Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 2,963	$ 2,384	$ 2,066
Other comprehensive income (loss), net of income taxes:
Unrealized gain (loss) on available-for-sale debt securities	7	0	(10)
Foreign currency translation gain (loss)	(15)	5	(26)
Cumulative translation adjustment reclassified to net income	9	0	0
Total other comprehensive income (loss), net	1	5	(36)
Comprehensive income	$ 2,964	$ 2,389	$ 2,030