SUPPLEMENTAL CONSOLIDATING DATA (Income Statement) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Net Sales and Revenues
Net sales	$ 6,839.5	$ 8,723.0	$ 19,843.1	$ 24,917.8
Finance and interest income	596.7	573.5	1,766.7	1,649.0
Other income	157.5	203.7	537.7	535.3
Total	7,593.7	9,500.2	22,147.5	27,102.1
Costs and Expenses
Cost of sales	5,358.0	6,611.3	15,472.8	18,678.7
Research and development expenses	346.8	362.1	1,021.1	1,039.9
Selling, administrative and general expenses	755.3	820.7	2,154.2	2,433.0
Interest expense	171.5	153.9	517.1	491.5
Other operating expenses	223.6	260.0	659.1	738.1
Total	6,855.2	8,208.0	19,824.3	23,381.2
Income of Consolidated Group before Income Taxes	738.5	1,292.2	2,323.2	3,720.9
Provision for income taxes	241.0	450.2	735.6	1,209.6
Income of Consolidated Group	497.5	842.0	1,587.6	2,511.3
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Net Income	511.7	850.9	1,589.4	2,513.5
Less: Net income attributable to noncontrolling interests	0.1	0.2	0.6	1.0
Net Income Attributable to Deere & Company	511.6	850.7	1,588.8	2,512.5
Equipment Operations
Net Sales and Revenues
Net sales	6,839.5	8,723.0	19,843.1	24,917.8
Finance and interest income	20.8	14.2	58.8	50.0
Other income	140.8	147.2	451.2	447.6
Total	7,001.1	8,884.4	20,353.1	25,415.4
Costs and Expenses
Cost of sales	5,358.4	6,611.6	15,474.2	18,679.5
Research and development expenses	346.8	362.1	1,021.1	1,039.9
Selling, administrative and general expenses	633.5	684.5	1,794.1	2,046.9
Interest expense	69.6	61.1	208.0	216.5
Interest compensation to Financial Services	56.7	60.4	156.0	157.4
Other operating expenses	36.3	60.9	112.6	212.8
Total	6,501.3	7,840.6	18,766.0	22,353.0
Income of Consolidated Group before Income Taxes	499.8	1,043.8	1,587.1	3,062.4
Provision for income taxes	155.5	363.8	478.5	1,001.7
Income of Consolidated Group	344.3	680.0	1,108.6	2,060.7
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates	167.4	170.9	480.8	452.8
Net Income	511.7	850.9	1,589.4	2,513.5
Less: Net income attributable to noncontrolling interests	0.1	0.2	0.6	1.0
Net Income Attributable to Deere & Company	511.6	850.7	1,588.8	2,512.5
Equipment Operations | Financial Services
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates	153.4	162.3	480.0	452.2
Equipment Operations | Other
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates	14.0	8.6	0.8	0.6
Financial Services
Net Sales and Revenues
Finance and interest income	644.3	634.2	1,900.9	1,795.2
Other income	51.2	85.6	201.4	188.6
Total	695.5	719.8	2,102.3	1,983.8
Costs and Expenses
Selling, administrative and general expenses	123.9	138.8	366.9	394.2
Interest expense	113.6	107.3	346.0	313.0
Other operating expenses	219.3	225.3	653.3	618.0
Total	456.8	471.4	1,366.2	1,325.2
Income of Consolidated Group before Income Taxes	238.7	248.4	736.1	658.6
Provision for income taxes	85.5	86.4	257.1	208.0
Income of Consolidated Group	153.2	162.0	479.0	450.6
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates	0.2	0.3	1.0	1.6
Net Income	153.4	162.3	480.0	452.2
Net Income Attributable to Deere & Company	153.4	162.3	480.0	452.2
Financial Services | Financial Services
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates	$ 0.2	$ 0.3	$ 1.0	$ 1.6