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Related Party Transactions (Schedule of Related Party Electric Power Supply Agreements) (Details) - Ameren Illinois - Ameren Illinois Power Supply Agreements with Ameren Missouri | 12 Months Ended
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Dec. 31, 2023 MWh $ / MWh
April 2019 |
Schedule of Related Party Electric Power Supply Agreements [Line Items] |
MWhs | MWh | 288,000
Average Price per MWh | $ / MWh | 35
September 2019 |
Schedule of Related Party Electric Power Supply Agreements [Line Items] |
MWhs | MWh | 170,800
Average Price per MWh | $ / MWh | 29
September 2020 |
Schedule of Related Party Electric Power Supply Agreements [Line Items] |
MWhs | MWh | 204,800
Average Price per MWh | $ / MWh | 31
April 2021 |
Schedule of Related Party Electric Power Supply Agreements [Line Items] |
MWhs | MWh | 33,600
Average Price per MWh | $ / MWh | 34
September 2021 |
Schedule of Related Party Electric Power Supply Agreements [Line Items] |
MWhs | MWh | 136,000
Average Price per MWh | $ / MWh | 37

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- Definition Related Party Long Term Contract For Purchase Of Electric Power + References No definition available. + Details
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- Definition Related Party, Long Term Contract For Purchase Of Electric Power, Rate + References No definition available. + Details
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- Definition [Line Items] for Schedule of Related Party Electric Power Supply Agreements + References No definition available. + Details
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- Details
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- Details
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