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Benefit Plans (Impact of One Point Change in Assumptions) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Defined Benefit Plan Assumptions Sensitivity To Changes [Abstract]
Increase of 1% in the discount rate	$ (4)
Decrease of 1% in the discount rate	4
Increase of 1% in the long-term rate of return on plan assets	(10)
Decrease of 1% in the long-term rate of return on plan assets	$ 10

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- Definition

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

+ References

No definition available.

+ Details

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

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- Definition

Represents the impact on pension expense that would result from a one percentage point decrease in the discount rate assumptions for defined benefit pension plans

+ References

No definition available.

+ Details

Name:	aes_DefinedBenefitPlanEffectOfOnePercentDecreaseInDiscountRateOnPensionExpense
Namespace Prefix:	aes_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the impact on pension expense that would result from a one percentage point decrease in the long-term rate of return on plan asset assumptions for defined benefit pension plans

+ References

No definition available.

+ Details

Name:	aes_DefinedBenefitPlanEffectOfOnePercentDecreaseInRateOfReturnOnPensionExpense
Namespace Prefix:	aes_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the impact on pension expense that would result from a one percentage point increase in the discount rate assumptions for defined benefit pension plans

+ References

No definition available.

+ Details

Name:	aes_DefinedBenefitPlanEffectOfOnePercentIncreaseInDiscountRateOnPensionExpense
Namespace Prefix:	aes_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the impact on pension expense that would result from a one percentage point increase in the long-term rate of return on plan asset assumptions for defined benefit pension plans

+ References

No definition available.

+ Details

Name:	aes_DefinedBenefitPlanEffectOfOnePercentIncreaseInRateOfReturnOnPensionExpense
Namespace Prefix:	aes_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration