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Commitments and Contingencies - Schedule of Product Warranty Liability (Details) - USD ($)
$ in Millions
3 Months Ended
Aug. 29, 2015
Aug. 30, 2014
Movement in Standard Product Warranty Accrual [Roll Forward]    
Accrual Balance — beginning $ 26.8 $ 25.2
Accrual for warranty matters 5.6 6.5
Settlements and adjustments (5.4) (6.0)
Accrual Balance — ending $ 27.0 $ 25.7