Cash and Cash Equivalents, and Marketable Securities

9 Months Ended

Sep. 30, 2020

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):



	September 30, 2020		December 31, 2019
Cash and cash equivalents:
Cash	$	5,501	$	4,735
Money market funds	4,590		12,787
U.S. government securities	1,272		815
U.S. government agency securities	—		444
Certificate of deposits and time deposits	254		217
Corporate debt securities	—		81
Total cash and cash equivalents	11,617		19,079
Marketable securities:
U.S. government securities	21,047		18,679
U.S. government agency securities	11,063		6,712
Corporate debt securities	11,893		10,385
Total marketable securities	44,003		35,776
Total cash and cash equivalents and marketable securities	$	55,620	$	54,855

The gross unrealized gains on our marketable securities were $719 million and $205 million as of September 30, 2020 and December 31, 2019, respectively. The gross unrealized losses on our marketable securities were not material as of September 30, 2020 and December 31, 2019. The allowance for credit losses was not material as of September 30, 2020.

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



	September 30, 2020
Due in one year	$	13,591
Due after one year to five years	30,412
Total	$	44,003