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SEGMENT AND GEOGRAPHIC AREA DATA FOR THE YEARS ENDED OCTOBER 31, 2014, 2013 AND 2012 (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 12 Months Ended
Oct. 31, 2014
Jul. 31, 2014
Apr. 30, 2014
Jan. 31, 2014
Oct. 31, 2013
Jul. 31, 2013
Apr. 30, 2013
Jan. 31, 2013
Oct. 31, 2014
item
Oct. 31, 2013
Oct. 31, 2012
SEGMENT AND GEOGRAPHIC AREA DATA FOR THE YEARS ENDED OCTOBER 31, 2014, 2013 AND 2012                      
Number of major business segments                 3us-gaap_NumberOfOperatingSegments    
Net Sales and Revenues                      
Total net sales $ 8,043.0us-gaap_SalesRevenueGoodsNet $ 8,723.0us-gaap_SalesRevenueGoodsNet $ 9,246.0us-gaap_SalesRevenueGoodsNet $ 6,949.0us-gaap_SalesRevenueGoodsNet $ 8,624.0us-gaap_SalesRevenueGoodsNet $ 9,316.0us-gaap_SalesRevenueGoodsNet $ 10,265.0us-gaap_SalesRevenueGoodsNet $ 6,793.0us-gaap_SalesRevenueGoodsNet $ 32,960.6us-gaap_SalesRevenueGoodsNet $ 34,997.9us-gaap_SalesRevenueGoodsNet $ 33,500.9us-gaap_SalesRevenueGoodsNet
Total 8,965.0us-gaap_Revenues 9,500.0us-gaap_Revenues 9,948.0us-gaap_Revenues 7,654.0us-gaap_Revenues 9,451.0us-gaap_Revenues 10,010.0us-gaap_Revenues 10,913.0us-gaap_Revenues 7,421.0us-gaap_Revenues 36,066.9us-gaap_Revenues 37,795.4us-gaap_Revenues 36,157.1us-gaap_Revenues
Agriculture and Turf                      
Net Sales and Revenues                      
Total net sales                 26,380.0us-gaap_SalesRevenueGoodsNet
/ us-gaap_StatementBusinessSegmentsAxis
= de_AgricultureAndTurfSegmentMember		 29,132.0us-gaap_SalesRevenueGoodsNet
/ us-gaap_StatementBusinessSegmentsAxis
= de_AgricultureAndTurfSegmentMember		 27,123.0us-gaap_SalesRevenueGoodsNet
/ us-gaap_StatementBusinessSegmentsAxis
= de_AgricultureAndTurfSegmentMember
Construction and Forestry                      
Net Sales and Revenues                      
Total net sales                 6,581.0us-gaap_SalesRevenueGoodsNet
/ us-gaap_StatementBusinessSegmentsAxis
= de_ConstructionAndForestrySegmentMember		 5,866.0us-gaap_SalesRevenueGoodsNet
/ us-gaap_StatementBusinessSegmentsAxis
= de_ConstructionAndForestrySegmentMember		 6,378.0us-gaap_SalesRevenueGoodsNet
/ us-gaap_StatementBusinessSegmentsAxis
= de_ConstructionAndForestrySegmentMember
Financial Services                      
Net Sales and Revenues                      
Total                 2,577.0us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= de_FinancialServicesSegmentMember		 2,349.0us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= de_FinancialServicesSegmentMember		 2,235.0us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= de_FinancialServicesSegmentMember
Intersegment Sales and Revenue | Agriculture and Turf                      
Net Sales and Revenues                      
Total                 89.0us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= de_IntersegmentRevenueMember
/ us-gaap_StatementBusinessSegmentsAxis
= de_AgricultureAndTurfSegmentMember		 69.0us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= de_IntersegmentRevenueMember
/ us-gaap_StatementBusinessSegmentsAxis
= de_AgricultureAndTurfSegmentMember		 84.0us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= de_IntersegmentRevenueMember
/ us-gaap_StatementBusinessSegmentsAxis
= de_AgricultureAndTurfSegmentMember
Intersegment Sales and Revenue | Construction and Forestry                      
Net Sales and Revenues                      
Total                 1.0us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= de_IntersegmentRevenueMember
/ us-gaap_StatementBusinessSegmentsAxis
= de_ConstructionAndForestrySegmentMember		 2.0us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= de_IntersegmentRevenueMember
/ us-gaap_StatementBusinessSegmentsAxis
= de_ConstructionAndForestrySegmentMember		 1.0us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= de_IntersegmentRevenueMember
/ us-gaap_StatementBusinessSegmentsAxis
= de_ConstructionAndForestrySegmentMember
Intersegment Sales and Revenue | Financial Services                      
Net Sales and Revenues                      
Total                 228.0us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= de_IntersegmentRevenueMember
/ us-gaap_StatementBusinessSegmentsAxis
= de_FinancialServicesSegmentMember		 220.0us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= de_IntersegmentRevenueMember
/ us-gaap_StatementBusinessSegmentsAxis
= de_FinancialServicesSegmentMember		 219.0us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= de_IntersegmentRevenueMember
/ us-gaap_StatementBusinessSegmentsAxis
= de_FinancialServicesSegmentMember
Other Revenues                      
Net Sales and Revenues                      
Total                 $ 529.0us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 $ 448.0us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember		 $ 421.0us-gaap_Revenues
/ us-gaap_ConsolidationItemsAxis
= us-gaap_MaterialReconcilingItemsMember