Schedule II - Valuation and Qualifying Accounts (Details) - Allowance for doubtful receivables - USD ($) $ in Millions		12 Months Ended
		May. 31, 2015		May. 25, 2014	May. 26, 2013
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period		$ 4.0		$ 5.9	$ 4.6
Additions Charged to Costs and Expenses		2.8		1.3	0.2
Other		(0.2)	[1]	0.0	2.3	[2]
Deductions from Reserves	[3]	2.0		3.2	1.2
Balance at Close of Period		$ 4.6		$ 4.0	$ 5.9

[1] Primarily translation incurred during fiscal 2015.

[2] Primarily allowances acquired through fiscal 2013 business acquisitions.

[3] Bad debts charged off and adjustments to previous reserves, less recoveries.