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Derivative Instruments and Hedging Activities (Foreign Currency Derivatives) (Details) In Millions, unless otherwise specified |  | 12 Months Ended
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Dec. 31, 2014 USD ($) | Dec. 31, 2014 Chilean Unidad De Fomento CLF Foreign Exchange Option and Forward USD ($) | Dec. 31, 2014 Chilean Unidad De Fomento CLF Foreign Exchange Option and Forward CLF | Dec. 31, 2014 Chilean Peso CLP Foreign Exchange Option and Forward USD ($) | Dec. 31, 2014 Chilean Peso CLP Foreign Exchange Option and Forward CLP | Dec. 31, 2014 Brazilian Real BRL Foreign Exchange Option and Forward USD ($) | Dec. 31, 2014 Brazilian Real BRL Foreign Exchange Option and Forward BRL | Dec. 31, 2014 Euro EUR Foreign Exchange Option and Forward USD ($) | Dec. 31, 2014 Euro EUR Foreign Exchange Option and Forward EUR (€) | Dec. 31, 2014 Colombian Peso COP Foreign Exchange Option and Forward USD ($) | Dec. 31, 2014 Colombian Peso COP Foreign Exchange Option and Forward COP | Dec. 31, 2014 Argentine Peso ARS Foreign Exchange Option and Forward USD ($) | Dec. 31, 2014 Argentine Peso ARS Foreign Exchange Option and Forward ARS | Dec. 31, 2014 British Pound GBP Foreign Exchange Option and Forward USD ($) | Dec. 31, 2014 British Pound GBP Foreign Exchange Option and Forward GBP (£) | Dec. 31, 2014 Kazakhstani Tenge Embedded Derivative Financial Instruments USD ($) | Dec. 31, 2014 Kazakhstani Tenge Embedded Derivative Financial Instruments KZT
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, notional amount | $ 3,000 invest_DerivativeNotionalAmount | $ 404 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_ChileanUnidadDeFomentoClfMember | 10 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_ChileanUnidadDeFomentoClfMember | $ 123 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_ChileanPesoClpMember | 74,438 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_ChileanPesoClpMember | $ 75 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_BrazilianRealBrlMember | 200 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_BrazilianRealBrlMember | $ 55 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_EuroEurMember | € 45 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_EuroEurMember | $ 29 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_ColombianPesoCopMember | 67,455 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_ColombianPesoCopMember | $ 226 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_ArgentinePesoArsMember | 1,933 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_ArgentinePesoArsMember | $ 25 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_BritishPoundGbpMember | £ 16 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = aes_ForeignExchangeOptionandForwardMember / aes_DerivativeByTypeAxis = aes_BritishPoundGbpMember | $ 23 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = us-gaap_EmbeddedDerivativeFinancialInstrumentsMember / aes_DerivativeByTypeAxis = aes_KazakhstaniTengeKztMember | 4,239 invest_DerivativeNotionalAmount / us-gaap_DerivativeByNatureAxis = us-gaap_EmbeddedDerivativeFinancialInstrumentsMember / aes_DerivativeByTypeAxis = aes_KazakhstaniTengeKztMember
Derivative, average remaining maturity |  | 1 year | 1 year | 1 year | 1 year | 1 year | 1 year | 1 year | 1 year | 1 year | 1 year | 10 years | 10 years | 1 year | 1 year | 1 year | 1 year

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Details
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