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CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Oct. 31, 2018
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]      
Gain (loss) on derivative instruments, tax expense (benefit) $ (3) $ (2) $ 1
Amounts reclassified into earnings related to derivative instruments, tax expense (benefit) 0 (2) 1
Foreign currency translation, tax expense (benefit) 1 (10) 7
Change in actuarial net loss, tax expense (benefit) 0 (25) (3)
Change in net prior service benefit, tax (benefit) $ (1) $ (2) $ (2)