SEGMENT INFORMATION - Reconciliation of Reportable Results (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Reconciliation of Operating Profit (Loss) from Segments to Consolidated
Total reportable segments’ income from operations	$ 223	$ 205
Transformational initiatives	(2)	(11)
Amortization of intangibles	(31)	(43)
Acquisition and integration costs	(14)	(5)
Business exit and divestiture costs (primarily our NMR business)	0	(5)
Pension settlement gain	32	1
Pension curtailment gain	0	15
Other	(2)	(2)
Interest income	4	2
Interest expense	(20)	(18)
Other income (expense), net	3	3
Income before taxes	$ 193	$ 142