Stock-Based Compensation (Summary Of Stock Option Activity) (Details) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 03, 2016 USD ($) $ / shares shares
Stock-Based Compensation [Abstract]
Outstanding, Beginning Balance, Options | shares	1,645
Granted, Options | shares	537
Exercised, Options | shares	(104)
Canceled/Forfeited, Options | shares	(2)
Outstanding, Ending Balance, Options | shares	2,076
Exercisable, Ending Balance, Options | shares	872
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	66.39
Canceled/Forfeited, Weighted-Average Exercise Price per Share | $ / shares	82.41
Outstanding, Ending Balance, Weighted-Average Exercise Price per Share | $ / shares	70.41
Exercisable, Ending Balance, Weighted-Average Exercise Price per Share | $ / shares	$ 72.06
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 | $	$ 42,475
Exercisable, Ending Balance, Aggregate Intrinsic Value | $	$ 16,400