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Employee Benefit Plans (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Aug. 30, 2014
Aug. 31, 2013
United States Pension Plan of US Entity
    
Defined Benefit Plan Disclosure    
Interest cost $ 0 $ 2.6
Expected return on plan assets 0 (1.9)
Net amortization loss 0 2.4
Net periodic benefit cost 0 3.1
Foreign Pension Plan
    
Defined Benefit Plan Disclosure    
Interest cost 1.2 1.0
Expected return on plan assets (1.5) (1.2)
Net amortization loss 0.5 0.4
Net periodic benefit cost 0.2 0.2
United States Postretirement Benefit Plan of US Entity
    
Defined Benefit Plan Disclosure    
Interest cost 0.1 0.1
Expected return on plan assets 0 0
Net amortization loss 0 0
Net periodic benefit cost $ 0.1 $ 0.1