SEGMENT INFORMATION - Reconciliation of Reportable Results (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Reconciliation of Operating Profit (Loss) from Segments to Consolidated
Total reportable segments’ income from operations	$ 212	$ 199	$ 612	$ 544
Acceleration of share-based compensation related to workforce reduction	0	0	0	(2)
Asset impairments	(4)	0	(4)	0
Transformational initiatives	(11)	(12)	(32)	(41)
Amortization of intangibles	(37)	(38)	(120)	(119)
Acquisition and integration costs	(11)	(4)	(28)	(6)
Business exit and divestiture costs (primarily our NMR business)	(1)	0	(7)	(11)
Pension curtailment gain	0	0	16	0
Other	(2)	(1)	(5)	1
Interest income	3	2	8	6
Interest expense	(17)	(17)	(53)	(50)
Other income (expense), net	2	(1)	6	15
Income from continuing operations before taxes	$ 134	$ 128	$ 393	$ 337