FINANCIAL INSTRUMENTS (Fair Value of Financial Instruments) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Financial Instruments [Line Items]
Fair Value Adjustments	$ (22)		$ (23)
Long-term Debt [Member]
Financial Instruments [Line Items]
Financial Instruments, Cost	(17,517)	[1]	(20,591)	[1]
Financial Instruments, Gross Unrealized Gain	296	[1]	24	[1]
Financial Instruments, Gross Unrealized Loss	(2,246)	[1]	(3,195)	[1]
Financial Instruments, Fair Value	(19,467)	[1]	(23,762)	[1]
Foreign Currency Contract [Member]
Financial Instruments [Line Items]
Financial Instruments, Cost	0	[2]	0
Financial Instruments, Gross Unrealized Gain	45	[2]	34
Financial Instruments, Gross Unrealized Loss	(13)	[2]	(20)
Financial Instruments, Fair Value	32	[2]	14
Commodity Contract [Member]
Financial Instruments [Line Items]
Financial Instruments, Cost	0	[3]	0	[3]
Financial Instruments, Gross Unrealized Gain	11	[3]	26	[3]
Financial Instruments, Gross Unrealized Loss	(2)	[3]	(7)	[3]
Financial Instruments, Fair Value	9	[3]	19	[3]
Interest Rate Contract [Member]
Financial Instruments [Line Items]
Financial Instruments, Cost	0		0
Financial Instruments, Gross Unrealized Gain	0		1
Financial Instruments, Gross Unrealized Loss	(5)		(6)
Financial Instruments, Fair Value	(5)		(5)
Equity Securities [Member]
Financial Instruments [Line Items]
Financial Instruments, Cost	605	[4]	634	[4]
Financial Instruments, Gross Unrealized Gain	196	[4]	109	[4]
Financial Instruments, Gross Unrealized Loss	(4)	[4]	(3)	[4]
Financial Instruments, Fair Value	797	[4]	740	[4]
Marketable Securities [Member]
Financial Instruments [Line Items]
Financial Instruments, Cost	1,808	[4]	1,816	[4]
Financial Instruments, Gross Unrealized Gain	267	[4]	249	[4]
Financial Instruments, Gross Unrealized Loss	(19)	[4]	(4)	[4]
Financial Instruments, Fair Value	2,056	[4]	2,061	[4]
Fixed Income Securities [Member]
Financial Instruments [Line Items]
Financial Instruments, Cost	1,203	[4]	1,182	[4]
Financial Instruments, Gross Unrealized Gain	71	[4]	140	[4]
Financial Instruments, Gross Unrealized Loss	(15)	[4]	(1)	[4]
Financial Instruments, Fair Value	1,259	[4]	1,321	[4]
Us Treasury and Us Government Obligations [Member] | Fixed Income Securities [Member]
Financial Instruments [Line Items]
Financial Instruments, Cost	544	[4],[5]	506	[4],[5]
Financial Instruments, Gross Unrealized Gain	28	[4],[5]	59	[4],[5]
Financial Instruments, Gross Unrealized Loss	(8)	[4],[5]	0	[4],[5]
Financial Instruments, Fair Value	564	[4],[5]	565	[4],[5]
Corporate Bond Securities [Member] | Fixed Income Securities [Member]
Financial Instruments [Line Items]
Financial Instruments, Cost	659	[4]	676	[4]
Financial Instruments, Gross Unrealized Gain	43	[4]	81	[4]
Financial Instruments, Gross Unrealized Loss	(7)	[4]	(1)	[4]
Financial Instruments, Fair Value	$ 695	[4]	$ 756	[4]

[1] Cost includes fair value adjustments of $22 million at December 31, 2013 and $23 million at December 31, 2012

[2] For 2013, includes interest rate derivative component of cross currency swaps, which was less than $1 million at December 31, 2013.

[3] Presented net of cash collateral, as disclosed in Note 11.

[4] Included in “Other investments” in the consolidated balance sheets.

[5] U.S. Treasury obligations, U.S. agency obligations, agency mortgage-backed securities and other municipalities’ obligations.