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Other Income, Net (Tables) | 12 Months Ended
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Dec. 31, 2023
Other Income and Expenses [Abstract] |
Schedule of other income, net | Total other income, net was as follows for the years ended December 31:
(in millions) |  | 2023 |  | 2022 |  | 2021
Non-service components of net periodic benefit costs |  | $ | 97.7 |  |  | $ | 104.4 |  |  | $ | 72.2 |
AFUDC-Equity |  | 59.1 |  |  | 29.4 |  |  | 18.0 |
Gains (losses) from investments held in rabbi trust |  | 13.7 |  |  | (12.6) |  |  | 18.6 |
Earnings (losses) from equity method investments (1) |  | (1.1) |  |  | 9.3 |  |  | 19.9 |
Other, net |  | 8.3 |  |  | (1.7) |  |  | 4.5 |
Other income, net |  | $ | 177.7 |  |  | $ | 128.8 |  |  | $ | 133.2 |
(1) Amounts do not include equity earnings of transmission affiliates as those earnings are shown as a separate line item on the income statements.

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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