SEGMENT REPORTING (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2012	Jul. 31, 2011	Oct. 31, 2011
Net Sales and Revenues
Total net sales	$ 8,930.3	$ 7,721.6	$ 24,453.9	$ 21,563.0
% Change - Net sales (as a percent)	16.00%		13.00%
Total	9,590.4	8,371.9	26,365.5	23,400.8
% Change - Revenues (as a percent)	15.00%		13.00%
Operating Profit (Loss)
Total operating profit (loss)	1,297	1,163	3,867	3,412
% Change - Operating profit (loss) (as a percent)	12.00%		13.00%
Net income (loss) attributable to Deere & Company	788.0	712.3	2,377.1	2,130.3
% Change - Net income (loss) attributable to Deere & Company (as a percent)	11.00%		12.00%
Operating Segments (Other)
Reconciling items	(82)	(81)	(256)	(241)
% Change - Reconciling items (as a percent)	1.00%		6.00%
Income taxes	426.8	369.5	1,234.1	1,040.7
% Change - Income taxes (as a percent)	15.00%		19.00%
Identifiable Assets
Total Assets	53,198.6	47,135.1	53,198.6	47,135.1	48,207.4
% Change - Identifiable assets (as a percent)			10.00%
Equipment Operations
Net Sales and Revenues
Total net sales	8,930.3	7,721.6	24,453.9	21,563.0
Total	9,061.3	7,855.7	24,868.3	21,954.3
Operating Profit (Loss)
Net income (loss) attributable to Deere & Company	788.0	712.3	2,377.1	2,130.3
Operating Segments (Other)
Income taxes	366.7	301.2	1,052.4	860.6
Identifiable Assets
Total Assets	27,280.3	24,224.2	27,280.3	24,224.2	24,283.2
Equipment Operations | Outside U.S. and Canada:
Net Sales and Revenues
Total net sales	3,371.0	3,364.0	9,505.0	8,860.0
% Change - Net sales (as a percent)			7.00%
Operating Profit (Loss)
Total operating profit (loss)	156	300	558	848
% Change - Operating profit (loss) (as a percent)	(48.00%)		(34.00%)
Agriculture and Turf
Net Sales and Revenues
Total net sales	7,271.0	6,371.0	19,730.0	17,740.0
% Change - Net sales (as a percent)	14.00%		11.00%
Operating Profit (Loss)
Total operating profit (loss)	1,014	859	2,991	2,579
% Change - Operating profit (loss) (as a percent)	18.00%		16.00%
Operating Segments (Other)
Intersegment sales and revenues	18	26	64	71
% Change - Intersegment sales and revenues (as a percent)	(31.00%)		(10.00%)
Identifiable Assets
Total Assets	10,639.0		10,639.0		9,178.0
% Change - Identifiable assets (as a percent)			16.00%
Construction and Forestry
Net Sales and Revenues
Total net sales	1,659.0	1,351.0	4,724.0	3,823.0
% Change - Net sales (as a percent)	23.00%		24.00%
Operating Profit (Loss)
Total operating profit (loss)	113	110	356	304
% Change - Operating profit (loss) (as a percent)	3.00%		17.00%
Operating Segments (Other)
Intersegment sales and revenues		4	1	15
% Change - Intersegment sales and revenues (as a percent)			(93.00%)
Identifiable Assets
Total Assets	3,184.0		3,184.0		2,915.0
% Change - Identifiable assets (as a percent)			9.00%
Financial Services
Net Sales and Revenues
Total	565.0	550.0	1,602.0	1,548.0
% Change - Revenues (as a percent)	3.00%		3.00%
Operating Profit (Loss)
Total operating profit (loss)	170	194	520	529
% Change - Operating profit (loss) (as a percent)	(12.00%)		(2.00%)
Operating Segments (Other)
Intersegment sales and revenues	53	57	172	164
% Change - Intersegment sales and revenues (as a percent)	(7.00%)		5.00%
Identifiable Assets
Total Assets	32,941.0		32,941.0		29,795.0
% Change - Identifiable assets (as a percent)			11.00%
Other Reconciling Items
Net Sales and Revenues
Total	95.0	100.0	309.0	290.0
% Change - Revenues (as a percent)	(5.00%)		7.00%
Operating Segments (Other)
% Change - Reconciling items (as a percent)	1.00%		6.00%
% Change - Income taxes (as a percent)	15.00%		19.00%
Corporate
Identifiable Assets
Total Assets	$ 6,435.0		$ 6,435.0		$ 6,319.0
% Change - Identifiable assets (as a percent)			2.00%