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Commitments and Contingencies - Schedule of Settlement of Claims (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended	75 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Sep. 30, 2025
Commitments and Contingencies
Total	$ 483	$ 768	$ 10,786
2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Total	50	208	9,662
Other Wildfire Events
Commitments and Contingencies
Total	208	335	899
Eaton Fire
Commitments and Contingencies
Total	$ 225	$ 225	$ 225

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