Redeemable Stocks of Subsidiaries (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Temporary Equity [Line Items]
Redeemable Noncontrolling Interest, Equity, Carrying Amount	$ 1,502	$ 1,464
IPALCO Enterprises, Inc. [Member]
Temporary Equity [Line Items]
Redeemable Noncontrolling Interest, Equity, Common, Carrying Amount	772	773
Clean Energy
Temporary Equity [Line Items]
Redeemable Noncontrolling Interest, Equity, Common, Carrying Amount	583	544
Potengi
Temporary Equity [Line Items]
Redeemable Noncontrolling Interest, Equity, Preferred, Carrying Amount	18	18
AES Clean Energy Development
Temporary Equity [Line Items]
Redeemable Noncontrolling Interest, Equity, Common, Carrying Amount	$ 129	$ 129

As of the reporting date, the carrying amount of noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. The noncontrolling interest holder's ownership (or holders' ownership) may be in the form of common shares (regardless of class), limited partnership units (regardless of class), non-preferential membership interests, or any other form of common equity regardless of investee entity legal form.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Subparagraph (12)(c)
-Section S99
-Paragraph 3A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480244/480-10-S99-3A

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Subparagraph (16)(c)
-Paragraph 3A
-Section S99
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480244/480-10-S99-3A

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 480
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3A
-Subparagraph (15)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480244/480-10-S99-3A

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 480
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3A
-Subparagraph (14)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480244/480-10-S99-3A

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant