Annual report pursuant to Section 13 and 15(d)

FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS (Details 4)

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FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS (Details 4) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term Debt $ 20,178 $ 16,313
Level 2
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term Debt, Fair Value $ 20,352 $ 17,157