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Financial Instruments - Energy Segments Derivatives (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Derivative [Line Items] |  |  |
Derivative assets, net |  | $ 53 | $ 64
Derivative liabilities |  | 948 | 979
Collateral for derivative positions |  | 5 | 13
Energy |  |  |
Derivative [Line Items] |  |  |
Asset derivatives, Gross | [1] | (5) | (6)
Derivative assets, net |  | 20 | 25
Liability derivatives, Gross | [1] | (5) | (6)
Derivative liabilities |  | 2 |
Commodity Contracts | Energy |  |  |
Derivative [Line Items] |  |  |
Asset derivatives, Gross |  | 25 | 31
Liability derivatives, Gross |  | $ 7 | $ 6
[1] | Excludes netting of derivatives primarily related to initial margin requirements of $5 million and $13 million at June 30, 2024 and December 31, 2023, respectively, which was not offset against derivatives liabilities, net in the condensed consolidated balance sheets.

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