Quarterly report pursuant to Section 13 or 15(d)

SHAREHOLDERS' EQUITY Details of Accumulated Other Comprehensive Income (Loss) Components (Details)

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SHAREHOLDERS' EQUITY Details of Accumulated Other Comprehensive Income (Loss) Components (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 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 $ 11.1 $ 20.5
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss), Tax (3.0) (6.0)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) 8.1 14.5
Available-for-sale Securities, Gross Realized Gain (Loss) 4.1 4.2
Available-for-sale Securities, Tax on Realized Gain (Loss) (0.5) (0.5)
Gain (Loss) on Sale of Securities, Net 3.6 3.7
Amount of gain/(loss) recognized in income on derivative (2.2) (4.2)
Gain (Loss) on Derivative Instruments, Net, Pretax (3.1) (6.0)
Tax on Derivative Instruments Gain/Loss Reclassified from Accumulated OCI in to Earnings 0.9 1.8
Total Amount Reclassified from Accumulated Other Comprehensive Income (Loss) During the Period 9.5 14.0
Postretirement Benefit Liability [Member]
    
Details of Accumulated Other Comprehensive Income (Loss) Components [Line Items]    
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) (0.1) [1] (0.3) [1]
Defined Benefit Plan, Amortization of Gains (Losses) 11.2 [1] 20.8 [1]
Gain (Loss) on Investments, Including Marketable Securities and Investments Held at Cost, Categories of Investments [Domain]
    
Details of Accumulated Other Comprehensive Income (Loss) Components [Line Items]    
Available-for-sale Securities, Gross Realized Gain (Loss) (1.1) (1.1)
Investments Impairment Charge [Member]
    
Details of Accumulated Other Comprehensive Income (Loss) Components [Line Items]    
Available-for-sale Securities, Gross Realized Gain (Loss) 5.2 5.3
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 (3.7) (6.3)
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 $ 0.6 $ 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.