Segment Information - Narrative (Details) $ in Millions	1 Months Ended	3 Months Ended
	Aug. 31, 2023 USD ($)	Oct. 31, 2023 USD ($) segment	Oct. 31, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment		4
Total operating income		$ 307	$ 76
Operating Segments
Segment Reporting Information [Line Items]
Total operating income		1,679	1,342
Operating Segments | Small Business & Self-Employed
Segment Reporting Information [Line Items]
Total operating income		1,492	1,188
Operating Segments | Small Business & Self-Employed | Reorganization of Certain Workplace and Real Estate Functions
Segment Reporting Information [Line Items]
Other corporate expenses	$ (9)
Operating Segments | Consumer
Segment Reporting Information [Line Items]
Total operating income		67	51
Operating Segments | Consumer | Reorganization of Certain Technology Functions
Segment Reporting Information [Line Items]
Other corporate expenses	(40)
Operating Segments | ProTax
Segment Reporting Information [Line Items]
Total operating income		14	9
Operating Segments | ProTax | Reorganization of Certain Technology Functions
Segment Reporting Information [Line Items]
Other corporate expenses	(15)
Segment Reconciling Items
Segment Reporting Information [Line Items]
Other corporate expenses		$ 719	$ 682
Segment Reconciling Items | Reorganization of Certain Workplace and Real Estate Functions
Segment Reporting Information [Line Items]
Other corporate expenses	9
Segment Reconciling Items | Reorganization of Certain Technology Functions
Segment Reporting Information [Line Items]
Other corporate expenses	40
Segment Reconciling Items | Reorganization of Certain Technology Functions
Segment Reporting Information [Line Items]
Other corporate expenses	$ 15
Non-US | Revenue Benchmark | Geographic Concentration Risk
Segment Reporting Information [Line Items]
International total net revenue as a percentage of total		10.00%	10.00%