Income Taxes - Additional information (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Operating Loss Carryforwards [Line Items]
Excess tax expense (benefits) related to stock-based compensation	$ (32)	$ (134)	$ (126)
Tax benefit realized on transfer of certain intangible assets	32
Valuation allowance	235	244
(Decrease) Increase in valuation allowance	9	(39)
Unrecognized tax benefits	246	216	190	$ 101
Favorable net impact to income tax expense due to recognition of tax benefits	152
Long term income tax receivable	85	89
Domestic Country
Operating Loss Carryforwards [Line Items]
Excess tax expense (benefits) related to stock-based compensation	(26)	(112)	(105)
Operating loss carryforwards	52
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Excess tax expense (benefits) related to stock-based compensation	6	$ 22	$ 21
Valuation allowance	5
Operating loss carryforwards	150
Deferred tax asset net operating loss carryforward	10
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	96
Research Tax Credit Carryforward | State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Deferred tax assets, tax credit carryforwards	$ 343