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Share Repurchases (Tables)
9 Months Ended
Feb. 24, 2019
Shares Repurchases [Abstract]  
Share repurchases [Table Text Block]
Quarter EndedNine-MonthPeriod Ended
In MillionsFeb. 24, 2019Feb. 25, 2018Feb. 24, 2019Feb. 25, 2018
Shares of common stock---10.9
Aggregate purchase price$0.4$0.7$0.7$601.2