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Balance Sheet Components Other Current Assets (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Other Current Assets [Line Items] |  |
Prepaid expenses | $ 45 | $ 68
Assets from price risk management activities | 20 | 22
Margin deposits | 91 | 92
Other current assets | $ 156 | $ 182

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