Segment Information - Results by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2023	Jan. 31, 2022
Financial results by reportable segment
Net revenue:	$ 3,041	$ 2,673	$ 5,638	$ 4,680
Total operating income	270	56	346	251
Unallocated corporate items:
Share-based compensation expense	(423)	(336)	(845)	(616)
Amortization of acquired technology	(41)	(42)	(82)	(57)
Amortization of other acquired intangible assets	(121)	(121)	(242)	(174)
Operating Segments
Financial results by reportable segment
Total operating income	1,505	1,162	2,783	2,230
Segment Reconciling Items
Unallocated corporate items:
Share-based compensation expense	(423)	(336)	(845)	(616)
Other corporate expenses	(650)	(607)	(1,268)	(1,132)
Amortization of acquired technology	(41)	(42)	(82)	(57)
Amortization of other acquired intangible assets	(121)	(121)	(242)	(174)
Total unallocated corporate items	(1,235)	(1,106)	(2,437)	(1,979)
Small Business & Self-Employed
Financial results by reportable segment
Net revenue:	1,897	1,581	3,885	3,024
Small Business & Self-Employed | Operating Segments
Financial results by reportable segment
Net revenue:	1,897	1,581	3,885	3,024
Total operating income	1,021	773	2,200	1,694
Consumer | Operating Segments
Financial results by reportable segment
Net revenue:	516	411	666	531
Total operating income	177	53	188	42
Credit Karma | Operating Segments
Financial results by reportable segment
Net revenue:	375	444	800	862
Total operating income	96	141	190	310
ProTax | Operating Segments
Financial results by reportable segment
Net revenue:	253	237	287	263
Total operating income	$ 211	$ 195	$ 205	$ 184