Share-Based Compensation (Summary Of Type And Fair Value Of Share-Based Compensation Awards) (Details) - $ / shares	3 Months Ended
	Nov. 30, 2024	Nov. 30, 2023
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units granted	43,011	31,199
Weighted average grant-date fair value per award	$ 42.19	$ 44.22
Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units granted	31,525	26,685
Weighted average grant-date fair value per award	$ 117.11	$ 116.71
Performance Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units granted	28,280	21,248
Weighted average grant-date fair value per award	$ 133.3	$ 141.61