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Employee and Retiree Benefits (Narrative) (Details)	9 Months Ended
	May. 30, 2015
Compensation and Retirement Disclosure [Abstract]
Postretirement health care benefits age requirement before distribution occurs	55 years
Postretirement health care benefits continuous service requirement	15 years

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Defined Benefit Plan, Age Requirement Before Distribution Occurs

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Defined Benefit Plan, Service Requirement

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