Long -Term Debt (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Nov. 27, 2011	Nov. 28, 2010	Nov. 27, 2011	Nov. 28, 2010
Net interest expense
Long-term debt	$ 52.7	$ 56.3	$ 108.8	$ 116.6
Short-term debt			0.1	0.1
Interest income	(0.9)	(19.4)	(2.2)	(38.8)
Interest capitalized	(1.2)	(3.2)	(3.2)	(6.9)
Interest expense, net	$ 50.6	$ 33.7	$ 103.5	$ 71.0