Summary of Significant Accounting Policies (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	May 27, 2012	May 29, 2011	May 30, 2010
Balance in accumulated other comprehensive income (loss), net of tax
Currency Translation Adjustment, Net of Reclassification Adjustments, Beginning Balance	$ 94.6	$ 48.9	$ 52.6
Current period change, Currency Translation Adjustment, Net of Reclassification Adjustments	(52.0)	45.7	(3.7)
Currency Translation Adjustment, Net of Reclassification Adjustments, Ending Balance	42.6	94.6	48.9
Net Derivative Adjustment, Net of Reclassification Adjustments, Beginning Balance	(8.2)	(1.0)	(1.2)
Current period change, Net Derivative Adjustment, Net of Reclassification Adjustments	(89.1)	(7.2)	0.2
Net derivative adjustment, net of reclassification adjustments, Ending Balance	(97.3)	(8.2)	(1.0)
Unrealized Loss on Available-For-Sale Securities, Net of Reclassification Adjustment, Beginning Balance	(1.3)	(1.2)	(1.2)
Current period change, Unrealized Loss on Available- For-Sale Securities, Net of Reclassification Adjustment	(0.1)	(0.1)
Unrealized Loss on Available-For-Sale Securities, Net of Reclassification Adjustment, Ending Balance	(1.4)	(1.3)	(1.2)
Pension and Postretirement Adjustments, Beginning Balance	(176.3)	(199.9)	(134.1)
Current period change, Pension and Postretirement Adjustments	(66.7)	23.6	(65.8)
Pension and Postretirement Adjustments, Ending Balance	(243.0)	(176.3)	(199.9)
Accumulated Other Comprehensive Income (Loss), Beginning Balance	(91.2)	(153.2)	(83.9)
Current period change, Accumulated Other Comprehensive Income (Loss)	(207.9)	62.0	(69.3)
Accumulated Other Comprehensive Income (Loss), Ending Balance	$ (299.1)	$ (91.2)	$ (153.2)