CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017
Net income	$ 236	$ 175	$ 121	$ 507
Other comprehensive income (loss):
Unrealized gain (loss) on derivative instruments, net of tax expense (benefit) of $2, $(1) $0 and $0	6	(3)	3	(3)
Amounts reclassified into earnings related to derivative instruments, net of tax expense (benefit) of $0 $0, $2 and $(1)	1	(1)	4	(2)
Foreign currency translation, net of tax expense of $0, $6, $0 and $6	(39)	57	(13)	61
Net defined benefit pension cost and post retirement plan costs:
Change in actuarial net loss, net of tax expense of $3, $4, $8 and $15	8	8	21	34
Change in net prior service benefit, net of tax benefit of $(1), $(1), $(2) and $(3)	(1)	(1)	(4)	(4)
Other comprehensive income (loss)	(25)	60	11	86
Total comprehensive income	$ 211	$ 235	$ 132	$ 593