CASH, CASH EQUIVALENTS, AND INVESTMENTS (Tables)

12 Months Ended

Dec. 31, 2021

Cash and Cash Equivalents [Abstract]

Schedule of Available-for-sale Securities Reconciliation

The amortized cost, gross unrealized gains and losses, and fair value of cash, cash equivalents, and marketable securities as of December 31, 2021 and 2020, are as follows (in millions):

	December 31, 2021
	Cost Basis		Unrealized Gains		Unrealized Losses		Fair Value		Cash and Cash Equivalents		Marketable Securities
Cash	$	81	$	—	$	—	$	81	$	81	$	—
Money market funds	1,350		—		—		1,350		1,350		—
Time deposit	300		—		—		300		300		—
Corporate debt securities	208		—		(1)		207		—		207
Mutual fund	200		—		—		200		—		200
Equity securities	46		—		—		46		—		46
Commercial paper	15		—		—		15		—		15
Asset-backed securities	7		—		—		7		—		7
Certificates of deposit	5		—		—		5		—		5
Sovereign bonds	4		—		—		4		—		4
Total	$	2,216	$	—	$	(1)	$	2,215	$	1,731	$	484

	December 31, 2020
	Cost Basis		Unrealized Gains		Unrealized Losses		Fair Value		Cash and Cash Equivalents		Marketable Securities
Cash	$	710	$	—	$	—	$	710	$	710	$	—
Money market funds	618		—		—		618		618		—
Commercial paper	81		—		—		81		81		—
Corporate debt securities	30		—		—		30		4		26
Asset-backed securities	13		—		—		13		—		13
U.S. agency securities	7		—		—		7		—		7
U.S. Treasury securities	2		—		—		2		—		2
Total	$	1,461	$	—	$	—	$	1,461	$	1,413	$	48

Schedule of Unrealized Loss on Investments

A summary of debt securities with unrealized losses aggregated by period of continuous unrealized loss is as follows (in millions):

	Less than 12 Months				12 Months or Greater				Total
December 31, 2021	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Money market funds	$	259	$	—	$	—	$	—	$	259	$	—
Corporate debt securities	207		(1)		—		—		207		(1)
Commercial paper	15		—		—		—		15		—
Asset-backed securities	7		—		—		—		7		—
Certificates of deposit	5		—		—		—		5		—
Sovereign bonds	4		—		—		—		4		—
Total	$	497	$	(1)	$	—	$	—	$	497	$	(1)

	Less than 12 Months				12 Months or Greater				Total
December 31, 2020	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Commercial paper	$	19	$	—	$	—	$	—	$	19	$	—
Corporate debt securities	7		—		—		—		7		—
Asset-backed securities	5		—		—		—		5		—
Total	$	31	$	—	$	—	$	—	$	31	$	—

Investments Classified by Contractual Maturity Date

The scheduled contractual maturities of debt securities as of December 31, 2021 are as follows (in millions):

December 31, 2021	Fair Value		Within 1 Year		After 1 Year through 5 Years
Corporate-debt securities	$	207	$	71	$	136
Commercial paper	15		15		—
Asset-backed securities	7		7		—
Certificates of deposit	5		5		—
Sovereign bonds	4		4		—
Total	$	238	$	102	$	136