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Schedule I - Condensed Financial Information of Parent (Senior Notes and Junior Subordinated Notes) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 5,258 aes_RecourseDebtTotal | 5,669 aes_RecourseDebtTotal
Less: Current maturities | (151)aes_RecourseDebtCurrent | (118)aes_RecourseDebtCurrent
Recourse Debt Non Current | 5,107 aes_RecourseDebtNonCurrent | 5,551 aes_RecourseDebtNonCurrent
7.75% Senior Unsecured Note Due 2014 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 0 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2014Member | 110 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2014Member
7.75% Senior Unsecured Note Due 2015 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 151 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2015Member | 356 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2015Member
9.75% Senior Unsecured Note Due 2016 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 164 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote975Due2016Member | 369 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote975Due2016Member
8.00% Senior Unsecured Note Due 2017 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 525 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2017Member | 1,150 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2017Member
Senior Secured Term Loan LIBOR Plus 2.75% Due 2018 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 0 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorSecuredTermLoanLIBORPlus275Due2018Member | 799 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorSecuredTermLoanLIBORPlus275Due2018Member
Senior Unsecured Note LIBOR plus 3% due 2019 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 775 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNoteLIBORplus3due2019Member |
8.00% Senior Unsecured Note Due 2020 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 625 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2020Member | 625 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2020Member
7.38% Senior Unsecured Note Due 2021 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 1,000 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote7375Due2021Member | 1,000 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote7375Due2021Member
4.88% Senior Unsecured Note Due 2023 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 750 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote4875Due2023Member | 750 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote4875Due2023Member
5.50% Senior Unsecured Note Due 2024 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 750 aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_A5.50SeniorUnsecuredNoteDue2024Member |
Unamortized Discounts |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total |  | (7)aes_RecourseDebtTotal / aes_RecourseDebtByInstrumentAxis = aes_UnamortizedDiscountsMember
Recourse Debt |  |
Condensed Financial Statements, Captions [Line Items] |  |
Stated interest rate | 6.75%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember |
Junior subordinated notes and debentures payable | 517 us-gaap_JuniorSubordinatedLongTermNotes / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember | 517 us-gaap_JuniorSubordinatedLongTermNotes / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember
Recourse Debt | 7.75% Senior Unsecured Note Due 2014 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 7.75%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2014Member | 7.75%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2014Member
Recourse Debt | 7.75% Senior Unsecured Note Due 2015 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 7.75%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2015Member | 7.75%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2015Member
Recourse Debt | 9.75% Senior Unsecured Note Due 2016 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 9.75%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote975Due2016Member | 9.75%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote975Due2016Member
Recourse Debt | 8.00% Senior Unsecured Note Due 2017 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 8.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2017Member | 8.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2017Member
Recourse Debt | 8.00% Senior Unsecured Note Due 2020 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 8.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2020Member | 8.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2020Member
Recourse Debt | 7.38% Senior Unsecured Note Due 2021 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 7.38%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote7375Due2021Member | 7.38%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote7375Due2021Member
Recourse Debt | 4.88% Senior Unsecured Note Due 2023 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 4.88%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote4875Due2023Member | 4.88%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote4875Due2023Member
Recourse Debt | 5.50% Senior Unsecured Note Due 2024 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 5.50%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_A5.50SeniorUnsecuredNoteDue2024Member |
Recourse Debt | LIBOR | Senior Secured Term Loan LIBOR Plus 2.75% Due 2018 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Basis spread on variable rate | 2.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorSecuredTermLoanLIBORPlus275Due2018Member / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember | 2.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorSecuredTermLoanLIBORPlus275Due2018Member / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember
Recourse Debt | LIBOR | Senior Unsecured Note LIBOR plus 3% due 2019 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Basis spread on variable rate | 3.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNoteLIBORplus3due2019Member / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |
Parent Company |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 5,258 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Junior subordinated notes and debentures payable | 517 us-gaap_JuniorSubordinatedLongTermNotes / dei_LegalEntityAxis = us-gaap_ParentCompanyMember | 517 us-gaap_JuniorSubordinatedLongTermNotes / dei_LegalEntityAxis = us-gaap_ParentCompanyMember
Long-term Debt of Registrant, Maturities, Repayments of Principal, Fiscal Year Maturity [Abstract] |  |
2015 | 151 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
2016 | 162 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
2017 | 525 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
2018 | 0 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
2019 | 773 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Thereafter | 3,647 us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive / dei_LegalEntityAxis = us-gaap_ParentCompanyMember |
Parent Company | 7.75% Senior Unsecured Note Due 2014 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 0 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2014Member | 110 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2014Member
Parent Company | 7.75% Senior Unsecured Note Due 2015 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 151 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2015Member | 356 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2015Member
Parent Company | 9.75% Senior Unsecured Note Due 2016 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 164 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote975Due2016Member | 369 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote975Due2016Member
Parent Company | 8.00% Senior Unsecured Note Due 2017 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 525 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2017Member | 1,150 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2017Member
Parent Company | Senior Secured Term Loan LIBOR Plus 2.75% Due 2018 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 0 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorSecuredTermLoanLIBORPlus275Due2018Member | 799 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorSecuredTermLoanLIBORPlus275Due2018Member
Parent Company | Senior Unsecured Note LIBOR plus 3% due 2019 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 775 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNoteLIBORplus3due2019Member |
Parent Company | 8.00% Senior Unsecured Note Due 2020 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 625 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2020Member | 625 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2020Member
Parent Company | 7.38% Senior Unsecured Note Due 2021 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 1,000 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote7375Due2021Member | 1,000 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote7375Due2021Member
Parent Company | 4.88% Senior Unsecured Note Due 2023 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 750 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote4875Due2023Member | 750 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote4875Due2023Member
Parent Company | 5.50% Senior Unsecured Note Due 2024 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 750 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_A5.50SeniorUnsecuredNoteDue2024Member |
Parent Company | Unamortized Discounts |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 1 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_UnamortizedDiscountsMember | (7)aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / aes_RecourseDebtByInstrumentAxis = aes_UnamortizedDiscountsMember
Parent Company | Recourse Debt | 7.75% Senior Unsecured Note Due 2014 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 7.75%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2014Member | 7.75%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2014Member
Parent Company | Recourse Debt | 7.75% Senior Unsecured Note Due 2015 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 7.75%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2015Member | 7.75%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote775Due2015Member
Parent Company | Recourse Debt | 9.75% Senior Unsecured Note Due 2016 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 9.75%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote975Due2016Member | 9.75%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote975Due2016Member
Parent Company | Recourse Debt | 8.00% Senior Unsecured Note Due 2017 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 8.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2017Member | 8.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2017Member
Parent Company | Recourse Debt | 8.00% Senior Unsecured Note Due 2020 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate |  | 8.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote800Due2020Member
Parent Company | Recourse Debt | 7.38% Senior Unsecured Note Due 2021 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 7.38%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote7375Due2021Member | 7.38%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote7375Due2021Member
Parent Company | Recourse Debt | 4.88% Senior Unsecured Note Due 2023 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Interest Rate | 4.875%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote4875Due2023Member | 4.88%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNote4875Due2023Member
Parent Company | Recourse Debt | LIBOR | Senior Secured Term Loan LIBOR Plus 2.75% Due 2018 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Basis spread on variable rate | 2.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorSecuredTermLoanLIBORPlus275Due2018Member / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember | 2.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorSecuredTermLoanLIBORPlus275Due2018Member / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember
Parent Company | Recourse Debt | LIBOR | Senior Unsecured Note LIBOR plus 3% due 2019 |  |
Condensed Financial Statements, Captions [Line Items] |  |
Basis spread on variable rate | 3.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtMember / aes_RecourseDebtByInstrumentAxis = aes_SeniorUnsecuredNoteLIBORplus3due2019Member / us-gaap_VariableRateAxis = us-gaap_LondonInterbankOfferedRateLIBORMember |
Parent Company | Recourse Debt Excluding Junior Subordinated Debt |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 4,741 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtExcludingJuniorSubordinatedDebtMember | 5,152 aes_RecourseDebtTotal / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtExcludingJuniorSubordinatedDebtMember
Less: Current maturities | (151)aes_RecourseDebtCurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtExcludingJuniorSubordinatedDebtMember | (118)aes_RecourseDebtCurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtExcludingJuniorSubordinatedDebtMember
Recourse Debt Non Current | 4,590 aes_RecourseDebtNonCurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtExcludingJuniorSubordinatedDebtMember | 5,034 aes_RecourseDebtNonCurrent / dei_LegalEntityAxis = us-gaap_ParentCompanyMember / us-gaap_LongtermDebtTypeAxis = aes_RecourseDebtExcludingJuniorSubordinatedDebtMember

X
- Definition The current portion of the entity's recourse debt. Recourse debt is direct borrowings by the Parent Company that is structurally subordinate to the affiliates' non-recourse debt. + References No definition available. + Details
Name: | aes_RecourseDebtCurrent
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Balance Type: | credit
Period Type: | instant

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- Definition The non-current portion of the entity's recourse debt. Recourse debt is direct borrowings by the Parent Company that is structurally subordinate to the affiliates' non-recourse debt. + References No definition available. + Details
Name: | aes_RecourseDebtNonCurrent
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Recourse debt is direct borrowings by the Parent Company that is structurally subordinate to the affiliates non-recourse debt. + References No definition available. + Details
Name: | aes_RecourseDebtTotal
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Balance Type: | na
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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