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Borrowings and Bank Deposits (Footnote) (Details) (USD $) In Millions, unless otherwise specified
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12 Months Ended |
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Dec. 31, 2014
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Dec. 31, 2013
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Feb. 13, 2015
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Oct. 31, 2014
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Sep. 30, 2014
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Aug. 05, 2014
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| Borrowings And Bank Deposits [Line Items] |
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| Long-term borrowings (Note 8) |
$ 187,991us-gaap_LongTermDebtAndCapitalLeaseObligations |
$ 210,279us-gaap_LongTermDebtAndCapitalLeaseObligations |
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| Secured Debt |
6,017us-gaap_SecuredDebt |
9,468us-gaap_SecuredDebt |
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| Bank deposits (Note 8) |
62,839us-gaap_Deposits |
53,361us-gaap_Deposits |
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| Short-term borrowings (Note 8) |
68,780us-gaap_ShortTermBorrowings |
77,298us-gaap_ShortTermBorrowings |
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| Non Recourse Borrowings Of Consolidated Securitization Entities |
29,938gecc_NonRecourseBorrowingsOfConsolidatedSecuritizationEntities |
30,124gecc_NonRecourseBorrowingsOfConsolidatedSecuritizationEntities |
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| Subsidiary Issuer [Member] |
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| Borrowings And Bank Deposits [Line Items] |
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| Proceeds from Issuance of Unsecured Debt |
8,000us-gaap_ProceedsFromIssuanceOfUnsecuredDebt / dei_LegalEntityAxis = us-gaap_SubsidiaryIssuerMember |
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| Unsecured Long-term Debt, Noncurrent |
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1,000us-gaap_UnsecuredLongTermDebt / dei_LegalEntityAxis = us-gaap_SubsidiaryIssuerMember |
750us-gaap_UnsecuredLongTermDebt / dei_LegalEntityAxis = us-gaap_SubsidiaryIssuerMember |
3,593us-gaap_UnsecuredLongTermDebt / dei_LegalEntityAxis = us-gaap_SubsidiaryIssuerMember |
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| Guaranteed investment contracts [Member] |
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| Borrowings And Bank Deposits [Line Items] |
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| Long-term debt, current maturities |
439us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent / us-gaap_LongtermDebtTypeAxis = gecc_GuaranteedInvestmentContractsMember |
481us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent / us-gaap_LongtermDebtTypeAxis = gecc_GuaranteedInvestmentContractsMember |
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| Subordinated Notes Guaranteed By GE [Member] |
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| Borrowings And Bank Deposits [Line Items] |
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| Long-term borrowings (Note 8) |
300us-gaap_LongTermDebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = gecc_SubordinatedNotesGuaranteedByGeMember |
300us-gaap_LongTermDebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = gecc_SubordinatedNotesGuaranteedByGeMember |
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| Long-term Debt [Member] | Subsidiary Issuer [Member] |
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| Borrowings And Bank Deposits [Line Items] |
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| Unsecured Long-term Debt, Noncurrent |
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8,245us-gaap_UnsecuredLongTermDebt / dei_LegalEntityAxis = us-gaap_SubsidiaryIssuerMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LongTermDebtMember |
| Subordinated Debenture [Member] |
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| Borrowings And Bank Deposits [Line Items] |
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| Long-term borrowings (Note 8) |
2,794us-gaap_LongTermDebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = gecc_SubordinatedDebentureMember |
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| PTL [Member] |
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| Borrowings And Bank Deposits [Line Items] |
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| Long-term borrowings (Note 8) |
700us-gaap_LongTermDebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = gecc_PtlMember |
700us-gaap_LongTermDebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = gecc_PtlMember |
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| Synchrony Financial [Member] |
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| Borrowings And Bank Deposits [Line Items] |
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| Long-term borrowings (Note 8) |
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3,593us-gaap_LongTermDebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = gecc_SynchronyFinancialMember |
| Non US Commercial Paper [Member] |
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| Borrowings And Bank Deposits [Line Items] |
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| Bank deposits (Note 8) |
10,258us-gaap_Deposits / us-gaap_ShortTermDebtTypeAxis = gecc_NonUsCommercialPaperMember |
13,614us-gaap_Deposits / us-gaap_ShortTermDebtTypeAxis = gecc_NonUsCommercialPaperMember |
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| Certificates of Deposit [Member] |
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| Borrowings And Bank Deposits [Line Items] |
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| Secured Long-term Debt, Noncurrent |
22,848us-gaap_SecuredLongTermDebt / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CertificatesOfDepositMember |
18,275us-gaap_SecuredLongTermDebt / us-gaap_CashAndCashEquivalentsAxis = us-gaap_CertificatesOfDepositMember |
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| Non Recourse [Member] |
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| Borrowings And Bank Deposits [Line Items] |
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| Secured Debt |
$ 2,312us-gaap_SecuredDebt / us-gaap_DebtInstrumentAxis = gecc_NonRecourseMember |
$ 2,868us-gaap_SecuredDebt / us-gaap_DebtInstrumentAxis = gecc_NonRecourseMember |
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