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Risk Management - Credit Risks (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Credit Derivatives [Line Items]
Additional collateral, aggregate fair value if downgrade two notches	$ 99
Energy commodity derivative contracts
Credit Derivatives [Line Items]
Letter of credits outstanding, amount	0	$ 0
Initial Margin Requirements	27
Cash collateral posted	15	85
Other current liabilities | Cash collateral held | Energy commodity derivative contracts
Credit Derivatives [Line Items]
Collateral posted		$ 63
Restrict Cash | Cash collateral held | Energy commodity derivative contracts
Credit Derivatives [Line Items]
Derivative, Collateral, Right to Reclaim Cash, Variation Margins	$ 12

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- Definition

Derivative, Collateral, Right to Reclaim Cash, Variation Margins

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Initial Margin Requirements

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- Definition

The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period.

+ References

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-SubTopic 10
-Section 50
-Paragraph 4H
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Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

+ References

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-Name Accounting Standards Codification
-Section 55
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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Amount of payable for negative price movement on derivative.

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-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
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