Stockholders' Equity - Stock Option Activity (Details) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Oct. 31, 2023 USD ($) $ / shares shares
Number of Shares
Options granted, number of shares (in shares)	0
Employee Stock Option
Number of Shares
Options outstanding, beginning balance (in shares)	2,130
Options granted, number of shares (in shares)	0
Options exercised, number of shares (in shares)	(153)
Options canceled or expired, number of shares (in shares)	(83)
Options outstanding, ending balance (in shares)	1,894
Exercisable (in shares)	1,109
Weighted- Average Exercise Price Per Share
Weighted average exercise price per share, beginning balance (in dollars per share) | $ / shares	$ 360.17
Options granted, weighted average exercise price per share (in dollars per share) | $ / shares	0
Options exercised, weighted average exercise price per share (in dollars per share) | $ / shares	255.01
Options canceled or expired, weighted average exercise price per share (in dollars per share) | $ / shares	464.52
Weighted average exercise price per share, ending balance (in dollars per share) | $ / shares	364.05
Exercisable, weighted average exercise price per share (in dollars per share) | $ / shares	$ 288.97
Unrecognized compensation cost related to non-vested share based compensation expense | $	$ 102
Expected weighted average vesting period to recognize compensation cost related to share based compensation expense, in years	3 years