BORROWED FUNDS - Maturities of Long-term Borrowed Funds (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
2023	$ 2
2024	11,858
2025	2,488
2026	1,428
2027	1
2028 and thereafter	3,078
Total	18,855	$ 15,887
Parent Company
Debt Instrument [Line Items]
2023	0
2024	107
2025	469
2026	498
2027	0
2028 and thereafter	2,264
Total	3,338
CBNA and Other Subsidiaries
Debt Instrument [Line Items]
2023	2
2024	11,751
2025	2,019
2026	930
2027	1
2028 and thereafter	814
Total	$ 15,517

Long Term Debt Maturities Repayments Of Principal After Year Four

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