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Schedule I - Condensed Financial Information of Parent (Guarantees and Letters of Credit) (Details) (USD $) | 12 Months Ended
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Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items] |
Obligations maximum exposure, total | $ 825,000,000
Obligations number of agreements | 36
Guarantees |
Condensed Financial Statements, Captions [Line Items] |
Obligations maximum exposure, total | 661,000,000
Obligations number of agreements | 21
Letter of Credit |
Condensed Financial Statements, Captions [Line Items] |
Obligations maximum exposure, total | 1,000,000
Obligations number of agreements | 3
Cash Collateralized Letters Of Credit |
Condensed Financial Statements, Captions [Line Items] |
Obligations maximum exposure, total | 163,000,000
Obligations number of agreements | 12
Parent Company |
Condensed Financial Statements, Captions [Line Items] |
Letter of credit, fee range minimum | 0.20%
Letter of credit, fee range maximum | 3.25%
Parent Company | Guarantees |
Condensed Financial Statements, Captions [Line Items] |
Obligations maximum exposure, total | 661,000,000
Obligations number of agreements | 21
Parent Company | Guarantees | Minimum |
Condensed Financial Statements, Captions [Line Items] |
Obligations, individual exposures (minimum less than $1 million) | 1,000,000
Parent Company | Guarantees | Maximum |
Condensed Financial Statements, Captions [Line Items] |
Obligations, individual exposures (minimum less than $1 million) | 280,000,000
Parent Company | Letter of Credit |
Condensed Financial Statements, Captions [Line Items] |
Obligations number of agreements | 3
Letters of credit outstanding | 1,000,000
Parent Company | Letter of Credit | Minimum |
Condensed Financial Statements, Captions [Line Items] |
Obligations, individual exposures (minimum less than $1 million) | 1,000,000
Parent Company | Cash Collateralized Letters Of Credit |
Condensed Financial Statements, Captions [Line Items] |
Obligations maximum exposure, total | 163,000,000
Obligations number of agreements | 12
Parent Company | Cash Collateralized Letters Of Credit | Minimum |
Condensed Financial Statements, Captions [Line Items] |
Obligations, individual exposures (minimum less than $1 million) | 1,000,000
Parent Company | Cash Collateralized Letters Of Credit | Maximum |
Condensed Financial Statements, Captions [Line Items] |
Obligations, individual exposures (minimum less than $1 million) | $ 109,000,000

X
- Definition The maximum of the per annum range of letter of credit fees as a percent of the outstanding amount. + References No definition available. + Details
Name: | aes_LetterOfCreditFeeRangeMaximum
Namespace Prefix: | aes_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The minimum of the per annum range of letter of credit fees as a percent of the outstanding amount. + References No definition available. + Details
Name: | aes_LetterOfCreditFeeRangeMinimum
Namespace Prefix: | aes_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total maximum potential amount of future payments (undiscounted) the Parent Company could be required to make under the obligation or each group of similar obligations before reduction for potential recoveries under recourse or collateralization provisions. + References No definition available. + Details
Name: | aes_ObligationsMaximumExposureTotal
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Obligations, Maximum Individual Exposures + References No definition available. + Details
Name: | aes_ObligationsMaximumIndividualExposures
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of agreements under which the Parent Company has contingent contractual obligations. + References No definition available. + Details
Name: | aes_ObligationsNumberOfAgreements
Namespace Prefix: | aes_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_CondensedFinancialStatementsCaptionsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant