Income Taxes - Additional information (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Operating Loss Carryforwards [Line Items]
Excess tax expense (benefits) related to stock-based compensation	$ (183)	$ (32)	$ (134)
Valuation allowance	227	235
(Decrease) Increase in valuation allowance	8	(9)
Unrecognized tax benefits	327	246	216	$ 190
Favorable net impact to income tax expense due to recognition of tax benefits	210
Long term income tax receivable	66	85
Domestic Country
Operating Loss Carryforwards [Line Items]
Excess tax expense (benefits) related to stock-based compensation	(153)	(26)	(112)
Operating loss carryforwards	37
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Excess tax expense (benefits) related to stock-based compensation	30	$ 6	$ 22
Valuation allowance	6
Operating loss carryforwards	150
Deferred tax asset net operating loss carryforward	11
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	19
Research Tax Credit Carryforward | State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Deferred tax assets, tax credit carryforwards	$ 335