SUPPLEMENTAL CONSOLIDATING DATA - Condensed Balance Sheet (Details) - USD ($) $ / shares in Units, $ in Millions	Jul. 31, 2016	Oct. 31, 2015	Jul. 31, 2015	Oct. 31, 2014
ASSETS
Cash and cash equivalents	$ 4,321.0	$ 4,162.2	$ 4,130.8	$ 3,787.0
Marketable securities	468.9	437.4	421.1
Receivables from unconsolidated subsidiaries and affiliates	18.7	33.3	43.2
Trade accounts and notes receivable - net	3,924.6	3,051.1	4,220.4
Financing receivables - net	22,594.8	24,809.0	24,973.4
Financing receivables securitized - net	5,947.4	4,834.6	4,737.8
Other receivables	811.9	991.2	823.1
Equipment on operating leases - net	5,602.7	4,970.4	4,426.0
Inventories	3,851.3	3,817.0	4,319.0
Property and equipment - net	5,047.3	5,181.5	5,126.4
Investments in unconsolidated subsidiaries and affiliates	246.2	303.5	310.6
Goodwill	823.6	726.0	715.9	791.0
Other intangible assets - net	109.5	63.6	57.8
Retirement benefits	323.1	215.6	335.0
Deferred income taxes	2,612.6	2,767.3	2,705.0
Other assets	1,902.8	1,583.9	1,586.7
Total Assets	58,606.4	57,947.6	58,932.2
LIABILITIES
Short-term borrowings	7,362.1	8,426.6	9,347.9
Short-term securitization borrowings	5,728.9	4,590.0	4,595.4
Payables to unconsolidated subsidiaries and affiliates	74.2	80.6	73.7
Accounts payable and accrued expenses	6,799.5	7,311.5	7,235.8
Deferred income taxes	172.3	160.8	150.9
Long-term borrowings	24,128.4	23,832.8	23,200.9
Retirement benefits and other liabilities	6,886.9	6,787.7	6,602.6
Total liabilities	51,152.3	51,190.0	51,207.2
Commitments and contingencies (Note 14)
Redeemable noncontrolling interest (Note 18)	14.4
STOCKHOLDERS' EQUITY
Common stock, $1 par value (issued shares at July 31, 2016 - 536,431,204)	$ 3,883.9	3,825.6	3,806.5
Common stock, par value (in dollars per share)	$ 1
Common stock, issued shares	536,431,204
Common stock in treasury	$ (15,688.3)	(15,497.6)	(14,562.5)
Retained earnings	23,815.0	23,144.8	22,986.5
Accumulated other comprehensive income (loss)	(4,582.2)	(4,729.4)	(4,507.4)
Total Deere & Company stockholders' equity	7,428.4	6,743.4	7,723.1
Noncontrolling interests	11.3	14.2	1.9
Total stockholders' equity	7,439.7	6,757.6	7,725.0	9,065.5
Total Liabilities and Stockholders' Equity	58,606.4	57,947.6	58,932.2
Equipment Operations
ASSETS
Cash and cash equivalents	3,134.9	2,900.0	2,907.1	2,569.2
Marketable securities	40.2	47.7	47.4
Receivables from unconsolidated subsidiaries and affiliates	2,429.5	2,428.7	2,941.5
Trade accounts and notes receivable - net	535.4	485.2	581.2
Financing receivables - net	0.4	0.9	4.7
Other receivables	726.6	849.5	779.2
Inventories	3,851.3	3,817.0	4,319.0
Property and equipment - net	4,994.7	5,126.2	5,072.4
Investments in unconsolidated subsidiaries and affiliates	4,752.9	4,817.6	4,923.8
Goodwill	823.6	726.0	715.9
Other intangible assets - net	109.5	63.6	57.8
Retirement benefits	319.0	211.9	335.5
Deferred income taxes	3,173.2	3,092.0	3,028.6
Other assets	860.1	807.3	859.4
Total Assets	25,751.3	25,373.6	26,573.5
LIABILITIES
Short-term borrowings	261.7	464.3	650.8
Payables to unconsolidated subsidiaries and affiliates	74.2	80.6	73.7
Accounts payable and accrued expenses	6,470.8	6,801.2	7,025.1
Deferred income taxes	97.3	86.8	79.9
Long-term borrowings	4,578.6	4,460.6	4,475.4
Retirement benefits and other liabilities	6,814.6	6,722.5	6,543.6
Total liabilities	18,297.2	18,616.0	18,848.5
Commitments and contingencies (Note 14)
Redeemable noncontrolling interest (Note 18)	14.4
STOCKHOLDERS' EQUITY
Common stock, $1 par value (issued shares at July 31, 2016 - 536,431,204)	$ 3,883.9	$ 3,825.6	$ 3,806.5
Common stock, par value (in dollars per share)	$ 1	$ 1	$ 1
Common stock, issued shares	536,431,204
Common stock in treasury	$ (15,688.3)	$ (15,497.6)	$ (14,562.5)
Retained earnings	23,815.0	23,144.8	22,986.5
Accumulated other comprehensive income (loss)	(4,582.2)	(4,729.4)	(4,507.4)
Total Deere & Company stockholders' equity	7,428.4	6,743.4	7,723.1
Noncontrolling interests	11.3	14.2	1.9
Total stockholders' equity	7,439.7	6,757.6	7,725.0
Total Liabilities and Stockholders' Equity	25,751.3	25,373.6	26,573.5
Financial Services
ASSETS
Cash and cash equivalents	1,186.1	1,262.2	1,223.7	$ 1,217.8
Marketable securities	428.7	389.7	373.7
Trade accounts and notes receivable - net	4,560.6	3,553.1	4,780.9
Financing receivables - net	22,594.4	24,808.1	24,968.7
Financing receivables securitized - net	5,947.4	4,834.6	4,737.8
Other receivables	103.0	152.9	76.2
Equipment on operating leases - net	5,602.7	4,970.4	4,426.0
Property and equipment - net	52.6	55.3	54.0
Investments in unconsolidated subsidiaries and affiliates	11.6	10.5	10.2
Retirement benefits	21.8	25.0	27.1
Deferred income taxes	71.9	67.9	61.6
Other assets	1,045.8	779.1	730.0
Total Assets	41,626.6	40,908.8	41,469.9
LIABILITIES
Short-term borrowings	7,100.4	7,962.3	8,697.1
Short-term securitization borrowings	5,728.9	4,590.0	4,595.4
Payables to unconsolidated subsidiaries and affiliates	2,410.7	2,395.4	2,898.3
Accounts payable and accrued expenses	1,521.0	1,511.2	1,387.3
Deferred income taxes	707.5	466.6	456.2
Long-term borrowings	19,549.8	19,372.2	18,725.5
Retirement benefits and other liabilities	90.0	86.4	86.7
Total liabilities	37,108.3	36,384.1	36,846.5
Commitments and contingencies (Note 14)
STOCKHOLDERS' EQUITY
Common stock, $1 par value (issued shares at July 31, 2016 - 536,431,204)	$ 2,071.9	$ 2,050.8	$ 2,051.3
Common stock, par value (in dollars per share)	$ 1	$ 1	$ 1
Common stock, issued shares	536,431,204
Retained earnings	$ 2,710.5	$ 2,764.8	$ 2,812.2
Accumulated other comprehensive income (loss)	(264.1)	(290.9)	(240.1)
Total Deere & Company stockholders' equity	4,518.3	4,524.7	4,623.4
Total stockholders' equity	4,518.3	4,524.7	4,623.4
Total Liabilities and Stockholders' Equity	$ 41,626.6	$ 40,908.8	$ 41,469.9