Associate Benefit Plans (Summary Of Stock Options By Range Of Exercise Price) (Details) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
Aug. 31, 2019 USD ($) $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of options outstanding at August 31, 2019 \| shares	1,894
Weighted average remaining contractual life of options outstanding	4 years 1 month 6 days
Weighted average exercise price of options outstanding	$ 74.73
Intrinsic Value of options outstanding \| $	$ 3,322
Number of options exercisable at August 31, 2019 \| shares	888
Weighted average remaining contractual life of options exercisable	3 years 1 month 6 days
Weighted average exercise price of options exercisable	$ 72.63
Intrinsic Value of options exercisable \| $	$ 2,277
58.90 - 69.46 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower limit	$ 58.90
Range of exercise prices, upper limit	$ 69.46
Number of options outstanding at August 31, 2019 \| shares	386
Weighted average remaining contractual life of options outstanding	3 years 1 month 6 days
Weighted average exercise price of options outstanding	$ 59.02
Intrinsic Value of options outstanding \| $	$ 3,322
Number of options exercisable at August 31, 2019 \| shares	266
Weighted average remaining contractual life of options exercisable	3 years 1 month 6 days
Weighted average exercise price of options exercisable	$ 59.08
Intrinsic Value of options exercisable \| $	$ 2,277
69.47 - 72.33 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower limit	$ 69.47
Range of exercise prices, upper limit	$ 72.23
Number of options outstanding at August 31, 2019 \| shares	433
Weighted average remaining contractual life of options outstanding	4 years 2 months 12 days
Weighted average exercise price of options outstanding	$ 71.33
Number of options exercisable at August 31, 2019 \| shares	204
Weighted average remaining contractual life of options exercisable	4 years 2 months 12 days
Weighted average exercise price of options exercisable	$ 71.33
72.34 - 81.76 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower limit	72.24
Range of exercise prices, upper limit	$ 81.76
Number of options outstanding at August 31, 2019 \| shares	501
Weighted average remaining contractual life of options outstanding	4 years 2 months 12 days
Weighted average exercise price of options outstanding	$ 80.12
Number of options exercisable at August 31, 2019 \| shares	214
Weighted average remaining contractual life of options exercisable	3 years
Weighted average exercise price of options exercisable	$ 80.81
81.77 - 83.03 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices, lower limit	81.77
Range of exercise prices, upper limit	$ 83.03
Number of options outstanding at August 31, 2019 \| shares	574
Weighted average remaining contractual life of options outstanding	4 years 8 months 12 days
Weighted average exercise price of options outstanding	$ 83.14
Number of options exercisable at August 31, 2019 \| shares	204
Weighted average remaining contractual life of options exercisable	2 years 2 months 12 days
Weighted average exercise price of options exercisable	$ 83.03

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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