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DEBT OBLIGATIONS Debt Obligations - Future Maturities (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Debt Instrument  
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months $ 250
Long-term Debt, Maturities, Repayments of Principal in Year Two 0
Long-term Debt, Maturities, Repayments of Principal in Year Three 455
Long-term Debt, Maturities, Repayments of Principal in Year Four 0
Long-term Debt, Maturities, Repayments of Principal in Year Five 300
Long-term Debt, Maturities, Repayments of Principal after Year Five 616
Long Term Debt Maturities Repayments Of Principal Total $ 1,621