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SHAREHOLDERS' EQUITY Details of Accumulated Other Comprehensive Income (Loss) Components (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |  |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax |  | $ 7.4 |  |  | $ 11.0 |  |  | $ 19.9 | $ 233.6
Accumulated Defined Benefit Plans Adjustment [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |  |  |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax |  | 6.7 | $ 6.3 | $ 6.3 | 6.6 | $ (1.6) | $ 30.3 |  |
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |  |  |  |  |  |
Prior service credits | [1] | (0.4) |  |  | 1.1 |  |  | (1.2) | 0.5
Defined Benefit Plan, Amortization of Gains (Losses) | [1] | 7.1 |  |  | 5.6 |  |  | 20.4 | 19.5
Curtailments/settlements | [1] | 0.0 |  |  | (0.1) |  |  | 0.0 | 0.2
Defined Benefit Plan, Effect of Deconsolidation | [2] | 0.0 |  |  | 0.0 |  |  | 0.0 | 15.1
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax |  | 6.7 |  |  | 6.6 |  |  | 19.2 | 35.3
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Tax |  | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) |  | 6.7 |  |  | 6.6 |  |  | 19.2 | 35.3
Accumulated Other-than-Temporary Impairment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |  |  |  |  |  |
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 |  |  | 0.0 | (3.2)
Foreign Currency Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |  |  |  |  |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax | [2] | 0.0 |  |  | 0.0 |  |  | 0.0 | 182.7
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax |  | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax |  | 0.0 |  |  | 0.0 |  |  | 0.0 | 182.7
Realized Gain (Loss) on Marketable Securities and Other than Temporary Impairment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |  |  |  |  |  |
Other Comprehensive Income (Loss), Realized Holding Gain (Loss) on Securities and Impairment on Securities Arising During Period, Tax |  | 0.0 |  |  | 0.0 |  |  | 0.0 | 0.3
Other Comprehensive Income (Loss), Realized Holding Gain (Loss) on Securities and Impairment on Securities Arising During Period, net of tax |  | 0.0 |  |  | 0.0 |  |  | 0.0 | (2.9)
Realized Gain Loss On Derivatives [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |  |  |  |  |  |
Tax on Derivative Instruments Gain/Loss Reclassified from Accumulated OCI in to Earnings |  | 0.5 |  |  | (1.9) |  |  | (0.5) | (7.9)
Amount of (gain)/loss recognized in income on derivative |  | 0.7 |  |  | 4.4 |  |  | 0.7 | 18.5
Treasury Locks Amortization [Member] | Realized Gain Loss On Derivatives [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |  |  |  |  |  |
Derivative Instruments, (Gain) Loss Reclassified from Accumulated OCI into Income, Effective Portion, Net |  | 1.2 |  |  | 0.0 |  |  | 1.2 | 0.0
Australian Hedge Contracts [Member] | Realized Gain Loss On Derivatives [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items] |  |  |  |  |  |  |  |  |
Derivative Instruments, (Gain) Loss Reclassified from Accumulated OCI into Income, Effective Portion, Net |  | $ 0.0 |  |  | $ 6.3 |  |  | $ 0.0 | $ 26.4
[1] | These accumulated other comprehensive income components are included in the computation of net periodic benefit cost. See NOTE 7 - PENSIONS AND OTHER POSTRETIREMENT BENEFITS for further information.
[2] | Represents Canadian accumulated currency translation adjustments that were deconsolidated. See NOTE 14 - DISCONTINUED OPERATIONS for further information.

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