CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES (Tables)

9 Months Ended

Sep. 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):

September 30, 2016	Cost Basis		Unrealized Gains		Unrealized Losses			Fair Value
Cash	$	16	$	—	$	—		$	16
Cash equivalents	1,802		—		—			1,802
Cash and cash equivalents	1,818		—		—			1,818
U.S. government and agency securities	330		2		—			332
Foreign government bonds	36		—		—			36
Asset-backed securities	153		1		—			154
Mortgage-backed securities	102		—		—			102
Corporate notes and bonds	760		8		(1		)	767
Municipal securities	17		—		—			17
Marketable securities	1,398		11		(1		)	1,408
Total	$	3,216	$	11	$	(1	)	$	3,226

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 September 30,				Nine Months Ended September 30,
	2016		2015		2016			2015
Proceeds from sales and maturities	$	280	$	142	$	638		$	818
Gross realized gains	—		—		2			2
Gross realized losses	—		—		(1		)	(2		)

Schedule of Debt Investment Maturities

Maturities for marketable securities (in millions):

September 30, 2016	Cost Basis		Fair Value
Due in one year or less	$	283	$	283
Due after one year through five years	1,108		1,118
Due after five years through 10 years	7		7
Due after 10 years	—		—
Total	$	1,398	$	1,408