Debt (Schedule of fee-paid committed and uncommitted credit lines) (Details) $ in Billions	6 Months Ended
	Nov. 29, 2020 USD ($)
Line Of Credit Facility [Line Items]
Facility Amount	$ 3.6
Borrowed Amount	0.1
Committed Credit Facilities [Member]
Line Of Credit Facility [Line Items]
Facility Amount	2.9
Borrowed Amount	$ 0.0
Minimum fixed charge coverage ratio	2.5
Line of Credit Expiring May 2022 [Member]
Line Of Credit Facility [Line Items]
Facility Amount	$ 2.7
Borrowed Amount	$ 0.0
Expiration date of credit facility	May 31, 2022
Line Of Credit Expiring September 2022 [Member]
Line Of Credit Facility [Line Items]
Facility Amount	$ 0.2
Borrowed Amount	$ 0.0
Expiration date of credit facility	Sep. 17, 2022
Uncommitted Credit Facilities [Member]
Line Of Credit Facility [Line Items]
Facility Amount	$ 0.7
Borrowed Amount	$ 0.1