Other Liabilities and Commitments - Other Current Liabilities (Details) - USD ($) $ in Millions	Jan. 31, 2023	Jul. 31, 2022
Other Liabilities Disclosure [Abstract]
Amounts due to a bank partner	$ 336	$ 0
Executive deferred compensation plan liabilities	153	147
Current portion of operating lease liabilities	86	84
Reserve for Returns, Credits, and Promotional Discounts	82	31
Sales, property, and other taxes	58	40
Accrued settlement for state attorneys general	0	141
Other	105	136
Total other current liabilities	$ 820	$ 579