Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets
Accruals and reserves	$ 132	$ 104
Stock-based compensation	74	36
Tax credits carryforward	209	237
Operating lease liabilities	115	101
Capitalized research and development	619	0
Net operating loss carryforward	660	1,050
Other	88	0
Total gross deferred tax assets	1,897	1,528
Less: Valuation allowance	(1,655)	(1,398)
Total deferred tax assets net of valuation allowance	242	130
Deferred tax liabilities
Property and equipment and intangible assets	(134)	(36)
ROU assets	(94)	(83)
Deferred contract costs	(17)	(15)
Total gross deferred tax liabilities	(245)	(134)
Other Liabilities
Deferred tax liabilities
Net deferred tax liabilities	$ (3)	$ (4)