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Derivatives and Risk Management Activities - Broker Receivable/Payable (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Derivative assets and liabilities
Initial margin	$ 45	$ 16
Variation margin posted/(returned)	(8)	15
Letters of credit	(70)	(90)
Net broker receivable	36	22
Exchange Traded
Derivative assets and liabilities
Letters of credit	$ (1)	$ (9)

X

- Definition

The amount of cash or securities required by a broker or counterparty as security for a trading or derivatives securities position.

+ References

No definition available.

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- Definition

Cash posted by (returned to) the reporting entity to (from) a broker or counterparty to comply with initial margin requirements.

+ References

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- Definition

Amount of right to receive cash collateral under master netting arrangements offset against derivative liabilities.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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