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Annual report pursuant to Section 13 and 15(d)

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

v3.8.0.1
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Details of Accumulated Other Comprehensive Income (Loss) Components (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
Accumulated other comprehensive loss $ (39.0) $ (21.3) $ (18.0) $ (245.8)
Other Comprehensive Income (Loss), Foreign Currency Translation, Dissolution of Entity 0.0 0.2 0.0 Ìý
Reclassification out of Accumulated Other Comprehensive Income [Member] Ìý Ìý Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
Marketable Securities, Unrealized Gain (Loss) 0.0 0.0 (2.6) Ìý
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax 0.0 1.2 26.9 Ìý
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax 0.0 0.0 (4.3) Ìý
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax 0.0 0.0 (4.6) Ìý
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 26.5 26.5 237.8 Ìý
Accumulated Other Comprehensive Income (Loss) [Member] Ìý Ìý Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax (44.2) (29.8) (10.0) Ìý
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 26.5 26.5 237.8 Ìý
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] Ìý Ìý Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax (0.5) (3.3) 1.9 Ìý
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 0.0 0.7 18.8 Ìý
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Ìý Ìý Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax (13.9) 18.4 (26.4) Ìý
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 0.0 0.2 182.7 Ìý
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Ìý Ìý Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax (29.8) (44.8) 9.1 Ìý
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax 26.5 25.6 40.6 Ìý
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] Ìý Ìý Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
Amortization of prior service (cost) credit 0.4 1.5 1.4 Ìý
Defined Benefit Plan, Amortization of Gain (Loss) 26.9 27.1 27.4 Ìý
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment 0.0 0.0 0.2 Ìý
Defined Benefit Plan, Effect of Deconsolidation 0.0 0.0 15.1 Ìý
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax 26.5 25.6 41.3 Ìý
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax 0.0 0.0 (0.7) Ìý
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax 26.5 25.6 40.6 Ìý
Accumulated Net Unrealized Investment Gain (Loss) [Member] Ìý Ìý Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Ìý (0.1) 5.4 Ìý
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Ìý 0.0 (4.3) Ìý
Accumulated Other-than-Temporary Impairment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] Ìý Ìý Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Loss, before Tax, Including Portion Attributable to Noncontrolling Interest, Available-for-sale Securities 0.0 0.0 (2.0) Ìý
Foreign Currency Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] Ìý Ìý Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax 0.0 0.2 182.7 Ìý
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax 0.0 0.0 182.7 Ìý
Realized Gain (Loss) on Marketable Securities and Other than Temporary Impairment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] Ìý Ìý Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
Other Comprehensive Income (Loss), Realized Holding Gain (Loss) on Securities and Impairment on Securities Arising During Period, Tax 0.0 0.0 0.3 Ìý
Realized Gain Loss On Derivatives [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] Ìý Ìý Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
TaxOnDerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoEarnings 0.0 (0.5) (8.1) Ìý
Derivative, Gain (Loss) on Derivative, Net 0.0 0.7 18.8 Ìý
T-Lock Amortization [Member] | Realized Gain Loss On Derivatives [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] Ìý Ìý Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net 0.0 1.2 0.0 Ìý
Australian Hedge Contracts [Member] | Realized Gain Loss On Derivatives [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] Ìý Ìý Ìý Ìý
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] Ìý Ìý Ìý Ìý
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net $ 0.0 $ 0.0 $ 26.9 Ìý