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FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS (Basis of Fair Value Measurements on a Nonrecurring Basis) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Other Asset Impairment Charges $ (94)
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
 
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Long-lived assets and other assets $ 0