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INCOME TAXES (Unrecognized Tax Benefits and Related Accrued Estimated Interest and Penalties) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Schedule of Unrecognized Tax Benefits and Related Accrued Estimated Interest and Penalties [Line Items]      
Beginning balance, unrecognized tax benefits     $ (972)
Activity for three months, unrecognized tax benefits 29 6 99
Ending balance, unrecognized tax benefits (838)    
Beginning balance, accrued estimated interest and tax penalties     (104)
Activity for three months, accrued estimated interest and tax penalties 13 1 20
Ending balance, accrued estimated interest and tax penalties $ (70)