COMMITMENTS, CONTINGENCIES, AND GUARANTEES - Schedule of Other Commitments (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Other Commitments [Line Items] | ||
| Total commitments | $ 35,742 | $ 23,209 |
| Commitments to extend credit | ||
| Other Commitments [Line Items] | ||
| Other commitments | 33,790 | 21,829 |
| Letters of credit | ||
| Other Commitments [Line Items] | ||
| Letters of credit | 1,948 | 1,376 |
| Recourse exposure on sold loans | ||
| Other Commitments [Line Items] | ||
| Other commitments | $ 4 | $ 4 |
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- Definition Amount of contractual obligation, including, but not limited to, long-term debt, lease obligation, purchase obligation, and other commitments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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