Cash and Cash Equivalents, and Marketable Securities

12 Months Ended

Dec. 31, 2016

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,
	2016		2015
Cash and cash equivalents:
Cash	$	1,364	$	1,703
Money market funds	5,409		2,409
U.S. government securities	1,463		597
U.S. government agency securities	667		145
Corporate debt securities	—		53
Total cash and cash equivalents	8,903		4,907
Marketable securities:
U.S. government securities	7,130		5,948
U.S. government agency securities	7,411		4,475
Corporate debt securities	6,005		3,104
Total marketable securities	20,546		13,527
Total cash and cash equivalents, and marketable securities	$	29,449	$	18,434

The gross unrealized gains or losses on our marketable securities as of December 31, 2016 and 2015 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, 2016 and 2015. As of December 31, 2016, 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,
	2016		2015
Due in one year	$	4,966	$	5,029
Due in one to five years	15,580		8,498
Total	$	20,546	$	13,527