Productivity Initiatives 1 (Details) (USD $)	3 Months Ended				12 Months Ended								0 Months Ended			12 Months Ended				0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended
	Apr. 29, 2012	Jan. 25, 2012	Oct. 26, 2011	Jul. 27, 2011	Apr. 29, 2012		Apr. 27, 2011		Apr. 28, 2010		Apr. 29, 2012 Productivity Initatives [Member] positions	Apr. 28, 2010 Productivity Initatives [Member]	May 26, 2011 Productivity Initiative, Original Plan [Member] factories	May 26, 2011 Productivity Initiative, Original Plan [Member] Minimum [Member] positions	May 26, 2011 Productivity Initiative, Original Plan [Member] Maximum [Member] positions	Apr. 29, 2012 Productivity Initiative, Additional Plan [Member]	Apr. 29, 2012 Productivity Initiative, Additional Plan [Member] Maximum [Member] positions	Apr. 29, 2012 Facility Closing [Member] Productivity Initatives [Member] factories	Apr. 29, 2012 Facility Closing [Member] Productivity Initiative, Additional Plan [Member] factories	May 26, 2011 Europe [Member] Productivity Initiative, Original Plan [Member] factories	Apr. 29, 2012 Europe [Member] Facility Closing [Member] Productivity Initatives [Member] factories	May 26, 2011 United States [Member] Productivity Initiative, Original Plan [Member] factories	Apr. 29, 2012 United States [Member] Facility Closing [Member] Productivity Initatives [Member] factories	May 26, 2011 Asia Pacific [Member] Productivity Initiative, Original Plan [Member] factories	Apr. 29, 2012 Asia Pacific [Member] Facility Closing [Member] Productivity Initatives [Member] factories
Restructuring Cost and Reserve [Line Items]
Restructuring And Related Cost Expected Cash Paid in Fiscal 2012													$ 130,000,000			$ 40,000,000
Restructuring and Related Cost, Expected Cost in Fiscal 2012													160,000,000			75,000,000
Restructuring And Related Cost Expected Cost Per Share Amount in Fiscal 2012													$ 0.35			$ 0.21
Restructuring and Related Cost, Expected Number of Factories Closed													5						3	2		2		1
Restructuring and Related Cost, Expected Number of Positions Eliminated in Fiscal 2012														800	1,000		1,000
Productivity charges	112,700,000	33,800,000	37,300,000	40,500,000	224,317,000	[1]	0	[1]	37,665,000	[1]	224,300,000
Restructuring And Related Cost Incurred Cost After Tax	86,200,000	22,800,000	25,500,000	28,400,000	162,900,000						162,900,000
Restructuring And Related Cost Incurred Cost Per Share Amount	$ 0.27	$ 0.07	$ 0.08	$ 0.09	$ 0.50						$ 0.50
Asset Impairment Charges											58,700,000	12,600,000
Number of Factories																		8			2		3		3
Severance Costs											89,800,000
Restructuring and Related Cost, Number of Positions Eliminated											2,900
Other Restructuring Costs											75,800,000
Restructuring and Related Cost, Incurred Cost, Cost of Products Sold											139,800,000
Restructuring and Related Cost, Incurred Cost, Selling General and Administrative Expense											$ 84,500,000

[1] See Note 3 for further details on Fiscal 2012 productivity initiatives. Fiscal 2010 includes costs associated with targeted workforce reductions and asset write-offs, that were part of a corporation-wide initiative to improve productivity. The asset write-offs related to two factory closures and the exit of a formula business in the U.K.