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Employee Benefit Plans (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Aug. 31, 2013
Sep. 01, 2012
Defined Benefit Plan Disclosure [Line Items]    
Net periodic benefit cost $ 3.4 $ 5.0
United States Pension Plan of US Entity, Defined Benefit [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 0 2.0
Interest cost 2.6 2.9
Expected return on plan assets (1.9) (3.2)
Net amortization loss 2.4 3.1
Settlement loss recognized 0 0
Net periodic benefit cost 3.1 4.8
Defined Benefit Plan, Settlements, Expected in Next Fiscal Year 170  
Foreign Pension Plan, Defined Benefit [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 0 0
Interest cost 1.0 0.9
Expected return on plan assets (1.2) (1.2)
Net amortization loss 0.4 0.4
Net periodic benefit cost 0.2 0.1
United States Postretirement Benefit Plan of US Entity, Defined Benefit [Member]
    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 0 0
Interest cost 0.1 0.1
Expected return on plan assets 0 0
Net amortization loss 0 0
Settlement loss recognized 0 0
Net periodic benefit cost $ 0.1 $ 0.1