Segment Information - Results by segment (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Net revenue:
Total net revenue	$ 14,368	$ 12,726	$ 9,633
Operating income:
Total segment operating income	3,141	2,571	2,500
Unallocated corporate items:
Amortization of acquired technology	(163)	(140)	(50)
Amortization of other acquired intangible assets	(483)	(416)	(146)
Total Online Ecosystem
Net revenue:
Total net revenue	5,759	4,438	2,750
QuickBooks Online Accounting
Net revenue:
Total net revenue	2,849	2,267	1,699
Online Services
Net revenue:
Total net revenue	2,910	2,171	1,051
Total Desktop Ecosystem
Net revenue:
Total net revenue	2,279	2,022	1,938
QuickBooks Desktop Accounting
Net revenue:
Total net revenue	1,110	851	789
Desktop Services and Supplies
Net revenue:
Total net revenue	1,169	1,171	1,149
Small Business & Self-Employed
Net revenue:
Total net revenue	8,038	6,460	4,688
Consumer
Net revenue:
Total net revenue	4,135	3,915	3,563
Credit Karma
Net revenue:
Total net revenue	1,634	1,805	865
ProTax
Net revenue:
Total net revenue	561	546	517
Operating Segments
Operating income:
Total segment operating income	8,062	6,896	5,381
Operating Segments | Small Business & Self-Employed
Operating income:
Total segment operating income	4,532	3,499	2,590
Operating Segments | Consumer
Operating income:
Total segment operating income	2,707	2,483	2,237
Operating Segments | Credit Karma
Operating income:
Total segment operating income	428	531	182
Operating Segments | ProTax
Operating income:
Total segment operating income	395	383	372
Segment Reconciling Items
Unallocated corporate items:
Share-based compensation expense	(1,712)	(1,308)	(753)
Other corporate expenses	(2,563)	(2,461)	(1,932)
Amortization of acquired technology	(163)	(140)	(50)
Amortization of other acquired intangible assets	(483)	(416)	(146)
Total unallocated corporate items	$ (4,921)	$ (4,325)	$ (2,881)