Financial Instruments - Pre-tax Effect (Details) - USD ($) $ in Millions	3 Months Ended
Jan. 31, 2017	Jan. 31, 2016
Pre-tax effect of derivative instruments in cash flow and net investment hedging relationships
Net revenue	$ 11,407	$ 12,724
Cost of products	(10,944)	(12,340)
Interest and other, net	(78)	(80)
Earnings before taxes	345	319
Portion of the hedging instruments gain or loss excluded from the assessment of effectiveness for fair value, cash flow or net investment hedges	0	0
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	(44)	3
Change in net unrealized (losses) gains 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	79	61
Cost of products	1	1
Other operating expenses		0
Interest and other, net	83	59
Earnings before taxes	163	121
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	(262)	133
Gains (Losses) Recognized in Earnings on Related Hedged Item	262	(133)
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	(47)	8
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	3	(5)
Cash flow hedges:
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)	136	142
Gain expected to be reclassified from Accumulated OCI into earnings in next 12 months	16
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)	60	91
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)	0	(6)
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)
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)	76	58
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)	$ (2)	$ 57

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
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Amount of the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

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Total costs of sales and operating expenses for the period.

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The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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The net gain (loss) relating to components of the gain (loss) on the cash flow hedging instrument excluded from the assessment of cash flow hedge effectiveness. Recognized in earnings.

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Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period.

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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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