Commitments and Contingent Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Unused commitments to extend credit to customers	$ 774
Reserve for Credit Losses, Unused Commitments	25
Guarantor Obligations
Guarantees, maximum potential amount of future payments	25	$ 26
Assets	33,112	31,957	$ 32,387
Liabilities	29,942	28,994
Variable Interest Entity, Primary Beneficiary
Guarantor Obligations
Assets	1,350	971
Liabilities	1,350	970
Maximum
Guarantor Obligations
Related recorded liability	$ 1	$ 1