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Quarterly report pursuant to Section 13 or 15(d)

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details of Accumulated Other Comprehensive Income (Loss) Components) (Details)

v3.19.1
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details of Accumulated Other Comprehensive Income (Loss) Components) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Reclassification out of Accumulated Other Comprehensive Income [Member] Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net $ 0.3 $ (0.1)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 5.7 6.1
Realized Gain Loss On Derivatives [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý
TaxOnDerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoEarnings (0.1) 0.0
Amount of gain/(loss) recognized in income on derivative 0.2 (0.1)
Accumulated Defined Benefit Plans Adjustment [Member] Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 5.5 6.2
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý
Prior service credits (0.2) (0.3)
Net actuarial loss 7.2 6.5
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax 7.0 6.2
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax (1.5) 0.0
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax $ 5.5 $ 6.2