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Financial Instruments - Derivatives Not Designated as Hedging, Fair Value Table (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Unrealized Gain On Derivative Contracts | $ 127 | $ 805
Derivative contracts, at fair value (liability) | $ 815 | $ 691
Derivative Liability, Statement of Financial Position [Extensible Enumeration] | Accrued Liabilities | Accrued Liabilities
Investment Segment |  |
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Collateral for derivative positions | $ 1,854 | $ 1,436
Investment Segment | Not designated as hedging instrument |  |
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Derivative contracts, at fair value (liability) | 776 | 687
Investment Segment | Not designated as hedging instrument | Other assets [Member] |  |
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Asset derivatives, Gross | 334 | 839
Derivative, Fair Value, Amount Offset Against Collateral, Net | (207) | (34)
Unrealized Gain On Derivative Contracts | 127 | 805
Investment Segment | Not designated as hedging instrument | Accrued expenses and other liabilities |  |
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Liability derivatives, Gross | 983 | 721
Derivative, Fair Value, Amount Offset Against Collateral, Net | (207) | (34)
Investment Segment | Not designated as hedging instrument | Equity Contract | Other assets [Member] |  |
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Asset derivatives, Gross | 228 | 392
Investment Segment | Not designated as hedging instrument | Equity Contract | Accrued expenses and other liabilities |  |
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Liability derivatives, Gross | 906 | 719
Investment Segment | Not designated as hedging instrument | Credit Risk Contract | Other assets [Member] |  |
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Asset derivatives, Gross | 87 | 447
Investment Segment | Not designated as hedging instrument | Credit Risk Contract | Accrued expenses and other liabilities |  |
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Liability derivatives, Gross | 1 | 1
Investment Segment | Not designated as hedging instrument | Commodity Contract |  |
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Liability derivatives, Gross |  | 1
Investment Segment | Not designated as hedging instrument | Commodity Contract | Other assets [Member] |  |
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Asset derivatives, Gross | 19 |
Investment Segment | Not designated as hedging instrument | Commodity Contract | Accrued expenses and other liabilities |  |
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Liability derivatives, Gross | 76 |
Energy Segment |  |
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Liability derivatives, Gross | 2 | (1)
Derivative contracts, at fair value (liability) | (39) | 4
Collateral for derivative positions | 2 |
Energy Segment | Commodity Contract |  |
Derivatives Not Designated as Hedging Instruments, Fair Value |  |
Liability derivatives, Gross | $ (41) | $ 5

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