2.4.0.8401004 - Disclosure - Fair Value Measurements (Parenthetical) (Details)truefalseIn Millions, unless otherwise specifiedfalse1falseUSDfalsefalse$FROM_Apr01_2013_TO_Jun30_2013http://www.sec.gov/CIK0000040554duration2013-04-01T00:00:002013-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2falseUSDfalsefalse$FROM_Apr01_2012_TO_Jun30_2012http://www.sec.gov/CIK0000040554duration2012-04-01T00:00:002012-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3falseUSDfalsefalse$FROM_Jan01_2013_TO_Jun30_2013http://www.sec.gov/CIK0000040554duration2013-01-01T00:00:002013-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$4falseUSDfalsefalse$FROM_Jan01_2012_TO_Jun30_2012http://www.sec.gov/CIK0000040554duration2012-01-01T00:00:002012-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$5falseUSDfalsefalse$AS_OF_Dec31_2012http://www.sec.gov/CIK0000040554instant2012-12-31T00:00:000001-01-01T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$6falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CostAndEquityMethodInvestmentsMemberhttp://www.sec.gov/CIK0000040554duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseCost and equity method investments [Member]us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisxbrldihttp://xbrl.org/2006/xbrldigecc_CostAndEquityMethodInvestmentsMemberus-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$7falseUSDtruefalse$FROM_Apr01_2012_TO_Jun30_2012_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CostAndEquityMethodInvestmentsMemberhttp://www.sec.gov/CIK0000040554duration2012-04-01T00:00:002012-06-30T00:00:00falsefalseCost and equity method investments [Member]us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisxbrldihttp://xbrl.org/2006/xbrldigecc_CostAndEquityMethodInvestmentsMemberus-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$8falseUSDtruefalse$FROM_Jan01_2013_TO_Jun30_2013_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CostAndEquityMethodInvestmentsMemberhttp://www.sec.gov/CIK0000040554duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseCost and equity method investments [Member]us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisxbrldihttp://xbrl.org/2006/xbrldigecc_CostAndEquityMethodInvestmentsMemberus-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$9falseUSDtruefalse$FROM_Jan01_2012_TO_Jun30_2012_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CostAndEquityMethodInvestmentsMemberhttp://www.sec.gov/CIK0000040554duration2012-01-01T00:00:002012-06-30T00:00:00falsefalseCost and equity method investments [Member]us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisxbrldihttp://xbrl.org/2006/xbrldigecc_CostAndEquityMethodInvestmentsMemberus-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$10falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_LongLivedAssetsIncludingRealEstateMemberhttp://www.sec.gov/CIK0000040554duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseLong Lived Assets, Including Real Estate [Member]us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisxbrldihttp://xbrl.org/2006/xbrldigecc_LongLivedAssetsIncludingRealEstateMemberus-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$11falseUSDtruefalse$FROM_Apr01_2012_TO_Jun30_2012_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_LongLivedAssetsIncludingRealEstateMemberhttp://www.sec.gov/CIK0000040554duration2012-04-01T00:00:002012-06-30T00:00:00falsefalseLong Lived Assets, Including Real Estate [Member]us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisxbrldihttp://xbrl.org/2006/xbrldigecc_LongLivedAssetsIncludingRealEstateMemberus-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$12falseUSDtruefalse$FROM_Jan01_2013_TO_Jun30_2013_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_LongLivedAssetsIncludingRealEstateMemberhttp://www.sec.gov/CIK0000040554duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseLong Lived Assets, Including Real Estate [Member]us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisxbrldihttp://xbrl.org/2006/xbrldigecc_LongLivedAssetsIncludingRealEstateMemberus-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$13falseUSDtruefalse$FROM_Jan01_2012_TO_Jun30_2012_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_LongLivedAssetsIncludingRealEstateMemberhttp://www.sec.gov/CIK0000040554duration2012-01-01T00:00:002012-06-30T00:00:00falsefalseLong Lived Assets, Including Real Estate [Member]us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisxbrldihttp://xbrl.org/2006/xbrldigecc_LongLivedAssetsIncludingRealEstateMemberus-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$14falseUSDtruefalse$AS_OF_Jun30_2013_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CostAndEquityMethodInvestmentsMember_us-gaap_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel3Memberhttp://www.sec.gov/CIK0000040554instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseFair Value, Inputs, Level 3 [Member]us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseCost and equity method investments [Member]us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisxbrldihttp://xbrl.org/2006/xbrldigecc_CostAndEquityMethodInvestmentsMemberus-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$15falseUSDtruefalse$AS_OF_Dec31_2012_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_CostAndEquityMethodInvestmentsMember_us-gaap_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel3Memberhttp://www.sec.gov/CIK0000040554instant2012-12-31T00:00:000001-01-01T00:00:00falsefalseFair Value, Inputs, Level 3 [Member]us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseCost and equity method investments [Member]us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisxbrldihttp://xbrl.org/2006/xbrldigecc_CostAndEquityMethodInvestmentsMemberus-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$16falseUSDtruefalse$AS_OF_Jun30_2013_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_LongLivedAssetsIncludingRealEstateMember_us-gaap_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel3Memberhttp://www.sec.gov/CIK0000040554instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseFair Value, Inputs, Level 3 [Member]us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseLong Lived Assets, Including Real Estate [Member]us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisxbrldihttp://xbrl.org/2006/xbrldigecc_LongLivedAssetsIncludingRealEstateMemberus-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$17falseUSDtruefalse$AS_OF_Dec31_2012_us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxis_LongLivedAssetsIncludingRealEstateMember_us-gaap_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel3Memberhttp://www.sec.gov/CIK0000040554instant2012-12-31T00:00:000001-01-01T00:00:00falsefalseFair Value, Inputs, Level 3 [Member]us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseLong Lived Assets, Including Real Estate [Member]us-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisxbrldihttp://xbrl.org/2006/xbrldigecc_LongLivedAssetsIncludingRealEstateMemberus-gaap_FairValueByBalanceSheetGroupingDisclosureItemAmountsAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$18falseUSDtruefalse$AS_OF_Jun30_2013_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_RetainedInterestMemberhttp://www.sec.gov/CIK0000040554instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseRetained Interest [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RetainedInterestMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$19falseUSDtruefalse$AS_OF_Mar31_2013_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_RetainedInterestMemberhttp://www.sec.gov/CIK0000040554instant2013-03-31T00:00:000001-01-01T00:00:00falsefalseRetained Interest [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RetainedInterestMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$20falseUSDtruefalse$AS_OF_Dec31_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_RetainedInterestMemberhttp://www.sec.gov/CIK0000040554instant2012-12-31T00:00:000001-01-01T00:00:00falsefalseRetained Interest [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RetainedInterestMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$21falseUSDtruefalse$AS_OF_Jun30_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_RetainedInterestMemberhttp://www.sec.gov/CIK0000040554instant2012-06-30T00:00:000001-01-01T00:00:00falsefalseRetained Interest [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RetainedInterestMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$22falseUSDtruefalse$AS_OF_Mar31_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_RetainedInterestMemberhttp://www.sec.gov/CIK0000040554instant2012-03-31T00:00:000001-01-01T00:00:00falsefalseRetained Interest [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RetainedInterestMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$23falseUSDtruefalse$AS_OF_Dec31_2011_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_RetainedInterestMemberhttp://www.sec.gov/CIK0000040554instant2011-12-31T00:00:000001-01-01T00:00:00falsefalseRetained Interest [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RetainedInterestMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$24falseUSDtruefalse$AS_OF_Jun30_2013_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_RetainedInterestMember_us-gaap_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel3Memberhttp://www.sec.gov/CIK0000040554instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseRetained Interest [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RetainedInterestMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberfalsefalseFair Value, Inputs, Level 3 [Member]us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$25falseUSDtruefalse$AS_OF_Dec31_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_RetainedInterestMember_us-gaap_FairValueByFairValueHierarchyLevelAxis_FairValueInputsLevel3Memberhttp://www.sec.gov/CIK0000040554instant2012-12-31T00:00:000001-01-01T00:00:00falsefalseRetained Interest [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_RetainedInterestMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberfalsefalseFair Value, Inputs, Level 3 [Member]us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$26falseUSDtruefalse$AS_OF_Jun30_2013_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_DerivativesMemberhttp://www.sec.gov/CIK0000040554instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseDerivatives [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_DerivativesMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$27falseUSDtruefalse$AS_OF_Mar31_2013_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_DerivativesMemberhttp://www.sec.gov/CIK0000040554instant2013-03-31T00:00:000001-01-01T00:00:00falsefalseDerivatives [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_DerivativesMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$28falseUSDtruefalse$AS_OF_Dec31_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_DerivativesMemberhttp://www.sec.gov/CIK0000040554instant2012-12-31T00:00:000001-01-01T00:00:00falsefalseDerivatives [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_DerivativesMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$29falseUSDtruefalse$AS_OF_Jun30_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_DerivativesMemberhttp://www.sec.gov/CIK0000040554instant2012-06-30T00:00:000001-01-01T00:00:00falsefalseDerivatives [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_DerivativesMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$30falseUSDtruefalse$AS_OF_Mar31_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_DerivativesMemberhttp://www.sec.gov/CIK0000040554instant2012-03-31T00:00:000001-01-01T00:00:00falsefalseDerivatives [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_DerivativesMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$31falseUSDtruefalse$AS_OF_Dec31_2011_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_DerivativesMemberhttp://www.sec.gov/CIK0000040554instant2011-12-31T00:00:000001-01-01T00:00:00falsefalseDerivatives [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_DerivativesMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$32falseUSDtruefalse$AS_OF_Jun30_2013_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_Other1Memberhttp://www.sec.gov/CIK0000040554instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseOther 1 [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_Other1Membergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$33falseUSDtruefalse$AS_OF_Mar31_2013_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_Other1Memberhttp://www.sec.gov/CIK0000040554instant2013-03-31T00:00:000001-01-01T00:00:00falsefalseOther 1 [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_Other1Membergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$34falseUSDtruefalse$AS_OF_Jun30_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_Other1Memberhttp://www.sec.gov/CIK0000040554instant2012-06-30T00:00:000001-01-01T00:00:00falsefalseOther 1 [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_Other1Membergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$35falseUSDtruefalse$AS_OF_Mar31_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_Other1Memberhttp://www.sec.gov/CIK0000040554instant2012-03-31T00:00:000001-01-01T00:00:00falsefalseOther 1 [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_Other1Membergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$36falseUSDtruefalse$AS_OF_Dec31_2011_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_Other1Memberhttp://www.sec.gov/CIK0000040554instant2011-12-31T00:00:000001-01-01T00:00:00falsefalseOther 1 [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_Other1Membergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$37falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_PrivateEquityAndRealEstateFundsMemberhttp://www.sec.gov/CIK0000040554duration2013-04-01T00:00:002013-06-30T00:00:00falsefalsePrivate Equity And Real Estate Funds [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_PrivateEquityAndRealEstateFundsMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$38falseUSDtruefalse$FROM_Apr01_2012_TO_Jun30_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_PrivateEquityAndRealEstateFundsMemberhttp://www.sec.gov/CIK0000040554duration2012-04-01T00:00:002012-06-30T00:00:00falsefalsePrivate Equity And Real Estate Funds [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_PrivateEquityAndRealEstateFundsMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$39falseUSDtruefalse$FROM_Jan01_2013_TO_Jun30_2013_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_PrivateEquityAndRealEstateFundsMemberhttp://www.sec.gov/CIK0000040554duration2013-01-01T00:00:002013-06-30T00:00:00falsefalsePrivate Equity And Real Estate Funds [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_PrivateEquityAndRealEstateFundsMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$40falseUSDtruefalse$FROM_Jan01_2012_TO_Jun30_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_PrivateEquityAndRealEstateFundsMemberhttp://www.sec.gov/CIK0000040554duration2012-01-01T00:00:002012-06-30T00:00:00falsefalsePrivate Equity And Real Estate Funds [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_PrivateEquityAndRealEstateFundsMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$41falseUSDtruefalse$AS_OF_Dec31_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_PrivateEquityAndRealEstateFundsMemberhttp://www.sec.gov/CIK0000040554instant2012-12-31T00:00:000001-01-01T00:00:00falsefalsePrivate Equity And Real Estate Funds [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_PrivateEquityAndRealEstateFundsMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$42falseUSDtruefalse$FROM_Apr01_2013_TO_Jun30_2013_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_RealEstateEquityPropertiesAndInvestmentsMemberhttp://www.sec.gov/CIK0000040554duration2013-04-01T00:00:002013-06-30T00:00:00falsefalseReal Estate Equity Properties And Investments [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_RealEstateEquityPropertiesAndInvestmentsMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$43falseUSDtruefalse$FROM_Apr01_2012_TO_Jun30_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_RealEstateEquityPropertiesAndInvestmentsMemberhttp://www.sec.gov/CIK0000040554duration2012-04-01T00:00:002012-06-30T00:00:00falsefalseReal Estate Equity Properties And Investments [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_RealEstateEquityPropertiesAndInvestmentsMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$44falseUSDtruefalse$FROM_Jan01_2013_TO_Jun30_2013_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_RealEstateEquityPropertiesAndInvestmentsMemberhttp://www.sec.gov/CIK0000040554duration2013-01-01T00:00:002013-06-30T00:00:00falsefalseReal Estate Equity Properties And Investments [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_RealEstateEquityPropertiesAndInvestmentsMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$45falseUSDtruefalse$FROM_Jan01_2012_TO_Jun30_2012_gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxis_RealEstateEquityPropertiesAndInvestmentsMemberhttp://www.sec.gov/CIK0000040554duration2012-01-01T00:00:002012-06-30T00:00:00falsefalseReal Estate Equity Properties And Investments [Member]gecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisxbrldihttp://xbrl.org/2006/xbrldigecc_RealEstateEquityPropertiesAndInvestmentsMembergecc_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1false4gecc_FairValueOfSecuritiesTransferredBetweenLevelOneAndLevelTwogecc_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse20000002USD$falsetruefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalse45falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe fair value amount of securities transferred between level 1 and level 2 classification during the period.No definition available.false22false4gecc_CumulativeGainLossAdjustmentForNonPerformanceRiskgecc_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse-14000000-14falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse-14000000-14falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse-15000000-15falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26truefalsefalse-14000000-14falsefalsefalse27falsefalsefalse00falsefalsefalse28truefalsefalse-15000000-15falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalse45falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis item represents the cumulative gain or loss adjustment for non-performance risk included in fair value of derivatives.No definition available.false23false4us-gaap_InvestmentsFairValueDisclosureus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24truefalsefalse9300000093falsefalsefalse25truefalsefalse8300000083falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalse45falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investment securities as of the balance sheet date which may include marketable securities, derivative financial instruments, and investments accounted for under the equity method.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 13
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Available-for-Sale Securities
-URI http://asc.fasb.org/extlink&oid=6505594
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 12
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Trading Securities
-URI http://asc.fasb.org/extlink&oid=6526789
Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558
Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 1
-Subparagraph a, f, g
-Article 7
Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 35
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=16383099&loc=d3e24584-111560
false24false4gecc_CashAccrualsNotIncludedInScheduleAssetsMeasuredForFairValueOnRecurringBasisgecc_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse60000006falsefalsefalse2truefalsefalse20000002falsefalsefalse3truefalsefalse60000006falsefalsefalse4truefalsefalse20000002falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalse45falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis item represents cash accruals on derivatives included in the Level 3 rollforward, but not reflected in the schedule of assets measured at fair value on a recurring basis.No definition available.false25false4gecc_FairValueAssetsMeasuredOnNonRecurringBasisgecc_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse16110000001611falsefalsefalse2truefalsefalse24120000002412falsefalsefalse3truefalsefalse16110000001611falsefalsefalse4truefalsefalse24120000002412falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14truefalsefalse778000000778falsefalsefalse15truefalsefalse313000000313falsefalsefalse16truefalsefalse22840000002284falsefalsefalse17truefalsefalse21820000002182falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37truefalsefalse2200000022falsefalsefalse38falsefalsefalse00falsefalsefalse39truefalsefalse2200000022falsefalsefalse40falsefalsefalse00falsefalsefalse41truefalsefalse8400000084falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalse45falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis item represents the fair value of classes of assets remeasured at fair value on a non recurring basis during the period.No definition available.false26false4gecc_AdjustmentsToAssetsMeasuredAtFairValueOnNonRecurringBasisgecc_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6truefalsefalse-157000000-157falsefalsefalse7truefalsefalse-38000000-38falsefalsefalse8truefalsefalse-220000000-220falsefalsefalse9truefalsefalse-58000000-58falsefalsefalse10truefalsefalse-253000000-253falsefalsefalse11truefalsefalse-106000000-106falsefalsefalse12truefalsefalse-593000000-593falsefalsefalse13truefalsefalse-245000000-245falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37truefalsefalse-2000000-2falsefalsefalse38truefalsefalse-1000000-1falsefalsefalse39truefalsefalse-5000000-5falsefalsefalse40truefalsefalse-2000000-2falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalse45falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis item represents the fair value adjustments to assets measured at fair value on a non recurring basis.No definition available.false27false4us-gaap_ImpairmentOfLongLivedAssetsHeldForUseus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42truefalsefalse-51000000-51falsefalsefalse43truefalsefalse-6000000-6falsefalsefalse44truefalsefalse-274000000-274falsefalsefalse45truefalsefalse-56000000-56falsefalsefalsexbrli:monetaryItemTypemonetaryThe aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2420-110228
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230
Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 26
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 958
-SubTopic 225
-Section 45
-Paragraph 11
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6743430&loc=d3e92212-112881
Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Impairment
-URI http://asc.fasb.org/extlink&oid=6515133
Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 144
-Paragraph 7, 25
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
false28false4us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValueus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse28550000002855falsefalsefalse2truefalsefalse29900000002990falsefalsefalse3truefalsefalse28550000002855falsefalsefalse4truefalsefalse29900000002990falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18truefalsefalse9300000093falsefalsefalse19truefalsefalse9100000091falsefalsefalse20truefalsefalse8300000083falsefalsefalse21truefalsefalse3100000031falsefalsefalse22truefalsefalse3400000034falsefalsefalse23truefalsefalse3500000035falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26truefalsefalse170000000170falsefalsefalse27truefalsefalse170000000170falsefalsefalse28truefalsefalse262000000262falsefalsefalse29truefalsefalse136000000136falsefalsefalse30truefalsefalse117000000117falsefalsefalse31truefalsefalse141000000141falsefalsefalse32truefalsefalse438000000438falsefalsefalse33truefalsefalse409000000409falsefalsefalse34truefalsefalse409000000409falsefalsefalse35truefalsefalse390000000390falsefalsefalse36truefalsefalse388000000388falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalse45falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
false29false4gecc_IndividuallyInsignificantRecurringFairValueMeasurementsgecc_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse179000000179falsefalsefalse2truefalsefalse168000000168falsefalsefalse3truefalsefalse179000000179falsefalsefalse4truefalsefalse168000000168falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalse45falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRecurring fair value measurements that are individually insignificant which utilize a number of different unobservable inputs not subject to meaningful aggregationNo definition available.false210false4gecc_IndividuallyInsignificantNonrecurringFairValueMeasurementsgecc_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse378000000378USD$falsetruefalse2truefalsefalse285000000285USD$falsetruefalse3truefalsefalse378000000378USD$falsetruefalse4truefalsefalse285000000285USD$falsetruefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalse13falsefalsefalse00falsefalsefalse14falsefalsefalse00falsefalsefalse15falsefalsefalse00falsefalsefalse16falsefalsefalse00falsefalsefalse17falsefalsefalse00falsefalsefalse18falsefalsefalse00falsefalsefalse19falsefalsefalse00falsefalsefalse20falsefalsefalse00falsefalsefalse21falsefalsefalse00falsefalsefalse22falsefalsefalse00falsefalsefalse23falsefalsefalse00falsefalsefalse24falsefalsefalse00falsefalsefalse25falsefalsefalse00falsefalsefalse26falsefalsefalse00falsefalsefalse27falsefalsefalse00falsefalsefalse28falsefalsefalse00falsefalsefalse29falsefalsefalse00falsefalsefalse30falsefalsefalse00falsefalsefalse31falsefalsefalse00falsefalsefalse32falsefalsefalse00falsefalsefalse33falsefalsefalse00falsefalsefalse34falsefalsefalse00falsefalsefalse35falsefalsefalse00falsefalsefalse36falsefalsefalse00falsefalsefalse37falsefalsefalse00falsefalsefalse38falsefalsefalse00falsefalsefalse39falsefalsefalse00falsefalsefalse40falsefalsefalse00falsefalsefalse41falsefalsefalse00falsefalsefalse42falsefalsefalse00falsefalsefalse43falsefalsefalse00falsefalsefalse44falsefalsefalse00falsefalsefalse45falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryNon-recurring fair value measurements that are individually insignificant which utilize a number of different unobservable inputs not subject to meaningful aggregationNo definition available.false2falseFair Value Measurements (Parenthetical) (Details) (USD $)MillionsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.gecc.com/role/DisclosureFairValueMeasurementsParentheticalDetails4510