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CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($)
$ in Millions
 12 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2019
Statement of Comprehensive Income [Abstract]      
Net income $ 1,210 $ 719 $ 1,071
Gain (loss) on derivative instruments, net of tax expense (benefit) of $1, $(3) and $(2) 1 (9) (4)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax 13 2 (6)
Other comprehensive income (loss):      
Foreign currency translation, net of tax expense (benefit) of $2, $1 and $(10) 9 10 10
Net defined benefit pension cost and post retirement plan costs:      
Change in actuarial net loss, net of tax expense (benefit) of $74, $0 and $(25) 218 (5) (93)
Change in net prior service benefit, net of tax benefit of $(1), $(2) and $(2) (1) (6) (6)
Other Comprehensive Income (Loss) 240 (8) (99)
Total comprehensive income $ 1,450 $ 711 $ 972