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Fair Value Measurements (Details Textual)
Jan. 30, 2015
Oct. 31, 2014
Nov. 01, 2006
Oct. 12, 2011
6.0% Senior Notes due 2016        
Debt Instrument [Line Items]        
Interest rate 6.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= joy_SeniorNotesDueTwoThousandSixteenMember
6.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= joy_SeniorNotesDueTwoThousandSixteenMember
6.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= joy_SeniorNotesDueTwoThousandSixteenMember
 
5.125% Senior Notes due 2021        
Debt Instrument [Line Items]        
Interest rate 5.125%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= joy_SeniorNotesDueTwoThousandTwentyOneMember
5.125%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= joy_SeniorNotesDueTwoThousandTwentyOneMember
  5.125%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= joy_SeniorNotesDueTwoThousandTwentyOneMember
6.625% Senior Notes due 2036        
Debt Instrument [Line Items]        
Interest rate 6.625%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= joy_SeniorNotesDueTwoThousandThirtySixMember
6.625%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= joy_SeniorNotesDueTwoThousandThirtySixMember
6.625%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= joy_SeniorNotesDueTwoThousandThirtySixMember