Income Taxes 6 (Details) (USD $)	12 Months Ended			3 Months Ended	12 Months Ended
	Apr. 29, 2012	Apr. 27, 2011	Apr. 28, 2010	Oct. 26, 2011 Assets Revaluation [Member] Foreign Subsidiary [Member]	Apr. 29, 2012 Assets Revaluation [Member] Foreign Subsidiary [Member]
Income Tax Contingency [Line Items]
Tax Benefits Related to Stock Options and Other Equity Investments	$ 16,800,000	$ 21,400,000	$ 9,300,000
Increase (Decrease) in Deferred Tax Assets				220,200,000
Income Tax Expense (Benefit)	243,535,000	368,221,000	358,514,000		(34,900,000)
Taxes Payable, Current and Noncurrent, Gross				34,800,000
Income Taxes Paid					10,400,000
Taxes Payable, Current	101,540,000	98,325,000			13,900,000
Cash Taxes, Tax Amortization Period					5 years
Cash Taxes, Expected Adjustment					69,100,000
Foreign Deferred Tax Assets and Valuation Allowances Related to Internally Generated Intangible Assets	127,700,000
Operating Loss Carryforwards Foreign	493,400,000
Operating Loss Carry Forwards Foreign Expiring Current Through Twenty Years	252,700,000
Operating Loss Carryforwards Foreign Do Not Expire	240,700,000
Tax Credit Carryforwards Deferred Tax Assets Foreign	49,100,000
Operating Loss Carryforwards State	11,900,000
Valuation Allowance, Deferred Tax Asset, Change in Amount	26,200,000	1,900,000	3,400,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	38,900,000	56,500,000
Unrecognized Tax Benefits, Interest on Income Taxes Expense	9,500,000	1,300,000	5,200,000
Unrecognized Tax Benefits, Income Tax Penalties Expense	4,700,000	100,000	1,000,000
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	16,000,000	27,300,000
Unrecognized Tax Benefits, Income Tax Penalties Accrued	13,800,000	21,100,000
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	26,200,000
Undistributed Earnings Of Foreign Subsidiaries Considered To Be Indefinitely Reinvested	$ 5,100,000,000