Deposits and Borrowings - Maturity Profile of Borrowings (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Time Deposits, Fiscal Year Maturity:
2022	$ 20,090
2023	13,321
2024	4,349
2025	2,077
2026	5,719
Thereafter	302
Total	45,858
Debt Fiscal Year Maturity:
Short-term borrowings	883	$ 820
Total, Fiscal Year Maturity:
2022	26,317
2023	23,877
2024	16,528
2025	8,153
2026	10,723
Thereafter	8,975
Total	94,573
Securitized debt obligations
Debt Fiscal Year Maturity:
2022	466
2023	4,166
2024	7,780
2025	1,749
2026	1,620
Thereafter	1,192
Long-term Debt	16,973	14,994
Senior and subordinated notes
Debt Fiscal Year Maturity:
2022	4,859
2023	6,387
2024	4,397
2025	4,325
2026	3,381
Thereafter	7,477
Long-term Debt	30,826	27,219
Other borrowings
Debt Fiscal Year Maturity:
2022	19
2023	3
2024	2
2025	2
2026	3
Thereafter	4
Long-term Debt	33
Federal funds purchased and securities loaned or sold under agreements to repurchase
Debt Fiscal Year Maturity:
Short-term debt, maturities, next 12 months	883
Short-term borrowings	$ 883	$ 820

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