Cash, Cash Equivalents and Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2023

Cash, Cash Equivalents and Marketable Securities [Abstract]

Schedule of Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Our Cash, Cash Equivalents and Marketable Securities Considered as Available for Sale by Type of Securities

The following table summarizes the amortized cost, gross unrealized gains and losses and the fair value of our cash, cash equivalents and marketable securities, all of which are considered available for sale, by type of securities (in millions):

Types of securities as of December 31, 2023	Amortized Cost		Unrealized Gain		Unrealized Loss		Fair Value
Money market funds	$	85	$	—	$	—	$	85
U.S. treasury securities	213		1		(1)		213
Corporate securities and commercial paper	471		—		—		471
U.S. government agency securities	90		—		—		90
Certificate of deposit	7		—		—		7
Total cash, cash equivalents and marketable securities	$	866	$	1	$	(1)	$	866

Types of securities as of December 31, 2022	Amortized Cost		Unrealized Gain		Unrealized Loss		Fair Value
Money market funds	$	169	$	—	$	—	$	169
U.S. treasury securities	317		—		(3)		314
Corporate securities and commercial paper	635		—		(4)		631
U.S. government agency securities	20		—		—		20
Certificate of deposit	4		—		—		4
Total cash, cash equivalents and marketable securities	$	1,145	$	—	$	(7)	$	1,138

Schedule of Fair Values of Our Cash, Cash Equivalents and Marketable Securities by Location in Consolidated Balance Sheets and Contractual Maturity

The following table summarizes the fair values of our cash, cash equivalents and marketable securities by location in the Consolidated Balance Sheets and contractual maturity (in millions):

	Contractual Maturity	As of December 31,
Location in Consolidated Balance Sheets		2023		2022
Cash and cash equivalents	—	$	127	$	206
Marketable securities	Within one year	632		803
Long-term marketable securities	Between one and three years	107		129
Total cash, cash equivalents and marketable securities		$	866	$	1,138

Reconciliation of Cash, Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents, and restricted cash within the Consolidated Balance Sheets to the total shown in the Consolidated Statements of Cash Flows (in millions):

	As of December 31,
	2023		2022
Cash and cash equivalents	$	127	$	206
Restricted cash (included in Other noncurrent assets)	3		3
Total cash, cash equivalents and restricted cash	$	130	$	209