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, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Total	$ 2,329	$ 1,830
U.S.
Segment Reporting Information [Line Items]
Total	1,738	1,286
International
Segment Reporting Information [Line Items]
Total	$ 591	$ 544