Premises, Equipment, and Leases - Schedule of Maturity of Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
2024	$ 44
2025	43
2026	42
2027	41
2028	35
2029 and thereafter	204
Total lease payments	409
Less lease liability interest	(64)
Total lease liability	$ 345	$ 371