Property, Equipment and Technology, Net - Summary of Property, Equipment and Technology, Net (Detail) - USD ($) $ in Millions	Sep. 30, 2021	Sep. 30, 2020
Property, Plant and Equipment [Line Items]
Total property, equipment and technology	$ 7,674	$ 7,161
Accumulated depreciation and amortization	(4,959)	(4,424)
Property, equipment and technology, net	2,715	2,737
Land
Property, Plant and Equipment [Line Items]
Total property, equipment and technology	72	71
Buildings and building improvements
Property, Plant and Equipment [Line Items]
Total property, equipment and technology	1,008	1,007
Furniture, equipment and leasehold improvements
Property, Plant and Equipment [Line Items]
Total property, equipment and technology	2,048	1,997
Construction-in-progress
Property, Plant and Equipment [Line Items]
Total property, equipment and technology	226	163
Technology
Property, Plant and Equipment [Line Items]
Total property, equipment and technology	$ 4,320	$ 3,923

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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