Regulatory Matters - Summary of Infrastructure Surcharge Authorizations (Details) $ in Millions |
3 Months Ended |
|---|---|
|
Mar. 31, 2025
USD ($)
| |
| Public Utilities, General Disclosures | |
| Total infrastructure surcharge authorizations | $ 23 |
| Missouri | |
| Public Utilities, General Disclosures | |
| Total infrastructure surcharge authorizations | 17 |
| Kentucky | |
| Public Utilities, General Disclosures | |
| Total infrastructure surcharge authorizations | 2 |
| West Virginia | |
| Public Utilities, General Disclosures | |
| Total infrastructure surcharge authorizations | $ 4 |