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Commitments (Long-Term Purchase Commitments) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Electricity Purchase Contracts |  |  |
Long-Term Purchase Commitment [Line Items] |  |  |
Purchases Under Long Term Contracts | $ 2,665 | $ 2,819 | $ 2,463
Future Commitments 2014 | 2,793 |  |
Future Commitments 2015 | 2,792 |  |
Future Commitments 2016 | 2,808 |  |
Future Commitments 2017 | 2,403 |  |
Future Commitments 2018 | 2,538 |  |
Future Commitments Thereafter | 27,831 |  |
Future Commitments Total | 41,165 |  |
Fuel Purchase Contracts |  |  |
Long-Term Purchase Commitment [Line Items] |  |  |
Purchases Under Long Term Contracts | 1,590 | 1,832 | 1,577
Future Commitments 2014 | 1,274 |  |
Future Commitments 2015 | 718 |  |
Future Commitments 2016 | 437 |  |
Future Commitments 2017 | 432 |  |
Future Commitments 2018 | 434 |  |
Future Commitments Thereafter | 3,451 |  |
Future Commitments Total | 6,746 |  |
Other Purchase Contracts |  |  |
Long-Term Purchase Commitment [Line Items] |  |  |
Purchases Under Long Term Contracts | 1,743 | 1,637 | 1,515
Future Commitments 2014 | 1,526 |  |
Future Commitments 2015 | 1,326 |  |
Future Commitments 2016 | 975 |  |
Future Commitments 2017 | 674 |  |
Future Commitments 2018 | 576 |  |
Future Commitments Thereafter | 5,419 |  |
Future Commitments Total | $ 10,496 |  |

X
- Definition The total minimum amount the entity agreed to spend under the long-term purchase commitment + References No definition available. + Details
Name: | aes_LongTermPurchaseCommitment
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The actual amount the entity purchased under the long-term purchase commitment + References No definition available. + Details
Name: | aes_LongTermPurchaseCommitmentAmountActual
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment, which payments are due after the fifth year following the balance sheet date + References No definition available. + Details
Name: | aes_LongTermPurchaseCommitmentThereafter
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment, which payments are due in the Fifth year following the balance sheet date + References No definition available. + Details
Name: | aes_LongTermPurchaseCommitmentWithinFiveYears
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment, which payments are due in the fourth year following the balance sheet date + References No definition available. + Details
Name: | aes_LongTermPurchaseCommitmentWithinFourYears
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment, which payments are due within one year of the balance sheet date + References No definition available. + Details
Name: | aes_LongTermPurchaseCommitmentWithinOneYear
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment, which payments are due in the third year following the balance sheet date + References No definition available. + Details
Name: | aes_LongTermPurchaseCommitmentWithinThreeYears
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment, which payments are due in the second year following the balance sheet date + References No definition available. + Details
Name: | aes_LongTermPurchaseCommitmentWithinTwoYears
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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