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
	Jan. 31, 2018	Jan. 31, 2017
Derivative Instruments, Gain (Loss)
Gain (Loss) Recognized in Earnings on Derivatives	$ (15)	$ 1
Interest and other, net | Foreign currency contracts
Derivative Instruments, Gain (Loss)
Gain (Loss) Recognized in Earnings on Derivatives	(17)	(2)
Interest and other, net | Other derivatives
Derivative Instruments, Gain (Loss)
Gain (Loss) Recognized in Earnings on Derivatives	$ 2	$ 3