v3.26.1
GOODWILL AND OTHER INTANGIBLE ASSETS (Disclosures and Components of Purchased Other Intangibles) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2026
Apr. 30, 2025
Oct. 31, 2025
Intangible Asset, Finite-Lived [Line Items]          
Amortizable intangible assets, Gross carrying amount $ 2,914   $ 2,914   $ 2,901
Accumulated Amortization and impairments 1,745   1,745   1,614
Amortizable intangible assets, Net book value 1,169   1,169   1,287
Intangible Asset, Excluding Goodwill, before Accumulated Amortization 2,919   2,919   2,918
Intangible Asset, Finite-Lived, Amortization Expense 66 $ 32 131 $ 64  
In Process Research and Development          
Intangible Asset, Finite-Lived [Line Items]          
Intangible Asset, Excluding Goodwill, Indefinite-Lived 5   5   17
Developed technology          
Intangible Asset, Finite-Lived [Line Items]          
Amortizable intangible assets, Gross carrying amount 2,002   2,002   1,987
Accumulated Amortization and impairments 1,186   1,186   1,099
Amortizable intangible assets, Net book value 816   816   888
Backlog          
Intangible Asset, Finite-Lived [Line Items]          
Amortizable intangible assets, Gross carrying amount 48   48   51
Accumulated Amortization and impairments 40   40   34
Amortizable intangible assets, Net book value 8   8   17
Trademark/Tradename          
Intangible Asset, Finite-Lived [Line Items]          
Amortizable intangible assets, Gross carrying amount 43   43   43
Accumulated Amortization and impairments 41   41   39
Amortizable intangible assets, Net book value 2   2   4
Customer relationships          
Intangible Asset, Finite-Lived [Line Items]          
Amortizable intangible assets, Gross carrying amount 821   821   820
Accumulated Amortization and impairments 478   478   442
Amortizable intangible assets, Net book value $ 343   343   $ 378
In Process Research and Development          
Intangible Asset, Finite-Lived [Line Items]          
Intangible Asset, Finite-Lived, Period Increase (Decrease)     $ 8