Stockholders' Equity - Restricted Stock Unit and Restricted Stock Activity (Details) - Restricted Stock Units and Restricted Stock $ / shares in Units, shares in Thousands, $ in Billions	3 Months Ended
	Oct. 31, 2023 USD ($) $ / shares shares
Number of Shares
Nonvested at beginning of period (in shares) | shares	11,894
Granted (in shares) | shares	312
Vested (in shares) | shares	(908)
Forfeited (in shares) | shares	(456)
Nonvested at end of period (in shares) | shares	10,842
Weighted- Average Grant Date Fair Value
Nonvested, weighted average grant date fair value, at beginning of period (in dollars per shares) | $ / shares	$ 433.70
Granted, weighted average grant date fair value (in dollars per shares) | $ / shares	526.66
Vested, weighted average grant date fair value (in dollars per shares) | $ / shares	409.95
Forfeited, weighted average grant date fair value (in dollars per shares) | $ / shares	340.35
Nonvested, weighted average grant date fair value, at end of period (in dollars per shares) | $ / shares	$ 442.29
Unrecognized compensation cost related to non-vested RSUs | $	$ 4.3
Weighted average vesting period, in years	2 years 9 months 18 days