CAPITAL STOCK (Details) - USD ($) $ / shares in Units, $ 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
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				$ 3,675.4				$ 3,524.0	$ 3,675.4	$ 3,524.0	$ 3,352.0
Stock options and other									151.0	151.0	172.0
Common stock, end of period	$ 3,825.6				$ 3,675.4				$ 3,825.6	$ 3,675.4	3,524.0
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)	$ 8,000.0								$ 8,000.0
Repurchase of common stock shares, December 2013 plan maximum authorization (in shares)	102,600,000								102,600,000
Closing common stock price (in dollars per share)	$ 78.00								$ 78.00
Common stock shares remaining to be repurchased under repurchase plan (in dollars)	$ 3,461.0								$ 3,461.0
Common stock shares remaining to be repurchased under repurchase plan (in shares)	44,400,000								44,400,000
Reconciliation of Basic and Diluted Net Income Per Share
Net income attributable to Deere & Company (in dollars)	$ 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
Less income allocable to participating securities (in dollars)									0.8	1.0	0.9
Income allocable to common stock (in dollars)									$ 1,939.2	$ 3,160.7	$ 3,536.4
Average shares outstanding									333,600,000	363,000,000	385,300,000
Basic per share (in dollars per share)	$ 1.09	$ 1.54	$ 2.05	$ 1.13	$ 1.84	$ 2.35	$ 2.67	$ 1.83	$ 5.81	$ 8.71	$ 9.18
Diluted Earnings Per Share
Average shares outstanding									333,600,000	363,000,000	385,300,000
Effect of dilutive stock options (in shares)									2,400,000	3,100,000	3,900,000
Total potential shares outstanding									336,000,000	366,100,000	389,200,000
Diluted per share (in dollars per share)	$ 1.08	$ 1.53	$ 2.03	$ 1.12	$ 1.83	$ 2.33	$ 2.65	$ 1.81	$ 5.77	$ 8.63	$ 9.09
Antidilutive incremental shares related to share-based compensation excluded from computation of earnings per share										2,400,000	2,400,000