XML 12 R1.htm IDEA: XBRL DOCUMENT v3.19.1
Document and Entity Information - shares
6 Months Ended
Apr. 30, 2019
May 29, 2019
Document and Entity Information [Abstract]    
Entity Registrant Name KEYSIGHT TECHNOLOGIES, INC.  
Entity Central Index Key 0001601046  
Current Fiscal Year End Date --10-31  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   188,170,970
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Apr. 30, 2019  
Trading Symbol KEYS  
Entity Emerging Growth Company false  
Entity Small Business false