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, 2019	Jan. 31, 2018
Derivative Instruments, Gain (Loss)
(Loss) Gain Recognized in Earnings on Derivatives	$ (26)	$ (15)
Interest and other, net | Foreign currency contracts
Derivative Instruments, Gain (Loss)
(Loss) Gain Recognized in Earnings on Derivatives	(40)	(17)
Interest and other, net | Other derivatives
Derivative Instruments, Gain (Loss)
(Loss) Gain Recognized in Earnings on Derivatives	$ 14	$ 2