Other, Net (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2024 |
Sep. 30, 2023 |
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| Other, Net [Abstract] | ||||
| Interest income | $ 3.4 | $ 2.7 | $ 7.8 | $ 6.3 |
| AFUDC equity | 32.1 | 6.0 | 56.7 | 15.2 |
| Pension and other postretirement non-service cost | (5.9) | (9.8) | (10.2) | (18.2) |
| Other, net | 29.2 | (1.6) | 51.4 | 1.9 |
| Other Expenses | $ (0.4) | $ (0.5) | $ (2.9) | $ (1.4) |
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- Definition Other, Net [Abstract] No definition available.
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- Definition Pension and Other Postretirement Non Service Cost No definition available.
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- Definition Amount of interest income (expense) classified as nonoperating. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of expense classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount capitalized of allowance for funds used during construction. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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