Cash, Cash Equivalents and Marketable Securities - 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 (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 1,005	$ 992
Unrealized Gain	0	0
Unrealized Loss	0	0
Fair Value	1,005	992
Money market funds
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	149	120
Unrealized Gain	0	0
Unrealized Loss	0	0
Fair Value	149	120
U.S. treasury securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	231	251
Unrealized Gain	0	0
Unrealized Loss	0	0
Fair Value	231	251
Corporate securities and commercial paper
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	586	592
Unrealized Gain	0	0
Unrealized Loss	0	0
Fair Value	586	592
U.S. government agency securities
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	5	5
Unrealized Gain	0	0
Unrealized Loss	0	0
Fair Value	5	5
Certificate of deposit
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	34	24
Unrealized Gain	0	0
Unrealized Loss	0	0
Fair Value	$ 34	$ 24