Leases - Lease Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2022
Leases [Abstract]
Operating lease costs	$ 440	$ 390	$ 349
Variable lease costs	92	85	72
Short-term lease costs	28	23	14
Total lease costs	$ 560	$ 498	$ 435