Stock-Based Compensation (Summary Of Stock Option Activity) (Details) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Mar. 04, 2017 USD ($) $ / shares shares
Stock-Based Compensation [Abstract]
Outstanding, Beginning Balance, Options | shares	1,645
Granted, Options | shares	537
Exercised, Options | shares	(329)
Canceled/Forfeited, Options | shares	(30)
Outstanding, Ending Balance, Options | shares	1,823
Exercisable, Ending Balance, Options | shares	655
Outstanding, Beginning Balance, Weighted-Average Exercise Price per Share | $ / shares	$ 69.86
Granted, Weighted-Average Exercise Price per Share | $ / shares	71.33
Exercised, Weighted-Average Exercise Price per Share | $ / shares	67.24
Canceled/Forfeited, Weighted-Average Exercise Price per Share | $ / shares	70.91
Outstanding, Ending Balance, Weighted-Average Exercise Price per Share | $ / shares	70.75
Exercisable, Ending Balance, Weighted-Average Exercise Price per Share | $ / shares	$ 73.54
Outstanding, Ending Balance, Weighted-Average Remaining Contractual Term (in years)	5 years
Exercisable, Ending Balance, Weighted-Average Remaining Contractual Term (in years)	3 years 7 months 6 days
Outstanding, Ending Balance, Aggregate Intrinsic Value | $	$ 61,232
Exercisable, Ending Balance, Aggregate Intrinsic Value | $	$ 20,176