Leases (Annual Future Lease Commitments) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
May 26, 2013	May 27, 2012
Leases [Abstract]
Capital lease, 2014	$ 5.4
Capital lease, 2015	5.5
Capital lease, 2016	5.7
Capital lease, 2017	5.7
Capital lease, 2018	5.9
Capital lease, Thereafter	61.3
Capital lease, Total future lease commitments	89.5
Capital lease, Less imputed interest (at 6.5%)	(35.1)
Capital lease, Present value of future lease commitments	54.4
Capital lease, Less current maturities	(1.9)
Obligations under capital leases, net of current installments	52.5	54.4
Operating lease, 2014	186.0
Operating lease, 2015	178.6
Operating lease, 2016	163.1
Operating lease, 2017	144.4
Operating lease, 2018	124.5
Operating lease, Thereafter	366.7
Operating lease, Total future lease commitments	$ 1,163.3
Capital lease, imputed interest (percentage)	6.50%

Capital lease imputed interest rate.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid within one year (or one operating cycle, if longer) of the balance sheet date.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

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Amount of minimum lease payments for capital leases.

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Amount of minimum lease payments maturing in the next fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments maturing in the fifth fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments maturing in the forth fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments maturing in the third fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments maturing in the second fiscal year following the latest fiscal year for capital leases.

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Amount of minimum lease payments maturing after the fifth fiscal year following the latest fiscal year for capital leases.

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Amount necessary to reduce net minimum lease payments to present value for capital leases.

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Present value of minimum lease payments for capital leases net of executory costs, including amounts paid by the lessee to the lessor for insurance, maintenance and taxes.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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