| **Commitments and Contingent Liabilities (Details) - USD ($) $ in Millions** | Sep. 30, 2024 | Dec. 31, 2023 |
|------------------------------------------------------------------------------|---------------|---------------|
| **Guarantor Obligations**                                                    |          |          |
| Guarantees, maximum potential amount of future payments                      | $ 24          | $ 25          |
| Total assets                                                                 | 34,326        | 33,112        |
| Liabilities                                                                  | 30,851        | 29,942        |
| Maximum                                                                      |          |          |
| **Guarantor Obligations**                                                    |          |          |
| Related recorded liability                                                   | 1             | 1             |
| Variable interest entity, primary beneficiary                                |          |          |
| **Guarantor Obligations**                                                    |          |          |
| Total assets                                                                 | 1,310         | 1,350         |
| Liabilities                                                                  | $ 1,310       | $ 1,350       |

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Amount of asset recognized for present right to economic benefit.
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| - Definition
The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.
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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.
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| - Definition
Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.
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| - Definition
Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others.
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