Segment Information - Narrative (Details) $ in Millions	3 Months Ended
Segment Information - Narrative (Details) $ in Millions	Oct. 31, 2025 USD ($) segment	Oct. 31, 2024 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	2
Operating Segments \| Global Business Solutions \| Reorganization of Certain Workplace and Real Estate Functions
Segment Reporting Information [Line Items]
Other corporate expenses		$ 3
Operating Segments \| Consumer \| Reorganization of Certain Technology Functions
Segment Reporting Information [Line Items]
Other corporate expenses		(152)
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
Non-US \| Revenue Benchmark \| Geographic Concentration Risk
Segment Reporting Information [Line Items]
International total net revenue as a percentage of total	9.00%	10.00%

INTUIT INC. 10-Q