Annual report pursuant to Section 13 and 15(d)

BENEFIT PLANS (Reconciliation of Beginning and Ending Balances for Plan Assets Valued using Significant Unobservable Inputs) (Detail)

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BENEFIT PLANS (Reconciliation of Beginning and Ending Balances for Plan Assets Valued using Significant Unobservable Inputs) (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Private Equity
  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Balance at December 31, 2012 $ 36.0
Return on plan assets:  
Unrealized 0
Realized 2.1
Purchases 7.1
Sales (6.5)
Balance at December 31, 2013 38.7
Hedge Funds
  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Balance at December 31, 2012 89.1
Return on plan assets:  
Unrealized 8.2
Realized 2.6
Purchases 0
Sales (17.0)
Balance at December 31, 2013 82.9
Real Assets
  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Balance at December 31, 2012 11.1
Return on plan assets:  
Unrealized 0
Realized 1.2
Purchases 0.4
Sales (0.5)
Balance at December 31, 2013 $ 12.2