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Business Segment Information - Net Sales to External Customers by Geographical Area (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Apr. 30, 2015
Apr. 30, 2014
Apr. 30, 2015
Apr. 30, 2014
Net sales        
Total net sales $ 915.9us-gaap_SalesRevenueNet $ 1,065.5us-gaap_SalesRevenueNet $ 1,818.2us-gaap_SalesRevenueNet $ 2,067.0us-gaap_SalesRevenueNet
United States [Member]        
Net sales        
Total net sales 428.2us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_US
473.3us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_US
838.2us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_US
914.9us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_US
Europe, Middle East and Africa [Member]        
Net sales        
Total net sales 322.8us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_EMEAMember
414.6us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_EMEAMember
642.2us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_EMEAMember
788.5us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= us-gaap_EMEAMember
Asia Pacific and Other Americas [Member]        
Net sales        
Total net sales $ 164.9us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= gef_AsiaPacificAndOtherAmericasMember
$ 177.6us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= gef_AsiaPacificAndOtherAmericasMember
$ 337.8us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= gef_AsiaPacificAndOtherAmericasMember
$ 363.6us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= gef_AsiaPacificAndOtherAmericasMember