Fair Value Measurements (Details) (USD $)	Jul. 28, 2013		Apr. 28, 2013
Carrying (Reported) Amount, Fair Value Disclosure
Fair Value Measurements (Textuals) [Abstract]
Long-term Debt, Fair Value			$ 4,870,000,000
Level 2 | Estimate of Fair Value, Fair Value Disclosure
Fair Value Measurements (Textuals) [Abstract]
Long-term Debt, Fair Value			5,350,000,000
Fair Value, Measurements, Recurring
Assets:
Derivatives	182,826,000	[1]	68,892,000	[1]
Total assets at fair value	182,826,000		68,892,000
Liabilities:
Derivatives	202,834,000	[1]	79,871,000	[1]
Total liabilities at fair value	202,834,000		79,871,000
Fair Value, Measurements, Recurring | Level 1
Assets:
Derivatives	0	[1]	0	[1]
Total assets at fair value	0		0
Liabilities:
Derivatives	0	[1]	0	[1]
Total liabilities at fair value	0		0
Fair Value, Measurements, Recurring | Level 2
Assets:
Derivatives	182,826,000	[1]	68,892,000	[1]
Total assets at fair value	182,826,000		68,892,000
Liabilities:
Derivatives	202,834,000	[1]	79,871,000	[1]
Total liabilities at fair value	202,834,000		79,871,000
Fair Value, Measurements, Recurring | Level 3
Assets:
Derivatives	0	[1]	0	[1]
Total assets at fair value	0		0
Liabilities:
Derivatives	0	[1]	0	[1]
Total liabilities at fair value	$ 0		$ 0

[1] Foreign currency derivative contracts are valued based on observable market spot and forward rates and classified within Level 2 of the fair value hierarchy. Interest rate swaps are valued based on observable market swap rates and classified within Level 2 of the fair value hierarchy. Cross-currency interest rate swaps are valued based on observable market spot and swap rates and classified within Level 2 of the fair value hierarchy. Cross-currency swaps are valued based on observable market spot and swap rates and classified within Level 2 of the fair value hierarchy. The total rate of return swap is valued based on observable market swap rates and the Company's credit spread, and is classified within Level 2 of the fair value hierarchy.