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Enterprise-wide Disclosures and Concentration of Business - Long-Lived Net Property, Equipment and Technology Assets Classified by Major Geographic Area (Detail) - USD ($)
$ in Millions
Sep. 30, 2023
Sep. 30, 2022
Segment Reporting Information [Line Items]    
Total $ 1,830 $ 1,843
U.S.    
Segment Reporting Information [Line Items]    
Total 1,286 1,312
International    
Segment Reporting Information [Line Items]    
Total $ 544 $ 531