Fair Value Measurements (Fair Value Option, Fair Value and Unpaid Principal Balance) (Details) - Mortgage loans held for sale [Member] - USD ($) $ in Millions |
Mar. 31, 2025 |
Dec. 31, 2024 |
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| Fair Value, Option, Quantitative Disclosures [Line Items] | ||
| Loans Held for Sale | $ 224 | $ 222 |
| Fair Value Option Mortgages Held For Sale Aggregate Unpaid Principal | $ 219 | $ 219 |
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- Definition Fair Value Option Mortgages Held For Sale Aggregate Unpaid Principal No definition available.
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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 Fair value portion of mortgage loans held-for-sale. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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