Workforce Reduction Costs (Other Current Liabilities) (Details) - USD ($) $ in Millions		3 Months Ended			6 Months Ended
		Nov. 29, 2015		Nov. 23, 2014	Nov. 29, 2015		Nov. 23, 2014
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs		$ 0.1	[1]	$ 27.4	$ 0.2	[1]	$ 27.4
Payments					(32.5)
Adjustments					0.5
Balance at November 29, 2015		7.3			7.3
Fiscal Year 2014 Plans
Restructuring Cost and Reserve [Line Items]
Restructuring Charges					14.5
Fiscal Year 2015 Plans
Restructuring Cost and Reserve [Line Items]
Restructuring Charges					24.8
Employee termination benefits
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs	[2]	0.1	[1]	27.0	0.2	[1]	27.0
Payments	[3]				(31.3)
Adjustments	[3]				0.8
Balance at November 29, 2015	[3]	7.1			7.1
Employee termination benefits | Fiscal Year 2014 Plans
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	[3]				13.4
Employee termination benefits | Fiscal Year 2015 Plans
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	[3]				24.2
Other
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs	[4]	0.0	[1]	$ 0.4	0.0	[1]	$ 0.4
Payments					(1.2)
Adjustments					(0.3)
Balance at November 29, 2015		$ 0.2			0.2
Other | Fiscal Year 2014 Plans
Restructuring Cost and Reserve [Line Items]
Restructuring Charges					1.1
Other | Fiscal Year 2015 Plans
Restructuring Cost and Reserve [Line Items]
Restructuring Charges					$ 0.6

[1] Reflects subsequent adjustments to the fiscal 2014 and 2015 plans based on updated information.

[2] Includes salary and stock-based compensation expense.

[3] Excludes costs associated with stock options and restricted stock that will be settled in shares upon vesting.

[4] Includes postemployment medical, outplacement and relocation costs.