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ALLOWANCE FOR LOAN AND LEASE LOSSES - Schedule of Components of Credit Losses (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Receivables [Abstract] |  |  |
Day 2 Provision for Loan and Lease Losses | $ 0 | $ 462 | $ 454
Provision for loan and lease losses | 469 | 703 | 97
Total provision for loan and lease losses | 469 | 1,165 | 551
Day 2 Provision for Off-Balance Sheet Credit Exposure | 0 | 254 | 59
(Benefit) provision from off-balance sheet credit exposure | (38) | (44) | 35
Total (benefit) provision for off-balance sheet credit exposure | (38) | 210 | 94
Provision for credit losses | $ 431 | $ 1,375 | $ 645

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- Definition Financing Receivable, Credit Loss, Expense + References No definition available. + Details
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- Definition Financing Receivable, Excluding Accrued Interest, Purchased without Credit Deterioration, Allowance for Credit Loss at Acquisition Date + References No definition available. + Details
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- Definition Off-Balance-Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal), Excluding Amount Acquired In Acquisition + References No definition available. + Details
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- Definition Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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- Definition Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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