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Employee Benefit Plans - Schedule of total weighted average asset allocations (Details) - U.K. - Pension Plans	May 31, 2023	May 31, 2022
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocations	100.00%	100.00%
Equity securities
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocations	29.60%	56.10%
Cash and cash equivalents
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocations	5.10%	1.10%
Liability-driven instruments
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocations	41.70%	23.20%
Real estate
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocations	6.80%	5.70%
Other
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted average asset allocations	16.80%	13.90%

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- Definition

Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

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