Summary of Significant Accounting Policies (Details 1) (USD $) In Millions	12 Months Ended
	May 29, 2011	May 30, 2010	May 31, 2009
Balances in accumulated other comprehensive income (loss), net of tax
Currency Translation Adjustment, Net of Reclassification Adjustments, Beginning Balance	$ 48.9	$ 52.6	$ 122.7
Net derivative adjustment, net of reclassification adjustments, beginning balance	(1.0)	(1.2)	(0.5)
Unrealized Gain (Loss) on Available- For-Sale Securities, Net of Reclassification Adjustment, Beginning Balance	(1.2)	(1.2)	(1.1)
Pension and Postretirement Adjustments, Beginning Balance	(332.0)	(153.9)	165.4
Accumulated Other Comprehensive Income (Loss), Beginning Balance	(285.3)	(103.7)	286.5
Current-period change, Currency Translation Adjustment, Net of Reclassification Adjustments	45.7	(3.7)	(70.1)
Derivative adjustments, net of tax	(7.2)	0.2	(0.7)
Unrealized loss on securities	(0.1)		(0.1)
Pension and postretirement healthcare benefits	24.2	(178.1)	(319.3)
Current-period change, Accumulated Other Comprehensive Income (Loss)	62.6	(181.6)	(390.2)
Currency Translation Adjustment, Net of Reclassification Adjustments, Ending Balance	94.6	48.9	52.6
Net derivative adjustment, net of reclassification adjustments, ending balance	(8.2)	(1.0)	(1.2)
Unrealized Gain (Loss) on Available- For-Sale Securities, Net of Reclassification Adjustment, Ending Balance	(1.3)	(1.2)	(1.2)
Pension and Postretirement Adjustments, Ending Balance	(307.8)	(332.0)	(153.9)
Accumulated Other Comprehensive Income (Loss), Ending Balance	$ (222.7)	$ (285.3)	$ (103.7)