Cash and Cash Equivalents and Marketable Securities

12 Months Ended

Dec. 31, 2019

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,
	2019		2018
Cash and cash equivalents:
Cash	$	4,735	$	2,713
Money market funds	12,787		6,792
U.S. government securities	815		90
U.S. government agency securities	444		54
Certificate of deposits and time deposits	217		369
Corporate debt securities	81		1
Total cash and cash equivalents	19,079		10,019
Marketable securities:
U.S. government securities	18,679		13,836
U.S. government agency securities	6,712		8,333
Corporate debt securities	10,385		8,926
Total marketable securities	35,776		31,095
Total cash and cash equivalents and marketable securities	$	54,855	$	41,114

The gross unrealized gains on our marketable securities were $205 million and $24 million as of December 31, 2019 and 2018, respectively. The gross unrealized losses on our marketable securities were $24 million and $357 million as of December 31, 2019 and 2018, respectively. In addition, gross unrealized losses that had been in a continuous loss position for 12 months or longer were $17 million and $332 million as of December 31, 2019 and 2018, respectively. As of December 31, 2019, we considered the unrealized losses 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,
	2019		2018
Due in one year	$	12,803	$	9,746
Due after one year to five years	22,973		21,349
Total	$	35,776	$	31,095