Long-Term Debt (Components Of Long-Term Debt) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
May 27, 2012	May 29, 2011
Total long-term debt	$ 1,805.9	$ 1,408.0
Fair value hedge	3.2	3.7
Less issuance discount	(5.5)	(4.4)
Total long-term debt less issuance discount	1,803.6	1,407.3
Less current portion	(349.9)	0
Long-term debt, excluding current portion	1,453.7	1,407.3
5.625% Senior Notes Due October 2012
Total long-term debt	350.0	350.0
Debt instrument, interest rate, stated percentage (percentage)	5.625%
Maturity date of debt	Oct. 01, 2012
7.125% Debentures Due February 2016
Total long-term debt	100.0	100.0
Debt instrument, interest rate, stated percentage (percentage)	7.125%
Maturity date of debt	Feb. 01, 2016
6.200 Percent Senior Notes Due October 2017
Total long-term debt	500.0	500.0
Debt instrument, interest rate, stated percentage (percentage)	6.20%
Maturity date of debt	Oct. 01, 2017
4.500% Senior Notes Due October 2021
Total long-term debt	400.0	0
6.000% Senior Notes Due August 2035
Total long-term debt	150.0	150.0
Debt instrument, interest rate, stated percentage (percentage)	6.00%
Maturity date of debt	Aug. 01, 2035
6.800% Senior Notes Due October 2037
Total long-term debt	300.0	300.0
Debt instrument, interest rate, stated percentage (percentage)	6.80%
Maturity date of debt	Oct. 01, 2037
ESOP Loan With Variable Rate Of Interest Due December 2018
Total long-term debt	$ 5.9	$ 8.0
Debt instrument, interest rate, stated percentage (percentage)	0.59%
Maturity date of debt	Dec. 01, 2018

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Interest rate stated in the contractual debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc.).

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Fair value as of the balance sheet date of all derivative liabilities designated as interest rate fair value hedging instruments.

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Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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