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Retirement Benefits and Postemployment Benefits (Schedule of summarized financial information about benefit plans) (Parenthetical) (Details)	12 Months Ended
	May 30, 2021	May 31, 2020
Retirement Benefits and Postemployment Benefits [Abstract]
Defined Benefit Plan, Plan Assets, Accounting Policy Election, Measurement Date	May 31, 2021	May 31, 2020

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- References

No definition available.

+ Details

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- Definition

Month-end measurement date applicable when an accounting policy election is made to measure plan assets and benefit obligations as of the month-end that is closest to the fiscal year-end, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (u)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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