BENEFIT PLANS - AMOUNTS RECOGNIZED IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) - USD ($) $ in Millions |
Dec. 31, 2016 |
Dec. 31, 2015 |
---|---|---|
Pension Plans | ||
Schedule of Pension and Other Postretirment Benefits Recgonized in Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
Net actuarial loss | $ 115.3 | $ 100.1 |
Net prior service cost | (1.8) | (2.4) |
Before tax AOCI | 113.5 | 97.7 |
Less: Deferred taxes | 31.2 | 26.2 |
Net of tax AOCI | 82.3 | 71.5 |
Other Postemployment Benefits | ||
Schedule of Pension and Other Postretirment Benefits Recgonized in Accumulated Other Comprehensive Income (Loss) [Line Items] | ||
Net actuarial loss | 3.5 | 2.4 |
Net prior service cost | 0.0 | 0.0 |
Before tax AOCI | 3.5 | 2.4 |
Less: Deferred taxes | 1.3 | 0.9 |
Net of tax AOCI | $ 2.2 | $ 1.5 |