Annual report pursuant to Section 13 and 15(d)

INVESTMENTS (Details 6)

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INVESTMENTS (Details 6) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2012
Investments Disclosure [Abstract]  
Available-for-sale securities, within 1 year, cost $ 1,003
Available-for-sale securities, within 1 year, fair value 1,001
Available-for-sale securities, after 1 years through 5 years, cost 1,590
Available-for-sale securities, after 1 years through 5 years, fair value 1,598
Available-for-sale securities, after 5 years through 10 years, cost 270
Available-for-sale securities, after 5 years through 10 years, fair value 299
Available-for-sale securities, after 10 years, cost 306
Available-for-sale securities, after 10 years, fair value 307
Held-to-maturity securities, within 1 year, amortized cost 0
Held-to-maturity securities, within 1 year, fair value 0
Held-to-maturity securities, after 1 year through 5 years, amortized cost 0
Held-to-maturity securities, after 1 year through 5 years, fair value 0
Held-to-maturity securities, after 5 years through 10 years, amortized cost 0
Held-to-maturity securities, after 5 years through 10 years, fair value 0
Held-to-maturity securities, after 10 years, amortized cost 0
Held-to-maturity securities, after 10 years, fair value $ 0