v3.25.2
Commitments and Contingencies - Environmental Requirements - Water and Waste (Details)
$ in Millions
Jun. 30, 2025
USD ($)
Site Contingency [Line Items]  
Accrued liability of sites under investigation as part of federal CCR program $ 45
Legacy CCR Investigation and Remediation Costs 5
Federal Coal Ash Regulation | Maximum [Member]  
Site Contingency [Line Items]  
Cost of Coal Ash Removal Projects $ 45