Property and Equipment - Summary of Property and Equipment, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Total	$ 58	$ 50
Less: Accumulated depreciation and amortization	(23)	(18)
Property and equipment, net	$ 35	32
Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Life	3 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Life	10 years
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Useful Life	10 years
Total	$ 34	32
Scientific Equipment
Property, Plant and Equipment [Line Items]
Useful Life	5 years
Total	$ 17	14
Furniture and Equipment
Property, Plant and Equipment [Line Items]
Total	$ 3	2
Furniture and Equipment | Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful Life	3 years
Furniture and Equipment | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful Life	5 years
Construction in Progress
Property, Plant and Equipment [Line Items]
Total	$ 4	$ 2