Senior Long-Term Debt, Subordinated Debt and Loan Agreements (Details) (USD $) In Millions, unless otherwise specified	May 27, 2012	May 29, 2011
Summary of Senior Long-Term Debt, Subordinated Debt And Loan Agreements
Total face value senior debt	$ 2,742.9	$ 3,078.9
Total face value subordinated debt	195.9	195.9
Total debt face value	2,938.8	3,274.8
Unamortized discounts/premiums	(59.8)	(68.3)
Adjustment due to hedging activity	17.7	27.3
Less current installments	(38.1)	(363.5)
Total long-term debt	2,858.6	2,870.3
8.25% senior debt due September 2030 [Member]
Summary of Senior Long-Term Debt, Subordinated Debt And Loan Agreements
Total face value senior debt	300.0	300.0
7.0% senior debt due October 2028 [Member]
Summary of Senior Long-Term Debt, Subordinated Debt And Loan Agreements
Total face value senior debt	382.2	382.2
6.7% senior debt due August 2027 [Member]
Summary of Senior Long-Term Debt, Subordinated Debt And Loan Agreements
Total face value senior debt	9.2	9.2
7.125% senior debt due October 2026 [Member]
Summary of Senior Long-Term Debt, Subordinated Debt And Loan Agreements
Total face value senior debt	372.4	372.4
7.0% senior debt due April 2019 [Member]
Summary of Senior Long-Term Debt, Subordinated Debt And Loan Agreements
Total face value senior debt	500.0	500.0
5.819% senior debt due June 2017 [Member]
Summary of Senior Long-Term Debt, Subordinated Debt And Loan Agreements
Total face value senior debt	500.0	500.0
5.875% senior debt due April 2014 [Member]
Summary of Senior Long-Term Debt, Subordinated Debt And Loan Agreements
Total face value senior debt	500.0	500.0
6.75% senior debt due September 2011 [Member]
Summary of Senior Long-Term Debt, Subordinated Debt And Loan Agreements
Total face value senior debt		342.7
2.00% to 9.59% lease financing obligations due on various dates through 2029 [Member]
Summary of Senior Long-Term Debt, Subordinated Debt And Loan Agreements
Total face value senior debt	106.0	105.4
Other indebtedness [Member]
Summary of Senior Long-Term Debt, Subordinated Debt And Loan Agreements
Total face value senior debt	73.1	67.0
9.75% subordinated debt due March 2021 [Member]
Summary of Senior Long-Term Debt, Subordinated Debt And Loan Agreements
Total face value subordinated debt	$ 195.9	$ 195.9