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Regulatory Assets and Liabilities Regulatory Assets and Liabilities - by Reportable Segment (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Schedule of Regulatory Assets and Liabilities [Line Items] |  |
Regulatory Assets | $ 961 | $ 1,002
Regulatory Liabilities | $ 877 | $ 1,075

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- Definition [Line Items] for Schedule of Regulatory Assets and Liabilities [Table] + References No definition available. + Details
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Namespace Prefix: | aes_
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Period Type: | duration

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- Definition The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 980 -SubTopic 340 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481878/980-340-50-1 + Details
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Balance Type: | debit
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- Definition The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 980 -SubTopic 405 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481854/980-405-25-1 + Details
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