Quarterly report pursuant to Section 13 or 15(d)

Reclassifications Out Of Accumulated Other Comprehensive Income (Detail)

v2.4.0.8
Reclassifications Out Of Accumulated Other Comprehensive Income (Detail) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Amortization of pension and other postretirement plan items:        
Total net periodic benefit cost, net of tax $ (2.3) $ (2.8) $ (5.3) $ (6.2)
Reclassification out of Accumulated Other Comprehensive Income [Member]
        
Amortization of pension and other postretirement plan items:        
Prior service cost     (0.4) [1],[2]  
Recognized actuarial loss     (12.4) [1],[2]  
Total net periodic benefit cost, before tax     (12.8) [1]  
Total net periodic benefit cost, tax benefit     4.8 [1]  
Total net periodic benefit cost, net of tax     $ (8.0) [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).