Segment Information - Reconciliation of Revenue from Segments (Details) - USD ($) $ in Millions	12 Months Ended
Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2024
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net revenue	$ 21,448	$ 18,831	$ 16,285
Global Business Solutions
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net revenue	12,864	11,077	9,533
Consumer
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net revenue	8,584	7,754	6,752
QuickBooks Online Accounting \| Global Business Solutions
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net revenue	5,051	4,120	3,379
Online Services \| Global Business Solutions
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net revenue	4,867	4,182	3,513
Total Online Ecosystem \| Global Business Solutions
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net revenue	9,918	8,302	6,892
QuickBooks Desktop Accounting \| Global Business Solutions
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net revenue	1,801	1,672	1,575
Desktop Services and Supplies \| Global Business Solutions
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net revenue	1,145	1,103	1,066
Total Desktop Ecosystem \| Global Business Solutions
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net revenue	2,946	2,775	2,641
TurboTax \| Consumer
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net revenue	5,296	4,933	4,508
Credit Karma \| Consumer
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net revenue	2,641	2,200	1,645
ProTax \| Consumer
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Total net revenue	$ 647	$ 621	$ 599