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Commitment and Contingencies - Smokehouse Creek (Details) $ in Millions	Sep. 30, 2025 USD ($) Claims complaint	Dec. 31, 2024 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Number of claims settled related to the Smokehouse Creek Complex | Claims	212
Number of claims related to the Smokehouse Creek Complex | Claims	254
Number of complaints related to the Smokehouse Creek Complex [Abstract] | complaint	34
Smokehouse probable loss	$ 410
Smokehouse settlements reached	361
Smokehouse remaining liability	191	$ 180
Smokehouse Creek Insurance Receivable	$ 341	$ 210
Number of claims resolved related to the Smokehouse Creek Complex	12
Number of claims settled and pending dismissal related to the Smokehouse Creek Complex	9
Amount of insurance coverage	$ 500
Unsubmitted Claims related to the Smokehouse Creek Fire Complex | Claims	83
Number of unsubmitted claims settled related to the Smokehouse Creek Fire Complex | Claims	71

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