Discontinued — last reported Q4 '25
Ameren Defined Benefit Plan Assumptions Used Calculating Benefit Obligation, Change in Discount Rate decreased by 88.9% to 0.1% in Q4 2025 compared to the prior quarter. Year-over-year, this metric declined by 88.9%, from 0.4% to 0.1%. Over 5 years (FY 2020 to FY 2025), Defined Benefit Plan Assumptions Used Calculating Benefit Obligation, Change in Discount Rate shows a downward trend with a -41.8% CAGR.
A decrease in the discount rate typically increases the present value of benefit obligations, potentially increasing reported liabilities.
The change in the discount rate used to calculate the present value of defined benefit plan obligations. This is a key a...
Standard actuarial disclosure for companies with defined benefit pension plans.
other_defined_benefit_plan_assumptions_used_calculating__f55373| Q4 '21 | Q4 '22 | Q4 '23 | Q4 '24 | Q4 '25 | |
|---|---|---|---|---|---|
| Value | 0.3% | 2.6% | 0.3% | 0.5% | 0.1% |
| QoQ Change | — | +920.0% | -88.2% | +50.0% | -88.9% |
| YoY Change | — | +920.0% | -88.2% | +50.0% | -88.9% |