Weighted Average Assumptions Used to Determine Benefit Obligations and Net Periodic Benefit Cost (Detail) - Domestic Plan Member	12 Months Ended
	Aug. 31, 2026	Aug. 31, 2025	Aug. 31, 2024
Assumptions for benefit obligations:
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	5.70%	5.20%	5.00%
Assumptions for net periodic benefit cost:
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	5.20%	5.00%	5.40%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets	6.35%	6.20%	5.70%