Number of agreements under which the Parent Company has contingent contractual obligations.

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Reversal of Cost of Goods Sold associated with previously recognized compensation to be received from the concession extension that was updated based on new regulations (ANEEL) published in December 2020

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.

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Minimum period the individual is required to perform services to be fully vested under the deferred compensation arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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Describe the approximate term of the guarantee or each group of similar guarantees.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Amount of loss contingency liability.

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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Amount after accumulated amortization of finite-lived and indefinite-lived intangible assets classified as other.

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Contingencies (Loss Contingencies) (Details) $ in Millions	3 Months Ended	12 Months Ended
Contingencies (Loss Contingencies) (Details) $ in Millions	Dec. 31, 2022 USD ($) agreement	Dec. 31, 2022 USD ($) agreement	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Loss Contingencies [Line Items]
Guarantor Obligations, Term		less than one year to no more than 16 years
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 2,693	$ 2,693
Obligations number of agreements \| agreement	140	140
Litigation Contingencies
Commitments and Contingencies (see Notes 12 and 13)
Environmental Remediation Contingency [Domain]
Environmental Contingencies
Liability recorded for projected environmental remediation costs	10	10	4
Guarantee Obligations [Member]
Loss Contingencies [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 2,406	$ 2,406
Obligations number of agreements \| agreement	81	81
Litigation
Litigation Contingencies
Aggregate reserves for claims deemed both probable and reasonably estimable	$ 22	$ 22	$ 23
Parent Company [Member] \| Guarantees [Member]
Loss Contingencies [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 2,400	$ 2,400
Obligations number of agreements \| agreement	81	81
AES Tiete [Domain] \| Compensation from Concession Agreement
Litigation Contingencies
Deferred Compensation Arrangement with Individual, Requisite Service Period	2 years 8 months 12 days
AES Tiete \| Compensation from Concession Agreement
Litigation Contingencies
Reversal of Cost of Goods Sold				$ 6
Other Intangible Assets, Net				184
Commitments and Contingencies (see Notes 12 and 13)				$ 190
Unsecured Debt [Member] \| Financial Standby Letter of Credit [Member]
Loss Contingencies [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 128	$ 128
Obligations number of agreements \| agreement	39	39
Secured Debt [Member] \| Financial Standby Letter of Credit [Member]
Loss Contingencies [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 34	$ 34
Obligations number of agreements \| agreement	16	16
Secured Debt [Member] \| Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 123	$ 123
Obligations number of agreements \| agreement	2	2
Secured Debt [Member] \| Surety Bond
Loss Contingencies [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 2	$ 2
Obligations number of agreements \| agreement	2	2
Minimum [Member] \| Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage		1.00%
Minimum [Member] \| Guarantee Obligations [Member]
Environmental Contingencies
Loss Contingency, Estimate of Possible Loss	$ 1	$ 1
Minimum [Member] \| Litigation
Environmental Contingencies
Loss Contingency, Estimate of Possible Loss	51	51
Minimum [Member] \| Unsecured Debt [Member] \| Financial Standby Letter of Credit [Member]
Environmental Contingencies
Loss Contingency, Estimate of Possible Loss	1	1
Minimum [Member] \| Secured Debt [Member] \| Financial Standby Letter of Credit [Member]
Environmental Contingencies
Loss Contingency, Estimate of Possible Loss	1	1
Minimum [Member] \| Secured Debt [Member] \| Surety Bond
Environmental Contingencies
Loss Contingency, Estimate of Possible Loss	1	1
Minimum [Member] \| Line of Credit \| Financial Standby Letter of Credit [Member]
Environmental Contingencies
Loss Contingency, Estimate of Possible Loss	59	$ 59
Maximum [Member] \| Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage		3.00%
Maximum [Member] \| Environmental Remediation Contingency [Domain]
Environmental Contingencies
Loss Contingency, Estimate of Possible Loss	12	$ 12
Maximum [Member] \| Guarantee Obligations [Member]
Environmental Contingencies
Loss Contingency, Estimate of Possible Loss	400	400
Maximum [Member] \| Litigation
Environmental Contingencies
Loss Contingency, Estimate of Possible Loss	88	88
Maximum [Member] \| Unsecured Debt [Member] \| Financial Standby Letter of Credit [Member]
Environmental Contingencies
Loss Contingency, Estimate of Possible Loss	36	36
Maximum [Member] \| Secured Debt [Member] \| Financial Standby Letter of Credit [Member]
Environmental Contingencies
Loss Contingency, Estimate of Possible Loss	15	15
Maximum [Member] \| Secured Debt [Member] \| Surety Bond
Environmental Contingencies
Loss Contingency, Estimate of Possible Loss	1	1
Maximum [Member] \| Line of Credit \| Financial Standby Letter of Credit [Member]
Environmental Contingencies
Loss Contingency, Estimate of Possible Loss	$ 64	$ 64