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Financial Instruments - Narrative (Details) MMBbls in Millions, BarrelOfButane in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2022 USD ($) BarrelOfButane MMBbls | Dec. 31, 2021 USD ($) BarrelOfButane MMBbls | Dec. 31, 2020 USD ($)
Derivatives, Fair Value |  |  |  |
Unrealized Gain On Derivative Contracts |  | $ 812 | $ 612 |
Investment Segment | Not designated as hedging instrument | Other assets [Member] |  |  |  |
Derivatives, Fair Value |  |  |  |
Unrealized Gain On Derivative Contracts | [1] | 805 | 611 |
Energy Segment | Not designated as hedging instrument | Other assets [Member] |  |  |  |
Derivatives, Fair Value |  |  |  |
Derivative Asset |  | 7 | 4 |
Unrealized Gain On Derivative Contracts |  | 4 | 2 |
Energy Segment | Not designated as hedging instrument | Cost of Goods and Service Benchmark |  |  |  |
Derivatives, Fair Value |  |  |  |
Gain (loss) on derivatives not designated as hedging instruments recognized in income |  | $ (55) | $ (44) | $ 55
Future Contracts | Maximum |  |  |  |
Derivatives, Fair Value |  |  |  |
Derivative volume (barrels) | MMBbls |  | 1 | 1 |
Forward Contracts | Energy Segment | Not designated as hedging instrument |  |  |  |
Derivatives, Fair Value |  |  |  |
Derivative, Number of Instruments Held |  | 34 | 3 |
Credit Default Swap | Energy Segment | Not designated as hedging instrument |  |  |  |
Derivatives, Fair Value |  |  |  |
Derivative, Number of Instruments Held |  | 1 |  |
[1] | Excludes netting of cash collateral received and posted. The total collateral posted at December 31, 2022 and 2021 was $1,436 million and $1,906 million, respectively, across all counterparties, which are included in cash held at consolidated affiliated partnerships and restricted cash in the consolidated balance sheets.

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