v3.26.1
Income Taxes (Schedule of Effective Tax Rate Reconciliation) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Jul. 31, 2026
Jul. 31, 2026
Jul. 31, 2025
Jul. 31, 2024
Amount        
Federal statutory tax   $ 113.0    
Tax Jurisdiction of Domicile [Extensible Enumeration]   United States    
State taxes   $ 41.0    
Effect of cross-border tax laws:        
Global intangible low-taxed income   (195.0)    
Subpart F income   22.0    
U.S. branch income (loss)   (117.0)    
Other   (23.0)    
Nontaxable or nondeductible items:        
Changes in unrecognized tax benefits   86.0    
Intercompany legal entity restructuring   (39.0)    
Total   $ 229.0 $ 462.0 $ (1,590.0)
Rate        
Federal statutory rate   21.00% 21.00% 21.00%
State taxes, net of federal tax benefit   7.70% 3.80% 3.10%
Non-U.S. operations     2.20% 9.50%
Effect of cross-border tax laws:        
Global intangible low-taxed income   (36.40%) 11.20% 175.80%
Subpart F income   4.10%    
U.S. branch income (loss)   (21.90%)    
Other   (4.10%)    
Tax credits:        
Change in valuation allowance     1.10% (341.90%)
Nontaxable or nondeductible items:        
Share-based compensation     (5.50%) (16.90%)
Changes in unrecognized tax benefits   16.00%    
Intercompany legal entity restructuring   (7.30%)    
Tax credits     (6.20%) (13.40%)
Non-deductible expenses     1.20% 1.50%
Other, net     0.10% 0.50%
Total   42.70% 28.90% (160.80%)
Other Restructuring        
Nontaxable or nondeductible items:        
Intercompany legal entity restructuring $ (45.0)      
Israel        
Amount        
Statutory rate differential   $ (10.0)    
Reduced statutory rate on qualifying income   93.0    
Other   22.0    
Intercompany legal entity restructuring   48.0    
Nontaxable or nondeductible items:        
Other   $ 22.0    
Rate        
Non-U.S. operations   (1.90%)    
Reduced statutory rate on qualifying income   17.30%    
Nondeductible expenses   4.10%    
Intercompany legal entity restructuring   9.00%    
Nontaxable or nondeductible items:        
Other   4.10%    
United Kingdom:        
Amount        
Statutory rate differential   $ 20.0    
Rate        
Non-U.S. operations   3.70%    
Other jurisdictions        
Amount        
Statutory rate differential   $ 54.0    
Rate        
Non-U.S. operations   10.20%    
United States        
Amount        
Other   $ 7.0    
Tax credits:        
Research and development tax credits   (58.0)    
Changes in valuation allowance   (2.0)    
Nontaxable or nondeductible items:        
Shared-based compensation   49.0    
Change in fair value of convertible senior notes and Capped Calls   118.0    
Other   $ 7.0    
Rate        
Nondeductible expenses   1.30%    
Tax credits:        
Research and development tax credits   (10.80%)    
Change in valuation allowance   (0.40%)    
Nontaxable or nondeductible items:        
Share-based compensation   9.10%    
Change in fair value of convertible senior notes and Capped Calls   22.00%    
Other   1.30%