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STOCKHOLDERS' EQUITY -Accumulated other comprehensive income (Details) - USD ($)
$ in Millions
Oct. 31, 2016
Oct. 31, 2015
Oct. 31, 2014
Foreign currency translation, net of $(2) and $(86) of tax expense for 2015 and 2014, respectively $ (197) $ (189) $ 156
Unrealized losses on defined benefit plans, net of tax benefit of $126 and $145 for 2015 and 2014, respectively (305) (204)  
Unrealized gains and (losses) on derivative instruments, net of tax expense of $(2) and $(7) for 2015 and 2014, respectively (1) 2 9
Total accumulated other comprehensive income (loss) (503) (391) $ (334)
Accumulated other Comprehensive Income (Loss), Tax [Abstract]      
Foreign currency translation, tax (5) (2)  
Unrealized losses on defined benefit plans, tax 176 126  
Unrealized gains (losses) on derivative instruments, tax $ 2 $ (2)