Commitments and Contingencies - Schedule of Payments to be Made Under Settlement Agreements (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Commitments and Contingencies
Current portion of wildfire-related claims liabilities	$ 808	$ 585
Long-term wildfire-related claims liabilities	626	721
Total balance at end of period	1,434	1,306
2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Current portion of wildfire-related claims liabilities	24	31
Long-term wildfire-related claims liabilities	149	161
Total balance at end of period	173	192
Estimate of possible loss	135	144
2017/2018 Wildfire/Mudslide Events \| Settled Litigation
Commitments and Contingencies
Current portion of wildfire-related claims liabilities		6
2017/2018 Wildfire/Mudslide Events \| SED Settlement
Commitments and Contingencies
Long-term wildfire-related claims liabilities	14	17
2017/2018 Wildfire/Mudslide Events \| SED Settlement
Commitments and Contingencies
Current portion of wildfire-related claims liabilities	24	25
Other Wildfire Events
Commitments and Contingencies
Current portion of wildfire-related claims liabilities	3	4
Long-term wildfire-related claims liabilities	130	213
Total balance at end of period	133	217
Eaton Fire
Commitments and Contingencies
Current portion of wildfire-related claims liabilities	781	550
Long-term wildfire-related claims liabilities	347	347
Total balance at end of period	$ 1,128	$ 897

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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