SUPPLEMENTAL CONSOLIDATING DATA (Statement of Cash Flows) (Details 3) (USD $) In Millions, unless otherwise specified	6 Months Ended
Apr. 30, 2015	Apr. 30, 2014
Cash Flows from Operating Activities
Net income	$ 1,077.7us-gaap_ProfitLoss	$ 1,662.5us-gaap_ProfitLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	15.1us-gaap_ProvisionForDoubtfulAccounts	9.8us-gaap_ProvisionForDoubtfulAccounts
Provision for depreciation and amortization	682.9	630.3
Impairment charges		62.3us-gaap_AssetImpairmentCharges
Undistributed earnings of unconsolidated subsidiaries and affiliates	8.8	7.9
Provision (credit) for deferred income taxes	117.8us-gaap_DeferredIncomeTaxExpenseBenefit	(138.0)us-gaap_DeferredIncomeTaxExpenseBenefit
Changes in assets and liabilities:
Trade receivables	(860.8)us-gaap_IncreaseDecreaseInReceivables	(1,692.8)us-gaap_IncreaseDecreaseInReceivables
Insurance receivables	333.4	175.4
Inventories	(932.9)us-gaap_IncreaseDecreaseInInventories	(1,268.2)us-gaap_IncreaseDecreaseInInventories
Accounts payable and accrued expenses	(698.3)	(578.7)
Accrued income taxes payable/receivable	(76.3)	86.8
Retirement benefits	186.6de_IncreaseDecreaseInRetirementBenefits	138.0de_IncreaseDecreaseInRetirementBenefits
Other	(37.4)	28.1
Net cash provided by operating activities	(154.7)	(831.9)
Cash Flows from Investing Activities
Proceeds from maturities and sales of marketable securities	791.9	611.3
Proceeds from sales of equipment on operating leases	552.3	570.9
Proceeds from sales of businesses, net of cash sold	148.8	307.2
Purchases of marketable securities	(33.9)	(562.8)
Purchases of property and equipment	(324.3)	(426.2)
Cost of equipment on operating leases acquired	(830.2)	(618.1)
Other	(58.9)	(85.1)
Net cash provided by (used for) investing activities	1,152.0	(267.4)
Cash Flows from Financing Activities
Increase in total short-term borrowings	1,147.0	956.7
Proceeds from long-term borrowings	2,512.2	4,253.8
Payments of long-term borrowings	(2,453.3)us-gaap_RepaymentsOfLongTermDebt	(3,135.5)us-gaap_RepaymentsOfLongTermDebt
Proceeds from issuance of common stock	86.1	108.7
Repurchases of common stock	(1,173.9)	(1,093.4)
Dividends paid	(415.8)us-gaap_PaymentsOfDividendsCommonStock	(382.3)us-gaap_PaymentsOfDividendsCommonStock
Excess tax benefits from share-based compensation	11.7	24.2
Other	(39.1)	(32.9)
Net cash provided by (used for) financing activities	(325.1)	699.3
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(103.8)	(25.5)
Net Increase (Decrease) in Cash and Cash Equivalents	568.4	(425.5)
Cash and Cash Equivalents at Beginning of Period	3,787.0	3,504.0
Cash and Cash Equivalents at End of Period	4,355.4	3,078.5
Equipment Operations
Cash Flows from Operating Activities
Net income	1,077.7	1,662.5
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	0.3	1.9
Provision for depreciation and amortization	409.8	397.7
Impairment charges		62.3
Undistributed earnings of unconsolidated subsidiaries and affiliates	102.6	(190.8)
Provision (credit) for deferred income taxes	(3.0)	(117.8)
Changes in assets and liabilities:
Trade receivables	(33.2)	(3.9)
Inventories	(656.8)	(995.9)
Accounts payable and accrued expenses	(219.2)	(123.3)
Accrued income taxes payable/receivable	(82.1)	77.5
Retirement benefits	179.3	130.5
Other	75.8	126.3
Net cash provided by operating activities	851.2	1,027.0
Cash Flows from Investing Activities
Proceeds from maturities and sales of marketable securities	700.0	600.0
Proceeds from sales of businesses, net of cash sold		307.2
Purchases of marketable securities		(504.0)
Purchases of property and equipment	(323.2)	(425.2)
Other	(51.1)	(89.2)
Net cash provided by (used for) investing activities	325.7	(111.2)
Cash Flows from Financing Activities
Increase in total short-term borrowings	84.6	641.6
Change in intercompany receivables/payables	960.7	(612.0)
Proceeds from long-term borrowings	7.0	6.6
Payments of long-term borrowings	(39.8)	(737.3)
Proceeds from issuance of common stock	86.1	108.7
Repurchases of common stock	(1,173.9)	(1,093.4)
Dividends paid	(415.8)	(382.3)
Excess tax benefits from share-based compensation	11.7	24.2
Other	(24.1)	(11.0)
Net cash provided by (used for) financing activities	(503.5)	(2,054.9)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(79.7)	(9.3)
Net Increase (Decrease) in Cash and Cash Equivalents	593.7	(1,148.4)
Cash and Cash Equivalents at Beginning of Period	2,569.2	3,023.3
Cash and Cash Equivalents at End of Period	3,162.9	1,874.9
Financial Services
Cash Flows from Operating Activities
Net income	326.6	289.9
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	14.8	7.9
Provision for depreciation and amortization	328.4	271.2
Undistributed earnings of unconsolidated subsidiaries and affiliates	(0.8)	(1.3)
Provision (credit) for deferred income taxes	120.8	(20.3)
Changes in assets and liabilities:
Insurance receivables	333.4	175.4
Accounts payable and accrued expenses	(336.8)	(200.0)
Accrued income taxes payable/receivable	5.8	9.3
Retirement benefits	7.3	7.5
Other	(42.7)	3.8
Net cash provided by operating activities	756.8	543.4
Cash Flows from Investing Activities
Collections of receivables (excluding trade and wholesale)	8,998.2	9,006.6
Proceeds from maturities and sales of marketable securities	91.9	11.3
Proceeds from sales of equipment on operating leases	552.3	570.9
Proceeds from sales of businesses, net of cash sold	148.8
Cost of receivables acquired (excluding trade and wholesale)	(7,977.1)	(9,120.5)
Purchases of marketable securities	(33.9)	(58.8)
Purchases of property and equipment	(1.1)	(1.0)
Cost of equipment on operating leases acquired	(1,203.4)	(986.0)
Increase in trade and wholesale receivables	(1,084.7)	(1,895.1)
Other	(36.0)	(39.1)
Net cash provided by (used for) investing activities	(545.0)	(2,511.7)
Cash Flows from Financing Activities
Increase in total short-term borrowings	1,062.4	315.1
Change in intercompany receivables/payables	(960.7)	612.0
Proceeds from long-term borrowings	2,505.2	4,247.2
Payments of long-term borrowings	(2,413.5)	(2,398.1)
Dividends paid	(419.6)	(90.0)
Other	13.2	21.1
Net cash provided by (used for) financing activities	(213.0)	2,707.3
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(24.1)	(16.2)
Net Increase (Decrease) in Cash and Cash Equivalents	(25.3)	722.8
Cash and Cash Equivalents at Beginning of Period	1,217.8	480.8
Cash and Cash Equivalents at End of Period	$ 1,192.5	$ 1,203.6

The net change during the reporting period in trade and wholesale receivables.

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The change during the reporting period in insurance premium receivables due from other persons or entities and reinsurance receivables for the known and estimated amount recoverable from other insurance entities for claims paid or incurred by the ceding insurer including associated claims settlement expenses and policy benefits, net of any valuation allowance.

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The amount of increase or decrease in receivables and payables between parent and subsidiary.

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The amount of pension and other (such as medical, dental and life insurance) postretirement benefit costs recognized during the period for defined benefit plans (periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, actuarial gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments), net of the amount of cash or cash equivalents contributed during the reporting period by the entity to fund its pension plans and its non-pension postretirement benefit plans or make direct payments to plan participants.

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The cash outflow for the purchase of amounts due from customers, lessees, borrowers, or others under the terms of its agreements, excluding trade and wholesale receivables.

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The cash inflow associated with the collection of finance receivables, excluding trade and wholesale receivables.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

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The effect of exchange rate changes on cash balances in continuing operations held in foreign currencies.

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Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

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This element represents the undistributed income (or loss) of equity method investments, net of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations; such investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

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The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.

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The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes.

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The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.

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The increase (decrease) during the reporting period in other assets used in operating activities less other operating liabilities used in operating activities not separately disclosed in the statement of cash flows. May include changes in other current assets and liabilities, other noncurrent assets and liabilities, or a combination of other current and noncurrent assets and liabilities.

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The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities.

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The increase (decrease) in cash associated with the entity's continuing operating, investing, and financing activities. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label.

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Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The net cash outflow or inflow from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.

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The cash outflow to reacquire common stock during the period.

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Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

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The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity.

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