Acquistions (Narrative) (Details) - Pacific Foods [Member] $ in Millions	3 Months Ended
	Oct. 29, 2017 USD ($)
Business Acquisition [Line Items]
Future Payments To Acquire Business	$ 700
Business combination, potential termination fee	$ 50
Notice Period in Days	60 days
Minimum [Member]
Business Acquisition [Line Items]
Litigation Against Business Potentially To Be Acquired	$ 250