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Derivatives and Risk Management Activities - Financial Impact (Details) - Derivatives Not Designated as a Hedge - Commodity derivatives - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Impact of derivative activities recognized in earnings |  |  |
Net gain/(loss) from commodity derivative activity | $ (255) | $ (32) | $ 238
Product sales revenues |  |  |
Impact of derivative activities recognized in earnings |  |  |
Net gain/(loss) from commodity derivative activity | (223) | 13 | 179
Field operating costs |  |  |
Impact of derivative activities recognized in earnings |  |  |
Net gain/(loss) from commodity derivative activity | $ (32) | $ (45) | $ 59

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