Segment Information - Results by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2024	Jan. 31, 2023
Financial results by reportable segment
Net revenue:	$ 3,386	$ 3,041	$ 6,364	$ 5,638
Total operating income	369	270	676	346
Unallocated corporate items:
Share-based compensation expense	(475)	(423)	(970)	(845)
Amortization of acquired technology	(36)	(41)	(74)	(82)
Amortization of other acquired intangible assets	(120)	(121)	(240)	(242)
Operating Segments
Financial results by reportable segment
Total operating income	1,768	1,574	3,447	2,916
Segment Reconciling Items
Unallocated corporate items:
Share-based compensation expense	(475)	(423)	(970)	(845)
Other corporate expenses	(768)	(719)	(1,487)	(1,401)
Amortization of acquired technology	(36)	(41)	(74)	(82)
Amortization of other acquired intangible assets	(120)	(121)	(240)	(242)
Total unallocated corporate items	(1,399)	(1,304)	(2,771)	(2,570)
Small Business & Self-Employed
Financial results by reportable segment
Net revenue:	2,245	1,897	4,589	3,885
Small Business & Self-Employed | Operating Segments
Financial results by reportable segment
Net revenue:	2,245	1,897	4,589	3,885
Total operating income	1,323	1,031	2,815	2,219
Consumer | Operating Segments
Financial results by reportable segment
Net revenue:	492	516	679	666
Total operating income	134	220	201	271
Credit Karma | Operating Segments
Financial results by reportable segment
Net revenue:	375	375	780	800
Total operating income	64	96	170	190
ProTax | Operating Segments
Financial results by reportable segment
Net revenue:	274	253	316	287
Total operating income	$ 247	$ 227	$ 261	$ 236