Cash and Cash Equivalents, and Marketable Securities

3 Months Ended

Mar. 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):



	March 31, 2016		December 31, 2015
Cash and cash equivalents:
Cash	$	2,004	$	1,703
Money market funds	4,452		2,409
U.S. government securities	—		597
U.S. government agency securities	—		145
Corporate debt securities	—		53
Total cash and cash equivalents	6,456		4,907
Marketable securities:
U.S. government securities	5,183		5,948
U.S. government agency securities	4,815		4,475
Corporate debt securities	4,167		3,104
Total marketable securities	14,165		13,527
Total cash and cash equivalents, and marketable securities	$	20,621	$	18,434

The gross unrealized gains or losses on our marketable securities as of March 31, 2016 and December 31, 2015 were not significant. In addition, the gross unrealized losses that had been in a continuous loss position for 12 months or longer were not significant as of March 31, 2016 and December 31, 2015. As of March 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):



	March 31, 2016
Due in one year	$	4,920
Due in one to three years	9,245
Total	$	14,165