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Accumulated Other Comprehensive Income (Loss) (Tables) | 6 Months Ended
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Oct. 31, 2025
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Components of accumulated other comprehensive income (loss) | The components of accumulated other comprehensive income (loss), including the reclassification adjustments for items that are reclassified from accumulated other comprehensive income (loss) to net income (loss), are shown below.
| Foreign Currency Translation Adjustment |  | Net Gains (Losses) on Cash Flow Hedging Derivatives (A) |  | Pension and Other Postretirement Liabilities (B) |  | Unrealized Gain (Loss) on Available- for-Sale Securities |  | Accumulated Other Comprehensive Income (Loss)
Balance at May 1, 2025 | $ | (41.7) |  |  | $ | (90.1) |  |  | $ | (53.2) |  |  | $ | 0.5 |  |  | $ | (184.5) |
Reclassification adjustments | — |  |  | 6.3 |  |  | 0.9 |  |  | — |  |  | 7.2 |
Current period credit (charge) | (4.3) |  |  | — |  |  | — |  |  | 0.9 |  |  | (3.4) |
Income tax benefit (expense) | — |  |  | (1.5) |  |  | (0.3) |  |  | (0.2) |  |  | (2.0) |
Balance at October 31, 2025 | $ | (46.0) |  |  | $ | (85.3) |  |  | $ | (52.6) |  |  | $ | 1.2 |  |  | $ | (182.7) |
| Foreign Currency Translation Adjustment |  | Net Gains (Losses) on Cash Flow Hedging Derivatives (A) |  | Pension and Other Postretirement Liabilities (B) |  | Unrealized Gain (Loss) on Available- for-Sale Securities |  | Accumulated Other Comprehensive Income (Loss)
Balance at May 1, 2024 | $ | (39.2) |  |  | $ | (143.1) |  |  | $ | (53.4) |  |  | $ | 1.1 |  |  | $ | (234.6) |
Reclassification adjustments | — |  |  | 6.8 |  |  | 1.0 |  |  | — |  |  | 7.8 |
Current period credit (charge) | (10.7) |  |  | — |  |  | — |  |  | 0.5 |  |  | (10.2) |
Income tax benefit (expense) | — |  |  | (1.6) |  |  | (0.3) |  |  | (0.1) |  |  | (2.0) |
Balance at October 31, 2024 | $ | (49.9) |  |  | $ | (137.9) |  |  | $ | (52.7) |  |  | $ | 1.5 |  |  | $ | (239.0) |
(A)The reclassification from accumulated other comprehensive income (loss) is primarily composed of deferred gains (losses) related to terminated interest rate contracts which were reclassified to interest expense – net. For additional information, see Note 9: Derivative Financial Instruments. (B)The reclassification from accumulated other comprehensive income (loss) to other income (expense) – net is composed of amortization of net losses and prior service costs. For additional information, see Note 8: Pensions and Other Postretirement Benefits.

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