Quarterly report pursuant to Section 13 or 15(d)

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

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ACCUMULATED OTHER COMPREHENSIVE INCOME (Reclassifications Out Of Accumulated Other Comprehensive Income) (Details)
$ in Millions
 9 Months Ended
Sep. 30, 2016
USD ($)
Prior service cost  
Amortization of pension and other postretirement plan items:  
Total net periodic benefit cost, before tax $ 0.3 [1]
Recognized actuarial loss  
Amortization of pension and other postretirement plan items:  
Total net periodic benefit cost, before tax (11.1) [1]
Accumulated Defined Benefit Plans Adjustment Attributable to Parent  
Amortization of pension and other postretirement plan items:  
Total net periodic benefit cost, before tax (10.8)
Total net periodic benefit cost, tax benefit 4.0
Total net periodic benefit cost, net of tax $ (6.8)
[1] These accumulated other comprehensive income components are included in the computation of net periodic pension cost (See Note 9 Benefit Plans for additional details).