Variable Interest Entities - Schedule of the Impact of Qualifying LIHTC Investments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Low income housing tax credits
Variable Interest Entity [Line Items]
Amortization of qualifying investments	$ 15	$ 13	$ 30	$ 26
Low income housing tax credits and other tax benefits related to qualifying LIHTC investments	(17)	(14)	(33)	(28)
Other tax benefits related to qualifying LIHTC investments
Variable Interest Entity [Line Items]
Low income housing tax credits and other tax benefits related to qualifying LIHTC investments	$ (3)	$ (3)	$ (5)	$ (5)