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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parentheticals) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Statement of Comprehensive Income [Abstract] |  |  |  |
Unrealized hedging gains (losses) and other, tax | $ (9.3) | $ 5.9 | $ 2.5 | $ 0.4
Reclassification of deferred hedging (gains) losses and other, included in net income, tax | 8.8 | (2.5) | 9.9 | (3.2)
Total derivative instruments, tax | (0.5) | 3.4 | 12.4 | (2.8)
Unrealized actuarial gains (losses) and prior service (costs) credits, tax | 0.0 | 0.0 | 0.0 | 0.0
Reclassification of net actuarial and other (gain) loss, amortization of prior service costs and settlement charges, included in net income, tax | (0.7) | (0.7) | (1.9) | (2.0)
Other comprehensive (income) loss, defined benefit plan, after reclassification adjustment, tax | $ (0.7) | $ (0.7) | $ (1.9) | $ (2.0)

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