Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Other comprehensive income (loss): | ||||
| Adjustment For Long-Term Intercompany Transactions Tax Expense Benefit | $ 0.0 | $ 0.0 | $ 0.0 | $ 0.1 |
| Income tax expense on translation adjustments on derivative instruments | 4.0 | (32.5) | 9.0 | (44.2) |
| Income tax expense on defined benefit pension plans and retiree health care plan | $ 0.1 | $ (1.8) | $ 0.2 | $ (0.1) |