Cash and Cash Equivalents and Marketable Securities

12 Months Ended

Dec. 31, 2021

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,
	2021		2020
Cash and cash equivalents:
Cash	$	7,308	$	6,488
Money market funds	8,850		9,755
U.S. government securities	25		1,016
U.S. government agency securities	108		—
Certificates of deposit and time deposits	250		305
Corporate debt securities	60		12
Total cash and cash equivalents	16,601		17,576
Marketable securities:
U.S. government securities	10,901		20,921
U.S. government agency securities	5,927		11,698
Corporate debt securities	14,569		11,759
Total marketable securities	31,397		44,378
Total cash and cash equivalents and marketable securities	$	47,998	$	61,954

The gross unrealized gains on our marketable securities were not material and $641 million as of December 31, 2021 and 2020, respectively. The gross unrealized losses and the allowance for credit losses on our marketable securities were not material as of December 31, 2021 and 2020.

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


	December 31, 2021
Due within one year	$	3,352
Due after one year to five years	28,045
Total	$	31,397