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Subsequent Events (Details) - Subsequent Event [Member] - AES Tiete [Domain] $ in Millions | Aug. 05, 2020 USD ($)
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Subsequent Event [Line Items] |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Acquired Additional Interest | 18.50%
Payments to Acquire Additional Interest in Subsidiaries | $ 250
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest after Acquisition | 42.90%

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- Definition Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Acquired Additional Interest + References No definition available. + Details
Name: | aes_ConsolidationLessthanWhollyOwnedSubsidiaryParentOwnershipInterestAcquiredAdditionalInterest
Namespace Prefix: | aes_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest after Acquisition + References No definition available. + Details
Name: | aes_ConsolidationLessthanWhollyOwnedSubsidiaryParentOwnershipInterestafterAcquisition
Namespace Prefix: | aes_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition The cash outflow associated with the purchase of noncontrolling interest during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | dei_LegalEntityAxis=aes_AESTieteDomain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |