v3.26.1
Offerings - Offering: 1
Aug. 17, 2026
USD ($)
shares
Offering:  
Fee Previously Paid false
Rule 457(r) true
Security Type Debt
Security Class Title Ameren Illinois Company's 5.50% First Mortgage Bonds due 2036
Amount Registered | shares 400,000,000
Maximum Aggregate Offering Price $ 399,952,000.00
Fee Rate 0.01381%
Amount of Registration Fee $ 55,233.37
Offering Note These "Calculation of Filing Fee Tables" shall be deemed to update the "Calculation of Filing Fee Tables" exhibit in Ameren Illinois Company's Registration Statement on Form S-3 (File No. 333-297949-01), which was filed on August 4, 2026.