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Schedule I - Condensed Financial Information of Parent (Guarantees and Letters of Credit) (Details) | 12 Months Ended
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Dec. 31, 2015 USD ($) agreement
Condensed Financial Statements, Captions [Line Items] |
Obligations maximum exposure, total | $ 490,000,000
Obligations number of agreements | agreement | 26
Parent Company |
Condensed Financial Statements, Captions [Line Items] |
Letter of credit, fee range minimum | 0.20%
Letter of credit, fee range maximum | 2.50%
Guarantees |
Condensed Financial Statements, Captions [Line Items] |
Obligations maximum exposure, total | $ 369,000,000
Obligations number of agreements | agreement | 14
Guarantees | Parent Company |
Condensed Financial Statements, Captions [Line Items] |
Obligations, Minimum Individual Exposures | $ 1,000,000
Obligations, individual exposures (minimum less than $1 million) | $ 53,000,000
Guarantees and Asset Sale Related Indemnities (Combined) [Member] |
Condensed Financial Statements, Captions [Line Items] |
Obligations number of agreements | agreement | 15
Guarantees and Asset Sale Related Indemnities (Combined) [Member] | Parent Company |
Condensed Financial Statements, Captions [Line Items] |
Obligations maximum exposure, total | $ 396,000,000
Letter of Credit |
Condensed Financial Statements, Captions [Line Items] |
Obligations number of agreements | agreement | 7
Letters of credit outstanding | $ 62,000,000
Letter of Credit | Parent Company |
Condensed Financial Statements, Captions [Line Items] |
Obligations, Minimum Individual Exposures | 1,000,000
Obligations, individual exposures (minimum less than $1 million) | 29,000,000
Cash Collateralized Letters Of Credit |
Condensed Financial Statements, Captions [Line Items] |
Obligations maximum exposure, total | $ 32,000,000
Obligations number of agreements | agreement | 4
Cash Collateralized Letters Of Credit | Parent Company |
Condensed Financial Statements, Captions [Line Items] |
Obligations maximum exposure, total | $ 32,000,000
Obligations, Minimum Individual Exposures | 1,000,000
Obligations, individual exposures (minimum less than $1 million) | $ 15,000,000

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
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Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Obligations, Minimum Individual Exposures, Less Than Stated Amount + References No definition available. + Details
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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
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Namespace Prefix: | aes_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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- Details
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- Details
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- Details
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