| Segment | Q4 '23 | Q1 '24 | Q2 '24 | Q3 '24 | Q1 '25 | Q2 '25 | Q3 '25 | Q1 '26 |
|---|---|---|---|---|---|---|---|---|
| Ameren Illinois Natural Gas | — | $106.00M | $6.00M | -$10.00M | $108.00M | $10.00M | -$13.00M | $122.00M |
| Ameren Transmission | — | $72.00M | $79.00M | $90.00M | $89.00M | $86.00M | $151.00M | $98.00M |
| Union Electric Company | $4.00M | $25.00M | $128.00M | $381.00M | $42.00M | $150.00M | $518.00M | $76.00M |
| Ameren Illinois Transmission | — | $53.00M | $57.00M | $68.00M | $65.00M | $63.00M | $104.00M | $68.00M |
| Ameren Illinois Electric Distribution | — | $56.00M | $61.00M | $56.00M | $63.00M | $64.00M | $57.00M | $66.00M |
| Total | $159.00M | $262.00M | $260.00M | $457.00M | $290.00M | $277.00M | $641.00M | $358.00M |