DEPOSITS - Schedule of Deposits By Deposit Type (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
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| Deposit Liability [Line Items] | ||
| Certificates of deposit | $ 6,515 | |
| Cardholder credit balances | 23 | $ 25 |
| Total deposits | 15,502 | 13,916 |
| Consumer deposits | ||
| Deposit Liability [Line Items] | ||
| Savings accounts | 5,234 | 4,329 |
| Certificates of deposit | 4,666 | 4,194 |
| Wholesale | ||
| Deposit Liability [Line Items] | ||
| Savings accounts | 3,729 | 3,371 |
| Certificates of deposit | 1,850 | 1,997 |
| Cardholder credit balances | ||
| Deposit Liability [Line Items] | ||
| Cardholder credit balances | $ 23 | $ 25 |
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of time deposit liabilities, including certificates of deposit. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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