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Financial Instruments - Gain (Loss) Recognized on Derivatives Not Designated as Hedging Table (Details) - Not designated as hedging instrument - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Net gain (loss) from investment activities |  |  |  |
Derivative |  |  |  |
Gain (loss) on derivatives not designated as hedging instruments recognized in income | [1] | $ (214) | $ (1,016) | $ (131)
Equity contracts |  |  |  |
Derivative |  |  |  |
Gain (loss) on derivatives not designated as hedging instruments recognized in income | [1] | (201) | (903) | 456
Credit contracts |  |  |  |
Derivative |  |  |  |
Gain (loss) on derivatives not designated as hedging instruments recognized in income | [1] | (29) | (87) | (586)
Commodity contracts |  |  |  |
Derivative |  |  |  |
Gain (loss) on derivatives not designated as hedging instruments recognized in income | [1] | $ 16 | $ (26) | $ (1)
[1] | Gains (losses) recognized on derivatives are classified in net (loss) gain from investment activities in our consolidated statements of operations for our Investment segment.

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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4C Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4CC + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480237/815-40-50-5 + Details
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