Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Accounts Payable and Accrued Liabilities [Abstract]
Unfunded commitments for investment in qualified affordable housing projects	$ 861	$ 869
Accounts payable	515	435
Employee compensation and benefits	303	424
Deferred revenue	165	169
Reserves for insurance losses and loss adjustment expenses	152	119	$ 131	$ 122
Operating lease liabilities	122	137
Other liabilities	513	495
Total accrued expenses and other liabilities	$ 2,631	$ 2,648
Operating lease, liability, statement of financial position [Extensible Enumeration]	Total accrued expenses and other liabilities	Total accrued expenses and other liabilities