Segment Information - Schedule of Reconciliation of Revenue from Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2026	Apr. 30, 2025
Revenue from External Customer [Line Items]
Total net revenue	$ 8,558	$ 7,754	$ 17,094	$ 15,000
Global Business Solutions
Revenue from External Customer [Line Items]
Total net revenue	3,285	2,849	9,440	8,064
Consumer
Revenue from External Customer [Line Items]
Total net revenue	5,273	4,905	7,654	6,936
QuickBooks Online Accounting \| Global Business Solutions
Revenue from External Customer [Line Items]
Total net revenue	1,278	1,044	3,732	3,017
Online Services \| Global Business Solutions
Revenue from External Customer [Line Items]
Total net revenue	1,219	1,059	3,583	3,067
Total Online Ecosystem \| Global Business Solutions
Revenue from External Customer [Line Items]
Total net revenue	2,497	2,103	7,315	6,084
QuickBooks Desktop Accounting \| Global Business Solutions
Revenue from External Customer [Line Items]
Total net revenue	507	476	1,271	1,160
Desktop Services and Supplies \| Global Business Solutions
Revenue from External Customer [Line Items]
Total net revenue	281	270	854	820
Total Desktop Ecosystem \| Global Business Solutions
Revenue from External Customer [Line Items]
Total net revenue	788	746	2,125	1,980
TurboTax \| Consumer
Revenue from External Customer [Line Items]
Total net revenue	4,364	4,078	5,143	4,785
Credit Karma \| Consumer
Revenue from External Customer [Line Items]
Total net revenue	631	549	1,898	1,562
ProTax \| Consumer
Revenue from External Customer [Line Items]
Total net revenue	$ 278	$ 278	$ 613	$ 589