Quarterly report pursuant to Section 13 or 15(d)

ACCUMULATED OTHER COMPREHENSIVE INCOME (Reclassifications Out Of Accumulated Other Comprehensive Income) (Detail)

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ACCUMULATED OTHER COMPREHENSIVE INCOME (Reclassifications Out Of Accumulated Other Comprehensive Income) (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Amortization of pension and other postretirement plan items:    
Total net periodic benefit cost, net of tax $ 2.1 $ 3.0
Reclassification out of Accumulated Other Comprehensive Income [Member]
   
Amortization of pension and other postretirement plan items:    
Prior service cost 0.1 [1],[2]  
Recognized actuarial loss (3.3) [1],[2]  
Total net periodic benefit cost, before tax (3.2) [1]  
Total net periodic benefit cost, tax benefit 1.2 [1]  
Total net periodic benefit cost, net of tax $ (2.0) [1]  
[1] Amounts in parentheses indicate expense recognized in the Consolidated Statements of Income.
[2] These accumulated other comprehensive income components are included in the computation of net periodic pension cost (See Note 8 Benefit Plans for additional details).