SUPPLEMENTAL CONSOLIDATING DATA (Income Statement) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Net Sales and Revenues
Net sales	$ 5,932.0	$ 6,839.0	$ 7,399.0	$ 5,605.0	$ 8,043.0	$ 8,723.0	$ 9,246.0	$ 6,949.0	$ 25,775.2	$ 32,960.6	$ 34,997.9
Finance and interest income									2,381.1	2,282.1	2,115.1
Other income									706.5	824.2	682.4
Total	6,715.0	7,594.0	8,171.0	6,383.0	8,965.0	9,500.0	9,948.0	7,654.0	28,862.8	36,066.9	37,795.4
Costs and Expenses
Cost of sales									20,143.2	24,775.8	25,667.3
Research and development expenses									1,425.1	1,452.0	1,477.3
Selling, administrative and general expenses									2,873.3	3,284.4	3,605.5
Interest expense									680.0	664.0	741.3
Other operating expenses									961.1	1,093.3	820.6
Total									26,082.7	31,269.5	32,312.0
Income of Consolidated Group before Income Taxes	457.0	738.0	1,017.0	568.0	1,076.0	1,292.0	1,464.0	965.0	2,780.1	4,797.4	5,483.4
Provision for income taxes									840.1	1,626.5	1,945.9
Income of Consolidated Group									1,940.0	3,170.9	3,537.5
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Net Income									1,940.9	3,163.3	3,537.6
Less: Net income attributable to noncontrolling interests									0.9	1.6	0.3
Net Income Attributable to Deere & Company	$ 351.0	$ 512.0	$ 690.0	$ 387.0	$ 649.0	$ 851.0	$ 981.0	$ 681.0	1,940.0	3,161.7	3,537.3
Equipment Operations
Net Sales and Revenues
Net sales									25,775.2	32,960.6	34,997.9
Finance and interest income									77.0	76.5	80.8
Other income									602.7	622.6	549.1
Total									26,454.9	33,659.7	35,627.8
Costs and Expenses
Cost of sales									20,145.2	24,777.8	25,668.8
Research and development expenses									1,425.1	1,452.0	1,477.3
Selling, administrative and general expenses									2,393.8	2,765.1	3,143.9
Interest expense									272.8	289.4	297.1
Interest compensation to Financial Services									204.8	212.1	202.7
Other operating expenses									195.0	285.4	223.7
Total									24,636.7	29,781.8	31,013.5
Income of Consolidated Group before Income Taxes									1,818.2	3,877.9	4,614.3
Provision for income taxes									509.9	1,329.6	1,640.7
Income of Consolidated Group									1,308.3	2,548.3	2,973.6
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates									632.6	615.0	564.0
Net Income									1,940.9	3,163.3	3,537.6
Less: Net income attributable to noncontrolling interests									0.9	1.6	0.3
Net Income Attributable to Deere & Company									1,940.0	3,161.7	3,537.3
Equipment Operations | Financial Services
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates									632.9	624.5	565.0
Equipment Operations | Other
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates									(0.3)	(9.5)	(1.0)
Financial Services
Net Sales and Revenues
Finance and interest income									2,557.0	2,475.0	2,280.5
Other income									258.9	330.2	288.4
Total									2,815.9	2,805.2	2,568.9
Costs and Expenses
Selling, administrative and general expenses									487.3	529.2	473.2
Interest expense									455.0	430.9	487.6
Other operating expenses									911.7	925.6	739.0
Total									1,854.0	1,885.7	1,699.8
Income of Consolidated Group before Income Taxes									961.9	919.5	869.1
Provision for income taxes									330.2	296.9	305.2
Income of Consolidated Group									631.7	622.6	563.9
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates									1.2	1.9	1.1
Net Income									632.9	624.5	565.0
Net Income Attributable to Deere & Company									632.9	624.5	565.0
Financial Services | Financial Services
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates									$ 1.2	$ 1.9	$ 1.1