Stockholders' Equity - Restricted Stock Unit and Restricted Stock Activity (Details) - Restricted Stock Units and Restricted Stock $ / shares in Units, shares in Thousands, $ in Billions	6 Months Ended
	Jan. 31, 2024 USD ($) $ / shares shares
Number of Shares
Nonvested at beginning of period (in shares) | shares	11,894
Granted (in shares) | shares	583
Vested (in shares) | shares	(2,030)
Forfeited (in shares) | shares	(665)
Nonvested at end of period (in shares) | shares	9,782
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	554.87
Vested, weighted average grant date fair value (in dollars per shares) | $ / shares	414.77
Forfeited, weighted average grant date fair value (in dollars per shares) | $ / shares	362.95
Nonvested, weighted average grant date fair value, at end of period (in dollars per shares) | $ / shares	$ 449.66
Unrecognized compensation cost related to non-vested RSUs | $	$ 3.9
Weighted average vesting period, in years	2 years 8 months 12 days