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CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($)
$ in Millions
 12 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Oct. 31, 2018
Statement of Comprehensive Income [Abstract]      
Net income $ 719 $ 1,071 $ 316
Other comprehensive income (loss):      
Gain (loss) on derivative instruments, net of tax expense (benefit) of $(3), $(2) and $1 (9) (4) 6
Amounts reclassified into earnings related to derivative instruments, net of tax expense (benefit) of $0, $(2). and $1 2 (6) 3
Foreign currency translation, net of tax expense (benefit) of $1, $(10) and $7 10 10 (58)
Net defined benefit pension cost and post retirement plan costs:      
Change in actuarial net loss, net of tax expense (benefit) of $0, $(25) and $(3) (5) (93) (7)
Change in net prior service benefit, net of tax benefit of $(1), $(2) and $(2) (6) (6) (6)
Other comprehensive loss (8) (99) (62)
Total comprehensive income $ 711 $ 972 $ 254