Annual report pursuant to Section 13 and 15(d)

QUARTERLY FINANCIAL DATA (Additional Information) (Detail)

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QUARTERLY FINANCIAL DATA (Additional Information) (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended 3 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2013
U S Consumer Information Solutions [Member]
Mar. 31, 2013
Talent Management Services [Member]
Equifax Settlement Services [Member]
Quarterly Financial Information [Line Items]          
Defined Benefit Plan Increase To The Service Benefit   9.00%      
Benefits paid   $ 62.6      
Pension Settlement Charge 0 38.7 0    
Proceeds From Divestiture Of Businesses $ 47.5 $ 2.5 $ 2.5 $ 47.5 $ 47.5
Vested Terminated Percentage   64.00%