SUPPLEMENTAL CONSOLIDATING DATA (Condensed Balance Sheet) (Details 2) (USD $) In Millions, except Share data, unless otherwise specified	Jan. 31, 2012	Oct. 31, 2011	Jan. 31, 2011	Oct. 31, 2010
Assets
Cash and cash equivalents	$ 3,388.3	$ 3,647.2	$ 3,438.0	$ 3,790.6
Marketable securities	1,126.4	787.3	234.2
Receivables from unconsolidated subsidiaries and affiliates	48.6	48.0	43.8
Trade accounts and notes receivable - net	3,333.4	3,294.5	3,237.1
Financing receivables - net	19,098.3	19,923.5	18,164.1
Financing receivables securitized - net	2,680.9	2,905.0	1,768.2
Other receivables	1,245.6	1,330.6	885.1
Equipment on operating leases - net	2,052.4	2,150.0	1,845.4
Inventories	5,677.7	4,370.6	4,178.4
Property and equipment - net	4,303.8	4,352.3	3,781.5
Investments in unconsolidated subsidiaries and affiliates	226.0	201.7	215.3
Goodwill	964.9	999.8	997.3	999.0
Other intangible assets - net	119.4	127.4	133.1
Retirement benefits	29.1	30.4	176.9
Deferred income taxes	2,879.5	2,858.6	2,664.5
Other assets	1,402.6	1,180.5	1,132.9
Total Assets	48,576.9	48,207.4	42,895.8
Liabilities and Stockholders' Equity
Short-term borrowings	8,506.4	6,852.3	5,693.3
Short-term securitization borrowings	2,613.8	2,777.4	1,764.8
Payables to unconsolidated subsidiaries and affiliates	113.5	117.7	276.9
Accounts payable and accrued expenses	6,816.7	7,804.8	5,910.5
Deferred income taxes	152.8	168.3	149.8
Long-term borrowings	16,924.0	16,959.9	16,705.9
Retirement benefits and other liabilities	6,670.5	6,712.1	5,807.9
Total liabilities	41,797.7	41,392.5	36,309.1
Commitments and contingencies (Note 14)
Common stock, $1 par value (issued shares at January 31, 2012 - 536,431,204)	3,276.8	3,251.7	3,154.6
Common stock, issued shares	536,431,204
Common stock, par value (in dollars per share)	$ 1	$ 1	$ 1
Common stock in treasury	(7,656.6)	(7,292.8)	(6,003.2)
Retained earnings	14,887.1	14,519.4	12,719.2
Accumulated other comprehensive income (loss)	(3,743.9)	(3,678.0)	(3,292.0)
Total Deere & Company stockholders' equity	6,763.4	6,800.3	6,578.6
Noncontrolling interests	15.8	14.6	8.1
Total stockholders' equity	6,779.2	6,814.9	6,586.7	6,303.4
Total Liabilities and Stockholders' Equity	48,576.9	48,207.4	42,895.8
Equipment Operations
Assets
Cash and cash equivalents	2,356.6	3,187.5	2,923.0	3,348.3
Marketable securities	803.8	502.6
Receivables from unconsolidated subsidiaries and affiliates	1,135.8	1,713.4	1,654.3
Trade accounts and notes receivable - net	847.0	1,093.9	771.0
Financing receivables - net	5.2	14.0	7.6
Other receivables	890.3	965.6	793.1
Inventories	5,677.7	4,370.6	4,178.4
Property and equipment - net	4,239.8	4,287.5	3,714.2
Investments in unconsolidated subsidiaries and affiliates	3,580.0	3,473.9	3,314.0
Goodwill	964.9	999.8	997.3
Other intangible assets - net	115.4	123.4	129.2
Retirement benefits	28.4	29.6	176.0
Deferred income taxes	3,083.9	3,052.8	2,771.1
Other assets	513.4	468.6	422.0
Total Assets	24,242.2	24,283.2	21,851.2
Liabilities and Stockholders' Equity
Short-term borrowings	1,454.9	528.5	426.0
Payables to unconsolidated subsidiaries and affiliates	113.5	117.7	276.9
Accounts payable and accrued expenses	6,030.0	6,869.3	5,360.5
Deferred income taxes	90.0	99.0	94.8
Long-term borrowings	3,133.5	3,167.1	3,314.8
Retirement benefits and other liabilities	6,641.1	6,686.7	5,791.5
Total liabilities	17,463.0	17,468.3	15,264.5
Common stock, $1 par value (issued shares at January 31, 2012 - 536,431,204)	3,276.8	3,251.7	3,154.6
Common stock in treasury	(7,656.6)	(7,292.8)	(6,003.2)
Retained earnings	14,887.1	14,519.4	12,719.2
Accumulated other comprehensive income (loss)	(3,743.9)	(3,678.0)	(3,292.0)
Total Deere & Company stockholders' equity	6,763.4	6,800.3	6,578.6
Noncontrolling interests	15.8	14.6	8.1
Total stockholders' equity	6,779.2	6,814.9	6,586.7
Total Liabilities and Stockholders' Equity	24,242.2	24,283.2	21,851.2
Financial Services
Assets
Cash and cash equivalents	1,031.7	459.7	515.0	442.3
Marketable securities	322.6	284.7	234.2
Receivables from unconsolidated subsidiaries and affiliates			0.2
Trade accounts and notes receivable - net	3,187.5	2,807.2	3,066.5
Financing receivables - net	19,093.1	19,909.5	18,156.5
Financing receivables securitized - net	2,680.9	2,905.0	1,768.2
Other receivables	382.8	370.1	112.4
Equipment on operating leases - net	2,052.4	2,150.0	1,845.4
Property and equipment - net	64.0	64.9	67.3
Investments in unconsolidated subsidiaries and affiliates	8.0	8.1	7.2
Other intangible assets - net	4.0	4.0	4.0
Retirement benefits	27.0	28.0	30.8
Deferred income taxes	73.6	91.2	106.7
Other assets	889.8	712.6	711.1
Total Assets	29,817.4	29,795.0	26,625.5
Liabilities and Stockholders' Equity
Short-term borrowings	7,051.5	6,323.8	5,267.3
Short-term securitization borrowings	2,613.8	2,777.4	1,764.8
Payables to unconsolidated subsidiaries and affiliates	1,087.2	1,665.5	1,610.6
Accounts payable and accrued expenses	1,516.1	1,547.8	1,171.1
Deferred income taxes	340.7	354.7	268.3
Long-term borrowings	13,790.5	13,792.8	13,391.1
Retirement benefits and other liabilities	55.6	52.6	46.4
Total liabilities	26,455.4	26,514.6	23,519.6
Common stock, $1 par value (issued shares at January 31, 2012 - 536,431,204)	1,591.0	1,570.6	1,521.6
Retained earnings	1,635.5	1,541.5	1,447.7
Accumulated other comprehensive income (loss)	135.5	168.3	136.6
Total Deere & Company stockholders' equity	3,362.0	3,280.4	3,105.9
Total stockholders' equity	3,362.0	3,280.4	3,105.9
Total Liabilities and Stockholders' Equity	$ 29,817.4	$ 29,795.0	$ 26,625.5