CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Net income	$ 199	$ 191	$ 497	$ 877
Other comprehensive income (loss):
Unrealized gain (loss) on derivative instruments, net of tax expense (benefit) of $(2), $1, $(2) and $0	(7)	3	(4)	2
Amounts reclassified into earnings related to derivative instruments, net of tax expense (benefit) of $0, $(1), $0 and $(2)	(1)	0	(2)	(4)
Foreign currency translation, net of tax expense (benefit) of $0, $(1), $0 and $(10)	60	(12)	20	1
Net defined benefit pension cost and post retirement plan costs:
Change in actuarial net loss, net of tax expense of $4, $5, $9 and $11	10	5	28	17
Change in net prior service benefit, net of tax expense (benefit) of $(1), $0, $(1) and $(1)	0	(2)	(4)	(5)
Other comprehensive income (loss)	62	(6)	38	11
Total comprehensive income	$ 261	$ 185	$ 535	$ 888