SUPPLEMENTAL CONSOLIDATING DATA (Condensed Balance Sheet) (Details 2) (USD $) In Millions, except Share data, unless otherwise specified	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010	Oct. 31, 2009
ASSETS
Cash and cash equivalents	$ 4,652.2	$ 3,647.2	$ 3,790.6	$ 4,651.7
Marketable securities	1,470.4	787.3
Receivables from unconsolidated subsidiaries and affiliates	59.7	48.0
Trade accounts and notes receivable - net	3,799.1	3,294.5
Financing receivables - net	22,159.1	19,923.5
Financing receivables securitized - net	3,617.6	2,905.0
Other receivables	1,790.9	1,330.6
Equipment on operating leases - net	2,527.8	2,150.0
Inventories	5,170.0	4,370.6
Property and equipment - net	5,011.9	4,352.3	3,791.0
Investments in unconsolidated subsidiaries and affiliates	215.0	201.7	245.0
Goodwill	921.2	999.8	998.6
Other intangible assets - net	105.0	127.4
Retirement benefits	20.2	30.4
Deferred income taxes	3,280.4	2,858.6
Other assets	1,465.3	1,180.5
Total Assets	56,265.8	48,207.4	43,267.0
LIABILITIES
Short-term borrowings	6,392.5	6,852.3
Short-term securitization borrowings	3,574.8	2,777.4
Payables to unconsolidated subsidiaries and affiliates	135.2	117.7
Accounts payable and accrued expenses	8,988.9	7,804.8
Deferred income taxes	164.4	168.3
Long-term borrowings	22,453.1	16,959.9
Retirement benefits and other liabilities	7,694.9	6,712.1
Total liabilities	49,403.8	41,392.5
Commitments and contingencies (Note 22)
STOCKHOLDERS' EQUITY
Common stock, $1 par value (authorized - 1,200,000,000 shares; issued - 536,431,204 shares in 2012 and 2011), at paid-in amount	3,352.2	3,251.7	3,106.0	2,996.0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, authorized (in shares)	1,200,000,000	1,200,000,000
Common stock, issued (in shares)	536,431,204	536,431,204	536,431,204	536,431,204
Common stock in treasury, 148,625,875 shares in 2012 and 130,361,345 shares in 2011, at cost	(8,813.8)	(7,292.8)
Common stock in treasury (in shares)	148,625,875	130,361,345
Retained earnings	16,875.2	14,519.4
Accumulated other comprehensive income (loss):
Retirement benefits adjustment	(4,759.0)	(4,135.4)
Cumulative translation adjustment	184.1	453.8
Unrealized loss on derivatives	(13.4)	(8.3)
Unrealized gain on investments	16.8	11.9
Accumulated other comprehensive income (loss)	(4,571.5)	(3,678.0)
Total Deere & Company stockholders' equity	6,842.1	6,800.3
Noncontrolling interests	19.9	14.6
Total stockholders' equity	6,862.0	6,814.9	6,303.4	4,822.8
Total Liabilities and Stockholders' Equity	56,265.8	48,207.4
Equipment Operations
ASSETS
Cash and cash equivalents	3,907.9	3,187.5	3,348.3	3,689.8
Marketable securities	1,101.5	502.6
Receivables from unconsolidated subsidiaries and affiliates	1,579.0	1,713.4
Trade accounts and notes receivable - net	1,279.7	1,093.9
Financing receivables - net	11.5	14.0
Other receivables	1,092.4	965.6
Inventories	5,170.0	4,370.6
Property and equipment - net	4,950.5	4,287.5
Investments in unconsolidated subsidiaries and affiliates	4,102.4	3,473.9
Goodwill	921.2	999.8
Other intangible assets - net	101.0	123.4
Retirement benefits	14.9	29.6
Deferred income taxes	3,497.3	3,052.8
Other assets	582.9	468.6
Total Assets	28,312.2	24,283.2
LIABILITIES
Short-term borrowings	424.8	528.5
Payables to unconsolidated subsidiaries and affiliates	135.2	117.7
Accounts payable and accrued expenses	7,679.0	6,869.3
Deferred income taxes	93.3	99.0
Long-term borrowings	5,444.9	3,167.1
Retirement benefits and other liabilities	7,673.0	6,686.7
Total liabilities	21,450.2	17,468.3
Commitments and contingencies (Note 22)
STOCKHOLDERS' EQUITY
Common stock, $1 par value (authorized - 1,200,000,000 shares; issued - 536,431,204 shares in 2012 and 2011), at paid-in amount	3,352.2	3,251.7
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, authorized (in shares)	1,200,000,000	1,200,000,000
Common stock, issued (in shares)	536,431,204	536,431,204
Common stock in treasury, 148,625,875 shares in 2012 and 130,361,345 shares in 2011, at cost	(8,813.8)	(7,292.8)
Common stock in treasury (in shares)	148,625,875	130,361,345
Retained earnings	16,875.2	14,519.4
Accumulated other comprehensive income (loss):
Retirement benefits adjustment	(4,759.0)	(4,135.4)
Cumulative translation adjustment	184.1	453.8
Unrealized loss on derivatives	(13.4)	(8.3)
Unrealized gain on investments	16.8	11.9
Accumulated other comprehensive income (loss)	(4,571.5)	(3,678.0)
Total Deere & Company stockholders' equity	6,842.1	6,800.3
Noncontrolling interests	19.9	14.6
Total stockholders' equity	6,862.0	6,814.9
Total Liabilities and Stockholders' Equity	28,312.2	24,283.2
Financial Services
ASSETS
Cash and cash equivalents	744.3	459.7	442.3	961.9
Marketable securities	368.9	284.7
Trade accounts and notes receivable - net	3,333.3	2,807.2
Financing receivables - net	22,147.5	19,909.5
Financing receivables securitized - net	3,617.6	2,905.0
Other receivables	703.6	370.1
Equipment on operating leases - net	2,527.8	2,150.0
Property and equipment - net	61.4	64.9
Investments in unconsolidated subsidiaries and affiliates	8.7	8.1
Other intangible assets - net	4.0	4.0
Retirement benefits	44.6	28.0
Deferred income taxes	50.3	91.2
Other assets	883.5	712.6
Total Assets	34,495.5	29,795.0
LIABILITIES
Short-term borrowings	5,967.7	6,323.8
Short-term securitization borrowings	3,574.8	2,777.4
Payables to unconsolidated subsidiaries and affiliates	1,519.3	1,665.5
Accounts payable and accrued expenses	2,129.9	1,547.8
Deferred income taxes	338.3	354.7
Long-term borrowings	17,008.2	13,792.8
Retirement benefits and other liabilities	61.2	52.6
Total liabilities	30,599.4	26,514.6
Commitments and contingencies (Note 22)
STOCKHOLDERS' EQUITY
Common stock, $1 par value (authorized - 1,200,000,000 shares; issued - 536,431,204 shares in 2012 and 2011), at paid-in amount	1,834.7	1,570.6
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, authorized (in shares)	1,200,000,000	1,200,000,000
Common stock, issued (in shares)	536,431,204	536,431,204
Common stock in treasury (in shares)	148,625,875	130,361,345
Retained earnings	1,958.3	1,541.5
Accumulated other comprehensive income (loss):
Cumulative translation adjustment	98.3	164.7
Unrealized loss on derivatives	(11.6)	(8.3)
Unrealized gain on investments	16.4	11.9
Accumulated other comprehensive income (loss)	103.1	168.3
Total Deere & Company stockholders' equity	3,896.1	3,280.4
Total stockholders' equity	3,896.1	3,280.4
Total Liabilities and Stockholders' Equity	$ 34,495.5	$ 29,795.0