Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 2,389	$ 2,087	$ 2,983	$ 2,295
Other comprehensive income (loss), net of income taxes:
Unrealized gain (loss) on available-for-sale debt securities	(1)	1	5	1
Foreign currency translation gain (loss)	(6)	1	(17)	(2)
Cumulative translation adjustment reclassified to net income	9	0	9	0
Total other comprehensive income (loss), net	2	2	(3)	(1)
Comprehensive income	$ 2,391	$ 2,089	$ 2,980	$ 2,294