XML 67 R56.htm IDEA: XBRL DOCUMENT v3.20.2
INCOME TAXES INCOME TAXES (Tax incentives) (Details) - USD ($)
$ / shares in Units, $ in Millions
9 Months Ended
Jul. 31, 2020
Jul. 31, 2019
Income Tax Disclosure [Abstract]    
Tax incentives, Description Keysight benefits from tax incentives in several jurisdictions, most significantly in Singapore, that have granted us tax incentives that require renewal at various times in the future. The tax incentives provide lower rates of taxation on certain classes of income and require thresholds of investments and employment or specific types of income in those jurisdictions.  
Tax incentives, Termination Date The majority of our tax incentives are due for renewal between 2024 and 2025.  
Decrease in income tax provision due to tax incentives, Aggregate Dollar Amount $ 29 $ 32
Decrease in income tax provision due to tax incentives, Income Tax Benefits Per Share $ 0.15 $ 0.17