ACQUISITION OF IXIA Proforma financial information (Details) - USD ($) $ / shares in Units, $ in Millions |
6 Months Ended | |
|---|---|---|
Apr. 30, 2017 |
Apr. 30, 2016 |
|
| Business Combinations [Abstract] | ||
| Business Acquisition, Pro Forma Information, Description | The unaudited pro forma financial information for the three and six months ended April 30, 2016 combines the historical results of Keysight and Ixia for the three and six months ended April 30, 2016, assuming that the companies were combined as of November 1, 2015 and include business combination accounting effects from the acquisition including amortization and depreciation charges from acquired intangible assets, property plant and equipment, interest expense on the financing transactions used to fund the acquisition and acquisition-related transaction costs and tax-related effects. The pro forma information as presented above is for informational purposes only and is not indicative of the results of operations that would have been achieved if the acquisition had taken place at the beginning of fiscal 2016. | |
| Business Acquisition, Pro Forma Revenue | $ 1,698 | $ 1,697 |
| Business Acquisition, Pro Forma Net Income (Loss) | $ 90 | $ 95 |
| Business Acquisition, Pro Forma Earnings Per Share, Basic | $ 0.49 | $ 0.52 |
| Business Acquisition, Pro Forma Earnings Per Share, Diluted | $ 0.48 | $ 0.51 |