DISCONTINUED OPERATIONS - Statement of Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]
Net revenue		$ 0	$ 2,933
Cost and expenses		39	2,521
Operating income (loss)		(39)	412
Other income (expense), net		0	5
Income (loss) from discontinued operations before tax		(39)	417
Provision (benefit) for income taxes		(2)	100
Net Income (loss) from discontinued operations	$ 0	$ (37)	$ 317