Cash, Cash Equivalents and Marketable Securities

9 Months Ended

Sep. 30, 2014

Cash and Cash Equivalents [Abstract]

Cash, Cash Equivalents and Marketable Securities

The following table sets forth the cash, cash equivalents and marketable securities (in millions):



	September 30, 2014		December 31, 2013
Cash and cash equivalents:
Cash	$	1,344	$	1,044
Cash equivalents:
Money market funds	7,655		2,279
Total cash and cash equivalents	8,999		3,323
Marketable securities:
U.S. government securities	2,062		5,687
U.S. government agency securities	2,330		2,439
Corporate debt securities	859		—
Total marketable securities	5,251		8,126
Total cash, cash equivalents and marketable securities	$	14,250	$	11,449

The gross unrealized gains or losses on our marketable securities as of September 30, 2014 and December 31, 2013 were not significant. In addition, there were no securities in a continuous loss position for 12 months or longer as of September 30, 2014 and December 31, 2013.

The following table classifies our marketable securities by contractual maturities (in millions):



	September 30, 2014
Due in one year	$	2,747
Due in one to two years	2,504
Total	$	5,251