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v3.22.1

Subsequent Events (Details) - $ / shares | Mar. 31, 2022 | Mar. 31, 2021 | Mar. 04, 2021
--- | --- | --- | ---
Subsequent Event [Line Items] |  |  |
Equity Method Investment, Ownership Percentage | 10.00% |  |
Equity Unit, Shares Issued |  | 10,430,500 |
Shares Issued, Price Per Share | $ 25.87 |  | $ 25.88
AES Brasil [Domain] |  |  |
Subsequent Event [Line Items] |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 45.30% | 1.20% |
AES Brasil [Domain] |  |  |
Subsequent Event [Line Items] |  |  |
Equity Method Investment, Ownership Percentage |  | 100.00% |

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- Definition Equity Unit, Shares Issued + References No definition available. + Details
Name: | aes_EquityUnitSharesIssued
Namespace Prefix: | aes_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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Balance Type: | na
Period Type: | instant

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- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Per share or per unit amount of equity securities issued. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

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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: | srt_OwnershipAxis=aes_AESBrasilDomain
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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