Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2023	Jan. 31, 2022
Revenue from External Customer [Line Items]
Net revenue:	$ 3,041	$ 2,673	$ 5,638	$ 4,680
Small Business & Self-Employed
Revenue from External Customer [Line Items]
Net revenue:	1,897	1,581	3,885	3,024
Online Ecosystem Subsegment | Small Business & Self-Employed
Revenue from External Customer [Line Items]
Net revenue:	1,391	1,121	2,740	1,966
Online Ecosystem Subsegment | Small Business & Self-Employed | QuickBooks
Revenue from External Customer [Line Items]
Net revenue:	696	547	1,364	1,066
Online Ecosystem Subsegment | Small Business & Self-Employed | Online Services
Revenue from External Customer [Line Items]
Net revenue:	695	574	1,376	900
Desktop Ecosystem Subsegment | Small Business & Self-Employed
Revenue from External Customer [Line Items]
Net revenue:	506	460	1,145	1,058
Desktop Ecosystem Subsegment | Small Business & Self-Employed | QuickBooks
Revenue from External Customer [Line Items]
Net revenue:	215	169	527	436
Desktop Ecosystem Subsegment | Small Business & Self-Employed | Desktop Services and Supplies
Revenue from External Customer [Line Items]
Net revenue:	$ 291	$ 291	$ 618	$ 622