Fiscal 2012 Productivity Initiatives 3 (Details) (USD $)	3 Months Ended				12 Months Ended
	Apr. 29, 2012	Jan. 25, 2012	Oct. 26, 2011	Jul. 27, 2011	Apr. 29, 2012	Apr. 28, 2013 Productivity Initatives [Member]	Apr. 29, 2012 Productivity Initatives [Member] positions	Apr. 29, 2012 Productivity Initatives [Member] Loss from discontinued operations [Member]	Apr. 29, 2012 Productivity Initatives [Member] Facility Closing [Member] positions factories	Apr. 29, 2012 Europe [Member] Productivity Initatives [Member] Facility Closing [Member] factories	Apr. 29, 2012 United States [Member] Productivity Initatives [Member] Facility Closing [Member] factories	Apr. 29, 2012 Asia Pacific [Member] Productivity Initatives [Member] Facility Closing [Member] factories	Apr. 29, 2012 Shanghai LongFong Foods [Member] Productivity Initatives [Member] Facility Closing [Member] factories
Restructuring Cost and Reserve [Line Items]
Pre-tax charges	$ 94,300,000	$ 33,700,000	$ 37,300,000	$ 40,200,000	$ 205,400,000		$ 205,400,000
After-tax changes	67,700,000	22,600,000	25,600,000	28,100,000	144,000,000		144,000,000	18,900,000
EPS impact	$ 0.21	$ 0.07	$ 0.08	$ 0.09	$ 0.45		$ 0.45
Asset impairment charges							50,900,000
Number of factories									6	2	3	1	2
Severance costs							81,700,000
Number of positions eliminated							1,400		1,500
Other restructuring costs							72,900,000
Restructuring charges, cost of products sold							129,900,000
Restructuring charges, incurred cost, selling general and administrative expense							75,500,000
Payments for restructuring						$ (44,000,000)