Stockholder's Equity - Stock Repurchase (Details) - Stock Repurchase Program 2011 - shares	12 Months Ended			166 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2025	Sep. 22, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional common stock authorized for repurchase (in shares)					320,000,000
Common stock authorized for repurchase (in shares)					784,000,000
Number of shares repurchased (in shares)	0	0	0	458,196,792
Number of shares available for repurchase (in shares)	325,803,208			325,803,208