v3.26.1
ACQUISITIONS (Allocation of Purchase Price) (Details) - USD ($)
$ in Millions
6 Months Ended
Oct. 17, 2025
Oct. 15, 2025
Apr. 30, 2026
Asset Acquisition [Line Items]      
Goodwill, Acquired During Period     $ 30
Spirent      
Asset Acquisition [Line Items]      
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent   $ 127  
Business Combination, Recognized Asset Acquired, Inventory, Current   36 4
Business Combination, Recognized Asset Acquired, Receivable, Current   71  
Disposal Group, Including Discontinued Operation, Assets   433  
Business Combination, Recognized Asset Acquired, Other Asset, Current   25  
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment   24 4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating lease right-of-use assets   11  
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill   528  
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent   8  
Business Combination, Recognized Asset Acquired, Asset   1,263  
Business Combination, Recognized Liability Assumed, Accounts Payable, Current   (13)  
Employee compensation and benefits assumed   (44) $ (4)
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current   (44)  
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating lease liabilities   (4)  
Disposal Group, Including Discontinued Operation, Liabilities   (34)  
Business Combination, Recognized Liability Assumed, Other Liability, Current   (69)  
Business Combination, Recognized Liability Assumed, Deferred Revenue, noncurrent   (14)  
Business Combination, Recognized Liability Assumed, Lease Obligation   (9)  
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent   (181)  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)   851  
Goodwill, Acquired During Period   713  
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill   $ 1,564  
Synopsys Optical solutions group      
Asset Acquisition [Line Items]      
Business Combination, Recognized Asset Acquired, Receivable, Current $ 15    
Business Combination, Recognized Asset Acquired, Other Asset, Current 1    
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment 1    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating lease right-of-use assets 2    
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill 276    
Business Combination, Recognized Asset Acquired, Asset 295    
Business Combination, Recognized Liability Assumed, Deferred Revenue, Current (9)    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating lease liabilities (1)    
Business Combination, Recognized Liability Assumed, Deferred Revenue, noncurrent (1)    
Business Combination, Recognized Liability Assumed, Lease Obligation (1)    
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less) 283    
Goodwill, Acquired During Period 297    
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill $ 580