Description of Business and Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Jul. 31, 2025
Segment Reporting Information [Line Items]
Revenue recognized	$ 590	$ 524
Description of timing	12 months
Deferred revenue	$ 3		$ 4
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment
Segment Reporting Information [Line Items]
Other corporate expenses	$ 1,676	1,482
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment | Reorganization of Certain Workplace and Real Estate Functions
Segment Reporting Information [Line Items]
Other corporate expenses		(3)
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment | Reorganization of Certain Technology Functions
Segment Reporting Information [Line Items]
Other corporate expenses		152
Global Business Solutions | Operating Segments | Reorganization of Certain Workplace and Real Estate Functions
Segment Reporting Information [Line Items]
Other corporate expenses		3
Consumer | Operating Segments | Reorganization of Certain Technology Functions
Segment Reporting Information [Line Items]
Other corporate expenses		$ (152)