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Related Party Transactions (Tables) | 12 Months Ended
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Dec. 31, 2012
Related Party Transactions Tables [Abstract] |
Schedule of Related Party Transactions [Table Text Block] |
|  |  | Years Ended December 31,
|  |  | 2012 |  | 2011 |  | 2010
|  |  | (in millions)
Revenue - Non-Regulated |  | $ | 926 |  | $ | 736 |  | $ | 686
Revenue - Regulated |  |  | 37 |  |  | 39 |  |  | 26
Cost of Sale - Non-Regulated |  |  | 63 |  |  | 77 |  |  | 36
Interest expense |  |  | 8 |  |  | 4 |  |  | 2
Other income |  |  | 4 |  |  | 6 |  |  | -
Schedule of Related Party Receivables Payables [Table Text Block] |
|  | 2012 |  | 2011
|  | (in millions)
Receivables from related parties |  | $ | 178 |  | $ | 164
Payables to related parties |  |  | 7 |  |  | 12
|  | 2012 |  | 2011
|  | (in millions)
Receivables from related parties |  | $ | 178 |  | $ | 164
Payables to related parties |  |  | 7 |  |  | 12

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- Details
Name: | aes_RelatedPartyTransactionsTablesAbstract
Namespace Prefix: | aes_
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Period Type: | duration

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- Definition Tabular disclosure of related party receivables and payables. + References No definition available. + Details
Name: | aes_ScheduleOfRelatedPartyReceivablesPayablesTableTextBlock
Namespace Prefix: | aes_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
Name: | us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration