OTHER LIABILITIES (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Other Liabilities Disclosure [Abstract]
Deferred taxes	$ 3,545	$ 3,579
Commitments to fund tax credit investments	982	947
Incentive plan liabilities	283	676
Fair value of derivative financial instruments	654	636
Accrued expenses and accounts payable	549	351
Lease liabilities	397	396
Reserve for off-balance sheet credit exposure	287	316
Accrued interest payable	141	137
Other	849	868
Total other liabilities	$ 7,687	$ 7,906