Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2024	Jan. 31, 2023
Revenue from External Customer [Line Items]
Net revenue:	$ 3,386	$ 3,041	$ 6,364	$ 5,638
Small Business & Self-Employed
Revenue from External Customer [Line Items]
Net revenue:	2,245	1,897	4,589	3,885
Online Ecosystem Subsegment | Small Business & Self-Employed
Revenue from External Customer [Line Items]
Net revenue:	1,688	1,391	3,306	2,740
Online Ecosystem Subsegment | Small Business & Self-Employed | QuickBooks
Revenue from External Customer [Line Items]
Net revenue:	826	696	1,624	1,364
Online Ecosystem Subsegment | Small Business & Self-Employed | Online Services
Revenue from External Customer [Line Items]
Net revenue:	862	695	1,682	1,376
Desktop Ecosystem Subsegment | Small Business & Self-Employed
Revenue from External Customer [Line Items]
Net revenue:	557	506	1,283	1,145
Desktop Ecosystem Subsegment | Small Business & Self-Employed | QuickBooks
Revenue from External Customer [Line Items]
Net revenue:	256	215	632	527
Desktop Ecosystem Subsegment | Small Business & Self-Employed | Desktop Services and Supplies
Revenue from External Customer [Line Items]
Net revenue:	$ 301	$ 291	$ 651	$ 618