STOCKHOLDER'S EQUITY - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2016	Apr. 30, 2015	Apr. 30, 2016	Apr. 30, 2015
Beginning Balance	$ (438)		$ (391)
Other comprehensive income (loss), before reclassifications	140		99
Amounts reclassified out of accumulated other comprehensive income (loss)	4		(3)
Tax (expense) benefit	(5)		(4)
Other comprehensive income (loss)	139	$ (9)	92	$ (268)
Ending Balance	(299)		(299)
Foreign currency translation
Beginning balance	(245)		(189)
Other comprehensive income (loss) before reclassifications	153		96
Amounts reclassified out of accumulated other comprehensive income (loss)	0		0
Tax (expense) benefit	(8)	1	(7)	7
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	145	(6)	89	(271)
Ending balance	(100)		(100)
Prior service credits
Beginning balance	153		161
Other comprehensive income (loss) before reclassifications	0		6
Amounts reclassified out of accumulated other comprehensive income (loss)	(4)	(4)	(23)	(8)
Tax (expense) benefit	1		6
Other comprehensive income (loss)	(3)	(3)	(11)	(5)
Ending balance	150		150
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Actuarial Gain (Loss), before Tax
Beginning balance	(350)		(365)
Other comprehensive income (loss) before reclassifications	0		6
Amounts reclassified out of accumulated other comprehensive income (loss)	9	8	22	17
Tax (expense) benefit	(3)		(7)
Other comprehensive income (loss)	6	$ 6	21	$ 10
Ending balance	(344)		(344)
Unrealized gains (losses) on derivatives
Beginning balance	4		2
Other comprehensive income (loss) before reclassifications	(13)		(9)
Amounts reclassified out of accumulated other comprehensive income (loss)	(1)		(2)
Tax (expense) benefit	5		4
Other comprehensive income (loss)	(9)		(7)
Ending balance	$ (5)		$ (5)