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Debt (Subsidiary Non-Recourse Debt in Default or Accelerated) (Details) $ in Millions	Dec. 31, 2020 USD ($)
Debt Details [Line Items]
Debt default amount	$ 276
Materiality threshold for cash distribution from business to Parent	20.00%
JORDAN | Covenant Violation
Debt Details [Line Items]
Debt default amount	$ 7
Net assets	1
PUERTO RICO | Covenant Violation
Debt Details [Line Items]
Debt default amount	238
Net assets	171
AES llumina [Member] | Covenant Violation
Debt Details [Line Items]
Debt default amount	31
Net assets	$ 19

X

- Definition

Amount of outstanding debt or borrowing associated with any securities or credit agreement for which there has been a default in principal, interest, sinking fund, or redemption provisions, or any breach of covenant that existed at the end of the period and subsequently has not been cured.

+ References

No definition available.

+ Details

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Namespace Prefix:	aes_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

-- None. No documentation exists for this element. --

+ References

No definition available.

+ Details

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Namespace Prefix:	aes_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Materiality threshold for cash distribution from business to Parent

+ References

No definition available.

+ Details

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Namespace Prefix:	aes_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of net assets (liabilities).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 30
-Section 50
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Period Type:	instant

X

- Details

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X

- Details

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Period Type:

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- Details

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- Details

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