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STOCKHOLDERS' EQUITY (Components of Accumulated Other Comprehensive Loss) (Details) - USD ($)
$ in Millions
Oct. 31, 2020
Oct. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Foreign currency translation, net of tax (expense) of $(63) and $(63) $ (10) $ (43)
Unrealized losses on defined benefit plans, net of tax benefit of $139 and $113 (605) (532)
Unrealized gains (losses) on derivative instruments, net of tax (expense) of $(5) and zero 16 (3)
Total accumulated other comprehensive loss (599) (578)
Accumulated other Comprehensive Income (Loss), Tax [Abstract]    
Unrealized gain on equity securities, tax 0 0
Foreign currency translation, tax (63) 63
Unrealized losses on defined benefit plans, tax 139 113
Unrealized gains (losses) on derivative instruments, tax $ (5) $ 0