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Postretirement and Other Employee Benefits - Additional Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Aug. 31, 2022
Aug. 31, 2021
Aug. 31, 2020
Aug. 31, 2023
Pension and Other Postretirement Benefits Disclosure [Line Items]        
Defined Benefit Plan, Type [Extensible Enumeration] Pension Plan [Member]      
Service period 30 days      
Company contributions $ 63 $ 56 $ 56  
Minimum        
Pension and Other Postretirement Benefits Disclosure [Line Items]        
Funded pension plans 23      
Maximum        
Pension and Other Postretirement Benefits Disclosure [Line Items]        
Funded pension plans $ 28      
Global equity securities | Minimum | Expected        
Pension and Other Postretirement Benefits Disclosure [Line Items]        
Target allocation percentage (as a percent)       40.00%
Debt securities | Minimum | Expected        
Pension and Other Postretirement Benefits Disclosure [Line Items]        
Target allocation percentage (as a percent)       60.00%
Foreign Plan        
Pension and Other Postretirement Benefits Disclosure [Line Items]        
Service period 3 years      
Foreign Plan | Switzerland Plan        
Pension and Other Postretirement Benefits Disclosure [Line Items]        
Service period 8 years