Supplemental Cash Flows Information 1 (Details) (USD $)	12 Months Ended
	Apr. 28, 2013		Apr. 29, 2012		Apr. 27, 2011
Cash Paid During the Year For:
Interest	$ 285,324,000		$ 277,954,000		$ 268,131,000
Income taxes	327,046,000		265,547,000		154,527,000
Details of Acquisitions:
Fair value of assets	0		0		1,057,870,000
Liabilities	0	[1]	(3,250,000)	[1]	274,294,000	[1]
Redeemable noncontrolling interest	0	[2]	0	[2]	124,669,000	[2]
Cash paid	0		3,250,000		658,907,000
Less cash acquired	0		0		(40,605,000)
Net cash paid for acquisitions	0		3,250,000		618,302,000
Obligations to sellers					44,500,000
Trade receivables sold without recourse	$ 184,300,000		$ 205,600,000

[1] Includes contingent obligations to sellers of $44.5 million in 2011.

[2] See Note 18 for additional information.