OTHER INCOME, NET (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Other Income, Net [Line Items] | ||||
| AFUDC - Equity | $ 44.7 | $ 25.1 | $ 139.5 | $ 63.7 |
| Interest income | 1.7 | 0.8 | 5.9 | 5.1 |
| Gains from investments held in rabbi trust | 1.0 | 3.4 | 5.7 | 6.7 |
| Earnings (losses) from equity method investments | 65.8 | 54.8 | 187.9 | 160.3 |
| Other, net | 1.3 | 2.6 | 4.7 | 3.9 |
| Other income, net | 49.5 | 23.8 | 159.2 | 68.4 |
| Equity method investments excluding transmission affiliates | ||||
| Other Income, Net [Line Items] | ||||
| Earnings (losses) from equity method investments | $ 0.8 | $ (8.1) | $ 3.4 | $ (11.0) |
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- Definition Amount of realized and unrealized gain (loss) on investment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of income (loss) for proportionate share of equity method investee's income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of income related to nonoperating activities, classified as other. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The component of the allowance for funds used during construction during the period based on an assumed rate of return on equity funds used in financing the construction of regulated assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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