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Nature of Operations and Basis of Presentation (Details) $ in Millions |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
May 06, 2024 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2024 USD ($) segment | Sep. 30, 2023 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Number of operating segments | segment |  |  |  | 4 |
Gain on disposition of business |  | $ (2) | $ 0 | $ 582 | $ 0
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Wealth Management Business |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Proceeds from divestiture of interest in consolidated subsidiaries | $ 723 |  |  |  |
Gain on disposition of business | 545 |  |  |  |
Transaction expenses |  | $ 2 |  | $ 37 |
Disposition of business, statutory capital benefit | $ 650 |  |  |  |

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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the disposition of a business not qualifying as a discontinued operation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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