Financial Instruments - Pre-tax Effect (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2017	Apr. 30, 2016
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Net revenue	$ 7,445	$ 8,509	$ 15,001	$ 17,041
Cost of products	(7,263)	(8,058)	(14,363)	(16,118)
Interest and other, net	(85)	(52)	(163)	(126)
Earnings from continuing operations before taxes	101	330	439	743
Net loss from discontinued operations	(125)	(2)	(113)	(97)
Net (loss) earnings	(612)	320	(345)	587
Pre-tax effect of derivative instruments not designated as hedging instruments on the Condensed Consolidated and Combined Statements of Earnings
Gains (Losses) Recognized in Earnings on Derivatives	(198)	(326)	(242)	(323)
Interest rate contracts
Pre-tax effect of derivative instruments and related hedged items in a fair value hedging relationship
Gains (Losses) Recognized in Earnings on Derivative	37	34	(225)	167
Gains (Losses) Recognized in Earnings on Related Hedged Item	(37)	(34)	225	(167)
Foreign exchange contracts | Interest and other, net
Pre-tax effect of derivative instruments not designated as hedging instruments on the Condensed Consolidated and Combined Statements of Earnings
Gains (Losses) Recognized in Earnings on Derivatives	(199)	(331)	(246)	(323)
Other derivatives | Interest and other, net
Pre-tax effect of derivative instruments not designated as hedging instruments on the Condensed Consolidated and Combined Statements of Earnings
Gains (Losses) Recognized in Earnings on Derivatives	1	5	4	0
Cash flow hedges:
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Loss expected to be reclassified from Accumulated OCI into earnings in next 12 months			47
Cash flow hedges: | Foreign exchange contracts
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Gains (Losses) Recognized in Other Comprehensive Income (OCI) on Derivatives (Effective Portion)	4	(206)	140	(64)
Cash flow hedges: | Foreign exchange contracts | Change in net unrealized losses on cash flow hedges: | Reclassifications of gains (losses) into earnings
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Net revenue	2	(13)	58	28
Cost of products	0		0
Other operating expenses	0	0	0	0
Interest and other, net	66	66	149	125
Earnings from continuing operations before taxes	68	53	207	153
Net loss from discontinued operations	15	17	39	38
Net (loss) earnings	83	70	246	191
Cash flow hedges: | Foreign exchange contracts | Net revenue
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Gains (Losses) Recognized in Other Comprehensive Income (OCI) on Derivatives (Effective Portion)	(56)	(192)	(1)	(153)
Cash flow hedges: | Foreign exchange contracts | Cost of products
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Gains (Losses) Recognized in Other Comprehensive Income (OCI) on Derivatives (Effective Portion)	(1)		(1)
Cash flow hedges: | Foreign exchange contracts | Other operating expenses
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Gains (Losses) Recognized in Other Comprehensive Income (OCI) on Derivatives (Effective Portion)	1	3	1	2
Cash flow hedges: | Foreign exchange contracts | Interest and other, net
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Gains (Losses) Recognized in Other Comprehensive Income (OCI) on Derivatives (Effective Portion)	66	61	142	119
Cash flow hedges: | Foreign exchange contracts | Net earnings (loss) from continuing operations
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Gains (Losses) Recognized in Other Comprehensive Income (OCI) on Derivatives (Effective Portion)	10	(128)	141	(32)
Cash flow hedges: | Foreign exchange contracts | Net loss from discontinued operations
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Gains (Losses) Recognized in Other Comprehensive Income (OCI) on Derivatives (Effective Portion)	(6)	(78)	(1)	(32)
Net investment hedges: | Foreign exchange contracts
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Gains (Losses) Recognized in Other Comprehensive Income (OCI) on Derivatives (Effective Portion)	(8)	(137)	(10)	(80)
Net investment hedges: | Foreign exchange contracts | Change in net unrealized losses on cash flow hedges: | Reclassifications of gains (losses) into earnings
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Interest and other, net	0	0	0	0
Earnings from continuing operations before taxes	0	0	0	0
Net loss from discontinued operations	0	0	0	0
Net (loss) earnings	0	0	0	0
Net investment hedges: | Foreign exchange contracts | Interest and other, net
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Gains (Losses) Recognized in Other Comprehensive Income (OCI) on Derivatives (Effective Portion)	(8)	(137)	(10)	(80)
Net investment hedges: | Foreign exchange contracts | Net earnings (loss) from continuing operations
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Gains (Losses) Recognized in Other Comprehensive Income (OCI) on Derivatives (Effective Portion)	(8)	(137)	(10)	(80)
Net investment hedges: | Foreign exchange contracts | Net loss from discontinued operations
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Gains (Losses) Recognized in Other Comprehensive Income (OCI) on Derivatives (Effective Portion)	$ 0	$ 0	$ 0	$ 0