Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounts Payable and Accrued Liabilities [Abstract]
Unfunded commitments for investment in qualified affordable housing projects	$ 973	$ 869
Accounts payable	509	435
Employee compensation and benefits	409	424
Reserves for insurance losses and loss adjustment expenses	140	119	$ 122	$ 129
Operating lease liabilities	113	137
Deferred revenue	103	169
Other liabilities	479	495
Total accrued expenses and other liabilities	$ 2,726	$ 2,648
Operating lease, liability, statement of financial position [Extensible Enumeration]	Total accrued expenses and other liabilities	Total accrued expenses and other liabilities