122,800,000 122,800,000  124,300,000 125,700,000 126,300,000   134,900,000 124,900,000          
      diluted earnings per common share:
                                                         460,000 640,000 620,000 580,000                      
      dividends per common share
    560,000 500,000 500,000 500,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 390,000 247,500 330,000 330,000 330,000 217,500 290,000 290,000 290,000 250,000 250,000 250,000 250,000 60,000 220,000 220,000 220,000 180,000 180,000 180,000 180,000 160,000 160,000 160,000 160,000 30,000 40,000 40,000 40,000   40,000 40,000 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.03  
      benefit for income taxes
                         -34,500,000   -36,000,000 -13,100,000 -14,000,000  88,100,000                                                  
      consolidated income from operations before income taxes
                                 82,825,000       195,700,000 136,400,000 190,200,000 201,300,000 154,000,000 117,225,000 172,900,000 158,400,000 137,600,000                                  
      other expense
                                         -100,000  -800,000 -2,100,000    -500,000                                  
      consolidated income from continuing operations before income taxes
                                                 151,400,000 139,800,000 150,500,000 132,500,000 22,800,000 133,100,000 144,000,000 131,400,000     112,800,000 108,500,000 91,300,000 95,600,000 69,750,000 96,900,000 92,500,000 93,000,000              
      consolidated income from continuing operations
                                                 98,800,000 94,400,000 94,500,000 86,300,000 12,700,000 86,100,000 92,300,000 84,200,000     74,500,000 69,300,000 37,100,000 59,300,000 44,825,000 63,600,000 59,800,000 58,000,000              
      discontinued operations, net of tax
                                                     -12,900,000 -600,000  19,000,000         7,875,000 15,200,000 13,600,000 600,000              
      less: net income attributable to noncontrolling interests
                                                 -800,000 -1,700,000 -1,700,000 -2,400,000 -2,800,000 -2,000,000 -1,800,000 -2,100,000 -1,900,000 -2,200,000 -2,400,000 -2,200,000 -1,600,000 -2,600,000 -2,600,000 -2,000,000 -1,575,000 -2,300,000 -2,100,000 -1,900,000              
      amounts attributable to equifax:
                                                                                  
      net income from continuing operations attributable to equifax
                                                 98,000,000 92,700,000 92,800,000 83,900,000 9,900,000 84,100,000 90,500,000 82,100,000     72,900,000 66,700,000 34,500,000 57,300,000 43,250,000 61,300,000 57,700,000 56,100,000              
      discontinued operations attributable to equifax
                                                     37,500   160,000         62,500 120,000 110,000 10,000              
      minority interests in earnings, net of tax
                                                                       -1,300,000   -1,000,000   -900,000 -1,000,000 -1,300,000   
      income before income taxes
                                                                       109,200,000 108,400,000 100,700,000 112,200,000 102,100,000 100,900,000      
      net income
                                                                       70,100,000 69,000,000 63,100,000 78,900,000 69,600,000 62,900,000 62,800,000 62,500,000 62,600,000 58,600,000  
      basic earnings per common share
                                                                       520,000 550,000 412,500 620,000 540,000 490,000      
      diluted earnings per common share
                                                                       510,000 540,000 0.405 0.61 0.53 0.48      
      shares used in computing basic earnings per share
                                                                         -0.7 126.4 128.1 129 -0.1 129.9 129.8 129.8  
      shares used in computing diluted earnings per share
                                                                         -0.7 128.4 130.4 131.5 -0.4 132.5 132.7 132.4  
      costs and expenses:
                                                                                  
      costs of services
                                                                             110,825,000 153,000,000 147,800,000 142,500,000  
      total costs and expenses
                                                                             191,525,000 268,000,000 256,700,000 241,400,000  
      income from continuing operations before income taxes
                                                                             95,900,000 102,500,000 98,000,000 94,300,000  
      income from continuing operations
                                                                             62,800,000 62,500,000 62,600,000 58,600,000  
      discontinued operations
                                                                                  
      loss from discontinued operations, net of income tax expense of 0.0 in 2005 and 0.1 in 2004
                                                                                  
      per common share
                                                                                  
      asset impairment and related charges
                                                                                  
      loss from discontinued operations, net of income tax benefit of 0.0 in 2005 and 1.9 in 2004
                                                                                  
      loss from discontinued operations, net of income tax benefit of 0.0 in 2005 and 0.0 in 2004
                                                                                  
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 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 
                                                                                     
        assets
                                                                                     
        current assets:
                                                                                     
        cash and cash equivalents
      183,400,000 180,800,000 189,000,000 189,000,000 195,200,000 169,900,000 468,200,000 181,900,000 201,000,000 216,800,000 412,600,000 164,100,000 232,500,000 285,200,000 241,700,000 223,600,000 200,900,000 224,700,000 2,025,500,000 458,100,000 765,900,000 1,684,600,000 1,535,600,000 1,347,400,000 369,900,000 401,300,000 167,500,000 135,800,000 133,200,000 223,600,000 253,400,000 327,400,000 249,300,000 336,400,000 315,400,000 403,900,000 123,200,000 129,300,000 111,500,000 96,800,000 96,800,000 93,300,000 108,500,000 84,200,000 95,000,000 128,300,000 115,000,000 91,700,000 101,400,000 235,900,000 131,900,000 104,900,000 107,600,000 146,800,000 267,200,000 183,100,000 132,700,000 127,700,000 102,000,000 108,700,000 86,900,000 119,400,000 115,600,000 70,100,000 77,100,000    264,200,000 69,600,000 67,800,000 55,700,000 48,200,000 56,400,000 37,500,000 41,500,000 44,700,000 52,900,000 52,100,000 
        trade accounts receivable, net of allowance for doubtful accounts of 21.7 and 20.2 at march 31, 2026 and december 31, 2025, respectively
      1,071,900,000                                                                               
        prepaid expenses
      184,500,000 144,200,000 143,000,000 153,700,000 177,700,000 134,900,000 133,700,000 148,500,000 170,700,000 142,500,000 142,000,000 148,700,000 163,700,000 134,300,000 141,200,000 153,900,000 147,700,000 108,400,000 120,500,000 129,700,000 138,800,000 104,100,000 123,300,000 121,100,000 119,900,000 88,100,000 92,700,000 97,900,000 107,000,000 100,000,000 90,600,000 87,700,000 97,600,000 94,300,000 76,900,000 71,400,000 76,200,000 60,200,000 64,400,000 55,900,000 55,700,000 39,300,000 46,900,000 46,200,000 46,300,000 35,700,000 44,700,000 43,300,000 37,200,000 34,500,000 35,300,000 33,900,000 32,100,000 26,200,000 30,200,000 30,200,000 29,600,000 24,600,000 32,200,000 33,100,000 34,400,000 26,100,000 32,700,000 32,200,000 37,700,000    35,500,000 31,800,000 21,500,000 24,900,000 24,900,000 25,500,000 17,900,000     
        other current assets
      46,900,000 74,500,000 116,100,000 120,200,000 85,000,000 98,200,000 97,600,000 74,800,000 71,700,000 88,800,000 74,900,000 66,700,000 67,900,000 93,300,000 67,000,000 82,900,000 58,800,000 60,200,000 49,700,000 47,700,000 51,500,000 59,000,000 46,800,000 43,900,000 53,700,000 187,900,000 76,200,000 77,500,000 110,500,000 109,600,000 75,600,000 60,200,000 83,000,000 122,900,000 48,700,000 63,000,000 46,100,000 50,100,000 49,500,000 56,500,000 52,900,000 79,200,000 69,000,000 92,600,000 81,000,000 103,900,000 66,700,000 73,900,000 48,700,000 68,300,000 53,100,000 55,300,000 34,700,000 39,700,000 11,400,000 9,800,000 15,000,000 15,600,000 20,200,000 21,700,000 22,400,000 21,100,000 22,600,000 110,200,000 73,500,000    29,900,000 19,000,000 11,100,000 12,900,000 10,400,000 10,000,000 7,300,000 24,900,000 36,900,000 46,400,000 29,800,000 
        total current assets
      1,486,700,000 1,412,200,000 1,463,100,000 1,501,800,000 1,475,700,000 1,360,600,000 1,653,100,000 1,417,600,000 1,449,500,000 1,356,300,000 1,597,400,000 1,315,400,000 1,383,600,000 1,370,500,000 1,294,900,000 1,353,300,000 1,264,200,000 1,120,900,000 2,890,300,000 1,329,500,000 1,665,000,000 2,478,300,000 2,311,600,000 2,104,900,000 1,149,000,000 1,209,400,000 853,000,000 813,800,000 864,700,000 902,300,000 887,500,000 948,800,000 917,400,000 998,400,000 899,300,000 1,000,700,000 705,200,000 672,900,000 661,800,000 627,200,000 630,100,000 561,600,000 582,100,000 591,200,000 585,000,000 605,100,000 550,400,000 554,200,000 524,500,000 648,400,000 526,500,000 512,600,000 484,800,000 529,700,000 605,700,000 517,000,000 475,100,000 452,300,000 430,200,000 436,500,000 427,200,000 429,200,000 437,100,000 473,000,000 446,800,000    625,800,000 372,600,000 345,200,000 342,000,000 322,500,000 318,800,000 280,400,000 304,700,000 308,600,000 331,300,000 299,600,000 
        property and equipment:
                                                                                     
        capitalized internal-use software and system costs
      2,988,400,000 3,098,200,000 3,003,300,000 2,929,900,000 2,863,600,000 2,817,500,000 2,789,700,000 2,698,000,000 2,596,000,000 2,541,000,000 2,428,200,000 2,350,900,000 2,224,800,000 2,139,100,000 1,985,300,000 1,908,700,000 1,842,200,000 1,727,300,000 1,624,200,000 1,557,900,000 1,446,000,000 1,374,500,000 1,254,300,000 1,147,000,000 1,036,700,000 979,400,000 899,900,000 837,100,000 755,100,000 684,100,000 607,300,000 532,500,000 462,900,000 427,900,000 388,000,000 355,700,000 332,100,000 307,000,000 287,400,000 252,500,000 225,900,000 212,500,000 213,300,000 207,000,000 201,800,000 257,300,000 368,100,000 391,600,000 397,200,000 388,000,000 389,600,000 380,100,000 371,900,000 369,900,000 361,600,000 350,400,000 342,800,000 332,200,000 326,500,000 321,200,000 327,400,000 315,900,000 306,200,000 293,600,000 302,400,000    263,900,000 250,800,000 243,800,000 232,800,000 225,300,000 167,400,000 162,400,000     
        data processing equipment and furniture
      239,300,000 239,300,000 244,700,000 246,900,000 232,900,000 229,600,000 257,400,000 253,700,000 248,400,000 247,900,000 286,300,000 284,200,000 285,500,000 281,400,000 306,300,000 302,700,000 305,400,000 299,600,000 301,800,000 303,500,000 297,500,000 299,900,000 329,500,000 328,200,000 322,900,000 325,100,000 346,400,000 342,400,000 338,100,000 344,600,000 326,300,000 309,300,000 318,700,000 306,600,000 294,300,000 293,300,000 280,300,000 273,200,000 265,300,000 264,800,000 263,700,000 247,800,000 226,500,000 212,400,000 201,100,000 203,300,000 200,500,000 192,200,000 189,400,000 188,000,000 199,700,000 193,900,000 189,700,000 198,400,000 203,000,000 196,600,000 190,600,000 183,100,000 180,300,000 176,600,000 189,400,000 181,000,000 180,500,000 171,700,000 180,700,000    159,300,000 137,700,000 132,200,000 133,600,000 131,400,000 127,500,000 124,500,000 284,200,000 287,500,000 303,200,000 309,600,000 
        land, buildings and improvements
      301,000,000 299,600,000 290,100,000 286,200,000 285,100,000 285,000,000 285,900,000 283,900,000 282,500,000 272,900,000 267,100,000 264,900,000 261,900,000 261,600,000 257,300,000 256,500,000 253,500,000 250,300,000 245,400,000 244,900,000 245,400,000 239,100,000 235,900,000 235,000,000 233,600,000 236,300,000 234,800,000 231,200,000 227,000,000 216,100,000 213,200,000 212,300,000 213,800,000 212,500,000 214,500,000 210,400,000 206,600,000 203,800,000 202,700,000 202,300,000 199,900,000 194,600,000 193,400,000 194,200,000 193,800,000 194,800,000 192,900,000 190,700,000 189,900,000 185,200,000 184,300,000 179,800,000 179,600,000 177,000,000 176,400,000 174,700,000 175,400,000 178,400,000 176,500,000 176,000,000 174,900,000 169,500,000 167,900,000 166,100,000 165,300,000    37,500,000 29,600,000 29,700,000 29,200,000 29,200,000 28,800,000 29,100,000 29,500,000 30,900,000 30,100,000 30,200,000 
        total property and equipment
      3,528,700,000 3,637,100,000 3,538,100,000 3,463,000,000 3,381,600,000 3,332,100,000 3,333,000,000 3,235,600,000 3,126,900,000 3,061,800,000 2,981,600,000 2,900,000,000 2,772,200,000 2,682,100,000 2,548,900,000 2,467,900,000 2,401,100,000 2,277,200,000 2,171,400,000 2,106,300,000 1,988,900,000 1,913,500,000 1,819,700,000 1,710,200,000 1,593,200,000 1,540,800,000 1,481,100,000 1,410,700,000 1,320,200,000 1,244,800,000 1,146,800,000 1,054,100,000 995,400,000 947,000,000 896,800,000 859,400,000 819,000,000 784,000,000 755,400,000 719,600,000 689,500,000 654,900,000 633,200,000 613,600,000 596,700,000 655,400,000 761,500,000 774,500,000 776,500,000 761,200,000 773,600,000 753,800,000 741,200,000 745,300,000 741,000,000 721,700,000 708,800,000 693,700,000 683,300,000 673,800,000 691,700,000 666,400,000 654,600,000 631,400,000 648,400,000    460,700,000 418,100,000 405,700,000 395,600,000 385,900,000 323,700,000      
        less accumulated depreciation and amortization
      -1,599,100,000 -1,704,700,000 -1,621,600,000 -1,550,200,000 -1,492,200,000 -1,440,200,000 -1,417,100,000 -1,350,300,000 -1,276,700,000 -1,227,800,000 -1,218,000,000 -1,178,000,000 -1,117,700,000 -1,095,100,000 -1,061,900,000 -1,034,000,000 -1,017,800,000 -961,300,000 -918,500,000 -890,700,000 -814,100,000 -774,100,000 -749,100,000 -693,000,000 -631,100,000 -593,200,000 -576,600,000 -538,200,000 -502,100,000 -480,000,000 -451,600,000 -417,600,000 -404,500,000 -380,000,000 -368,100,000 -361,300,000 -340,000,000 -317,100,000 -312,100,000 -301,400,000 -292,100,000 -288,100,000 -294,200,000 -298,000,000 -292,700,000 -354,800,000 -463,600,000 -482,200,000 -485,500,000 -472,300,000 -487,900,000 -474,500,000 -460,100,000 -461,600,000 -454,800,000 -433,000,000 -417,400,000 -400,800,000 -387,300,000 -372,900,000 -385,300,000 -368,000,000 -354,400,000 -330,500,000 -338,900,000    -273,000,000 -255,700,000  -239,000,000 -227,600,000       
        goodwill
      6,790,900,000 6,745,700,000 6,664,700,000 6,655,200,000 6,590,500,000 6,547,800,000 6,730,000,000 6,746,500,000 6,761,300,000 6,829,900,000 6,730,800,000 6,401,200,000 6,396,300,000 6,383,900,000 6,304,300,000 6,238,700,000 6,378,100,000 6,258,100,000 5,169,200,000 5,085,100,000 5,089,300,000 4,495,800,000 4,366,000,000 4,322,900,000 4,157,400,000 4,308,300,000 4,227,300,000 4,282,500,000 4,170,200,000 4,129,700,000 4,162,800,000 4,135,900,000 4,221,400,000 4,184,000,000 4,178,400,000 4,063,900,000 4,057,500,000 3,974,300,000 4,071,500,000 3,971,600,000 4,022,300,000 2,571,000,000 2,581,000,000 2,600,400,000 2,587,400,000 2,606,800,000 2,624,600,000 2,646,000,000 2,634,600,000 2,395,100,000 2,356,000,000 2,248,300,000 2,253,500,000 2,290,400,000 1,974,500,000 1,961,300,000 1,969,000,000 1,961,200,000 1,953,900,000 1,919,100,000 1,946,100,000 1,914,700,000 1,871,200,000 1,855,400,000 1,916,200,000    1,778,500,000 847,200,000 842,000,000 808,500,000 804,800,000   832,700,000 804,200,000 796,700,000 747,500,000 
        indefinite-lived intangible assets
      94,800,000 94,800,000 94,700,000 94,800,000 94,700,000 94,700,000 94,800,000 94,800,000 94,800,000 94,800,000 95,100,000 94,900,000 94,800,000 94,800,000 94,800,000 94,900,000 95,000,000 94,900,000 95,000,000 95,200,000 95,200,000 94,900,000 94,800,000 94,800,000 94,700,000 94,900,000 94,800,000 94,900,000 94,800,000 94,800,000 94,900,000 94,800,000 94,900,000 95,000,000 95,000,000 94,900,000 94,800,000 94,800,000 94,900,000 94,900,000 94,900,000 94,700,000 94,800,000 95,000,000 95,000,000 95,200,000 95,300,000 95,500,000 95,300,000 95,500,000 95,600,000 254,300,000 254,400,000 254,500,000 95,700,000 95,600,000 95,700,000 95,600,000 95,600,000 95,700,000 95,700,000 95,600,000 95,600,000 95,500,000 95,600,000    95,500,000 95,200,000 95,200,000 95,300,000 95,300,000       
        purchased intangible assets
      1,283,200,000 1,331,300,000 1,368,500,000 1,425,500,000 1,474,000,000 1,521,000,000 1,632,100,000 1,690,300,000 1,773,500,000 1,858,800,000 1,903,900,000 1,699,100,000 1,759,900,000 1,818,500,000 1,857,400,000 1,827,400,000 1,907,800,000 1,898,000,000 1,271,600,000 1,221,900,000 1,265,500,000 997,800,000 1,001,400,000 1,012,700,000 1,000,600,000 1,044,600,000 1,052,000,000 1,104,100,000 1,083,600,000 1,099,200,000 1,132,800,000 1,154,900,000 1,219,200,000 1,247,000,000 1,276,800,000 1,272,700,000 1,312,300,000 1,323,800,000 1,406,400,000 1,404,900,000 1,471,800,000 827,900,000 859,700,000 895,500,000 922,700,000 953,900,000 991,800,000 1,030,600,000 1,060,000,000 973,200,000 966,300,000 918,400,000 945,700,000 987,700,000 487,600,000 505,900,000 528,900,000 550,200,000 567,400,000 559,800,000 586,600,000 593,900,000 588,900,000 610,500,000 645,700,000    801,000,000 238,300,000 242,200,000 242,700,000 250,200,000 255,300,000 263,400,000 332,000,000 315,200,000 304,300,000 281,300,000 
        other assets
      356,800,000 347,800,000 324,300,000 327,800,000 330,500,000 343,400,000 318,400,000 317,800,000 322,000,000 306,200,000 258,100,000 305,300,000 294,800,000 293,200,000 269,600,000 273,000,000 363,300,000 353,100,000 404,300,000 393,000,000 379,600,000 405,600,000 405,400,000 280,300,000 259,000,000 304,200,000 299,100,000 305,700,000 304,300,000 162,400,000 160,800,000 146,000,000 152,300,000 142,000,000 137,500,000 128,000,000 140,200,000 131,300,000 128,700,000 124,000,000 116,400,000 87,000,000 84,800,000 87,800,000 100,900,000 112,600,000 147,100,000 147,700,000 144,700,000 138,800,000 160,300,000 160,700,000 167,700,000 165,100,000 156,200,000 152,600,000 158,300,000 156,400,000 169,400,000 177,300,000 106,800,000 101,800,000 107,000,000 96,800,000 91,800,000    67,400,000 60,300,000 56,400,000 59,100,000 61,100,000 82,200,000 80,800,000 105,600,000 106,500,000 101,200,000 87,000,000 
        total assets
      11,942,000,000 11,864,200,000 11,831,800,000 11,917,900,000 11,854,800,000 11,759,400,000 12,344,300,000 12,152,300,000 12,251,300,000 12,280,000,000 12,348,900,000 11,537,900,000 11,583,900,000 11,547,900,000 11,308,000,000 11,221,200,000 11,391,700,000 11,040,900,000 11,083,300,000 9,340,300,000 9,669,400,000 9,611,800,000 9,249,800,000 8,832,800,000 7,622,800,000 7,909,000,000 7,430,700,000 7,473,500,000 7,335,700,000 7,153,200,000 7,134,000,000 7,116,900,000 7,196,100,000 7,233,400,000 7,115,700,000 7,058,300,000 6,789,000,000 6,664,000,000 6,806,600,000 6,640,800,000 6,732,900,000 4,509,000,000 4,541,400,000 4,585,500,000 4,595,000,000 4,674,200,000 4,707,100,000 4,766,300,000 4,750,100,000 4,539,900,000 4,390,400,000 4,373,600,000 4,387,200,000 4,511,100,000 3,605,900,000 3,521,100,000 3,518,400,000 3,508,600,000 3,512,500,000 3,489,300,000 3,468,800,000 3,433,600,000 3,400,000,000 3,432,100,000 3,505,600,000    3,613,700,000 1,831,900,000 1,790,600,000 1,894,100,000 1,883,700,000 1,879,000,000 1,831,500,000     
        liabilities and equity
                                                                                     
        current liabilities:
                                                                                     
        short-term debt and current maturities of long-term debt
      1,252,500,000 1,038,000,000 759,300,000 847,000,000 639,700,000 687,700,000 750,500,000 769,600,000 880,000,000 963,400,000 501,000,000 169,100,000 815,100,000 967,200,000 1,062,900,000 1,611,700,000 1,342,100,000 824,800,000 500,600,000 600,700,000 1,100,600,000 1,101,100,000 1,102,100,000 503,700,000 3,100,000 3,100,000 372,000,000 32,300,000 69,700,000 4,900,000 3,100,000 4,000,000 888,500,000 965,300,000 667,800,000 794,200,000 631,800,000  706,700,000 447,500,000 1,185,400,000  186,800,000 335,100,000 377,500,000  408,900,000 409,800,000 488,400,000  16,400,000 76,500,000 176,700,000  16,900,000                         
        accounts payable
      158,400,000 206,400,000 156,200,000 172,100,000 172,300,000 138,200,000 152,800,000 201,900,000 198,100,000 197,600,000 190,700,000 148,300,000 146,400,000 250,800,000 172,900,000 190,400,000 187,100,000 211,600,000 192,500,000 171,300,000 173,000,000 159,100,000 159,500,000 149,400,000 170,900,000 148,300,000 135,400,000 156,900,000 170,700,000 175,700,000 139,600,000 121,400,000 106,700,000 110,300,000 82,500,000 66,500,000 79,600,000 81,000,000 46,000,000 43,400,000 55,900,000 40,600,000 43,400,000 35,800,000 42,100,000 20,300,000 35,100,000 40,900,000 27,500,000 19,900,000 19,900,000 17,800,000 28,200,000 25,100,000 28,600,000 30,200,000 23,100,000 27,500,000 21,900,000 26,700,000 22,400,000 24,600,000 19,700,000 26,200,000 26,000,000    33,900,000 21,400,000 23,500,000 21,300,000 16,800,000 21,900,000 5,900,000 5,100,000 6,500,000 7,000,000 9,700,000 
        accrued expenses
      379,000,000 276,300,000 298,700,000 269,700,000 281,400,000 251,100,000 263,000,000 238,400,000 306,200,000 245,100,000 267,100,000 271,100,000 282,900,000 229,000,000 221,500,000 224,600,000 264,500,000 237,500,000 213,900,000 219,100,000 224,100,000 251,800,000 186,400,000 178,000,000 180,900,000 163,500,000 184,400,000 213,400,000 217,600,000 213,200,000 179,800,000 171,600,000 181,000,000 160,900,000 135,700,000 127,000,000 133,700,000 149,300,000 136,600,000 129,900,000 155,600,000 112,700,000 116,500,000 111,500,000 102,900,000 85,500,000 89,700,000 98,000,000 102,000,000 95,400,000 82,600,000 83,800,000 80,000,000 84,900,000 72,500,000 64,100,000 63,900,000 56,300,000 65,700,000 62,300,000 58,700,000 61,900,000 64,700,000 62,600,000 62,600,000    69,200,000 59,500,000 62,000,000 50,100,000 51,400,000 48,500,000 54,000,000     
        accrued salaries and bonuses
      142,500,000 286,100,000 245,400,000 159,400,000 124,200,000 215,800,000 206,100,000 144,600,000 113,500,000 168,700,000 173,700,000 128,800,000 116,300,000 138,700,000 159,500,000 158,700,000 117,300,000 257,900,000 222,100,000 182,000,000 111,200,000 250,300,000 207,100,000 156,900,000 86,900,000 156,100,000 114,600,000 98,600,000 64,400,000 131,000,000 96,500,000 94,400,000 62,000,000 119,400,000 92,900,000 94,400,000 59,300,000 158,800,000 123,100,000 101,200,000 68,400,000 139,200,000 121,700,000 86,300,000 59,800,000 101,900,000 75,500,000 54,100,000 32,000,000 90,200,000 72,800,000 61,900,000 32,500,000 104,700,000 79,500,000 61,200,000 33,100,000 79,200,000 53,400,000 38,100,000 30,900,000 71,900,000 56,500,000 37,300,000 28,700,000    34,400,000 24,600,000 41,900,000 40,700,000 26,100,000 21,700,000 40,700,000    28,800,000 
        deferred revenue
      106,300,000 101,200,000 110,500,000 112,600,000 136,000,000 115,500,000 111,700,000 104,600,000 113,200,000 109,500,000 115,200,000 109,700,000 134,900,000 132,900,000 107,200,000 109,400,000 127,700,000 121,300,000 108,100,000 110,200,000 117,100,000 108,300,000 103,500,000 98,600,000 111,100,000 104,000,000 97,900,000 97,100,000 107,800,000 98,000,000 104,900,000 101,500,000 110,700,000 108,400,000 117,400,000 104,700,000 113,500,000 110,700,000 112,200,000 98,600,000 108,000,000 96,800,000 79,700,000 74,100,000 76,000,000 73,400,000 67,000,000 68,000,000 66,600,000 61,800,000 57,400,000 57,100,000 58,900,000 57,900,000 54,100,000 54,300,000 56,800,000 55,800,000 50,500,000 52,600,000 59,500,000 58,700,000 56,500,000 62,900,000 68,600,000    72,400,000 67,400,000 62,700,000 62,300,000 63,900,000 58,400,000 49,200,000 4,100,000 7,800,000 8,300,000 9,800,000 
        other current liabilities
      412,000,000 427,400,000 413,400,000 384,700,000 377,300,000 403,200,000 390,300,000 327,800,000 362,800,000 334,700,000 334,100,000 265,200,000 296,500,000 296,600,000 294,700,000 338,400,000 304,700,000 638,200,000 649,700,000 591,900,000 615,700,000 612,500,000 632,400,000 569,800,000 590,900,000 784,100,000 587,500,000 899,600,000 892,800,000 204,000,000 220,300,000 184,700,000 190,000,000 209,200,000 240,000,000 156,600,000 183,400,000 174,400,000 173,100,000 141,300,000 156,100,000 165,200,000 142,600,000 141,700,000 132,500,000 161,600,000 89,900,000 89,000,000 78,100,000 98,700,000 83,300,000 78,700,000 73,400,000 90,600,000 73,900,000 67,000,000 79,000,000 96,800,000 85,000,000 101,400,000 91,300,000 81,700,000 86,900,000 93,200,000 86,300,000    79,500,000 49,200,000 62,000,000 54,900,000 38,800,000 40,000,000 52,400,000 202,400,000 186,500,000 195,000,000 162,400,000 
        total current liabilities
      2,450,700,000 2,335,400,000 1,983,500,000 1,945,500,000 1,730,900,000 1,811,500,000 1,874,400,000 1,786,900,000 1,973,800,000 2,019,000,000 1,581,800,000 1,092,200,000 1,792,100,000 2,015,200,000 2,018,700,000 2,633,200,000 2,343,400,000 2,291,300,000 1,886,900,000 1,875,200,000 2,341,700,000 2,483,100,000 2,391,000,000 1,656,400,000 1,143,800,000 1,359,100,000 1,491,800,000 1,497,900,000 1,523,000,000 826,800,000 744,200,000 677,600,000 1,538,900,000 1,673,500,000 1,336,300,000 1,343,400,000 1,201,300,000 1,259,600,000 1,297,700,000 961,900,000 1,729,400,000 603,800,000 690,700,000 784,500,000 790,800,000 823,100,000 766,100,000 759,800,000 794,600,000 662,500,000 332,400,000 375,800,000 449,700,000 646,500,000 325,500,000 293,800,000 272,900,000 362,800,000 344,200,000 298,700,000 303,500,000 319,500,000 305,300,000 369,700,000 429,400,000    716,600,000 566,400,000 582,100,000 321,000,000 312,600,000 312,000,000 294,500,000 296,300,000 456,900,000 519,700,000 456,900,000 
        long-term debt
      4,055,600,000 4,055,300,000 4,053,800,000 4,051,000,000 4,324,400,000 4,322,800,000 4,721,100,000 4,742,700,000 4,745,300,000 4,747,800,000 5,500,400,000 5,503,000,000 4,987,900,000 4,820,100,000 4,819,200,000 4,073,500,000 4,471,900,000 4,470,100,000 4,969,400,000 3,280,900,000 3,279,100,000 3,277,300,000 3,275,300,000 3,872,100,000 3,505,100,000 3,379,500,000 2,834,700,000 2,833,300,000 2,656,900,000 2,630,600,000 2,629,400,000 2,628,400,000 1,739,600,000 1,739,000,000 2,038,700,000 2,038,100,000 2,037,400,000 2,086,800,000 2,136,300,000 2,498,700,000 1,883,800,000 1,145,900,000 1,145,900,000 1,145,800,000 1,145,800,000 1,145,700,000 1,145,700,000 1,145,600,000 1,145,600,000 1,145,500,000 1,427,800,000 1,429,100,000 1,445,600,000 1,447,400,000 951,400,000 951,800,000 965,300,000 966,000,000 967,800,000 963,900,000 974,800,000 978,900,000 986,400,000 979,400,000 990,600,000    778,600,000 148,900,000 173,900,000 416,900,000 433,800,000 468,800,000 463,800,000 518,800,000 398,700,000 398,700,000 398,500,000 
        deferred income tax liabilities
      401,900,000 390,800,000 376,400,000 339,100,000 342,600,000 351,600,000 342,500,000 426,600,000 454,100,000 474,900,000 468,800,000 460,500,000 451,600,000 460,300,000 419,700,000 395,400,000 411,800,000 358,200,000 372,600,000 378,300,000 380,700,000 332,300,000 339,900,000 287,900,000 263,400,000 248,000,000 250,300,000 249,900,000 229,300,000 316,200,000 298,600,000 293,200,000 304,900,000 305,100,000 303,500,000 325,400,000 330,300,000 325,400,000 358,200,000 365,900,000 364,400,000 205,500,000 219,900,000 226,400,000 244,100,000 241,500,000 293,700,000 290,500,000 287,200,000 263,700,000 211,400,000 220,900,000 220,800,000 227,700,000 228,600,000 228,700,000 230,000,000 227,800,000 250,700,000 252,500,000 250,200,000 244,200,000 241,800,000 236,500,000 248,200,000    267,100,000 67,600,000 70,800,000 135,300,000 129,800,000 127,400,000 126,100,000 78,900,000 63,500,000 58,800,000 38,600,000 
        long-term pension and other postretirement benefit liabilities
      102,500,000 103,400,000 104,400,000 105,200,000 106,100,000 106,700,000 95,200,000 95,800,000 97,700,000 100,100,000 97,700,000 97,400,000 98,000,000 100,400,000 104,000,000 121,300,000 124,700,000 130,100,000 114,300,000 122,400,000 126,600,000 130,700,000 106,100,000 110,600,000 114,300,000 118,900,000 130,600,000 134,400,000 136,800,000 139,300,000 135,700,000 153,600,000 172,400,000 175,800,000 175,600,000 178,300,000 181,000,000 184,400,000 141,200,000 143,200,000 144,700,000 146,400,000 165,100,000 168,100,000 169,900,000 173,000,000 73,300,000 72,600,000 71,800,000 72,400,000 171,400,000 174,500,000 173,100,000 176,300,000 163,300,000 167,900,000 172,800,000 176,400,000 109,600,000 113,300,000 116,400,000 129,000,000 84,600,000 117,300,000 119,900,000    60,700,000 60,100,000 65,300,000         
        other long-term liabilities
      248,500,000 241,100,000 237,900,000 241,300,000 238,300,000 247,200,000 264,500,000 266,700,000 268,200,000 250,700,000 215,600,000 176,500,000 172,100,000 178,600,000 170,800,000 176,800,000 188,800,000 190,000,000 185,000,000 184,900,000 184,300,000 178,100,000 170,700,000 171,500,000 166,400,000 180,600,000 164,200,000 170,100,000 178,800,000 84,600,000 84,600,000 84,400,000 103,400,000 101,000,000 95,900,000 91,700,000 86,800,000 86,500,000 85,800,000 87,700,000 77,800,000 57,000,000 52,300,000 54,100,000 54,700,000 56,300,000 57,300,000 56,600,000 55,400,000 54,800,000 54,000,000 53,300,000 53,500,000 54,000,000 53,900,000 51,000,000 52,800,000 53,500,000 56,100,000 58,300,000 54,100,000 53,600,000 53,500,000 50,300,000 54,300,000    63,500,000 61,300,000 60,400,000 102,800,000 114,800,000 113,400,000 126,800,000 117,200,000 122,400,000 119,400,000 129,800,000 
        total liabilities
      7,259,200,000 7,126,000,000 6,756,000,000 6,682,100,000 6,742,300,000 6,839,800,000 7,297,700,000 7,318,700,000 7,539,100,000 7,592,500,000 7,864,300,000 7,329,600,000 7,501,700,000 7,574,600,000 7,532,400,000 7,400,200,000 7,540,600,000 7,439,700,000 7,528,200,000 5,841,700,000 6,312,400,000 6,401,500,000 6,283,000,000 6,098,500,000 5,193,000,000 5,286,100,000 4,871,600,000 4,885,600,000 4,724,800,000 3,997,500,000 3,892,500,000 3,837,200,000 3,859,200,000 3,994,400,000 3,950,000,000 3,976,900,000 3,836,800,000 3,942,700,000 4,019,200,000 4,057,400,000 4,200,100,000 2,158,600,000 2,273,900,000 2,378,900,000 2,405,300,000 2,439,600,000 2,336,100,000 2,325,100,000 2,354,600,000 2,198,900,000 2,197,000,000 2,253,600,000 2,342,700,000 2,551,900,000 1,722,700,000 1,693,200,000 1,693,800,000 1,786,500,000 1,728,400,000 1,686,700,000 1,699,000,000 1,725,200,000 1,671,600,000 1,753,200,000 1,842,400,000    1,886,500,000 904,300,000 952,500,000 976,000,000 991,000,000 1,021,600,000 1,011,200,000 1,015,300,000 1,049,300,000 1,104,900,000 1,033,600,000 
        commitments and contingencies
                                                                                     
        redeemable noncontrolling interests
      120,400,000 114,400,000 118,600,000 116,100,000 112,700,000 105,200,000 120,500,000 120,800,000 131,600,000 135,100,000 175,500,000                                                                     
        equifax shareholders' equity:
                                                                                     
        preferred stock, 0.01 par value: authorized shares - 10.0; issued shares - none
                                                                                     
        common stock
      236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000  236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000 236,600,000   236,600,000  236,600,000 236,600,000    234,700,000 233,100,000 232,900,000  232,400,000 232,000,000 231,500,000    227,500,000 
        paid-in capital
      2,064,000,000 2,023,400,000 2,003,200,000 1,975,300,000 1,953,000,000 1,915,200,000 1,897,100,000 1,856,800,000 1,824,700,000 1,761,300,000 1,736,600,000 1,650,500,000 1,631,100,000 1,594,200,000 1,580,100,000 1,563,200,000 1,548,800,000 1,536,700,000 1,517,600,000 1,506,800,000 1,489,500,000 1,470,700,000 1,454,100,000 1,447,800,000 1,431,700,000 1,405,100,000 1,392,600,000 1,381,500,000 1,369,400,000 1,356,600,000 1,347,400,000 1,339,800,000 1,336,600,000 1,332,700,000 1,335,000,000 1,325,100,000 1,322,700,000 1,313,300,000 1,304,400,000 1,288,400,000 1,273,400,000 1,260,500,000 1,252,600,000 1,240,100,000 1,230,800,000 1,201,700,000 1,209,000,000 1,197,700,000 1,190,000,000 1,174,600,000 1,166,800,000 1,156,400,000 1,149,600,000 1,139,600,000 1,131,600,000 1,125,700,000 1,127,000,000 1,118,000,000 1,112,100,000 1,110,600,000 1,104,200,000 1,105,800,000 1,103,900,000 1,101,000,000 1,097,300,000    985,800,000 625,200,000 609,200,000 599,900,000 587,500,000 574,600,000 559,000,000 539,200,000 508,400,000 482,200,000 466,900,000 
        retained earnings
      6,549,200,000 6,445,100,000 6,330,300,000 6,231,900,000 6,103,000,000 6,018,600,000 5,893,200,000 5,800,400,000 5,685,000,000 5,608,600,000 5,524,500,000 5,410,500,000 5,320,300,000 5,256,000,000 5,195,800,000 5,078,100,000 4,925,500,000 4,751,600,000 4,677,400,000 4,505,700,000 4,342,000,000 4,185,400,000 4,423,100,000 4,248,000,000 4,196,900,000 4,131,800,000 4,170,400,000 4,135,500,000 4,115,400,000 4,717,800,000 4,740,100,000 4,748,300,000 4,653,100,000 4,600,600,000 4,424,700,000 4,376,300,000 4,255,900,000 4,153,200,000 4,081,900,000 3,988,300,000 3,896,200,000 3,834,400,000 3,758,500,000 3,676,100,000 3,600,100,000 3,554,800,000 3,486,900,000 3,424,400,000 3,362,300,000 3,309,200,000 3,259,400,000 3,202,800,000 3,139,100,000 3,064,600,000 3,039,900,000 2,983,600,000 2,929,100,000 2,879,200,000 2,824,500,000 2,777,600,000 2,763,100,000 2,725,700,000 2,683,500,000 2,612,100,000 2,545,800,000    1,907,400,000 1,842,500,000 1,778,600,000 1,720,700,000 1,647,000,000 1,582,700,000 1,525,100,000 1,467,700,000 1,410,600,000 1,353,400,000 1,298,800,000 
        accumulated other comprehensive loss
      -462,200,000 -517,100,000 -551,300,000 -559,800,000 -657,300,000 -722,700,000 -465,100,000 -544,300,000 -526,500,000 -431,200,000 -563,900,000 -445,900,000 -461,100,000 -473,700,000 -596,200,000 -414,400,000 -217,700,000 -295,400,000 -255,700,000 -156,800,000 -161,300,000 -171,400,000 -628,500,000 -681,700,000 -918,900,000 -631,600,000 -717,500,000 -640,000,000 -585,900,000 -626,300,000 -561,400,000 -522,000,000 -366,800,000 -412,000,000 -311,800,000 -405,500,000 -414,400,000 -528,900,000 -363,300,000 -447,800,000 -384,000,000 -484,800,000 -477,100,000 -448,200,000 -469,800,000 -435,400,000 -333,900,000 -299,500,000 -316,600,000 -312,600,000 -370,700,000 -379,800,000 -368,600,000 -362,000,000 -373,000,000 -390,900,000 -373,500,000 -391,800,000 -321,300,000 -295,900,000 -331,300,000 -344,500,000 -309,700,000 -332,200,000 -330,100,000    -204,200,000 -224,300,000  -134,000,000 -138,300,000 -149,000,000 -157,800,000 -251,300,000 -266,700,000   
        treasury stock
      -3,841,000,000 -3,577,800,000 -3,074,400,000 -2,774,600,000 -2,648,200,000 -2,644,900,000 -2,646,900,000 -2,647,600,000 -2,652,400,000 -2,635,300,000 -2,634,600,000 -2,654,600,000 -2,657,000,000 -2,650,700,000 -2,651,400,000 -2,652,600,000 -2,653,200,000 -2,639,200,000 -2,630,800,000 -2,625,900,000 -2,582,900,000 -2,547,000,000 -2,550,400,000 -2,550,700,000 -2,553,900,000 -2,557,400,000 -2,560,400,000 -2,564,300,000 -2,567,900,000 -2,571,000,000 -2,572,300,000 -2,574,200,000 -2,578,900,000 -2,577,600,000 -2,578,200,000 -2,505,600,000 -2,506,800,000 -2,505,600,000 -2,507,600,000 -2,518,100,000 -2,529,000,000 -2,529,900,000 -2,536,800,000 -2,531,100,000 -2,444,500,000 -2,351,700,000  -2,150,100,000 -2,111,200,000 -2,101,200,000 -2,112,200,000 -2,113,800,000 -2,132,300,000 -2,139,700,000 -2,170,400,000 -2,143,800,000 -2,110,800,000 -2,133,700,000 -2,044,600,000 -2,003,400,000 -1,980,800,000 -1,991,000,000 -1,961,600,000 -1,912,600,000 -1,860,500,000    -1,138,900,000 -1,491,300,000  -1,439,500,000 -1,374,200,000 -1,321,200,000 -1,274,600,000 -1,223,000,000 -1,194,300,000   
        stock held by employee benefits trusts, at cost, 0.6 shares at march 31, 2026 and december 31, 2025
      -5,900,000                                                                               
        total equifax shareholders’ equity
      4,540,700,000 4,604,300,000 4,938,500,000 5,103,500,000 4,981,200,000 4,796,900,000 4,909,000,000 4,696,000,000 4,561,500,000 4,534,100,000 4,293,300,000 4,191,200,000 4,064,000,000 3,956,500,000 3,759,000,000 3,805,000,000 3,834,100,000 3,584,400,000 3,539,200,000 3,460,500,000 3,318,000,000 3,168,400,000 2,929,000,000 2,694,100,000 2,386,500,000 2,578,600,000 2,515,800,000 2,543,400,000 2,561,700,000 3,107,800,000                                                  
        noncontrolling interests
      21,700,000 19,500,000 18,700,000 16,200,000 18,600,000 17,500,000 17,100,000 16,800,000 19,100,000 18,300,000 15,800,000                           58,600,000    39,500,000    34,500,000 37,000,000 38,000,000 40,300,000 40,300,000 19,400,000 23,700,000 26,000,000 26,000,000 24,400,000 22,600,000 22,100,000 19,700,000 18,000,000 18,300,000 19,200,000 17,000,000 16,900,000 15,200,000 15,300,000               
        total shareholders' equity
      4,562,400,000  4,957,200,000 5,119,700,000 4,999,800,000  4,926,100,000 4,712,800,000 4,580,600,000  4,309,100,000                       3,239,000,000    2,721,300,000                                          
        total liabilities, redeemable noncontrolling interests, and shareholders' equity
      11,942,000,000 11,864,200,000 11,831,800,000 11,917,900,000 11,854,800,000 11,759,400,000 12,344,300,000 12,152,300,000 12,251,300,000 12,280,000,000 12,348,900,000                                                                     
        trade accounts receivable, net of allowance for doubtful accounts of 20.2 and 16.9 at december 31, 2025 and 2024, respectively
       1,012,700,000                                                                              
        equifax shareholders’ equity:
                                                                                     
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2025 and 2024
       -5,900,000                                                                              
        total shareholders’ equity
       4,623,800,000    4,814,400,000    4,552,400,000    3,973,300,000    3,601,200,000    3,210,300,000    2,622,900,000    3,155,700,000                                       1,727,200,000 927,600,000 838,100,000 918,100,000 892,700,000 857,400,000 820,300,000 697,700,000 622,000,000 565,700,000 523,600,000 
        trade accounts receivable, net of allowance for doubtful accounts of 19.3 and 16.9 at september 30, 2025 and december 31, 2024, respectively
        1,015,000,000                                                                             
        stock held by employee benefits trusts, at cost, 0.6 shares at september 30, 2025 and december 31, 2024
        -5,900,000                                                                             
        trade accounts receivable, net of allowance for doubtful accounts of 18.8 and 16.9 at june 30, 2025 and december 31, 2024, respectively
         1,038,900,000                                                                            
        stock held by employee benefits trusts, at cost, 0.6 shares at june 30, 2025 and december 31, 2024
         -5,900,000                                                                            
        trade accounts receivable, net of allowance for doubtful accounts of 18.2 and 16.9 at march 31, 2025 and december 31, 2024, respectively
          1,017,800,000                                                                           
        stock held by employee benefits trusts, at cost, 0.6 shares at march 31, 2025 and december 31, 2024
          -5,900,000                                                                           
        trade accounts receivable, net of allowance for doubtful accounts of 16.9 and 16.7 at december 31, 2024 and 2023, respectively
           957,600,000                                                                          
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2024 and 2023
           -5,900,000                                                                          
        trade accounts receivable, net of allowance for doubtful accounts of 17.1 and 16.7 at september 30, 2024 and december 31, 2023, respectively
            953,600,000                                                                         
        stock held by employee benefits trusts, at cost, 0.6 shares at september 30, 2024 and december 31, 2023
            -5,900,000                                                                         
        trade accounts receivable, net of allowance for doubtful accounts of 16.7 at june 30, 2024 and december 31, 2023
             1,012,400,000                                                                        
        stock held by employee benefits trusts, at cost, 0.6 shares at june 30, 2024 and december 31, 2023
             -5,900,000                                                                        
        trade accounts receivable, net of allowance for doubtful accounts of 16.4 and 16.7 at march 31, 2024 and december 31, 2023, respectively
              1,006,100,000                                                                       
        stock held by employee benefits trusts, at cost, 0.6 shares at march 31, 2024 and december 31, 2023
              -5,900,000                                                                       
        trade accounts receivable, net of allowance for doubtful accounts of 16.7 and 19.1 at december 31, 2023 and 2022, respectively
               908,200,000                                                                      
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2023 and 2022
               -5,900,000                                                                      
        trade accounts receivable, net of allowance for doubtful accounts of 18.3 and 19.1 at september 30, 2023 and december 31, 2022, respectively
                967,900,000                                                                     
        stock held by employee benefit trusts, at cost, 0.6 shares at september 30, 2023 and december 31, 2022
                -5,900,000                                                                     
        trade accounts receivable, net of allowance for doubtful accounts of 17.0 and 19.1 at june 30, 2023 and december 31, 2022, respectively
                 935,900,000                                                                    
        stock held by employee benefit trusts, at cost, 0.6 shares at june 30, 2023 and december 31, 2022
                 -5,900,000                                                                    
        noncontrolling interests including redeemable noncontrolling interests
                 17,100,000 18,200,000 16,800,000 16,600,000 16,000,000 17,000,000 16,800,000 15,900,000 38,100,000 39,000,000 41,900,000 37,800,000 40,200,000 43,300,000 44,300,000 43,300,000 44,500,000 49,200,000 47,900,000 57,000,000 57,100,000 62,200,000 64,600,000 65,300,000 60,400,000 64,100,000  41,300,000 41,900,000 45,500,000  39,600,000 39,000,000 42,400,000                                   
        total equity
                 4,208,300,000 4,082,200,000  3,775,600,000 3,821,000,000 3,851,100,000  3,555,100,000 3,498,600,000 3,357,000,000  2,966,800,000 2,734,300,000 2,429,800,000  2,559,100,000 2,587,900,000 2,610,900,000  3,241,500,000 3,279,700,000 3,336,900,000  3,165,700,000 3,081,400,000 2,952,200,000  2,787,400,000 2,583,400,000 2,532,800,000 2,350,400,000 2,267,500,000 2,206,600,000 2,189,700,000 2,234,600,000 2,371,000,000 2,441,200,000 2,395,500,000 2,341,000,000 2,193,400,000 2,120,000,000 2,044,500,000 1,959,200,000 1,883,200,000 1,827,900,000 1,824,600,000 1,722,100,000 1,784,100,000 1,802,600,000 1,769,800,000 1,708,400,000 1,728,400,000 1,678,900,000 1,663,200,000               
        total liabilities and equity
                 11,537,900,000 11,583,900,000 11,547,900,000 11,308,000,000 11,221,200,000 11,391,700,000 11,040,900,000 11,083,300,000 9,340,300,000 9,669,400,000 9,611,800,000 9,249,800,000 8,832,800,000 7,622,800,000 7,909,000,000 7,430,700,000 7,473,500,000 7,335,700,000 7,153,200,000 7,134,000,000 7,116,900,000 7,196,100,000 7,233,400,000 7,115,700,000 7,058,300,000 6,789,000,000 6,664,000,000 6,806,600,000 6,640,800,000 6,732,900,000 4,509,000,000 4,541,400,000 4,585,500,000 4,595,000,000 4,674,200,000 4,707,100,000 4,766,300,000 4,750,100,000 4,539,900,000 4,390,400,000 4,373,600,000 4,387,200,000 4,511,100,000 3,605,900,000 3,521,100,000 3,518,400,000 3,508,600,000 3,512,500,000 3,489,300,000 3,468,800,000 3,433,600,000 3,400,000,000 3,432,100,000 3,505,600,000               
        trade accounts receivable, net of allowance for doubtful accounts of 20.1 and 19.1 at march 31, 2023 and december 31, 2022, respectively
                  919,500,000                                                                   
        stock held by employee benefit trusts, at cost, 0.6 shares at march 31, 2023 and december 31, 2022
                  -5,900,000                                                                   
        trade accounts receivable, net of allowance for doubtful accounts of 19.1 and 13.9 at december 31, 2022 and 2021, respectively
                   857,700,000                                                                  
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2022 and 2021, respectively
                   -5,900,000                                                                  
        trade accounts receivable, net of allowance for doubtful accounts of 15.5 and 13.9 at september 30, 2022 and december 31, 2021, respectively
                    845,000,000                                                                 
        stock held by employee benefit trusts, at cost, 0.6 shares at september 30, 2022 and december 31, 2021
                    -5,900,000                                                                 
        trade accounts receivable, net of allowance for doubtful accounts of 15.6 and 13.9 at june 30, 2022 and december 31, 2021, respectively
                     892,900,000                                                                
        stock held by employee benefit trusts, at cost, 0.6 shares at june 30, 2022 and december 31, 2021
                     -5,900,000                                                                
        trade accounts receivable, net of allowance for doubtful accounts of 14.9 and 13.9 at march 31, 2022 and december 31, 2021, respectively
                      856,800,000                                                               
        stock held by employee benefit trusts, at cost, 0.6 shares at march 31, 2022 and december 31, 2021
                      -5,900,000                                                               
        trade accounts receivable, net of allowance for doubtful accounts of 13.9 and 12.9 at december 31, 2021 and 2020, respectively
                       727,600,000                                                              
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2021 and 2020, respectively
                       -5,900,000                                                              
        trade accounts receivable, net of allowance for doubtful accounts of 11.3 and 12.9 at september 30, 2021 and december 31, 2020, respectively
                        694,600,000                                                             
        stock held by employee benefit trusts, at cost, 0.6 shares at september 30, 2021 and december 31, 2020
                        -5,900,000                                                             
        trade accounts receivable, net of allowance for doubtful accounts of 11.2 and 12.9 at june 30, 2021 and december 31, 2020, respectively
                         694,000,000                                                            
        stock held by employee benefit trusts, at cost, 0.6 shares at june 30, 2021 and december 31, 2020
                         -5,900,000                                                            
        trade accounts receivable, net of allowance for doubtful accounts of 11.8 and 12.9 at march 31, 2021 and december 31, 2020, respectively
                          708,800,000                                                           
        stock held by employee benefit trusts, at cost, 0.6 shares at march 31, 2021 and december 31, 2020
                          -5,900,000                                                           
        trade accounts receivable, net of allowance for doubtful accounts of 12.9 and 11.2 at december 31, 2020 and 2019, respectively
                           630,600,000                                                          
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2020 and 2019, respectively
                           -5,900,000                                                          
        trade accounts receivable, net of allowance for doubtful accounts of 15.8 and 11.2 at september 30, 2020 and december 31, 2019, respectively
                            605,900,000                                                         
        stock held by employee benefit trusts, at cost, 0.6 shares at september 30, 2020 and december 31, 2019
                            -5,900,000                                                         
        trade accounts receivable, net of allowance for doubtful accounts of 16.9 and 11.2 at june 30, 2020 and december 31, 2019, respectively
                             592,500,000                                                        
        stock held by employee benefit trusts, at cost, 0.6 shares at june 30, 2020 and december 31, 2019
                             -5,900,000                                                        
        trade accounts receivable, net of allowance for doubtful accounts of 13.4 and 11.2 at march 31, 2020 and december 31, 2019, respectively
                              605,500,000                                                       
        stock held by employee benefit trusts, at cost, 0.6 shares at march 31, 2020 and december 31, 2019
                              -5,900,000                                                       
        trade accounts receivable, net of allowance for doubtful accounts of 11.2 and 10.9 at december 31, 2019 and 2018, respectively
                               532,100,000                                                      
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2019 and 2018, respectively
                               -5,900,000                                                      
        trade accounts receivable, net of allowance for doubtful accounts of 12.5 and 10.9 at september 30, 2019 and december 31, 2018, respectively
                                516,600,000                                                     
        stock held by employee benefit trusts, at cost, 0.6 shares at september 30, 2019 and december 31, 2018
                                -5,900,000                                                     
        trade accounts receivable, net of allowance for doubtful accounts of 13.3 and 10.9 at june 30, 2019 and december 31, 2018, respectively
                                 502,600,000                                                    
        stock held by employee benefit trusts, at cost, 0.6 shares at june 30, 2019 and december 31, 2018
                                 -5,900,000                                                    
        trade accounts receivable, net of allowance for doubtful accounts of 12.5 and 10.9 at march 31, 2019 and december 31, 2018, respectively
                                  514,000,000                                                   
        stock held by employee benefit trusts, at cost, 0.6 shares at march 31, 2019 and december 31, 2018
                                  -5,900,000                                                   
        trade accounts receivable, net of allowance for doubtful accounts of 10.9 and 9.1 at december 31, 2018 and 2017, respectively
                                   469,100,000                                                  
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2018 and 2017
                                   -5,900,000                                                  
        trade accounts receivable, net of allowance for doubtful accounts of 11.5 and 9.1 at september 30, 2018 and december 31, 2017, respectively
                                    467,900,000                                                 
        stock held by employee benefit trusts, at cost, 0.6 shares at september 30, 2018 and december 31, 2017
                                    -5,900,000                                                 
        total equifax shareholders' equity
                                    3,184,500,000 3,222,600,000 3,274,700,000 3,174,400,000 3,100,400,000 3,021,000,000 2,888,100,000 2,662,700,000 2,746,100,000 2,541,500,000 2,487,300,000 2,310,900,000 2,227,900,000 2,167,600,000 2,147,300,000 2,200,100,000 2,334,000,000 2,403,200,000 2,355,200,000 2,300,700,000 2,174,000,000 2,096,300,000 2,018,500,000 1,933,200,000 1,858,800,000 1,805,300,000 1,802,500,000 1,702,400,000 1,766,100,000 1,784,300,000 1,750,600,000 1,691,400,000 1,711,500,000 1,663,700,000 1,647,900,000               
        trade accounts receivable, net of allowance for doubtful accounts of 11.0 and 9.1 at june 30, 2018 and december 31, 2017, respectively
                                     473,500,000                                                
        stock held by employee benefit trusts, at cost, 0.6 shares at june 30, 2018 and december 31, 2017
                                     -5,900,000                                                
        trade accounts receivable, net of allowance for doubtful accounts of 10.2 and 9.1 at march 31, 2018 and december 31, 2017, respectively
                                      487,500,000                                               
        stock held by employee benefit trusts, at cost, 0.6 shares at march 31, 2018 and december 31, 2017
                                      -5,900,000                                               
        trade accounts receivable, net of allowance for doubtful accounts of 9.1 and 7.8 at december 31, 2017 and 2016, respectively
                                       444,800,000                                              
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2017 and 2016
                                       -5,900,000                                              
        trade accounts receivable, net of allowance for doubtful accounts of 10.2 and 7.8 at september 30, 2017 and december 31, 2016, respectively
                                        458,300,000                                             
        stock held by employee benefit trusts, at cost, 0.6 shares at september 30, 2017 and december 31, 2016
                                        -5,900,000                                             
        trade accounts receivable, net of allowance for doubtful accounts of 9.5 and 7.8 at june 30, 2017 and december 31, 2016, respectively
                                         462,400,000                                            
        stock held by employee benefit trusts, at cost, 0.6 shares at june 30, 2017 and december 31, 2016
                                         -5,900,000                                            
        trade accounts receivable, net of allowance for doubtful accounts of 8.3 and 7.8 at march 31, 2017 and december 31, 2016, respectively
                                          459,700,000                                           
        stock held by employee benefit trusts, at cost, 0.6 shares at march 31, 2017 and december 31, 2016
                                          -5,900,000                                           
        trade accounts receivable, net of allowance for doubtful accounts of 7.8 and 7.5 at december 31, 2016 and 2015, respectively
                                           433,300,000                                          
        liabilities and shareholders' equity
                                                                                     
        short-term debt and current maturities
                                           585,400,000    49,300,000    380,400,000    296,500,000    283,300,000  17,000,000 17,000,000 47,200,000 67,700,000 17,600,000 40,700,000 20,700,000 21,000,000 87,500,000 157,200,000    427,200,000 307,000,000 330,000,000 91,700,000 95,600,000 92,400,000 92,300,000 88,800,000 263,900,000 317,700,000 255,700,000 
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2016 and 2015
                                           -5,900,000                                          
        trade accounts receivable, net of allowance for doubtful accounts of 9.5 and 7.5 at september 30, 2016 and december 31, 2015, respectively
                                            436,400,000                                         
        stock held by employee benefit trusts, at cost, 0.6 shares at september 30, 2016 and december 31, 2015
                                            -5,900,000                                         
        trade accounts receivable, net of allowance for doubtful accounts of 9.1 and 7.5 at june 30, 2016 and december 31, 2015, respectively
                                             418,000,000                                        
        stock held by employee benefit trusts, at cost, 0.6 shares at june 30, 2016 and december 31, 2015
                                             -5,900,000                                        
        trade accounts receivable, net of allowance for doubtful accounts of 9.4 and 7.5 at march 31, 2016 and december 31, 2015, respectively
                                              424,700,000                                       
        stock held by employee benefit trusts, at cost, 0.6 shares at march 31, 2016 and december 31, 2015
                                              -5,900,000                                       
        trade accounts receivable, net of allowance for doubtful accounts of 7.5 and 7.2 at december 31, 2015 and 2014, respectively
                                               349,800,000                                      
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2015 and 2014
                                               -5,900,000                                      
        trade accounts receivable, net of allowance for doubtful accounts of 8.2 and 7.2 at september 30, 2015 and december 31, 2014, respectively
                                                357,700,000                                     
        stock held by employee benefits trusts, at cost, 0.6 shares at both september 30, 2015 anddecember 31, 2014
                                                -5,900,000                                     
        trade accounts receivable, net of allowance for doubtful accounts of 7.7 and 7.2 at june 30, 2015 and december 31, 2014, respectively
                                                 368,200,000                                    
        stock held by employee benefits trusts, at cost, 0.6 shares at both june 30, 2015 anddecember 31, 2014
                                                 -5,900,000                                    
        trade accounts receivable, net of allowance for doubtful accounts of 7.9 and 7.2 at march 31, 2015 and december 31, 2014, respectively
                                                  362,700,000                                   
        stock held by employee benefits trusts, at cost, 0.6 shares at both march 31, 2015 anddecember 31, 2014
                                                  -5,900,000                                   
        trade accounts receivable, net of allowance for doubtful accounts of 7.2 and 6.8 at december 31, 2014 and 2013, respectively
                                                   337,200,000                                  
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2014 and 2013
                                                   -5,900,000                                  
        trade accounts receivable, net of allowance for doubtful accounts of 8.1 and 6.8 at september 30,
                                                                                     
        2014 and december 31, 2013, respectively
                                                    324,000,000                                 
        issued shares - 189.3 at september 30, 2014 and december 31, 2013;
                                                                                     
        outstanding shares - 120.4 and 121.9 at september 30, 2014 and december 31, 2013, respectively
                                                    236,600,000                                 
        respectively
                                                    -2,258,700,000                                 
        stock held by employee benefits trusts, at cost, 0.6 shares at both september 30, 2014 and
                                                                                     
        december 31, 2013
                                                    -5,900,000                                 
        trade accounts receivable, net of allowance for doubtful accounts of 8.7 and 6.8 at june 30, 2014 and december 31, 2013, respectively
                                                     345,300,000                                
        stock held by employee benefits trusts, at cost, 0.6 shares at both june 30, 2014 and december 31, 2013
                                                     -5,900,000                                
        trade accounts receivable, net of allowance for doubtful accounts of 8.3 and 6.8 at march 31, 2014 and december 31, 2013, respectively
                                                      337,200,000                               
        stock held by employee benefits trusts, at cost, 0.6 shares at both march 31, 2014 and december 31, 2013
                                                      -5,900,000                               
        trade accounts receivable, net of allowance for doubtful accounts of 6.8 and 6.3 at december 31, 2013 and 2012, respectively
                                                       309,700,000                              
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2013 and 2012
                                                       -5,900,000                              
        trade accounts receivable, net of allowance for doubtful accounts of 6.5 and 6.3 at september 30, 2013 and december 31, 2012, respectively
                                                        306,200,000                             
        stock held by employee benefits trusts, at cost, 0.6 shares at both september 30, 2013 and december 31, 2012
                                                        -5,900,000                             
        trade accounts receivable, net of allowance for doubtful accounts of 6.7 and 6.3 at june 30, 2013 and december 31, 2012, respectively
                                                         318,500,000                            
        stock held by employee benefits trusts, at cost, 0.6 shares at both june 30, 2013 and december 31, 2012
                                                         -5,900,000                            
        trade accounts receivable, net of allowance for doubtful accounts of 6.2 and 6.3 at march 31, 2013 and december 31, 2012, respectively
                                                          310,400,000                           
        stock held by employee benefits trusts, at cost, 0.6 shares at both march 31, 2013 and december 31, 2012
                                                          -5,900,000                           
        trade accounts receivable, net of allowance for doubtful accounts of 6.3 and 5.9 at december 31, 2012 and 2011, respectively
                                                           317,000,000                          
        stock held by employee benefits trusts, at cost, 0.6 shares at december 31, 2012 and 2011
                                                           -5,900,000                          
        trade accounts receivable, net of allowance for doubtful accounts of 6.6 and 5.9 at september 30, 2012 and december 31, 2011, respectively
                                                            296,900,000                         
        stock held by employee benefits trusts, at cost, 0.6 shares at both september 30, 2012 and december 31, 2011
                                                            -5,900,000                         
        trade accounts receivable, net of allowance for doubtful accounts of 6.0 and 5.9 at june 30, 2012 and december 31, 2011, respectively
                                                             293,900,000                        
        stock held by employee benefits trusts, at cost, 0.6 shares at both june 30, 2012 and december 31, 2011
                                                             -5,900,000                        
        trade accounts receivable, net of allowance for doubtful accounts of 6.3 and 5.9 at march 31, 2012 and december 31, 2011, respectively
                                                              297,800,000                       
        stock held by employee benefits trusts, at cost, 0.6 shares at both march 31, 2012 and december 31, 2011
                                                              -5,900,000                       
        trade accounts receivable, net of allowance for doubtful accounts of 5.9 and 7.5 at december 31, 2011 and 2010, respectively
                                                               284,400,000                      
        stock held by employee benefits trusts, at cost, 0.6 shares and 2.1 shares at december 31, 2011 and 2010, respectively
                                                               -5,900,000                      
        trade accounts receivable, net of allowance for doubtful accounts of 6.2 and 7.5 at september 30, 2011 and december 31, 2010, respectively
                                                                275,800,000                     
        stock held by employee benefits trusts, at cost, 2.1 shares at both september 30, 2011 and december 31, 2010
                                                                -41,200,000                     
        trade accounts receivable, net of allowance for doubtful accounts of 6.6 and 7.5 at june 30, 2011 and december 31, 2010, respectively
                                                                 273,000,000                    
        issued shares - 189.3 at june 30, 2011 and december 31, 2010;
                                                                                     
        outstanding shares - 122.4 and 122.6 at june 30, 2011 and december 31, 2010, respectively
                                                                 236,600,000                    
        stock held by employee benefits trusts, at cost, 2.1 shares at both june 30, 2011 and december 31, 2010
                                                                 -41,200,000                    
        trade accounts receivable, net of allowance for doubtful accounts of 7.4 and 7.5 at march 31, 2011 and december 31, 2010, respectively
                                                                  283,500,000                   
        issued shares - 189.3 at march 31, 2011 and december 31, 2010;
                                                                                     
        outstanding shares - 123.0 and 122.6 at march 31, 2011 and december 31, 2010, respectively
                                                                  236,600,000                   
        stock held by employee benefits trusts, at cost, 2.1 shares at both march 31, 2011 and december 31, 2010
                                                                  -41,200,000                   
        trade accounts receivable, net of allowance for doubtful accounts of 7.5 and 15.1 at december 31, 2010 and 2009, respectively
                                                                   262,600,000                  
        stock held by employee benefits trusts, at cost, 2.1 shares at december 31, 2010 and 2009
                                                                   -41,200,000                  
        trade accounts receivable, net of allowance for doubtful accounts of 9.9 and 15.1 at september 30, 2010 and december 31, 2009, respectively
                                                                    266,200,000                 
        issued shares - 189.3 at september 30, 2010 and december 31, 2009;
                                                                                     
        outstanding shares - 123.4 and 126.2 at september 30, 2010 and december 31, 2009, respectively
                                                                    236,600,000                 
        stock held by employee benefits trusts, at cost, 2.1 shares at both september 30, 2010 and december 31, 2009
                                                                    -41,200,000                 
        trade accounts receivable, net of allowance for doubtful accounts of 10.9 and 15.1 at june 30, 2010 and december 31, 2009, respectively
                                                                     260,500,000                
        capitalized lease obligation
                                                                                     
        stock held by employee benefits trusts, at cost, 2.1 shares at june 30, 2010 and december 31, 2009
                                                                     -41,200,000                
        trade accounts receivable, net of allowance for doubtful accounts of 12.3 and 15.1 at march 31, 2010 and december 31, 2009, respectively
                                                                      258,500,000               
        stock held by employee benefits trusts, at cost, 2.1 shares at march 31, 2010 and december 31, 2009
                                                                      -41,200,000               
        prepaid pension asset
                                                                          57,800,000 55,900,000 47,700,000 189,900,000 191,500,000 192,300,000 183,700,000     
        shareholders' equity:
                                                                                     
        trade accounts receivable, net of allowance for doubtful accounts of 8.5 and 8.7 at june 30, 2007 and december 31, 2006, respectively
                                                                          296,200,000           
        liabilities and shareholders’ equity
                                                                                     
        shareholders’ equity:
                                                                                     
        preferred stock, 0.01 par value: authorized shares—10.0; issued shares—none
                                                                                     
        stock held by employee benefits trusts, at cost, 3.7 shares and 3.9 shares at june 30, 2007 and december 31, 2006
                                                                          -57,600,000           
        total liabilities and shareholders’ equity
                                                                          3,613,700,000 1,831,900,000 1,790,600,000 1,894,100,000 1,883,700,000 1,879,000,000 1,831,500,000     
        trade accounts receivable, net of allowance for doubtful accounts of 8.8 and 8.7 at march 31, 2007 and december 31, 2006, respectively
                                                                           252,200,000          
        income taxes payable
                                                                           37,300,000    29,100,000      
        commitments & contingencies
                                                                                     
        stock held by employee benefits trusts, at cost, 3.8 and 3.9 shares at march 31, 2007 and december 31, 2006
                                                                           -57,600,000          
        trade accounts receivable, net of allowance for doubtful accounts of 8.7 and 9.6 at december 31, 2006 and 2005, respectively
                                                                            244,800,000         
        stock held by employee benefits trusts, at cost, 3.9 shares and 4.3 shares at december 31, 2006 and 2005, respectively
                                                                                     
        trade accounts receivable, net of allowance for doubtful accounts of 10.3 at september 30, 2006 and 9.6 at december 31, 2005
                                                                             248,500,000        
        issued shares—186.2 at september 30, 2006 and 185.2 at december 31, 2005; outstanding shares—125.7 at september 30, 2006 and 129.2 at december 31, 2005
                                                                             232,700,000        
        stock held by employee benefits trusts, at cost, 4.2 shares at september 30, 2006 and 4.3 shares at december 31, 2005
                                                                             -61,700,000        
        trade accounts receivable, net of allowance for doubtful accounts of 10.6 at june 30, 2006 and 9.6 at december 31, 2005
                                                                              239,000,000       
        accrued legal expenses
                                                                              20,000,000       
        stock held by employee benefit trusts, at cost, 4.2 shares at june 30, 2006 and 4.3 shares at december 31, 2005
                                                                              -61,700,000       
        trade accounts receivable, net of allowance for doubtful accounts of 10.5 at march 31, 2006 and 9.6 at december 31, 2005
                                                                               226,900,000      
        less accumulated depreciation
                                                                               -187,500,000 -179,000,000 175,700,000 181,600,000 196,200,000 198,000,000 
        goodwill and indefinite-lived intangible assets
                                                                               894,200,000 886,200,000     
        stock held by employee benefits trusts, at cost, 4.2 shares at march 31, 2006 and 4.3 shares at december 31, 2005
                                                                               -61,700,000      
        trade accounts receivable, net of allowance for doubtful accounts of 9.6 in 2005 and 9.3 in 2004
                                                                                216,000,000     
        deferred income tax assets
                                                                                1,700,000 14,300,000 11,300,000 17,800,000 13,200,000 
        stock held by employee benefits trusts, at cost, 4.3 shares in 2005 and 4.9 shares in 2004
                                                                                -62,900,000     
        trade accounts receivable, net of allowance for doubtful accounts of 10.0 in 2005 and 9.3 in 2004
                                                                                 224,000,000  214,100,000  
        current assets from discontinued operations
                                                                                  100,000 100,000 500,000 
        current liabilities of discontinued operations
                                                                                     
        issued shares—184.7 in 2005 and 182.0 in 2004;
                                                                                     
        outstanding shares—129.8 in 2005 and 129.4 in 2004
                                                                                 230,900,000    
        stock held by employee benefits trusts, at cost, 4.6 shares in 2005 and 4.9 shares in 2004
                                                                                 -65,800,000 -65,800,000   
        trade accounts receivable, net of allowance for doubtful accounts of 11.2 in 2005 and 9.3 in 2004
                                                                                  215,600,000   
        issued shares—183.9 in 2005 and 182.0 in 2004
                                                                                     
        outstanding shares—129.7 in 2005 and 129.4 in 2004
                                                                                  229,800,000   
        assets of discontinued operations
                                                                                     
        outstanding shares - 129.7 in 2005 and 129.4 in 2004
                                                                                   228,500,000  
        trade accounts receivable, net of allowance for doubtful accounts of 9.3 in 2004 and 11.9 in 2003
                                                                                    195,100,000 
        other receivables
                                                                                    8,900,000 
        current liabilities from discontinued operations
                                                                                    300,000 
        liabilities of discontinued operations
                                                                                     
        preferred stock, 0.01 par value: authorized—10.0; issued—none
                                                                                     
        stock held by employee benefits trusts, at cost, 4.9 shares in 2004 and 5.4 shares in 2003
                                                                                     
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 
                                                                                   
          operating activities:
                                                                                   
          consolidated net income
        173,300,000 176,400,000 161,500,000 192,600,000 133,800,000 173,400,000 142,700,000 165,100,000 126,100,000 134,500,000 164,300,000 139,400,000 113,500,000 109,100,000 166,900,000 201,400,000 222,800,000 123,000,000 206,700,000 215,900,000 202,900,000 90,600,000 225,000,000 96,100,000 114,500,000 10,800,000 82,500,000 68,300,000 -554,400,000 26,700,000 39,600,000 146,200,000 93,800,000 174,500,000 100,500,000 167,600,000 155,400,000 124,800,000 134,900,000 133,000,000 102,400,000 113,000,000 119,700,000 112,500,000 89,600,000 98,800,000 94,400,000 94,500,000 86,300,000 78,900,000 85,500,000 92,300,000 103,200,000 48,200,000 80,100,000 78,800,000 73,700,000 76,000,000 69,300,000 37,100,000 59,300,000 64,000,000 78,800,000 73,400,000 58,600,000           
          adjustments to reconcile consolidated net income to net cash from operating activities:
                                                                                   
          depreciation and amortization
        184,800,000 186,100,000 185,100,000 179,300,000 176,400,000 173,700,000 173,400,000 166,900,000 166,600,000 158,800,000 156,700,000 152,100,000 152,200,000 144,500,000 142,900,000 141,900,000 139,300,000 134,700,000 118,500,000 119,700,000 116,700,000 104,100,000 103,100,000 97,800,000 94,300,000 88,500,000 85,700,000 83,900,000 79,200,000 80,600,000 77,800,000 78,500,000 79,000,000 74,200,000 73,200,000 71,400,000 72,100,000 73,300,000 70,700,000 67,900,000 56,800,000 49,600,000 49,600,000 50,500,000 50,300,000 52,100,000 50,900,000 50,700,000 50,500,000 45,700,000 52,300,000 44,200,000 48,100,000 40,600,000 40,400,000 41,100,000 41,300,000 41,100,000 40,300,000 40,800,000 42,700,000 42,100,000 41,400,000 41,800,000 42,500,000 29,600,000 21,400,000 20,800,000 20,400,000 20,500,000 21,100,000 21,700,000 20,500,000 20,100,000 19,900,000 
          stock-based compensation expense
        43,300,000 14,500,000 17,300,000 13,100,000 33,500,000 9,700,000 11,600,000 19,100,000 41,200,000 10,500,000 9,100,000 12,500,000 39,700,000 12,200,000 13,700,000 14,400,000 22,300,000 10,100,000 10,900,000 13,200,000 20,700,000 10,800,000 12,200,000 12,900,000 18,800,000 9,100,000 10,800,000 11,700,000 18,100,000 9,700,000 12,100,000 7,900,000 12,800,000 3,700,000 9,300,000 6,600,000 18,700,000 6,900,000 8,000,000 5,900,000 16,300,000 6,200,000 7,700,000 6,300,000 18,200,000 9,100,000 9,400,000 8,500,000 11,100,000 9,100,000 6,400,000 6,300,000 10,400,000 8,000,000 5,000,000 5,700,000 9,300,000 7,100,000 5,500,000 7,100,000 4,700,000 6,800,000 4,100,000 6,500,000 4,400,000 5,000,000 4,000,000 3,000,000 3,600,000 6,600,000 4,200,000     
          deferred income taxes
        13,500,000 600,000 36,900,000 -4,300,000 -3,000,000 -21,700,000 -5,600,000 -21,700,000 -17,900,000 -2,300,000 -62,300,000 6,300,000 -11,900,000 40,200,000 21,200,000 -13,500,000 40,200,000 -3,300,000 -1,500,000 -9,000,000 23,100,000 -11,500,000 48,500,000 12,500,000 17,000,000 -5,500,000 2,900,000 4,600,000 -89,200,000 11,100,000 -3,400,000 -7,300,000 -2,700,000 -3,500,000 -33,800,000 -4,200,000 -2,600,000 -2,600,000 -13,000,000 1,500,000 1,100,000 -4,400,000 -5,700,000 -22,200,000 3,600,000 -10,100,000 -2,300,000 2,300,000 500,000 -2,800,000 600,000 -3,900,000 -3,600,000 -22,700,000 -3,000,000 -1,200,000 400,000 -3,400,000 900,000 6,200,000 -100,000 -3,100,000 2,600,000 700,000 -100,000  -1,700,000  3,400,000 1,100,000 -800,000 -1,900,000 400,000 10,200,000 3,100,000 
          changes in assets and liabilities, excluding effects of acquisitions:
                                                                                   
          accounts receivable
        -58,300,000 4,700,000 23,400,000 -14,000,000 -55,000,000 -18,500,000 63,200,000 -8,500,000 -102,500,000 63,100,000 -11,100,000 -14,500,000 -60,800,000 -5,000,000 36,900,000 -45,600,000 -124,900,000 -11,300,000 -3,600,000 14,500,000 -65,800,000 -17,600,000 -10,800,000 18,600,000 -83,900,000 -11,400,000 -19,700,000 12,600,000 -42,800,000 -5,300,000 4,200,000 3,300,000 -39,600,000 13,600,000 9,200,000 -1,400,000 -22,700,000 -1,200,000 -12,000,000 2,900,000 -45,400,000 2,100,000 5,800,000 -4,200,000 -30,600,000 -16,700,000 16,700,000 -7,400,000 -20,400,000 -1,000,000 13,100,000 -10,400,000 -4,100,000 -7,700,000 300,000 1,200,000 -11,000,000 -7,900,000 -3,500,000 1,800,000 -17,000,000 7,200,000 -2,400,000 -2,600,000 -5,800,000 7,400,000 -6,900,000    -10,300,000  -4,600,000   
          other assets, current and long-term
        -16,300,000 52,900,000 14,500,000 -19,300,000 -5,500,000 -16,200,000 -17,100,000 19,000,000 -15,200,000 3,000,000 -6,000,000 15,000,000 -25,000,000 9,600,000 11,400,000 -42,800,000 -600,000 11,300,000 -200,000 -9,400,000 14,700,000 6,200,000 300,000 -300,000 29,600,000 -111,400,000 -2,200,000 34,600,000 200,000 -49,100,000 -30,800,000 26,600,000 37,900,000 -95,700,000 5,900,000 -1,100,000 -29,200,000                                       
          current and long term liabilities, excluding debt
        -98,400,000  121,200,000 14,500,000 -56,300,000  111,300,000 -72,400,000 54,400,000  131,200,000 -38,200,000 -53,700,000  -20,300,000 13,600,000 -489,300,000  85,000,000 57,200,000 -180,600,000  118,600,000 13,600,000 -126,600,000  -324,900,000 1,300,000 619,900,000  53,100,000 -20,000,000 -61,600,000  115,300,000 -13,500,000 -88,000,000                                       
          cash from operating activities
        241,900,000 470,800,000 559,900,000 361,100,000 223,900,000 324,800,000 479,500,000 267,500,000 252,700,000 322,100,000 381,700,000 262,100,000 150,900,000 325,400,000 354,900,000 275,300,000 -198,500,000 385,300,000 398,400,000 407,700,000 143,400,000 297,200,000 367,000,000 251,200,000 30,800,000 230,700,000 -164,900,000 217,000,000 31,000,000 164,800,000 152,600,000 235,200,000 119,600,000 207,300,000 279,600,000 225,400,000 103,700,000 271,300,000 245,000,000 189,200,000 90,300,000 205,300,000 247,200,000 186,700,000 102,900,000 202,800,000 195,600,000 152,800,000 65,000,000 191,900,000 167,600,000 140,500,000 66,300,000 144,200,000 151,700,000 152,100,000 48,300,000 149,700,000 112,000,000 123,900,000 23,100,000     88,200,000 64,900,000 118,900,000 99,400,000 90,700,000 65,300,000 106,000,000 103,300,000 88,400,000 40,100,000 
          investing activities:
                                                                                   
          capital expenditures
        -120,400,000 -130,000,000 -122,000,000 -122,200,000 -107,200,000 -118,900,000 -124,000,000 -136,700,000 -131,900,000 -145,700,000 -134,300,000 -163,000,000 -158,300,000 -156,100,000 -153,000,000 -158,900,000 -156,500,000 -136,100,000 -97,400,000 -122,500,000 -113,000,000 -111,800,000 -116,700,000 -104,800,000 -88,000,000 -93,900,000 -97,200,000 -93,700,000 -114,800,000 -113,800,000 -89,400,000 -62,500,000 -56,200,000 -60,700,000 -57,600,000 -49,600,000 -50,300,000 -42,500,000 -48,200,000 -42,600,000 -40,200,000 -52,600,000 -38,400,000 -33,600,000 -21,600,000 -22,500,000 -26,200,000 -19,200,000 -18,500,000 -21,800,000 -25,300,000 -17,500,000 -18,700,000 -16,700,000 -14,800,000 -14,300,000 -20,200,000 -15,800,000 -15,300,000 -17,700,000 -26,200,000     -14,600,000 -10,700,000 -11,200,000 
          free cash flows
        121,500,000 340,800,000 437,900,000 238,900,000 116,700,000 205,900,000 355,500,000 130,800,000 120,800,000 176,400,000 247,400,000 99,100,000 -7,400,000 169,300,000 201,900,000 116,400,000 -355,000,000 249,200,000 301,000,000 285,200,000 30,400,000 185,400,000 250,300,000 146,400,000 -57,200,000 136,800,000 -262,100,000 123,300,000 -83,800,000 51,000,000 63,200,000 172,700,000 63,400,000 146,600,000 222,000,000 175,800,000 53,400,000 228,800,000 196,800,000 146,600,000 50,100,000 152,700,000 208,800,000 153,100,000 81,300,000 180,300,000 169,400,000 133,600,000 46,500,000 170,100,000 142,300,000 123,000,000 47,600,000 127,500,000 136,900,000 137,800,000 28,100,000 133,900,000 96,700,000 106,200,000 -3,100,000     88,200,000 50,300,000 118,900,000 99,400,000 90,700,000 54,600,000 106,000,000 92,100,000 88,400,000 40,100,000 
          cash from investing activities
        -120,400,000 -203,700,000 -122,000,000 -121,400,000 -107,200,000 -118,900,000 -124,000,000 -136,700,000 -131,900,000 -153,500,000 -406,000,000 -156,100,000 -162,600,000 -152,400,000 -478,400,000 -60,500,000 -268,200,000 -1,957,900,000 -344,700,000 -122,100,000 -973,500,000 -111,800,000 -130,000,000   -132,000,000 -97,200,000 -303,700,000 -164,600,000 -136,300,000 -175,800,000 -79,300,000 -70,100,000 -123,300,000 -125,300,000 -51,900,000 -49,000,000 -41,700,000 -112,800,000 -42,600,000 -1,778,800,000 -52,600,000 -35,500,000 -33,600,000 -26,100,000 -29,800,000 -31,900,000 -19,700,000 -347,900,000 -85,700,000 -52,800,000 -20,100,000 25,000,000 -1,025,800,000 -22,200,000 -15,400,000 -20,200,000 -31,000,000 -98,300,000 -15,200,000 -59,600,000 -84,500,000     -18,500,000    -10,800,000     
          financing activities:
                                                                                   
          net short-term borrowings
        214,900,000          327,600,000 -250,400,000 -160,800,000   -130,100,000 516,800,000 -175,800,000   -700,000  -500,000 600,000 200,000  339,800,000 -37,500,000 64,700,000     -102,500,000 146,100,000 162,400,000 46,400,000 -121,200,000 -13,300,000 -692,600,000 900,100,000     247,600,000 900,000 -62,000,000 193,400,000        -30,200,000    19,800,000   -69,600,000 2,700,000       3,700,000 77,200,000 -53,800,000 65,200,000 
          payments on long-term debt
        -1,400,000     -750,000,000 -686,800,000 -4,400,000 -4,400,000 -4,300,000       -600,100,000     -200,000,000 -25,000,000 -25,000,000   -272,500,000 -50,000,000 -50,000,000 -90,000,000 -200,000,000 -10,000,000     -275,000,000     -100,000   -15,000,000 -1,700,000 -1,200,000 -900,000 -15,600,000 -3,100,000           
          treasury stock purchases
        -260,000,000 -500,100,000 -300,000,000               -35,800,000 -34,100,000                    -14,100,000 -92,300,000 -89,900,000 -115,000,000 -113,200,000 -49,000,000 -24,400,000    -34,000,000   -67,100,000 -43,900,000   -51,100,000 -51,600,000 -55,400,000 -9,400,000  -400,000    -46,200,000  -40,000,000   
          dividends paid to equifax shareholders
        -67,100,000 -60,800,000 -61,500,000 -62,000,000 -48,500,000 -48,400,000 -48,400,000 -48,200,000 -48,200,000 -48,100,000 -48,100,000 -47,700,000 -47,900,000 -47,800,000 -47,600,000 -47,800,000 -47,900,000 -47,400,000 -47,600,000 -47,500,000 -47,500,000 -47,400,000 -47,500,000 -47,300,000 -47,300,000 -47,300,000 -47,200,000 -47,100,000 -47,100,000 -47,100,000 -46,900,000 -47,000,000 -46,900,000 -46,700,000 -46,800,000 -47,000,000 -46,900,000 -39,500,000 -39,500,000 -39,400,000 -39,200,000 -34,400,000 -34,400,000 -34,300,000 -34,700,000 -29,900,000 -30,100,000 -30,500,000 -30,700,000 -26,800,000 -26,700,000 -26,700,000 -26,500,000 -21,500,000 -21,400,000 -21,900,000 -21,200,000 -19,400,000 -19,500,000 -19,600,000 -19,600,000 -20,300,000 -5,000,000 -4,900,000 -5,000,000           
          proceeds from exercise of stock options and employee stock purchase plan
        10,400,000 8,300,000 13,700,000 12,100,000 12,300,000 10,700,000 29,400,000 18,200,000 19,900,000 13,700,000 2,100,000 9,900,000 6,600,000 3,400,000 4,800,000 3,000,000 5,700,000 13,400,000 8,300,000 18,500,000 6,600,000 11,800,000                                                      
          payment of taxes related to settlement of equity awards
        -14,500,000 -1,400,000 -400,000 -1,700,000 -11,500,000 -400,000 -400,000 -600,000 -15,400,000 -400,000 -1,000,000 -15,900,000 -900,000 -700,000 -2,500,000 -29,800,000 -13,400,000 -13,500,000 -21,800,000 -8,600,000     -800,000 -5,100,000 -400,000 -4,200,000 -900,000 -6,200,000 -100,000 -12,500,000 -5,500,000 -1,000,000 -6,700,000 -20,300,000                                       
          cash from financing activities
        -117,700,000 -276,200,000 -436,700,000 -251,000,000 -95,800,000 -501,400,000 -64,300,000 -148,800,000 -131,900,000 -369,700,000 280,700,000 -173,900,000 -43,300,000 -142,800,000 151,500,000 -179,300,000 444,300,000 -224,700,000 1,522,700,000 -591,700,000 -88,600,000 -54,500,000 -51,000,000 823,600,000 92,700,000 131,500,000 296,600,000 89,700,000 40,100,000 -55,000,000 -51,000,000 -66,700,000 -138,300,000 -60,900,000 -247,100,000 107,600,000 -63,300,000 -204,900,000 -125,800,000 -146,000,000 1,664,200,000 -161,000,000 -182,900,000 -164,500,000 -103,600,000 -156,700,000 -137,200,000 -144,400,000 154,900,000 800,000 -86,500,000 -119,000,000 -128,400,000 759,900,000 -44,700,000 -78,200,000 -30,700,000 -97,000,000   1,600,000      -45,100,000    -35,400,000     
          effect of foreign currency exchange rates on cash and cash equivalents
        -1,200,000 900,000 -1,200,000 5,100,000 4,400,000 -2,800,000 -4,900,000 -1,100,000 -4,700,000 5,300,000 -7,900,000 -500,000 2,300,000 13,300,000 -9,900,000 -12,800,000 -1,400,000 -3,500,000 -9,000,000   18,100,000 2,200,000 17,500,000 -18,800,000 3,600,000 -2,800,000 -400,000 3,100,000 -3,300,000 200,000 -11,100,000 1,700,000 -2,100,000 4,300,000 -400,000 2,500,000 -6,900,000 8,300,000 -600,000 27,800,000 -6,900,000 -4,500,000 600,000 -6,500,000 -3,000,000 -3,200,000 1,600,000 -6,500,000 -3,000,000 -1,300,000 -4,100,000 -2,100,000 1,300,000 -700,000 -8,100,000 7,600,000 4,000,000 -5,400,000 -1,400,000 2,400,000 -300,000 2,000,000 -1,500,000 -2,200,000 1,400,000 500,000  200,000 700,000 -200,000     
          increase in cash and cash equivalents
        2,600,000 -8,200,000 -6,200,000 25,300,000 -298,300,000    -195,800,000        -1,800,800,000 1,567,400,000   149,000,000 188,200,000       -29,800,000 -74,000,000   21,000,000 -88,500,000 280,700,000 -6,100,000 17,800,000 14,700,000 3,500,000         104,000,000 27,000,000 -2,700,000 -39,200,000 -120,400,000 84,100,000 50,400,000 5,000,000     3,800,000    194,600,000 1,800,000 12,100,000   18,900,000    800,000 
          cash and cash equivalents, beginning of period
        180,800,000 169,900,000 216,800,000 285,200,000 224,700,000 1,684,600,000 401,300,000 223,600,000 336,400,000 129,300,000 93,300,000 128,300,000 235,900,000 146,800,000 127,700,000 119,400,000 103,100,000 67,800,000 37,500,000    52,100,000 
          cash and cash equivalents, end of period
        183,400,000 -8,200,000 -6,200,000 195,200,000 -298,300,000 286,300,000 -19,100,000 201,000,000 -195,800,000 248,500,000 -68,400,000 232,500,000 43,500,000 18,100,000 22,700,000 200,900,000 -1,800,800,000 1,567,400,000 -307,800,000 765,900,000 149,000,000 188,200,000 977,500,000 369,900,000 233,800,000 31,700,000 2,600,000 133,200,000 -29,800,000 -74,000,000 78,100,000 249,300,000 21,000,000 -88,500,000 280,700,000 123,200,000 17,800,000 14,700,000 96,800,000 -15,200,000 24,300,000 -10,800,000 95,000,000 13,300,000 23,300,000 -9,700,000 101,400,000 104,000,000 27,000,000 -2,700,000 107,600,000 -120,400,000 84,100,000 50,400,000 132,700,000 25,700,000 -6,700,000 21,800,000 86,900,000 3,800,000 45,500,000 -7,000,000 77,100,000 194,600,000 69,600,000 12,100,000 7,500,000 -8,200,000 56,400,000  -3,200,000 -8,200,000 52,900,000 
          gain on fair market value adjustment and gain on sale of equity investments
                  -200,000                                                                 
          current and long-term liabilities, excluding debt
                                                                                   
          acquisitions, net of cash acquired
                 -7,800,000 -271,700,000 -4,300,000 3,700,000 -326,100,000 300,000 -111,700,000 -1,826,700,000 -247,300,000 400,000 -862,000,000 -13,300,000 -48,100,000 -38,100,000 -210,000,000 -24,800,000 -22,500,000 -85,100,000 -16,800,000 -13,900,000 -62,600,000 -67,700,000 -2,300,000 -7,300,000 800,000 -64,600,000 -1,727,800,000 -4,400,000 -7,300,000 -333,700,000 -63,900,000    -1,009,100,000    -15,200,000 -81,500,000 -30,700,000 -67,300,000 -600,000 -8,700,000 -6,000,000        -17,300,000   
          cash received from divestitures
         400,000                                          3,800,000 43,700,000                     
          proceeds from issuance of long-term debt
                                                                      1,400,000           
          distributions paid to noncontrolling interests
         100,000 -2,000,000   -200,000 -1,000,000 -3,000,000 -400,000                                                                   
          purchase of redeemable noncontrolling interests
                           -3,600,000        -7,400,000 -2,200,000 -20,900,000 -400,000                                          
          debt issuance costs
             -200,000    -200,000 -200,000 -5,500,000 -300,000 -800,000    -1,300,000    -8,200,000 -1,600,000     -200,000 -300,000       -800,000 100,000                                     
          gain on sale of equity investment
                                                                                  
          net short-term payments
          -88,200,000 -67,800,000 -48,100,000  -1,700,000 -110,800,000 -83,400,000                                                                   
          borrowings on long-term debt
                  697,900,000 175,000,000          998,300,000 125,000,000  200,000,000 50,000,000  -300,000        774,700,000 800,000,000                                   
          decrease in cash and cash equivalents
               -19,100,000 -15,800,000   -68,400,000 -52,700,000  18,100,000 22,700,000 -23,800,000    -918,700,000    -31,400,000  31,700,000 2,600,000 -90,400,000    -87,100,000          24,300,000 -10,800,000 -33,300,000  23,300,000 -9,700,000 -134,500,000          -6,700,000 21,800,000 -32,500,000            -3,200,000   
          gain on fair market value adjustment of equity investments
                    -3,100,000         13,300,000                                                      
          loss on fair market value adjustment and gain on sale of equity investments
                                                                                   
          (gain) on sale of asset
                                                                                   
          (gain) on divestiture
                                                                                   
          cash received from sale of asset
                                        8,600,000                                       
          net short-term (payments) borrowings
                                                                                   
          dividends paid to noncontrolling interests
                  -700,000   -600,000 -100,000 -1,900,000 -500,000 -700,000 -5,100,000 -700,000 -2,000,000 -1,000,000 -1,300,000 -300,000 -1,800,000 -100,000 -4,500,000 -200,000 -1,600,000 -6,300,000 -2,400,000 -200,000 -1,600,000 -4,700,000 -1,900,000 -200,000 -3,900,000 -1,700,000 -400,000 -4,400,000 -1,600,000 -200,000 -1,400,000 -4,400,000 -1,900,000 -700,000 -5,900,000 -2,800,000 -1,100,000 -2,900,000 -500,000   -2,000,000   -1,700,000 -1,100,000 -2,000,000 -300,000           
          loss on fair market value adjustment and gain on sale of equity investment
                     -16,600,000                                                              
          investment in unconsolidated affiliates
                               -25,000,000            -100,000 -6,300,000 -500,000 4,300,000   -100,000   -1,500,000 -2,700,000               
          other
                                                     -100,000 200,000 -200,000 100,000 -700,000   -400,000 200,000 -100,000 -100,000 -2,500,000 300,000 -300,000 -300,000 -200,000  -3,900,000   200,000 -100,000     
          gain on divestiture
                         -200,000                              -600,000 -18,400,000                       
          net short-term (repayments) borrowings
                                      -700,000 -883,400,000 -76,800,000          -148,200,000 -42,400,000 -2,800,000                              
          purchase of noncontrolling interests
                                                                                   
          cash received from divestiture
                          1,500,000                                                       
          loss on fair market value adjustment of equity investments
                        -8,300,000 63,500,000 -17,400,000 5,600,000 11,900,000                                                       
          gain on sale of asset
                                                                                   
          net short-term repayments
                                                          -59,900,000 -100,000,000 -106,600,000              -23,000,000         
          payment of contingent consideration
                                     -1,500,000                                           
          gain on fair market value adjustment of equity investment
                               -32,900,000                                                   
          proceeds from exercise of stock options
                               6,200,000 16,700,000 7,000,000 9,200,000 4,200,000 1,900,000 500,000 5,600,000 3,500,000 2,200,000 400,000 5,800,000 3,600,000 9,400,000 4,700,000 11,100,000 11,600,000 4,100,000 8,400,000 8,800,000 5,800,000 11,400,000 10,000,000 5,200,000 10,600,000 13,900,000 8,900,000 14,600,000 18,400,000 5,900,000 27,400,000 7,600,000 12,700,000 20,600,000 10,800,000 600,000 7,200,000 5,100,000 15,500,000 1,400,000 800,000 11,600,000 15,900,000 6,500,000 6,300,000 6,400,000 4,500,000 8,900,000 15,100,000 16,700,000 12,200,000 18,800,000 
          cash (used) in investing activities
                                -136,100,000                                                   
          excess tax benefits from stock-based compensation plans
                                             -6,300,000 -9,600,000 -9,100,000 -10,900,000 -7,900,000 -5,000,000 -3,100,000 -14,000,000 -5,800,000 -1,500,000 -6,000,000 -4,400,000 -3,500,000 -3,500,000 -7,000,000 -600,000 -1,500,000 300,000 -500,000 -600,000 -100,000 -500,000 -1,900,000 -200,000 -1,400,000 12,200,000 -1,700,000 1,500,000 600,000 4,800,000 -1,900,000     
          economic hedges
                                              -10,800,000                                   
          impairment of cost method investment
                                                                                 
          adjustments to reconcile consolidated net income to net cash provided by operating activities:
                                                                                   
          cash paid to settle economic hedges
                                                                                   
          prepaid expenses and other current assets
                                              -5,400,000 -5,100,000 17,500,000 -10,400,000 18,500,000 -11,300,000 14,000,000 9,000,000 900,000 -35,600,000 20,500,000 2,600,000 -2,900,000 -4,100,000 200,000 -20,100,000 -900,000 2,100,000 -3,600,000 9,200,000 2,000,000 600,000 -9,400,000 7,300,000 6,700,000 -7,900,000  -15,800,000    -7,200,000     
          other assets
                                              -3,000,000 -4,400,000 -500,000 1,200,000 -500,000 -500,000 4,900,000 -700,000 3,700,000 3,200,000 -6,800,000 -100,000 -100,000 300,000 4,300,000 -1,600,000 -3,300,000 2,100,000 -1,200,000 4,600,000 2,300,000 8,000,000 100,000 -700,000 -4,700,000 500,000 3,500,000  60,300,000    -10,000,000 12,800,000 1,300,000   
          current liabilities, excluding debt
                                              67,500,000 -19,600,000 -46,100,000 50,500,000 58,600,000 42,500,000 -33,100,000 65,900,000 20,300,000 40,300,000 -72,200,000 44,200,000 15,100,000 17,700,000 -74,900,000 60,500,000 29,700,000 23,300,000 -60,200,000 56,500,000 -3,900,000 -3,300,000 -48,000,000 24,700,000 -15,500,000 -7,500,000 -34,100,000  6,800,000 23,000,000 11,800,000 -4,800,000 19,100,000  10,700,000   
          other long-term liabilities, excluding debt
                                              6,900,000 16,200,000 -900,000 5,400,000 -1,500,000   1,200,000 3,100,000 2,300,000 -100,000 1,800,000 1,100,000 5,700,000 1,700,000 1,800,000 3,100,000 -1,000,000 100,000 -31,400,000 -900,000 -2,100,000 -8,700,000 400,000 -21,000,000 -6,000,000 -23,400,000 3,300,000 -1,300,000    -14,700,000  -3,800,000   
          gain on divestitures
                                                                                  
          contributions from noncontrolling interests
                                                                                   
          pension settlement charge
                                                                                   
          loss on divestitures
                                                                 -1,500,000                 
          proceeds received from divestitures
                                                                                   
          net repayments under long-term revolving credit facilities
                                                                      -400,000 -4,600,000           
          loss on divestiture
                                                                                   
          net (repayments) borrowings under long-term revolving credit facilities
                                                                          -25,000,000         
          cash provided used in financing activities
                                                                                   
          tax effects of stock-based compensation plans
                                                                      200,000 1,400,000 9,000,000 1,800,000 2,000,000 2,700,000 1,300,000 2,900,000     
          cash provided by operating activities
                                                                      68,500,000 101,200,000 37,700,000           
          dividend from unconsolidated affiliates
                                                                      500,000             
          cash used in financing activities
                                                                      -124,400,000 -148,800,000 -5,500,000           
          cash used in investing activities
                                                                       42,100,000 -56,000,000           
          (decrease) increase in cash and cash equivalents
                                                                       -7,000,000 -26,000,000           
          net income
                                                                         70,100,000 69,000,000 63,100,000 78,900,000 69,600,000 62,900,000 62,800,000 62,500,000 62,600,000 58,600,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                   
          dividends paid
                                                                          -5,000,000    -5,200,000  -5,400,000   
          payments on cash flow hedges
                                                                                   
          cash from (used in) financing activities
                                                                                   
          assets
                                                                                   
          current assets:
                                                                                   
          cash and cash equivalents
                                                                          69,600,000         
          trade accounts receivable, net of allowance for doubtful accounts of 8.8 and 8.7 at march 31, 2007 and december 31, 2006, respectively
                                                                          252,200,000         
          prepaid expenses
                                                                          31,800,000         
          other current assets
                                                                          19,000,000      10,700,000 -800,000 1,000,000 
          total current assets
                                                                          372,600,000         
          property and equipment:
                                                                                   
          capitalized internal-use software and system costs
                                                                          250,800,000         
          data processing equipment and furniture
                                                                          137,700,000         
          land, buildings and improvements
                                                                          29,600,000         
          total property and equipment
                                                                          418,100,000         
          less accumulated depreciation and amortization
                                                                          -255,700,000         
          goodwill
                                                                          847,200,000         
          indefinite-lived intangible assets
                                                                          95,200,000         
          purchased intangible assets
                                                                          238,300,000         
          prepaid pension asset
                                                                          55,900,000         
          total assets
                                                                          1,831,900,000         
          liabilities and shareholders’ equity
                                                                                   
          current liabilities:
                                                                                   
          short-term debt and current maturities
                                                                          307,000,000         
          accounts payable
                                                                          21,400,000         
          accrued expenses
                                                                          59,500,000         
          accrued salaries and bonuses
                                                                          24,600,000         
          deferred revenue
                                                                          67,400,000         
          income taxes payable
                                                                          37,300,000         
          other current liabilities
                                                                          49,200,000         
          total current liabilities
                                                                          566,400,000         
          long-term debt
                                                                          148,900,000         
          deferred income tax liabilities
                                                                          67,600,000         
          long-term pension and other postretirement benefit liabilities
                                                                          60,100,000         
          other long-term liabilities
                                                                          61,300,000         
          total liabilities
                                                                          904,300,000         
          commitments & contingencies
                                                                                   
          shareholders’ equity:
                                                                                   
          preferred stock, 0.01 par value: authorized shares—10.0; issued shares—none
                                                                                   
          common stock, 1.25 par value: authorized shares—300.0; issued shares—186.5 and 186.3 at march 31, 2007 and december 31, 2006, respectively; outstanding shares—125.0 and 124.7 at march 31, 2007 and december 31, 2006, respectively
                                                                          233,100,000         
          paid-in capital
                                                                          625,200,000         
          retained earnings
                                                                          1,842,500,000         
          accumulated other comprehensive loss
                                                                          -224,300,000         
          treasury stock, at cost, 57.7 shares at march 31, 2007 and december 31, 2006
                                                                          -1,491,300,000         
          stock held by employee benefits trusts, at cost, 3.8 and 3.9 shares at march 31, 2007 and december 31, 2006
                                                                          -57,600,000         
          total shareholders’ equity
                                                                          927,600,000         
          total liabilities and shareholders’ equity
                                                                          1,831,900,000         
          adjustments to reconcile net income to net cash provided by operating activities:
                                                                                   
          gain on sale of investment in intersections inc.
                                                                                   
          loss from discontinued operations
                                                                                   
          asset impairment and related charges
                                                                                   
          proceeds from sale of investments
                                                                                 
          cash from discontinued operations
                                                                                   
          increase (decrease) in cash and cash equivalents
                                                                                   
          net borrowings under long-term revolving credit facilities
                                                                              5,000,000     
          adjustments to reconcile net income to net cash provided by operating activities of continuing operations:
                                                                                   
          income tax benefit from stock plans
                                                                               5,100,000 5,600,000   
          additions to property and equipment
                                                                                -11,200,000   
          additions to other assets
                                                                                   
          net borrowings (payments) under long-term revolving credit facilities
                                                                                   
          cash and cash equivalents, beginning of year
                                                                                 
          cash and cash equivalents, end of year
                                                                                   
          cash flows from operating activities:
                                                                                   
          adjustments to reconcile net income to net cash from operating activities of continuing operations:
                                                                                   
          deferred payments on prior year acquisitions
                                                                                   
          cash (used) provided by investing activities
                                                                                -28,500,000   
          additions to long-term debt
                                                                                180,000,000 100,000 
          cash used by financing activities
                                                                                -79,200,000   
          effect of foreign currency exchange rates on cash
                                                                                1,200,000   
          income from discontinued operations
                                                                                   
          cash used by investing activities
                                                                                   
          cash provided (used) by financing activities
                                                                                  56,900,000 
          restructuring and impairment charges
                                                                                   
          investments in unconsolidated companies
                                                                                   
          proceeds from sale of investments and businesses
                                                                                   
          cash (used) provided by financing activities
                                                                                   
          cash provided (used) by discontinued operations