Other Liabilities - Schedule of Other Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Other Liabilities Disclosure [Abstract]
Accrued expenses and accounts payable	$ 295	$ 5
Lease liabilities	373	64
Fair value of derivative financial instruments	500	1
Commitments to fund tax credit investments	264	43
Deferred taxes	173	33
Reserve for off-balance sheet credit exposure	91	12
Incentive plan liabilities	199	84
Accrued interest payable	35	8
Other	504	131
Total other liabilities	$ 2,434	$ 381