Stockholders' Equity - Schedule of Total Share-based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 31, 2025	Oct. 31, 2024
Options Outstanding
Total share-based compensation expense	$ 543	$ 511
Cost of revenue
Options Outstanding
Total share-based compensation expense	97	111
Selling and marketing
Options Outstanding
Total share-based compensation expense	156	137
Research and development
Options Outstanding
Total share-based compensation expense	185	161
General and administrative
Options Outstanding
Total share-based compensation expense	$ 105	$ 102