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Benefit Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 plan | Dec. 31, 2012 | Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined contribution plan, number of plans | 1 |  |
Defined contribution plan, award vesting period | 5 years |  |
Defined contribution plan contributions | $ 15 | $ 21 | $ 22
Defined benefit plan, number of plans disclosure | 30 |  |
U.S. Defined Benefit Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan, number of plans disclosure | 5 |  |

X
- Definition Represents the number of defined benefit plans covering the employees at certain subsidiaries + References No definition available. + Details
Name: | aes_DefinedBenefitPlanNumberOfPlansDisclosure
Namespace Prefix: | aes_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Defined Contribution Plan, Award Vesting Period + References No definition available. + Details
Name: | aes_DefinedContributionPlanAwardVestingPeriod
Namespace Prefix: | aes_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of the contributions made during the period to defined contribution plans + References No definition available. + Details
Name: | aes_DefinedContributionPlanContributions
Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Defined Contribution Plan, Number of Plans + References No definition available. + Details
Name: | aes_DefinedContributionPlanNumberofPlans
Namespace Prefix: | aes_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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