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REGULATORY ENVIRONMENT - PGL AND NSG 2023 RATE CASE (Details) - Illinois Commerce Commission (ICC) - 2023 Rate Case $ in Millions | 1 Months Ended
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Jan. 31, 2023 USD ($)
PGL |
Public Utilities, General Disclosures [Line Items] |
Requested rate increase | $ 194.7
Requested rate increase (as a percent) | 13.00%
Requested return on equity (as a percent) | 9.90%
Requested common equity component average (as a percent) | 54.00%
NSG |
Public Utilities, General Disclosures [Line Items] |
Requested rate increase | $ 18.7
Requested rate increase (as a percent) | 7.80%
Requested return on equity (as a percent) | 9.90%
Requested common equity component average (as a percent) | 54.00%

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