SEGMENT AND GEOGRAPHIC AREA DATA FOR THE YEARS ENDED OCTOBER 31, 2012, 2011 AND 2010 (Details 3) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Oct. 31, 2012	Jul. 31, 2012	Apr. 30, 2012	Jan. 31, 2012	Oct. 31, 2011	Jul. 31, 2011	Apr. 30, 2011	Jan. 31, 2011	Oct. 31, 2012		Oct. 31, 2011		Oct. 31, 2010
Operating Profit (Loss)
Operating profit (loss)									$ 5,109		$ 4,564		$ 3,408
Interest income									1,436		1,423		1,364
Interest expense									(782.8)		(759.4)		(811.4)
Income taxes									(1,659.4)		(1,423.6)		(1,161.6)
Net Income									3,071.6		2,807.8		1,874.3
Less: Net income attributable to noncontrolling interests									6.9		7.9		9.3
Net Income Attributable to Deere & Company	688.0	788.0	1,056.0	533.0	670.0	712.0	904.0	514.0	3,064.7		2,799.9		1,865.0
Agriculture and Turf
Operating Profit (Loss)
Operating profit (loss)									3,921		3,447		2,790
Interest income									29		23		20
Interest expense									(168.0)		(152.0)		(165.0)
Construction and Forestry
Operating Profit (Loss)
Operating profit (loss)									476		392		119
Interest income									2		3		3
Interest expense									(36.0)		(26.0)		(21.0)
Financial Services
Operating Profit (Loss)
Operating profit (loss)									712	[1]	725	[1]	499	[1]
Interest income									1,610		1,581		1,528
Interest expense									(596.0)		(621.0)		(670.0)
Corporate
Operating Profit (Loss)
Interest income									43		47		42
Investment income									2
Interest expense									(231.0)		(191.0)		(184.0)
Foreign exchange gain (loss) from equipment operations' financing activities									(11)		(11)		(30)
Corporate expenses - net									(181)		(177)		(200)
Income taxes									(1,659.0)		(1,424.0)		(1,162.0)
Total									(2,037)		(1,756)		(1,534)
Intercompany Eliminations
Operating Profit (Loss)
Interest income									(248)		(231)		(229)
Interest expense									$ 248.0		$ 231.0		$ 229.0

[1] Operating profit of the financial services business segment includes the effect of its interest expense and foreign exchange gains or losses.