CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES (DETAILS) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Document Period End Date	Jun. 30, 2013
Cash and Cash Equivalents [Abstract]
Cash	$ 4		$ 4		$ 28
Money market funds and other securities	53		53		94
Cash and cash equivalents	57	35	57	35	122	102
Available-for-sale Securities, Current [Abstract]
Marketable securities, Cost Basis	1,375		1,375		1,119
Marketable securities, Unrealized Gains			5		12
Marketable securities, Unrealized Losses			(8)		(1)
Marketable securities, Fair Value	1,372		1,372		1,130
Cash and marketables securities, Cost Basis	1,432		1,432		1,241
Total cash and marketable securities	1,429		1,429		1,252
Available-for-sale Securities, Activity [Abstract]
Proceeds from sales and maturities	226	242	465	430
Gross realized gains	1	2	3	4
Gross realized losses	0	0	(1)	(1)
U.S. government and agency securities [Member]
Available-for-sale Securities, Current [Abstract]
Marketable securities, Cost Basis	412		412		271
Marketable securities, Unrealized Gains			0		1
Marketable securities, Unrealized Losses			(3)		0
Marketable securities, Fair Value	409		409		272
Foreign government bonds [Member]
Available-for-sale Securities, Current [Abstract]
Marketable securities, Cost Basis	24		24		50
Marketable securities, Unrealized Gains			0		1
Marketable securities, Unrealized Losses			0		0
Marketable securities, Fair Value	24		24		51
Asset-backed securities [Member]
Available-for-sale Securities, Current [Abstract]
Marketable securities, Cost Basis	120		120		61
Marketable securities, Unrealized Gains			0		1
Marketable securities, Unrealized Losses			0		0
Marketable securities, Fair Value	120		120		62
Mortgage-backed securities [Member]
Available-for-sale Securities, Current [Abstract]
Marketable securities, Cost Basis	141		141		137
Marketable securities, Unrealized Gains			1		1
Marketable securities, Unrealized Losses			(1)		(1)
Marketable securities, Fair Value	141		141		137
Corporate notes and bonds [Member]
Available-for-sale Securities, Current [Abstract]
Marketable securities, Cost Basis	657		657		577
Marketable securities, Unrealized Gains			4		8
Marketable securities, Unrealized Losses			(4)		0
Marketable securities, Fair Value	657		657		585
Municipal securities [Member]
Available-for-sale Securities, Current [Abstract]
Marketable securities, Cost Basis	21		21		23
Marketable securities, Unrealized Gains			0		0
Marketable securities, Unrealized Losses			0		0
Marketable securities, Fair Value	$ 21		$ 21		$ 23