Annual report pursuant to Section 13 and 15(d)

ACQUISITIONS AND INVESTMENTS (Acquired Intangible Assets Fair Value and Weighted-Average Useful Life) (Detail)

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ACQUISITIONS AND INVESTMENTS (Acquired Intangible Assets Fair Value and Weighted-Average Useful Life) (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]    
Identifiable intangible assets $ 46.4 [1] $ 524.7 [1]
Weighted-average useful life 6 years 10 months 24 days 14 years 8 months 12 days
Customer Relationships [Member]
    
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]    
Identifiable intangible assets 27.6 4.5
Weighted-average useful life 8 years 3 months 18 days 8 years 8 months 12 days
Acquired software and technology [Member]
    
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]    
Identifiable intangible assets 4.2 0.7
Weighted-average useful life 4 years 3 months 18 days 5 years 8 months 12 days
Purchased data files [Member]
    
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]    
Identifiable intangible assets 8.4 508.8
Weighted-average useful life 5 years 15 years
Noncompete Agreements [Member]
    
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]    
Identifiable intangible assets 3.1 10.3
Weighted-average useful life 4 years 4 years 10 months 24 days
Tradenames and Other [Member]
    
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]    
Identifiable intangible assets $ 3.1 $ 0.4
Weighted-average useful life 6 years 3 months 18 days 5 years
[1] Identifiable intangible assets are further disaggregated in the following table.