SUPPLEMENTAL CONSOLIDATING DATA (Balance Sheet) (Details 2) - USD ($) $ / shares in Units, $ in Millions	Jul. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Oct. 31, 2013
Assets
Cash and cash equivalents	$ 4,130.8	$ 3,787.0	$ 3,034.7	$ 3,504.0
Marketable securities	421.1	1,215.1	1,489.4
Receivables from unconsolidated subsidiaries and affiliates	43.2	30.2	33.3
Trade accounts and notes receivable - net	4,220.4	3,277.6	4,551.8
Financing receivables - net	24,973.4	27,422.2	27,079.9
Financing receivables securitized - net	4,737.8	4,602.3	4,264.2
Other receivables	823.1	1,500.3	1,193.1
Equipment on operating leases - net	4,426.0	4,015.5	3,580.0
Inventories	4,319.0	4,209.7	5,439.0
Property and equipment - net	5,126.4	5,577.8	5,385.5
Investments in unconsolidated subsidiaries and affiliates	310.6	303.2	310.2
Goodwill	715.9	791.2	829.8	845.0
Other intangible assets - net	57.8	68.8	69.4
Retirement benefits	335.0	262.0	611.7
Deferred income taxes	2,705.0	2,776.6	2,564.0
Other assets	1,586.7	1,496.9	1,312.5
Total Assets	58,932.2	61,336.4	61,748.5
Liabilities and Stockholders' Equity
Short-term borrowings	9,347.9	8,019.2	8,580.8
Short-term securitization borrowings	4,595.4	4,558.5	4,142.8
Payables to unconsolidated subsidiaries and affiliates	73.7	101.0	90.4
Accounts payable and accrued expenses	7,235.8	8,554.1	8,432.9
Deferred income taxes	150.9	160.9	160.1
Long-term borrowings	23,200.9	24,380.7	24,035.5
Retirement benefits and other liabilities	6,602.6	6,496.5	5,473.5
Total liabilities	$ 51,207.2	$ 52,270.9	$ 50,916.0
Commitments and contingencies (Note 14)
Common stock, $1 par value (issued shares at July 31, 2015 - 536,431,204)	$ 3,806.5	$ 3,675.4	$ 3,652.8
Common stock, par value (in dollars per share)	$ 1
Common stock, issued shares	536,431,204
Common stock in treasury	$ (14,562.5)	(12,834.2)	(11,742.7)
Retained earnings	22,986.5	22,004.4	21,564.6
Accumulated other comprehensive income (loss)	(4,507.4)	(3,783.0)	(2,644.7)
Total Deere & Company stockholders' equity	7,723.1	9,062.6	10,830.0
Noncontrolling interests	1.9	2.9	2.5
Total stockholders' equity	7,725.0	9,065.5	10,832.5	10,267.7
Total Liabilities and Stockholders' Equity	58,932.2	61,336.4	61,748.5
Equipment Operations
Assets
Cash and cash equivalents	2,907.1	2,569.2	1,855.0	3,023.3
Marketable securities	47.4	700.4	1,002.5
Receivables from unconsolidated subsidiaries and affiliates	2,941.5	3,663.9	4,865.7
Trade accounts and notes receivable - net	581.2	706.0	819.1
Financing receivables - net	4.7	18.5	7.1
Other receivables	779.2	848.0	802.6
Inventories	4,319.0	4,209.7	5,439.0
Property and equipment - net	5,072.4	5,522.5	5,330.3
Investments in unconsolidated subsidiaries and affiliates	4,923.8	5,106.5	5,005.9
Goodwill	715.9	791.2	829.8
Other intangible assets - net	57.8	64.8	65.4
Retirement benefits	335.5	263.5	579.3
Deferred income taxes	3,028.6	2,981.9	2,778.3
Other assets	859.4	850.6	680.5
Total Assets	26,573.5	28,296.7	30,060.5
Liabilities and Stockholders' Equity
Short-term borrowings	650.8	434.1	1,042.6
Payables to unconsolidated subsidiaries and affiliates	73.7	101.0	90.9
Accounts payable and accrued expenses	7,025.1	7,518.4	7,938.3
Deferred income taxes	79.9	87.1	84.4
Long-term borrowings	4,475.4	4,642.5	4,678.7
Retirement benefits and other liabilities	6,543.6	6,448.1	5,393.1
Total liabilities	$ 18,848.5	$ 19,231.2	$ 19,228.0
Commitments and contingencies (Note 14)
Common stock, $1 par value (issued shares at July 31, 2015 - 536,431,204)	$ 3,806.5	$ 3,675.4	$ 3,652.8
Common stock, par value (in dollars per share)	$ 1	$ 1	$ 1
Common stock, issued shares	536,431,204
Common stock in treasury	$ (14,562.5)	$ (12,834.2)	$ (11,742.7)
Retained earnings	22,986.5	22,004.4	21,564.6
Accumulated other comprehensive income (loss)	(4,507.4)	(3,783.0)	(2,644.7)
Total Deere & Company stockholders' equity	7,723.1	9,062.6	10,830.0
Noncontrolling interests	1.9	2.9	2.5
Total stockholders' equity	7,725.0	9,065.5	10,832.5
Total Liabilities and Stockholders' Equity	26,573.5	28,296.7	30,060.5
Financial Services
Assets
Cash and cash equivalents	1,223.7	1,217.8	1,179.8	$ 480.8
Marketable securities	373.7	514.7	486.9
Trade accounts and notes receivable - net	4,780.9	3,554.4	4,923.0
Financing receivables - net	24,968.7	27,403.7	27,072.8
Financing receivables securitized - net	4,737.8	4,602.3	4,264.2
Other receivables	76.2	659.0	421.1
Equipment on operating leases - net	4,426.0	4,015.5	3,580.0
Property and equipment - net	54.0	55.3	55.1
Investments in unconsolidated subsidiaries and affiliates	10.2	10.9	11.3
Other intangible assets - net		4.0	4.0
Retirement benefits	27.1	32.9	34.3
Deferred income taxes	61.6	64.9	70.8
Other assets	730.0	648.2	633.3
Total Assets	41,469.9	42,783.6	42,736.6
Liabilities and Stockholders' Equity
Short-term borrowings	8,697.1	7,585.1	7,538.2
Short-term securitization borrowings	4,595.4	4,558.5	4,142.8
Payables to unconsolidated subsidiaries and affiliates	2,898.3	3,633.7	4,831.9
Accounts payable and accrued expenses	1,387.3	2,027.0	1,716.9
Deferred income taxes	456.2	344.1	360.8
Long-term borrowings	18,725.5	19,738.2	19,356.7
Retirement benefits and other liabilities	86.7	82.8	82.3
Total liabilities	$ 36,846.5	$ 37,969.4	$ 38,029.6
Commitments and contingencies (Note 14)
Common stock, $1 par value (issued shares at July 31, 2015 - 536,431,204)	$ 2,051.3	$ 2,023.1	$ 2,010.5
Common stock, par value (in dollars per share)	$ 1	$ 1	$ 1
Common stock, issued shares	536,431,204
Retained earnings	$ 2,812.2	$ 2,811.8	$ 2,639.6
Accumulated other comprehensive income (loss)	(240.1)	(20.7)	56.9
Total Deere & Company stockholders' equity	4,623.4	4,814.2	4,707.0
Total stockholders' equity	4,623.4	4,814.2	4,707.0
Total Liabilities and Stockholders' Equity	$ 41,469.9	$ 42,783.6	$ 42,736.6