Deposits and Borrowings - Maturity Profile of Borrowings (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Time Deposits, Fiscal Year Maturity:
2021	$ 21,381
2022	6,447
2023	2,212
2024	2,196
2025	385
Thereafter	126
Total	32,747
Debt Fiscal Year Maturity:
Short-term borrowings	668	$ 7,314
Total, Fiscal Year Maturity:
2021	28,278
2022	14,590
2023	9,349
2024	8,431
2025	4,165
Thereafter	8,473
Total	73,286
Securitized debt obligations
Debt Fiscal Year Maturity:
2021	2,331
2022	5,635
2023	1,087
2024	1,569
2025	289
Thereafter	1,503
Long-term Debt	12,414	17,808
Senior and subordinated notes
Debt Fiscal Year Maturity:
2021	3,878
2022	2,488
2023	6,032
2024	4,661
2025	3,488
Thereafter	6,835
Long-term Debt	27,382	30,472
Other borrowings
Debt Fiscal Year Maturity:
2021	20
2022	20
2023	18
2024	5
2025	3
Thereafter	9
Long-term Debt	75
Federal funds purchased and securities loaned or sold under agreements to repurchase
Debt Fiscal Year Maturity:
Short-term debt, maturities, next 12 months	668
Short-term borrowings	$ 668	$ 314

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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