Stockholders' Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2011
Stockholders' Equity
Common Stock, Dividends, Per Share, Declared	$ 0.67	$ 0.61	$ 0.55
Repurchases of common stock (in shares)	75.0	92.0	77.0
Payment in connection with repurchases of shares	$ 2,883	$ 2,728	$ 1,532
Share repurchases that will be settled in subsequent period	0.5
Share repurchase authorization remaining	$ 2,000
Share repurchase authorization increase after balance sheet date				$ 10,000
Changes and reclassifications related to Other Comprehensive (Loss) Income, net of taxes
Tax (provision) benefit on unrealized gains (losses) arising during the period	14	(66)	(239)
Net change	(6,302)	(5,881)
Net revenue	103,355	111,454	112,298
Cost of products	97,884	104,269	105,167
Interest and other, net	(739)	(628)	(621)
Earnings before taxes	4,732	6,557	6,510
Other comprehensive (loss) income, net of taxes	(421)	(2,103)	1,781
Reclassifications of losses (gains) into earnings
Changes and reclassifications related to Other Comprehensive (Loss) Income, net of taxes
Other comprehensive (loss) income, net of taxes	(421)	(2,103)	1,781
Change in unrealized (losses) gains on available-for-sale securities
Changes and reclassifications related to Other Comprehensive (Loss) Income, net of taxes
Tax benefit (provision) on other comprehensive (loss) income	2	(1)	(14)
Tax (provision) benefit on unrealized gains (losses) arising during the period	2	(1)	(14)
Other comprehensive (losses) income before reclassifications	(15)	6	38
(Gains) losses reclassified into earnings		(1)	(49)
Net change in unrealized (losses) gains on available-for-sale securities	(15)	5	(11)
Change in unrealized (losses) gains on cash flow hedges
Changes and reclassifications related to Other Comprehensive (Loss) Income, net of taxes
Tax benefit (provision) on other comprehensive (loss) income	(294)	(174)	97
Tax provision (benefit) on (gains) losses	368	(18)	(49)
Tax (provision) benefit on unrealized gains (losses) arising during the period	74	(192)	48
Other comprehensive (losses) income before reclassifications	797	163	(146)
(Gains) losses reclassified into earnings	(944)	133	57
Net change in unrealized (losses) gains on derivatives qualifying as hedges	(147)	296	(89)
Change in unrealized (losses) gains on cash flow hedges \| Reclassifications of losses (gains) into earnings
Changes and reclassifications related to Other Comprehensive (Loss) Income, net of taxes
Net revenue	(1,271)	21	(48)
Cost of products	150	71	165
Other operating expenses	7	9	(1)
Interest and other, net	(198)	50	(10)
Earnings before taxes	(1,312)	151	106
Change in unrealized components of defined benefit plans
Changes and reclassifications related to Other Comprehensive (Loss) Income, net of taxes
Tax (provision) benefit on unrealized gains (losses) arising during the period	11	154	(298)
Net change in unrealized gains (losses) on benefit plans	21	(2,292)	2,006
(Losses) gains arising during the period
Changes and reclassifications related to Other Comprehensive (Loss) Income, net of taxes
Tax (provision) benefit on unrealized gains (losses) arising during the period	5	181	(258)
Losses (gains) adjustments reclassified into earnings	(543)	(2,575)	1,695
Amortization of actuarial loss and prior service benefit
Changes and reclassifications related to Other Comprehensive (Loss) Income, net of taxes
Tax provision (benefit) on (gains) losses	(18)	(18)	(35)
Losses (gains) adjustments reclassified into earnings	425	241	291
Curtailments, settlements and other
Changes and reclassifications related to Other Comprehensive (Loss) Income, net of taxes
Tax (provision) benefit on unrealized gains (losses) arising during the period	(24)	9	5
Net change in unrealized gains (losses) on other adjustments	139	42	20
Change in cumulative translation adjustment
Changes and reclassifications related to Other Comprehensive (Loss) Income, net of taxes
Tax (provision) benefit on unrealized gains (losses) arising during the period	(73)	(27)	25
Net change in unrealized gains (losses) in translation adjustment	$ (280)	$ (112)	$ (125)

Increase in the total amount authorized for repurchase of shares after the balance sheet date.

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Number of shares for which repurchase transactions have been executed during the period, but which will settle in the subsequent period.

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Total costs of sales and operating expenses for the period.

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Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) related to pension and other postretirement benefit plans.

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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The cash outflow to reacquire common stock during the period.

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