Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Reconciliation of Weighted-Average Outstanding Shares used in Calculations of Basic and Diluted EPS) (Detail)

v2.4.1.9
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Reconciliation of Weighted-Average Outstanding Shares used in Calculations of Basic and Diluted EPS) (Detail)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Disclosure Reconciliation Of Weighted Average Outstanding Shares Used In Calculations Of Basic and Diluted E P S [Abstract]    
Weighted-average shares outstanding (basic) 119.4us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 122.0us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Effect of dilutive securities:    
Stock options and restricted stock units 2.3us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements 2.4us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Weighted-average shares outstanding (diluted) 121.7us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 124.4us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding