Company: AILIM
Filing Date: 2025-02-18
Form Type: 10-K
Source: 0001002910-25-000055
Chunk: 104

Company: Ameren Illinois Co
Filing Date: 2025-02-18
Form: 10-K
Item: Item 8
Chunk 104
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d)(c)(c)(c)(e)(f)5.00 Medical cost trend rate (ultimate)(d)(c)(c)(c)5.00 5.00 5.00 (a)Increase in future compensation is 4.00% for 2024 and 3.50% thereafter for the year ended December 31, 2024, and was 4.50% for 2023, 4.00% for 2024, and 3.50% thereafter for the year ended December 31, 2023.(b)Cash balance pension plan interest crediting rate is 6.42% for 2024 and 5.50% thereafter for the year ended December 31, 2024, and was 5.50% for 2023 and 2024, and 5.00% thereafter for the year ended December 31, 2023.(c)Not applicable.(d)Initial and ultimate medical cost trend rate for certain Medicare-eligible participants is 2.50% for the years ended December 31, 2024 and 2023, and 3.00% for the year ended December 31, 2022.(e)Initial medical cost trend rates of 6.93% for pre-Medicare plan participants and 6.50% for post-Medicare plan participants trend down to the ultimate rate by 2030, with a 3.00% upward adjustment to the post-Medicare trend rate in 2025.(f)Initial medical cost trend rates of 7.25% for pre-Medicare plan participants and 6.75% for post-Medicare plan participants trend down to the ultimate rate by 2030, with a 3.00% upward adjustment to the post-Medicare trend rate in 2025.OtherAmeren sponsors a 401(k) plan for eligible employees. The Ameren 401(k) plan covered all eligible Ameren employees at December 31, 2024. The plan allows employees to contribute a portion of their compensation in accordance with specific guidelines. Ameren matches a percentage of the employee contributions up to certain limits. The following table presents the portion of the matching contribution to the Ameren 401(k) plan attributable to each of the Ameren Companies for the years ended December 31, 2024, 2023, and 2022:202420232022Ameren Missouri$26