Fiscal 2012 Productivity Initiatives 1 (Details) (Productivity Initatives [Member], USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Jul. 29, 2012	Jul. 27, 2011 positions
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost		$ 40.5
Restructuring and Related Cost, Incurred Cost, After Tax		28.4
Restructuring and Related Cost, Incurred Cost, Per Share Amount		$ 0.09
Asset Impairment Charges		16.8
Severance Costs		14.9
Restructuring and Related Cost, Number of Positions Eliminated		160
Other Restructuring Costs		8.8
Restructuring and Related Cost, Incurred Cost, Cost of Products Sold		31.4
Restructuring and Related Cost, Incurred Cost, Selling General and Administrative Expense		9.1
Restructuring Reserve, Settled with Cash	$ 35.0	$ 10.9
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Number of Factories		4
Europe [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Number of Factories		2
UNITED STATES | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Number of Factories		1
Asia Pacific [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Number of Factories		1