Income Taxes - Schedule of Significant Components of Deferred Tax Assets for Federal and State Income Taxes (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Federal and state net operating loss carryforwards	$ 24	$ 24
Research and development credits carryforwards	22	13
Stock-based compensation	16	10
Depreciation and amortization	6	6
Deferred revenue	19	24
Lease liability	25	25
Capitalized research and development costs	53
Other	7	4
Total deferred tax assets	172	106
Deferred tax liabilities:
Right-of-use assets	(22)	(23)
Total deferred tax liabilities	(22)	(23)
Less valuation allowance	$ (150)	$ (83)