SUPPLEMENTAL CONSOLIDATING DATA (Statement of Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2012	Apr. 30, 2011	Apr. 30, 2012	Apr. 30, 2011
Net Sales and Revenues
Net sales	$ 9,404.6	$ 8,327.6	$ 15,523.6	$ 13,841.4
Finance and interest income	483.9	468.5	959.0	928.6
Other income	120.1	113.6	292.5	258.9
Total	10,008.6	8,909.7	16,775.1	15,028.9
Costs and Expenses
Cost of sales	6,834.5	6,106.9	11,410.4	10,201.0
Research and development expenses	352.0	298.5	664.5	567.4
Selling, administrative and general expenses	881.4	828.2	1,590.5	1,493.1
Interest expense	195.7	192.3	387.8	394.8
Other operating expenses	148.0	143.1	324.6	285.9
Total	8,411.6	7,569.0	14,377.8	12,942.2
Income of Consolidated Group before Income Taxes	1,597.0	1,340.7	2,397.3	2,086.7
Provision for income taxes	541.3	438.9	807.4	671.0
Income of Consolidated Group	1,055.7	901.8	1,589.9	1,415.7
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Net Income	1,058.1	906.7	1,592.5	1,421.1
Less: Net income (loss) attributable to noncontrolling interests	1.9	2.4	3.4	3.0
Net Income Attributable to Deere & Company	1,056.2	904.3	1,589.1	1,418.1
Equipment Operations
Net Sales and Revenues
Net sales	9,404.6	8,327.6	15,523.6	13,841.4
Finance and interest income	17.1	18.0	32.8	33.5
Other income	132.2	109.8	250.6	223.7
Total	9,553.9	8,455.4	15,807.0	14,098.6
Costs and Expenses
Cost of sales	6,834.8	6,107.2	11,411.1	10,201.6
Research and development expenses	352.0	298.5	664.5	567.4
Selling, administrative and general expenses	767.7	728.4	1,377.5	1,299.7
Interest expense	50.5	50.1	99.8	101.9
Interest compensation to Financial Services	55.0	48.5	95.9	89.3
Other operating expenses	71.7	44.7	110.0	86.3
Total	8,131.7	7,277.4	13,758.8	12,346.2
Income of Consolidated Group before Income Taxes	1,422.2	1,178.0	2,048.2	1,752.4
Provision for income taxes	475.4	381.0	685.8	559.4
Income of Consolidated Group	946.8	797.0	1,362.4	1,193.0
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates	111.3	109.7	230.1	228.1
Net Income	1,058.1	906.7	1,592.5	1,421.1
Less: Net income (loss) attributable to noncontrolling interests	1.9	2.4	3.4	3.0
Net Income Attributable to Deere & Company	1,056.2	904.3	1,589.1	1,418.1
Equipment Operations | Financial Services
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates	109.2	105.1	228.3	223.3
Equipment Operations | Other
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates	2.1	4.6	1.8	4.8
Financial Services
Net Sales and Revenues
Finance and interest income	533.6	513.0	1,045.2	1,011.0
Other income	21.3	36.6	109.9	93.7
Total	554.9	549.6	1,155.1	1,104.7
Costs and Expenses
Selling, administrative and general expenses	116.3	102.8	217.8	199.2
Interest expense	157.0	156.2	311.1	319.5
Other operating expenses	106.7	127.9	277.1	251.6
Total	380.0	386.9	806.0	770.3
Income of Consolidated Group before Income Taxes	174.9	162.7	349.1	334.4
Provision for income taxes	66.0	57.9	121.6	111.7
Income of Consolidated Group	108.9	104.8	227.5	222.7
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates	0.3	0.3	0.8	0.6
Net Income	109.2	105.1	228.3	223.3
Net Income Attributable to Deere & Company	109.2	105.1	228.3	223.3
Financial Services | Financial Services
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates
Equity in Income (Loss) of Unconsolidated Subsidiaries and Affiliates	$ 0.3	$ 0.3	$ 0.8	$ 0.6