Notional Values of Derivative Instruments (Detail) (Commodity Future Contracts, USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 28, 2014		Jun. 29, 2013
Grains and Oilseeds
Derivative, Notional Amount [Abstract]
Number Of Months Of Hedge Coverage	11	[1]
Derivative Asset, Notional Amount	$ 47	[1]	$ 34	[1]
Energy
Derivative, Notional Amount [Abstract]
Number Of Months Of Hedge Coverage	23	[1]
Derivative Asset, Notional Amount	30	[1]	29	[1]
Other Commodities
Derivative, Notional Amount [Abstract]
Number Of Months Of Hedge Coverage	8	[1]
Derivative Asset, Notional Amount	$ 7	[1]	$ 20	[1]

[1] 1 The notional values of commodity futures contracts are determined by the initial cost of the contract.