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, 2025	Oct. 31, 2024
Numerator:
Net income	$ 446	$ 197
Shares used in basic per share calculations:
Weighted-average common shares outstanding (in shares)	279	280
Shares used in diluted per share calculations:
Weighted-average common shares outstanding (in shares)	279	280
Dilutive potential common equivalent shares from share-based awards (in shares)	2	3
Dilutive weighted-average common shares outstanding (in shares)	281	283
Basic and diluted net income per share:
Basic net income per share (in dollars per share)	$ 1.60	$ 0.70
Diluted net income per share (in dollars per share)	$ 1.59	$ 0.70
Shares excluded from diluted net income per share:
Weighted-average share-based awards that have been excluded from dilutive common equivalent shares outstanding due to their anti-dilutive effect (in shares)	3	0