Quarterly report pursuant to Section 13 or 15(d)

ACCUMULATED OTHER COMPREHENSIVE LOSS - Reclassifications Out of Accumulated Other Comprehensive Income (Details)

v3.10.0.1
ACCUMULATED OTHER COMPREHENSIVE LOSS - Reclassifications Out of Accumulated Other Comprehensive Income (Details)
$ in Millions
 9 Months Ended
Sep. 30, 2018
USD ($)
Amortization of pension and other postretirement plan items:  
Total net periodic benefit cost, net of tax $ 11.9
Prior service cost  
Amortization of pension and other postretirement plan items:  
Total net periodic benefit cost, before tax (0.6)
Recognized actuarial loss  
Amortization of pension and other postretirement plan items:  
Total net periodic benefit cost, before tax 16.2
Accumulated Defined Benefit Plans Adjustment Attributable to Parent  
Amortization of pension and other postretirement plan items:  
Total net periodic benefit cost, before tax 15.6
Total net periodic benefit cost, tax benefit (3.7)
Total net periodic benefit cost, net of tax $ 11.9