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CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($)
$ in Millions
 3 Months Ended
Jan. 31, 2019
Jan. 31, 2018
Net income (loss) $ 504 $ (320)
Other comprehensive income (loss):    
Unrealized loss on derivative instruments, net of tax benefit of $(2)and $(3) (4) (7)
Amounts reclassified into earnings related to derivative instruments, net of tax benefit of $(1) and $0 (4) 0
Foreign currency translation, net of tax benefit of $(9) and $0 38 79
Net defined benefit pension cost and post retirement plan costs:    
Change in actuarial net loss, net of tax expense of $4 and $2 6 6
Change in net prior service benefit, net of tax benefit of $0 and $(1) (2) (1)
Other comprehensive income 34 77
Total comprehensive income (loss) $ 538 $ (243)