Annual report pursuant to Section 13 and 15(d)

FAIR VALUE OF FINANCIAL INSTRUMENTS (Fair Value, Assets and Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation) (Details)

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Fair Value, Assets and Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Fair Value, Assets Measured On Recurring Basis, Unobservable Input Reconciliation [Roll Forward]    
Beginning balance - January 1 $ 62.4 $ 157.9
Total gains    
Included in earnings 152.3 174.9
Settlements (155.8) (270.4)
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Ending balance - December 31 58.9 62.4
Total gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) on assets still held at the reporting date 152.3 174.9
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]    
Beginning balance - January 1 (11.3) (19.5)
Total gains    
Included in earnings (10.3) (11.3)
Settlements 11.3 19.5
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Ending balance - September 30 (10.3) (11.3)
Total gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) on liabilities still held at the reporting date $ (10.3) $ (11.3)