Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 2,384	$ 2,066	$ 2,062
Other comprehensive income (loss), net of income taxes:
Unrealized gain (loss) on available-for-sale debt securities	0	(10)	(3)
Foreign currency translation gain (loss)	5	(26)	11
Total other comprehensive income (loss), net	5	(36)	8
Comprehensive income	$ 2,389	$ 2,030	$ 2,070