Description of Business and Summary of Significant Accounting Policies - Schedule of Basic And Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Oct. 31, 2024	Oct. 31, 2023
Numerator:
Net income	$ 197	$ 241
Shares used in basic per share amounts:
Weighted-average common shares outstanding (in shares)	280	280
Shares used in diluted per share amounts:
Weighted-average common shares outstanding (in shares)	280	280
Dilutive common equivalent shares from stock options and restricted awards (in shares)	3	3
Dilutive weighted-average common shares outstanding (in shares)	283	283
Basic and diluted net income per share:
Basic net income per share (in dollars per share)	$ 0.70	$ 0.86
Diluted net income per share (in dollars per share)	$ 0.70	$ 0.85
Shares excluded from diluted net income per share:
Weighted-average stock options and restricted stock units that have been excluded from dilutive common equivalent shares outstanding due to their anti-dilutive effect (in shares)	0	1