Financial Instruments - Schedule of Pre-Tax Effect of Derivative Instruments not Designated as Hedging Instruments on the Consolidated Condensed Statements of Earnings (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017
Derivative Instruments, Gain (Loss)
Gain (Loss) Recognized in Earnings on Derivatives	$ 6	$ 17	$ (3)	$ (28)
Interest and other, net | Foreign currency contracts
Derivative Instruments, Gain (Loss)
Gain (Loss) Recognized in Earnings on Derivatives	5	16	(4)	(33)
Interest and other, net | Other derivatives
Derivative Instruments, Gain (Loss)
Gain (Loss) Recognized in Earnings on Derivatives	$ 1	$ 1	$ 1	$ 5