SEGMENT AND GEOGRAPHIC AREA DATA FOR THE YEARS ENDED OCTOBER 31, 2012, 2011 AND 2010 (Details 4) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 31, 2012		Oct. 31, 2011		Oct. 31, 2010
Operating Segments
Depreciation and amortization expense	$ 1,004.2		$ 914.9		$ 914.8
Equity in income (loss) of unconsolidated affiliates	(3.4)		8.6		10.7
Identifiable operating assets	56,265.8		48,207.4		43,267.0
Capital additions	1,376		1,059		802
Investments in unconsolidated affiliates	215.0		201.7		245.0
Agriculture and Turf
Operating Segments
Depreciation and amortization expense	550.0		505.0		470.0
Equity in income (loss) of unconsolidated affiliates	(2.0)		5.0		13.0
Identifiable operating assets	10,429.0		9,178.0		7,593.0
Capital additions	1,145		909		729
Investments in unconsolidated affiliates	32.0		35.0		66.0
Construction and Forestry
Operating Segments
Depreciation and amortization expense	93.0		82.0		79.0
Equity in income (loss) of unconsolidated affiliates	(2.0)		3.0		(3.0)
Identifiable operating assets	3,365.0		2,915.0		2,353.0
Capital additions	228		148		73
Investments in unconsolidated affiliates	174.0		159.0		172.0
Financial Services
Operating Segments
Depreciation and amortization expense	361.0		328.0		366.0
Equity in income (loss) of unconsolidated affiliates	1.0		1.0		1.0
Identifiable operating assets	34,495.0		29,795.0		27,507.0
Capital additions	3		2
Investments in unconsolidated affiliates	9.0		8.0		7.0
Corporate
Operating Segments
Identifiable operating assets	$ 7,977.0	[1]	$ 6,319.0	[1]	$ 5,814.0	[1]

[1] Corporate assets are primarily the equipment operations, retirement benefits, deferred income tax assets, marketable securities and cash and cash equivalents as disclosed in Note 31, net of certain intercompany eliminations.