Goodwill and Other Intangible Assets - Schedule of Goodwill and Other Intangible Asset Balances (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Goodwill
Beginning balance	$ 239	$ 325
Additions	5	22
Impairment	(164)	(108)	$ 0
Ending balance	80	239	325
Intangible Assets
Beginning balance, cost	231	206
Beginning balance, accumulated amortization	(37)	(25)
Beginning balance, net carrying amount	194	181
Additions	5	25
Amortization	(12)	(12)
Ending balance, cost	236	231	206
Ending balance, accumulated amortization	(49)	(37)	(25)
Ending balance, net carrying amount	187	194	181
Total Goodwill and Other Intangible Assets - Net
Beginning balance	433	506
Additions	10	47
Amortization	(12)	(12)
Impairment	(164)	(108)	0
Ending balance	$ 267	$ 433	$ 506