Cash and Cash Equivalents, and Marketable Securities

3 Months Ended

Mar. 31, 2014

Cash and Cash Equivalents, and Marketable Securities [Abstract]

Cash, Cash Equivalents and Marketable Securities

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



	March 31, 2014		December 31, 2013
Cash and cash equivalents:
Cash	$	1,122	$	1,044
Money market funds	1,876		2,279
Total cash and cash equivalents	2,998		3,323
Marketable securities:
U.S. government securities	6,759		5,687
U.S. government agency securities	2,872		2,439
Total marketable securities	9,631		8,126
Total cash, cash equivalents and marketable securities	$	12,629	$	11,449

The gross unrealized gains or losses on our marketable securities as of March 31, 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 March 31, 2014 and December 31, 2013.

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



	March 31, 2014
Due in one year	$	6,581
Due in one to two years	3,050
Total	$	9,631