Cash and Cash Equivalents, and Marketable Securities

12 Months Ended

Dec. 31, 2015

Cash and Cash Equivalents, and Marketable Securities [Abstract]

Cash and Cash Equivalents, and Marketable Securities

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



	December 31,
	2015		2014
Cash and cash equivalents:
Cash	$	1,703	$	2,162
Money market funds	2,409		2,153
U.S. government securities	597		—
U.S. government agency securities	145		—
Corporate debt securities	53		—
Total cash and cash equivalents	4,907		4,315
Marketable securities:
U.S. government securities	5,948		2,830
U.S. government agency securities	4,475		2,710
Corporate debt securities	3,104		1,344
Total marketable securities	13,527		6,884
Total cash and cash equivalents, and marketable securities	$	18,434	$	11,199

The gross unrealized gains or losses on our marketable securities as of December 31, 2015 and 2014 were not significant. In addition, the gross unrealized loss that had been in a continuous loss position for 12 months or longer was not significant as of December 31, 2015. There was no such loss as of December 31, 2014. As of December 31, 2015, we considered the decreases in market value on our marketable securities to be temporary in nature and did not consider any of our investments to be other-than-temporarily impaired.

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



	December 31,
	2015		2014
Due in one year	$	5,029	$	3,422
Due in one to two years	8,498		3,462
Total	$	13,527	$	6,884