FINANCIAL INSTRUMENTS (Investments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Financial Instruments [Abstact]
Investing Results, Proceeds from sales of available-for-sale securities			$ 401	$ 631
Investing Results, Gross realized gains			30	39
Investing Results, Gross realized losses			(10)	(13)
Contractual Maturities of Debt Securities, Within one year, Amortized Cost	27		27
Contractual Maturities of Debt Securities, One to five years, Amortized Cost	471		471
Contractual Maturities of Debt Securities, Six to ten years, Amortized Cost	498		498
Contractual Maturities of Debt Securities, After ten years, Amortized Cost	207		207
Contractual Maturities of Debt Securities, Total, Amortized Cost	1,203		1,203
Contractual Maturities of Debt Securities, Within one year, Fair Value	28		28
Contractual Maturities of Debt Securities, One to five years, Fair Value	522		522
Contractual Maturities of Debt Securities, Six to ten years, Fair Value	553		553
Contractual Maturities of Debt Securities, After ten years, Fair Value	250		250
Contractual Maturities of Debt Securities, Total, Fair Value	1,353		1,353
Held-to-maturity securities	1,050		1,050		1,836
Investments in money market funds	455		455		1,090
Net unrealized gain recognized on trading securities	$ 1	$ 11	$ 29	$ 25

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Amount of available-for-sale debt securities at cost, net of adjustments, maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.