Accrued Expenses and Other Liabilities (Schedule of Accrued Expenses and Other Liabilities) (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Accounts Payable and Accrued Liabilities [Abstract]
Accounts payable	$ 774	$ 584
Unfunded commitments for investment in qualified affordable housing projects	714	724
Employee compensation and benefits	302	512
Deferred revenue	172	176
Operating lease liabilities	135	175
Reserves for insurance losses and loss adjustment expenses	123	122	$ 132	$ 129
Finance lease liabilities	42	0
Other liabilities	510	460
Total accrued expenses and other liabilities	$ 2,772	$ 2,753
Operating lease, liability, statement of financial position [Extensible Enumeration]	Total accrued expenses and other liabilities	Total accrued expenses and other liabilities
Finance lease, liability, statement of financial position [Extensible Enumeration]	Total accrued expenses and other liabilities	Total accrued expenses and other liabilities