Premises, Equipment, and Leases - Schedule of Maturity of Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
2025	$ 45
2026	44
2027	43
2028	37
2029	34
2030 and thereafter	199
Total lease payments	402
Less lease liability interest	(69)
Total lease liability	$ 333	$ 345