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ACCUMULATED OTHER COMPREHENSIVE INCOME (Reclassifications Out Of Accumulated Other Comprehensive Income) (Details) $ in Millions | 9 Months Ended
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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).

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