Goodwill and Other Intangible Assets - Intangible Assets and Goodwill (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Goodwill
Beginning balance	$ 276
Additions	76
Ending balance	352
Intangible Assets
Beginning balance, cost	180
Intangible assets acquired	18
Ending balance, cost	198
Beginning balance, accumulated amortization	(5)
Amortization	(8)
Ending balance, accumulated amortization	(13)
Net carrying amount	185	$ 175
Total Goodwill and Other Intangible Assets - Net
Beginning balance	451
Additions	94
Amortization	(8)
Ending balance	$ 537