Occupancy Expense and Information Systems and Communications Expense - Summary of Future Minimum Lease Payments (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Operating Leases
2023	$ 189
2024	125
2025	107
2026	84
2027	70
Thereafter	101
Total future minimum lease payments	676
Less imputed interest	(46)
Total	630
Finance Leases
2023	50
2024	52
2025	52
2026	31
2027	0
Thereafter	0
Total future minimum lease payments	185
Less imputed interest	(9)
Total	176	$ 164
2023	239
2024	177
2025	159
2026	115
2027	70
Thereafter	101
Total future minimum lease payments	861
Less imputed interest	(55)
Total	$ 806

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
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