Goodwill and Other Intangible Assets - Schedule of Goodwill and Other Intangible Asset Balances (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Goodwill
Beginning Balance	$ 276	$ 63
Additions	43	213
Ending Balance	319	276
Intangible Assets
Beginning Balance, Cost	180	0
Additions	18	180
Ending Balance, Cost	198	180
Beginning Balance, Accumulated Amortization	(5)	0
Amortization	(10)	(5)
Ending Balance, Accumulated Amortization	(15)	(5)
Net Carrying Amount	183	175	$ 0
Total Goodwill and Other Intangible Assets - Net
Beginning Balance	451	63
Additions	61	393
Amortization	(10)	(5)
Ending Balance	$ 502	$ 451