SUPPLEMENTAL CONSOLIDATING DATA (Statement of Cash Flows) (Details 3) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Apr. 30, 2012	Apr. 30, 2011
Cash Flows from Operating Activities
Net income	$ 1,592.5	$ 1,421.1
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Provision (credit) for doubtful receivables	11.6	13.7
Provision for depreciation and amortization	498.7	448.7
Undistributed earnings of unconsolidated subsidiaries and affiliates	(4.8)	4.1
Provision (credit) for deferred income taxes	(124.1)	(310.3)
Changes in assets and liabilities:
Receivables	(1,554.1)	(1,228.4)
Inventories	(2,019.9)	(1,623.6)
Accounts payable and accrued expenses	(109.0)	284.3
Accrued income taxes payable/receivable	250.7	239.5
Retirement benefits	(35.3)	220.2
Other	(71.3)	(167.7)
Net cash used for operating activities	(1,527.3)	(665.3)
Cash Flows from Investing Activities
Proceeds from maturities and sales of marketable securities	15.8	18.8
Proceeds from sales of equipment on operating leases	418.8	383.4
Proceeds from sales of businesses, net of cash sold	20.2	893.5
Purchases of marketable securities	(570.3)	(34.0)
Purchases of property and equipment	(513.1)	(441.0)
Cost of equipment on operating leases acquired	(319.0)	(265.7)
Acquisitions of businesses, net of cash acquired		(46.6)
Other	(102.1)	(121.0)
Net cash provided by (used for) investing activities	(1,328.6)	10.5
Cash Flows from Financing Activities
Increase (decrease) in total short-term borrowings	1,297.6	803.2
Proceeds from long-term borrowings	4,056.8	1,440.6
Payments of long-term borrowings	(2,035.6)	(782.1)
Proceeds from issuance of common stock	28.9	160.7
Repurchases of common stock	(746.3)	(601.2)
Dividends paid	(333.0)	(275.0)
Excess tax benefits from share-based compensation	14.4	64.7
Other	(28.3)	(24.9)
Net cash provided by financing activities	2,254.5	786.0
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(26.0)	28.0
Net Increase (Decrease) in Cash and Cash Equivalents	(627.4)	159.2
Cash and Cash Equivalents at Beginning of Period	3,647.2	3,790.6
Cash and Cash Equivalents at End of Period	3,019.8	3,949.8
Equipment Operations
Cash Flows from Operating Activities
Net income	1,592.5	1,421.1
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Provision (credit) for doubtful receivables	5.1	1.4
Provision for depreciation and amortization	325.8	294.6
Undistributed earnings of unconsolidated subsidiaries and affiliates	(188.8)	(24.4)
Provision (credit) for deferred income taxes	(120.8)	(314.9)
Changes in assets and liabilities:
Receivables	(200.0)	(20.4)
Inventories	(1,806.1)	(1,458.1)
Accounts payable and accrued expenses	316.7	465.1
Accrued income taxes payable/receivable	234.3	250.4
Retirement benefits	(42.3)	213.7
Other	(34.7)	(153.2)
Net cash used for operating activities	81.7	675.3
Cash Flows from Investing Activities
Proceeds from sales of businesses, net of cash sold	20.2	893.5
Purchases of marketable securities	(501.7)
Purchases of property and equipment	(511.6)	(440.2)
Acquisitions of businesses, net of cash acquired		(46.6)
Other	(121.8)	(60.7)
Net cash provided by (used for) investing activities	(1,114.9)	346.0
Cash Flows from Financing Activities
Increase (decrease) in total short-term borrowings	1,097.9	291.8
Change in intercompany receivables/payables	(511.8)	(544.3)
Proceeds from long-term borrowings	44.9	31.6
Payments of long-term borrowings		(11.5)
Proceeds from issuance of common stock	28.9	160.7
Repurchases of common stock	(746.3)	(601.2)
Dividends paid	(333.0)	(275.0)
Excess tax benefits from share-based compensation	14.4	64.7
Other	(8.9)	(9.3)
Net cash provided by financing activities	(413.9)	(892.5)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(40.0)	37.9
Net Increase (Decrease) in Cash and Cash Equivalents	(1,487.1)	166.7
Cash and Cash Equivalents at Beginning of Period	3,187.5	3,348.3
Cash and Cash Equivalents at End of Period	1,700.4	3,515.0
Financial Services
Cash Flows from Operating Activities
Net income	228.3	223.3
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Provision (credit) for doubtful receivables	6.5	12.2
Provision for depreciation and amortization	212.5	191.6
Undistributed earnings of unconsolidated subsidiaries and affiliates	(0.8)	(0.6)
Provision (credit) for deferred income taxes	(3.3)	4.6
Changes in assets and liabilities:
Accounts payable and accrued expenses	(193.9)	(1.1)
Accrued income taxes payable/receivable	16.4	(10.9)
Retirement benefits	7.0	6.5
Other	36.5	39.3
Net cash used for operating activities	309.2	464.9
Cash Flows from Investing Activities
Collections of receivables (excluding trade and wholesale)	7,685.9	7,202.4
Proceeds from maturities and sales of marketable securities	15.8	18.8
Proceeds from sales of equipment on operating leases	418.8	383.4
Cost of receivables acquired (excluding trade and wholesale)	(7,975.5)	(7,575.1)
Purchases of marketable securities	(68.7)	(34.0)
Purchases of property and equipment	(1.5)	(0.9)
Cost of equipment on operating leases acquired	(607.9)	(489.4)
Increase in trade and wholesale receivables	(1,575.2)	(1,390.8)
Other	(23.3)	(86.3)
Net cash provided by (used for) investing activities	(2,131.6)	(1,971.9)
Cash Flows from Financing Activities
Increase (decrease) in total short-term borrowings	199.7	511.4
Change in intercompany receivables/payables	511.8	544.3
Proceeds from long-term borrowings	4,012.0	1,409.1
Payments of long-term borrowings	(2,035.6)	(770.6)
Dividends paid	(43.5)	(194.1)
Other	23.6	9.3
Net cash provided by financing activities	2,668.0	1,509.4
Effect of Exchange Rate Changes on Cash and Cash Equivalents	14.0	(9.9)
Net Increase (Decrease) in Cash and Cash Equivalents	859.6	(7.5)
Cash and Cash Equivalents at Beginning of Period	459.7	442.3
Cash and Cash Equivalents at End of Period	$ 1,319.3	$ 434.8