Goodwill and Other Intangible Assets - Intangible Assets and Goodwill (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Goodwill
Beginning Balance	$ 276
Additions	101
Ending Balance	377
Intangible Assets
Beginning Balance, Cost	180
Intangible assets acquired	10
Ending Balance, Cost	190
Beginning Balance, Accumulated Amortization	(5)
Amortization	(5)
Ending Balance, Accumulated Amortization	(10)
Net Carrying Amount	180	$ 175
Total Goodwill and Other Intangible Assets - Net
Beginning Balance	451
Additions	111
Amortization	(5)
Ending Balance	$ 557