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CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Unaudited) - USD ($)
$ in Millions
 3 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Other comprehensive income (loss):    
Net income $ 163 $ 114
Unrealized gain (loss) on derivative instruments, net of tax benefit (expense) of $(1) and zero 1 (2)
Amounts reclassified into earnings related to derivative instruments, net of tax benefit (expense) of zero 1 1
Foreign currency translation, net of tax benefit (expense) of zero 0 30
Net defined benefit pension cost and post retirement plan costs:    
Change in net actuarial loss, net of tax expense of zero and $3 17 13
Change in net prior service credit, net of tax benefit of $1 and $1 (2) (3)
Other comprehensive income 17 39
Total comprehensive income $ 180 $ 153