SHAREHOLDERS' EQUITY Details of Accumulated Other Comprehensive Income (Loss) Components (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Details of Accumulated Other Comprehensive Income (Loss) Components [Line Items]
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax	$ 9.4
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss), Tax	(3.0)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	6.4
Available-for-sale Securities, Gross Realized Gain (Loss)	0.1
Available-for-sale Securities, Tax on Realized Gain (Loss)	0
Gain (Loss) on Sale of Securities, Net	0.1
Amount of gain/(loss) recognized in income on derivative	(2.0)
Gain (Loss) on Derivative Instruments, Net, Pretax	(2.9)
Tax on Derivative Instruments Gain/Loss Reclassified from Accumulated OCI in to Earnings	0.9
Total Amount Reclassified from Accumulated Other Comprehensive Income (Loss) During the Period	4.5
Postretirement Benefit Liability [Member]
Details of Accumulated Other Comprehensive Income (Loss) Components [Line Items]
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(0.2)	[1]
Defined Benefit Plan, Amortization of Gains (Losses)	9.6	[1]
Investments Impairment Charge [Member]
Details of Accumulated Other Comprehensive Income (Loss) Components [Line Items]
Available-for-sale Securities, Gross Realized Gain (Loss)	0.1
Australian Hedge Contracts [Member] | Realized Gain Loss On Derivatives [Member]
Details of Accumulated Other Comprehensive Income (Loss) Components [Line Items]
Amount of gain/(loss) recognized in income on derivative	(2.6)
Canadian Hedge Contracts [Member] | Realized Gain Loss On Derivatives [Member]
Details of Accumulated Other Comprehensive Income (Loss) Components [Line Items]
Amount of gain/(loss) recognized in income on derivative	$ (0.3)

[1] These accumulated other comprehensive income components are included in the computation of net periodic benefit cost. See NOTE 12 - PENSIONS AND OTHER POSTRETIREMENT BENEFITS for further information.