Leases - Supplemental Balance Sheet (Details) - USD ($) $ in Millions	Oct. 31, 2024	Jul. 31, 2024
Leases [Abstract]
Operating lease right-of-use assets	$ 538	$ 411
Other current liabilities	65	71
Operating lease liabilities	592	458
Total operating lease liabilities	$ 657	$ 529
Operating lease, liability, current, statement of financial position	Other Liabilities, Current	Other Liabilities, Current