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Basis of Financial Statements - Owned Distribution Investments (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Distribution Investments And Affiliates | Commission Fees Paid |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Payments for commissions | $ 16 | $ 37 | $ 110 | $ 114

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- Definition The amount of cash paid for commissions during the current period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (g) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-25 + Details
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