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v3.23.3

Other Income, Net (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Other Nonoperating Income (Expense) [Line Items] |  |  |  |
Allowance for equity funds used during construction | $ 16 | $ 12 | $ 39 | $ 31
Interest income on industrial development revenue bonds | 0 | 6 | 1 | 18
Other interest income | 6 | 2 | 23 | 6
Non-service cost components of net periodic benefit income | 84 | 45 | 211 | 138
Miscellaneous income | 1 | 3 | 4 | 8
Income (Loss) from Equity Method Investments | 0 | (3) | 2 | 1
Donations | (1) | (1) | (5) | (5)
Miscellaneous expense | (5) | (6) | (14) | (17)
Total Other Income, Net | 101 | 58 | 261 | 180
Union Electric Company |  |  |  |
Other Nonoperating Income (Expense) [Line Items] |  |  |  |
Allowance for equity funds used during construction | 8 | 7 | 20 | 17
Interest income on industrial development revenue bonds | 0 | 6 | 1 | 18
Other interest income | 3 | 1 | 8 | 2
Non-service cost components of net periodic benefit income | 34 | 13 | 62 | 41
Miscellaneous income | 1 | 1 | 3 | 3
Donations | 0 | 0 | (2) | (2)
Miscellaneous expense | (2) | (3) | (7) | (7)
Total Other Income, Net | 44 | 25 | 85 | 72
Defined Benefit Plan, Non-service Cost or Income Components - Tracker | (2) | 5 | 32 | 16
Ameren Illinois Company |  |  |  |
Other Nonoperating Income (Expense) [Line Items] |  |  |  |
Allowance for equity funds used during construction | 5 | 5 | 15 | 14
Other interest income | 4 | 1 | 14 | 4
Non-service cost components of net periodic benefit income | 31 | 21 | 93 | 63
Miscellaneous income | 0 | 3 | 2 | 5
Donations | (1) | (1) | (3) | (3)
Miscellaneous expense | (2) | (3) | (6) | (8)
Total Other Income, Net | $ 37 | $ 26 | $ 115 | $ 75

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