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FAIR VALUE MEASUREMENTS (Details - Difference between fair values and the aggregate contractual principal amounts of long-term debt) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt, Fair Value	$ 6,019	$ 6,747
Fair Value Option
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Long-term debt, Fair Value	6,019	6,747
Long-term debt, Outstanding Principal Amount	4,656	5,231
Long-term debt, Difference	$ 1,363	$ 1,516

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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