Derivative Instruments And Hedging Activities (Notional Values Of Derivative Contracts Designated And Not Designated As Hedging Instruments) (Details) (USD $) In Millions, unless otherwise specified	Feb. 23, 2014	May 26, 2013
Designated as Hedging Instruments | Commodities
Derivatives, Fair Value [Line Items]
Derivative contracts	$ 4.7	$ 18.2
Designated as Hedging Instruments | Foreign currency
Derivatives, Fair Value [Line Items]
Derivative contracts	5.8	20.3
Designated as Hedging Instruments | Interest rate swaps
Derivatives, Fair Value [Line Items]
Derivative contracts	200.0	100.0
Designated as Hedging Instruments | Equity forwards
Derivatives, Fair Value [Line Items]
Derivative contracts	23.5	24.9
Not Designated as Hedging Instruments | Commodities
Derivatives, Fair Value [Line Items]
Derivative contracts	0.3	0.6
Not Designated as Hedging Instruments | Equity forwards
Derivatives, Fair Value [Line Items]
Derivative contracts	$ 42.3	$ 49.1