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Schedule I - Condensed Financial Information of Parent (Senior Notes and Junior Subordinated Notes) (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | $ 3,754 | $ 3,447
Recourse Debt Non Current | 3,729 | 3,446
Parent Company |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 3,729 |
Debt Maturity Year One [Member] |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 25 |
Debt Maturity Year One [Member] | Parent Company |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 0 |
Debt Maturity Year Two [Member] |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 0 |
Debt Maturity Year Two [Member] | Parent Company |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 0 |
Debt Maturity Year Three [Member] |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 0 |
Debt Maturity Year Three [Member] | Parent Company |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 0 |
Debt Maturity Year Four [Member] |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 900 |
Debt Maturity Year Four [Member] | Parent Company |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 900 |
Debt Maturity Year Five [Member] |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 1,165 |
Debt Maturity Year Five [Member] | Parent Company |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 1,165 |
Thereafter |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 1,700 |
Thereafter | Parent Company |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Total | 1,700 |
Recourse Debt Excluding Junior Subordinated Debt | Parent Company |  |
Condensed Financial Statements, Captions [Line Items] |  |
Recourse Debt Non Current | $ 3,729 | $ 3,430

X
- Definition The non-current portion of the entity's recourse debt. Recourse debt is direct borrowings by the Parent Company that is structurally subordinate to the affiliates' non-recourse debt. + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

X
- Definition Recourse debt is direct borrowings by the Parent Company that is structurally subordinate to the affiliates non-recourse debt. + References No definition available. + Details
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Namespace Prefix: | aes_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Balance Type: |
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- Details
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Balance Type: |
Period Type: |

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- Details
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Balance Type: |
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- Details
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- Details
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- Details
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