Company: AILIM
Filing Date: 2025-02-18
Form Type: 10-K
Source: 0001002910-25-000055
Chunk: 125

Company: Ameren Illinois Co
Filing Date: 2025-02-18
Form: 10-K
Item: Item 8
Chunk 125
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.The following table presents Ameren’s and Ameren Missouri’s remaining maturities of operating lease liabilities as of December 31, 2024:AmerenAmeren Missouri2025$8 $7 20265 4 20274 3 20284 4 20294 4 Thereafter131 131 Total lease payments$156 $153 Less imputed interest84 84 Total$72 $69 InventoriesThe following table presents the components of inventories for each of the Ameren Companies at December 31, 2024 and 2023:December 31, 2024December 31, 2023AmerenMissouriAmerenIllinoisAmerenAmerenMissouriAmerenIllinoisAmerenFuel(a)$113 $— $113 $109 $— $109 Natural gas stored underground9 82 91 8 87 95 Materials, supplies, and other392 162 558 391 138 529 Total inventories$514 $244 $762 $508 $225 $733 (a)Consists of coal, oil, and propane.

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Asset Retirement ObligationsThe following table provides a reconciliation of the beginning and ending carrying amount of AROs for the years ended December 31, 2024 and 2023:December 31, 2024December 31, 2023AmerenMissouriAmerenIllinoisAmerenAmerenMissouriAmerenIllinoisAmerenBeginning balance at January 1$787 (a)$4 (b)$791 (a)$782 $4 $786 Liabilities incurred21 (c)— 21 (c)— — — Liabilities settled(13)— (13)(10)— (10)Accretion(d)35 (d)— 35 (d)33 — 33 Change in estimates(7)— (7)(18)— (18)Ending balance at December 31$823 (a)(e)$4 (b)$827 (a)(e)$787 (a)$4 (b)$791 (a)(a)Balance included $5 million and $19 million in “Other current liabilities” on the balance sheet as of December 31, 2024 and 2023, respectively.(b)Included in “Other deferred