CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES (Tables)

6 Months Ended

Jun. 30, 2016

Cash, Cash Equivalents, and Short-term Investments [Abstract]

Schedule of Cash, Cash Equivalents and Short-term Investments

Components for cash, cash equivalents and marketable securities (in millions):

June 30, 2016	Cost Basis		Unrealized Gains		Unrealized Losses			Fair Value
Cash	$	—	$	—	$	—		$	—
Cash equivalents	81		—		—			81
Cash and cash equivalents	81		—		—			81
U.S. government and agency securities	430		3		—			433
Foreign government bonds	32		—		—			32
Asset-backed securities	160		1		—			161
Mortgage-backed securities	112		1		—			113
Corporate notes and bonds	762		9		(1		)	770
Municipal securities	17		—		—			17
Marketable securities	1,513		14		(1		)	1,526
Total	$	1,594	$	14	$	(1	)	$	1,607

December 31, 2015	Cost Basis		Unrealized Gains		Unrealized Losses			Fair Value
Cash	$	4	$	—	$	—		$	4
Cash equivalents	69		—		—			69
Cash and cash equivalents	73		—		—			73
U.S. government and agency securities	254		—		(1		)	253
Foreign government bonds	31		—		—			31
Asset-backed securities	130		—		—			130
Mortgage-backed securities	117		—		(1		)	116
Corporate notes and bonds	711		1		(4		)	708
Municipal securities	17		—		—			17
Marketable securities	1,260		1		(6		)	1,255
Total	$	1,333	$	1	$	(6	)	$	1,328

Schedule of Realized Gain (Loss)

Activity for marketable securities (in millions):  

	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
Proceeds from sales and maturities	$	217		$	417		$	357		$	676
Gross realized gains	2			1			2			2
Gross realized losses	(1		)	(1		)	(1		)	(2		)

Schedule of Debt Investment Maturities

Maturities for marketable securities (in millions):

June 30, 2016	Cost Basis		Fair Value
Due in one year or less	$	363	$	363
Due after one year through five years	1,134		1,147
Due after five years through 10 years	16		16
Due after 10 years	—		—
Total	$	1,513	$	1,526