SUPPLEMENTAL CONSOLIDATING DATA (Statement of Cash Flows) (Details 3) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Cash Flows from Operating Activities
Net income	$ 511.7	$ 850.9	$ 1,589.4	$ 2,513.5
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Provision for credit losses			35.4	29.6
Provision for depreciation and amortization			1,029.2	957.4
Impairment charges				62.3
Undistributed earnings of unconsolidated subsidiaries and affiliates			(5.2)	(2.3)
Provision (credit) for deferred income taxes			73.0	(249.1)
Changes in assets and liabilities:
Trade receivables			(598.0)	(1,679.3)
Insurance receivables			333.4	35.5
Inventories			(941.5)	(1,102.9)
Accounts payable and accrued expenses			(594.6)	(313.6)
Accrued income taxes payable/receivable			(58.1)	207.3
Retirement benefits			293.4	215.0
Other			(12.3)	(51.9)
Net cash provided by operating activities			1,191.8	682.1
Cash Flows from Investing Activities
Proceeds from maturities and sales of marketable securities			833.0	718.7
Proceeds from sales of equipment on operating leases			773.7	803.3
Proceeds from sales of businesses, net of cash sold			149.2	339.8
Purchases of marketable securities			(100.8)	(585.5)
Purchases of property and equipment			(461.4)	(640.9)
Cost of equipment on operating leases acquired			(1,355.7)	(1,049.5)
Other			(23.4)	(75.6)
Net cash provided by (used for) investing activities			169.6	(1,567.3)
Cash Flows from Financing Activities
Increase (decrease) in total short-term borrowings			1,805.2	(76.7)
Proceeds from long-term borrowings			3,639.8	6,672.2
Payments of long-term borrowings			(3,980.1)	(4,079.8)
Proceeds from issuance of common stock			170.4	138.8
Repurchases of common stock			(1,833.9)	(1,631.1)
Dividends paid			(617.9)	(568.6)
Excess tax benefits from share-based compensation			18.5	28.5
Other			(56.9)	(50.4)
Net cash provided by (used for) financing activities			(854.9)	432.9
Effect of Exchange Rate Changes on Cash and Cash Equivalents			(162.7)	(17.0)
Net Increase (Decrease) in Cash and Cash Equivalents			343.8	(469.3)
Cash and Cash Equivalents at Beginning of Period			3,787.0	3,504.0
Cash and Cash Equivalents at End of Period	4,130.8	3,034.7	4,130.8	3,034.7
Equipment Operations
Cash Flows from Operating Activities
Net income	511.7	850.9	1,589.4	2,513.5
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Provision for credit losses			2.1	3.2
Provision for depreciation and amortization			605.6	592.2
Impairment charges				62.3
Undistributed earnings of unconsolidated subsidiaries and affiliates			(4.9)	(303.2)
Provision (credit) for deferred income taxes			(39.6)	(216.6)
Changes in assets and liabilities:
Trade receivables			37.2	151.8
Inventories			(473.2)	(604.4)
Accounts payable and accrued expenses			(113.4)	13.3
Accrued income taxes payable/receivable			(82.9)	181.5
Retirement benefits			282.1	203.2
Other			145.8	168.4
Net cash provided by operating activities			1,948.2	2,765.2
Cash Flows from Investing Activities
Proceeds from maturities and sales of marketable securities			700.1	700.1
Proceeds from sales of businesses, net of cash sold				339.8
Purchases of marketable securities			(49.1)	(504.1)
Purchases of property and equipment			(458.1)	(639.5)
Other			2.2	(103.0)
Net cash provided by (used for) investing activities			195.1	(206.7)
Cash Flows from Financing Activities
Increase (decrease) in total short-term borrowings			318.5	537.2
Change in intercompany receivables/payables			447.2	(1,442.7)
Proceeds from long-term borrowings			6.7	7.0
Payments of long-term borrowings			(147.1)	(757.2)
Proceeds from issuance of common stock			170.4	138.8
Repurchases of common stock			(1,833.9)	(1,631.1)
Dividends paid			(617.9)	(568.6)
Excess tax benefits from share-based compensation			18.5	28.5
Other			(38.1)	(21.4)
Net cash provided by (used for) financing activities			(1,675.7)	(3,709.5)
Effect of Exchange Rate Changes on Cash and Cash Equivalents			(129.7)	(17.3)
Net Increase (Decrease) in Cash and Cash Equivalents			337.9	(1,168.3)
Cash and Cash Equivalents at Beginning of Period			2,569.2	3,023.3
Cash and Cash Equivalents at End of Period	2,907.1	1,855.0	2,907.1	1,855.0
Financial Services
Cash Flows from Operating Activities
Net income	153.4	162.3	480.0	452.2
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Provision for credit losses			33.3	26.4
Provision for depreciation and amortization			503.2	417.8
Undistributed earnings of unconsolidated subsidiaries and affiliates			(0.8)	(1.4)
Provision (credit) for deferred income taxes			112.6	(32.5)
Changes in assets and liabilities:
Insurance receivables			333.4	35.5
Accounts payable and accrued expenses			(322.3)	4.1
Accrued income taxes payable/receivable			24.8	25.8
Retirement benefits			11.3	11.8
Other			(25.5)	(37.0)
Net cash provided by operating activities			1,150.0	902.7
Cash Flows from Investing Activities
Collections of receivables (excluding trade and wholesale)			12,516.5	12,618.3
Proceeds from maturities and sales of marketable securities			132.9	18.6
Proceeds from sales of equipment on operating leases			773.7	803.3
Proceeds from sales of businesses, net of cash sold			149.2
Cost of receivables acquired (excluding trade and wholesale)			(12,063.2)	(13,802.5)
Purchases of marketable securities			(51.7)	(81.4)
Purchases of property and equipment			(3.3)	(1.4)
Cost of equipment on operating leases acquired			(1,988.6)	(1,723.2)
Increase in trade and wholesale receivables			(924.0)	(2,055.6)
Other			(22.1)	(26.7)
Net cash provided by (used for) investing activities			(1,480.6)	(4,250.6)
Cash Flows from Financing Activities
Increase (decrease) in total short-term borrowings			1,486.7	(613.9)
Change in intercompany receivables/payables			(447.2)	1,442.7
Proceeds from long-term borrowings			3,633.1	6,665.2
Payments of long-term borrowings			(3,833.0)	(3,322.6)
Dividends paid			(479.6)	(150.0)
Other			9.5	25.2
Net cash provided by (used for) financing activities			369.5	4,046.6
Effect of Exchange Rate Changes on Cash and Cash Equivalents			(33.0)	0.3
Net Increase (Decrease) in Cash and Cash Equivalents			5.9	699.0
Cash and Cash Equivalents at Beginning of Period			1,217.8	480.8
Cash and Cash Equivalents at End of Period	$ 1,223.7	$ 1,179.8	$ 1,223.7	$ 1,179.8