Stockholders' Equity - Restricted Stock Unit and Restricted Stock Activity (Details) - Restricted Stock Units and Restricted Stock $ / shares in Units, shares in Thousands, $ in Billions	9 Months Ended
	Apr. 30, 2023 USD ($) $ / shares shares
Number of Shares
Nonvested at beginning of period (in shares) | shares	11,467
Granted (in shares) | shares	1,419
Vested (in shares) | shares	(2,574)
Forfeited (in shares) | shares	(646)
Nonvested at end of period (in shares) | shares	9,666
Weighted Average Grant Date Fair Value
Nonvested, weighted average grant date fair value, at beginning of period (in dollars per shares) | $ / shares	$ 413.32
Granted, weighted average grant date fair value (in dollars per shares) | $ / shares	417.34
Vested, weighted average grant date fair value (in dollars per shares) | $ / shares	405.30
Forfeited, weighted average grant date fair value (in dollars per shares) | $ / shares	340.84
Nonvested, weighted average grant date fair value, at end of period (in dollars per shares) | $ / shares	$ 420.89
Unrecognized compensation cost related to non-vested RSUs | $	$ 3.5
Weighted average vesting period, in years	2 years 8 months 12 days