Fair Value Measurements (Fair Value Measurements Using Significant Unobservable Inputs Reconciliation) (Details) (Derivatives: Commodities, Futures, Swaps & Options, USD $) In Millions, unless otherwise specified	6 Months Ended
	Nov. 24, 2013
Derivatives: Commodities, Futures, Swaps & Options
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balances at May 26, 2013	$ 0
Amount of gain (loss) recognized in earnings	(0.3)	[1]
Purchases, sales and settlements	0
Transfers in and/or out of Level 3	0
Balance at November 24, 2013	$ (0.3)

[1] The location of the loss recognized in earnings is restaurant expenses, which is a component of cost of sales.