CAPITAL STOCK (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Changes in common stock
Common stock, beginning of period (in shares)				536,431,204				536,400,000	536,431,204	536,400,000	536,400,000
Common stock, end of period (in shares)	536,431,204				536,431,204				536,431,204	536,431,204	536,400,000
Common stock, beginning of period				$ 3,524.2				$ 3,352.0	$ 3,524.2	$ 3,352.0	$ 3,252.0
Stock options and other									151	172	100
Common stock, end of period	3,675.4				3,524.2				3,675.4	3,524.2	3,352.0
Common stock, authorized (in shares)	1,200,000,000				1,200,000,000				1,200,000,000	1,200,000,000
Preferred stock, authorized (in shares)	9,000,000								9,000,000
Preferred stock, issued (in shares)	0								0
Common stock repurchase plans
Repurchase of common stock shares, December 2013 plan maximum authorization (in dollars)	8,000								8,000
Repurchase of common stock shares, December 2013 plan maximum authorization (in shares)	93,500,000								93,500,000
Closing common stock price (in dollars per share)	$ 85.54								$ 85.54
Common stock shares remaining to be repurchased under repurchase plan (in dollars)	6,230								6,230
Common stock shares remaining to be repurchased under repurchase plan (in shares)	72,800,000								72,800,000
Reconciliation of Basic and Diluted Net Income Per Share
Net income attributable to Deere & Company (in dollars)	649.0	851.0	981.0	681.0	807.0	996.0	1,084.0	650.0	3,161.7	3,537.3	3,064.7
Less income allocable to participating securities (in dollars)									1.0	0.9	0.8
Income allocable to common stock (in dollars)									$ 3,160.7	$ 3,536.4	$ 3,063.9
Average shares outstanding									363,000,000	385,300,000	397,100,000
Basic per share (in dollars per share)	$ 1.84	$ 2.35	$ 2.67	$ 1.83	$ 2.13	$ 2.58	$ 2.79	$ 1.67	$ 8.71	$ 9.18	$ 7.72
Diluted Earnings Per Share
Average shares outstanding									363,000,000	385,300,000	397,100,000
Effect of dilutive stock options (in shares)									3,100,000	3,900,000	4,400,000
Total potential shares outstanding									366,100,000	389,200,000	401,500,000
Diluted per share (in dollars per share)	$ 1.83	$ 2.33	$ 2.65	$ 1.81	$ 2.11	$ 2.56	$ 2.76	$ 1.65	$ 8.63	$ 9.09	$ 7.63
Antidilutive incremental shares related to share-based compensation excluded from computation of earnings per share									2,400,000	2,400,000	1,800,000