| Segment | Q2 '24 | Q3 '24 | Q4 '24 | Q1 '25 | Q2 '25 | Q3 '25 | Q4 '25 | Q1 '26 |
|---|---|---|---|---|---|---|---|---|
| Union Electric Company | $208.00M | $220.00M | $294.00M | $194.00M | $209.00M | $239.00M | $218.00M | $214.00M |
| Ameren Illinois Electric Distribution | — | — | — | $91.00M | $93.00M | $92.00M | — | $96.00M |
| Ameren Transmission | — | — | — | $48.00M | $49.00M | $49.00M | — | $53.00M |
| Ameren Illinois Transmission | — | — | — | $36.00M | $37.00M | $37.00M | — | $40.00M |
| Ameren Illinois Natural Gas | — | — | — | $32.00M | $33.00M | $33.00M | — | $34.00M |
| Total | $397.50M | $397.50M | $397.50M | $392.00M | $392.00M | $392.00M | $392.00M | — |