Commitments and Contingencies (Details) (USD $)	12 Months Ended							0 Months Ended
	Apr. 28, 2013 contract		Apr. 29, 2012		Apr. 27, 2011		Apr. 01, 2011 Coniexpress S.A. Industrias Alimenticias [Member]	Jun. 03, 2013 Subsequent Event [Member]
Loss Contingencies [Line Items]
Operating lease rentals for warehouse, production and office facilities and equipment	$ 145,400,000		$ 155,200,000		$ 112,400,000
Operating Leases, Future Minimum Payments Due [Abstract]
Future lease payments for non-cancellable operating leases	526,200,000
Future lease payments for non-cancellable operating leases, due in current year	92,000,000
Future lease payments for non-cancellable operating leases, due in two years	71,600,000
Future lease payments for non-cancellable operating leases, due in three years	63,700,000
Future lease payments for non-cancellable operating leases, due in four years	52,700,000
Future lease payments for non-cancellable operating leases, due in five years	50,000,000
Future lease payments for non-cancellable operating leases, due thereafter	196,200,000
Guaranteed supplemental payment obligations	150,000,000
Operating leases, number of contracts	2
Payments to acquire property, plant, and equipment	$ 399,098,000	[1]	$ 418,734,000	[1]	$ 335,646,000	[1]		$ 88,700,000
Noncontrolling interest, ownership percentage by noncontrolling owners							20.00%

[1] Excludes property, plant and equipment obtained through acquisitions.