v3.26.3
Derivative Instruments - Effects of Cash Flow Hedges Included in Statements of Income (Detail) - USD ($)
$ in Millions
 12 Months Ended
Aug. 31, 2026
Aug. 31, 2025
Aug. 31, 2024
Derivative [Line Items]      
Revenue $ 2,461.1 $ 3,240.2 $ 3,544.7
Cost of revenue 2,127.4 2,632.7 2,986.2
Interest and foreign exchange 65.0 75.7 100.8
Cash Flow Hedging      
Derivative [Line Items]      
Gain (loss) reclassified from AOCL 14.5 16.8 18.7
Cash Flow Hedging | Sales | Foreign Exchange Contracts      
Derivative [Line Items]      
Gain (loss) reclassified from AOCL 0.3 3.9 2.5
Gain (loss) amount excluded from effectiveness testing 1.9 3.1 2.5
Cash Flow Hedging | Cost of Sales | Foreign Exchange Contracts      
Derivative [Line Items]      
Gain (loss) reclassified from AOCL 6.2 0.1 (0.5)
Gain (loss) amount excluded from effectiveness testing 0.1 0.0 0.9
Cash Flow Hedging | Interest and Foreign Exchange | Interest Rate Swap Contracts      
Derivative [Line Items]      
Gain (loss) reclassified from AOCL $ 8.0 $ 12.8 $ 16.7