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Employee Benefit Plans - Schedule of expected future benefit payments (Details) $ in Millions | May 31, 2023 USD ($)
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U.K. | Pension Plans |
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |
2024 | $ 1.2
2025 | 1.5
2026 | 1.4
2027 | 1.4
2028 | 1.4
2029 - 2033 | 7.6
U.S. | Other Postretirement Benefits |
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |
2024 | 1.1
2025 | 1.0
2026 | 0.9
2027 | 0.9
2028 | 0.8
2029 - 2033 | 3.1
Medicare subsidy receipts |
2024 | 0.0
2025 | 0.0
2026 | 0.0
2027 | 0.0
2028 | 0.0
2029 - 2033 | $ 0.1

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