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Debt (Non-recourse Debt Narrative) (Details) $ in Millions	3 Months Ended				6 Months Ended	9 Months Ended	12 Months Ended			24 Months Ended
	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2024 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) agreement	Dec. 31, 2023 USD ($)	Mar. 31, 2024 USD ($)
Debt Instrument [Line Items]
Loss on extinguishment of debt	$ 1	$ 9			$ 10	$ 11	$ 17	$ 63	$ 15
Restricted cash and debt service reserves							515
Restricted net assets							885
Proceeds From Issuance Of Nonrecourse Debt					3,798	5,199	7,236	4,521	$ 5,788
Restricted Cash Held for Insurance							$ 155	90		$ 90
Materiality threshold for cash distribution from business to Parent							20.00%
Number Of Credit Agreements | agreement									2
Nonrecourse [Member]
Debt Instrument [Line Items]
Restricted cash and debt service reserves							$ 147	341		341
Finance Lease, Liability, Current							18	8		8
Consolidated Variable Interest Entities [Member]
Debt Instrument [Line Items]
Restricted cash and debt service reserves							245
Consolidated Variable Interest Entities [Member] | Nonrecourse [Member]
Debt Instrument [Line Items]
Long-Term Debt							8,200
Short-Term Debt							650
Restricted Cash
Debt Instrument [Line Items]
Restricted cash and debt service reserves							79	158		158
Debt Service Reserves
Debt Instrument [Line Items]
Restricted cash and debt service reserves							$ 68	183		183
AES Clean Energy Development
Debt Instrument [Line Items]
Internal Rate of Return							10
AES Clean Energy Development | Bridge Loan due Dec 2023 | Bridge Loan
Debt Instrument [Line Items]
Debt face amount							$ 500
Debt face amount							500
Corporate and Other
Debt Instrument [Line Items]
Materiality Threshold for Sub Default to Trigger Cross Default							200
TEG TEP
Debt Instrument [Line Items]
Materiality Threshold for Sub Default to Trigger Cross Default							128
Nonrecourse Debt | AES Clean Energy
Debt Instrument [Line Items]
Proceeds From Issuance Of Nonrecourse Debt							3,219
Nonrecourse Debt | AES Andes
Debt Instrument [Line Items]
Proceeds From Issuance Of Nonrecourse Debt							1,248
Nonrecourse Debt | IPL Subsidiary [Member]
Debt Instrument [Line Items]
Proceeds From Issuance Of Nonrecourse Debt							1,450
Senior unsecured notes due 2025 [Member] | AES Indiana | Nonrecourse Debt
Debt Instrument [Line Items]
Debt face amount							400
Proceeds from (Repayments of) Debt	300		$ 100
Debt face amount							400
DPL First Mortgage Bonds Total | Nonrecourse Debt | DPL Subsidiary
Debt Instrument [Line Items]
Proceeds From Issuance Of Nonrecourse Debt							$ 200
DPL First Mortgage Bonds due 2028 | Nonrecourse Debt | DPL Subsidiary
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							5.49%
Proceeds From Issuance Of Nonrecourse Debt							$ 92
DPL First Mortgage Bonds due 2033 | Nonrecourse Debt | DPL Subsidiary
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							5.70%
Proceeds From Issuance Of Nonrecourse Debt							$ 108
Master Indenture Notes | Senior Notes [Member] | AES Clean Energy Development
Debt Instrument [Line Items]
Debt face amount							1,400
Subordinated Liabilities, Period Increase (Decrease)							1,100
Debt face amount							1,400
Master Indenture Notes | Senior Notes [Member] | AES Clean Energy and sPower (Co-Issuers)
Debt Instrument [Line Items]
Debt face amount	842	491			491	842	2,200
Debt face amount	$ 842	$ 491			$ 491	$ 842	2,200
350 Million Credit Agreement Due 2028 | Nonrecourse Debt | AES Hispanola Holdings BV
Debt Instrument [Line Items]
Loss on extinguishment of debt							(1)
350 Million Credit Agreement Due 2028 | Nonrecourse Debt | AES Hispanola Holdings BV | BID
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage											8.85%
Proceeds From Issuance Of Nonrecourse Debt				$ 300
Debt face amount											$ 350
Debt face amount											$ 350
350 Million Credit Agreement Due 2028 | Nonrecourse Debt | Colon | BID
Debt Instrument [Line Items]
Proceeds From Issuance Of Nonrecourse Debt				$ 50
IPL Term Loan due 2024 | IPL Subsidiary [Member] | Nonrecourse Debt
Debt Instrument [Line Items]
Proceeds From Issuance Of Nonrecourse Debt								300
Bellefield Financing Agreement due 2026 | Nonrecourse Debt | AES Clean Energy Development
Debt Instrument [Line Items]
Credit Facility, Commitments Used							394	1,700		1,700
Credit facility, commitments							$ 1,700	$ 2,400		2,400
Bellefield Financing Agreement due 2026 | Senior Notes [Member] | AES Clean Energy Development
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							5.70%
Rexford Bridge Loan due 2024 | AES Renewable Holdings | Nonrecourse Debt
Debt Instrument [Line Items]
Proceeds From Issuance Of Nonrecourse Debt							$ 300
Revolving Credit Facilities, Initial Commitments | AES Clean Energy
Debt Instrument [Line Items]
Credit Facility, Commitments Used							2,900
Line of Credit Facility, Increase (Decrease), Net							638
Revolving Credit Facilities, Initial Commitments | AES Clean Energy and sPower (Co-Borrowers)
Debt Instrument [Line Items]
Debt face amount							3,800		$ 1,200
Credit Facility, Commitments Used							3,100
Line of Credit Facility, Increase (Decrease), Net										$ 2,600
Debt face amount							$ 3,800		$ 1,200
PR Bridge Loan due 2026 | Nonrecourse Debt | AES Puerto Rico
Debt Instrument [Line Items]
Basis spread on variable rate							4.00%
Debt face amount							$ 23
Debt face amount							23
7.125% Senior notes due 2079 | Nonrecourse Debt | AES Andes
Debt Instrument [Line Items]
Loss on extinguishment of debt							$ 8
7.125% Senior notes due 2079 | Senior Notes [Member] | AES Andes
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							7.125%
AES Indiana FM Bonds due 2054 | Nonrecourse Debt | AES Indiana
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage											5.70%
Debt face amount											$ 650
Debt face amount											$ 650
IPALCO Notes due 2034 | Nonrecourse Debt | AES Indiana
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage											5.75%
Debt face amount											$ 400
Debt face amount											$ 400
IPALCO Senior Notes due 2024 | Nonrecourse Debt | AES Indiana
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							3.70%
Repayments of Debt							$ 405
Andes Senior Notes due 2029 | Nonrecourse Debt | AES Andes
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							6.30%
Proceeds From Issuance Of Nonrecourse Debt							$ 500
6.35% Senior notes due 2079 | Senior Notes [Member] | AES Andes
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							6.35%
5.00% Senior notes due 2025 | Senior Notes [Member] | AES Andes
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							5.00%
Andes Junior Notes due 2055 | Nonrecourse Debt | AES Andes
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							8.15%
Proceeds From Issuance Of Nonrecourse Debt							$ 530
PR Senior Secured Bonds due 2028 | Nonrecourse Debt | AES Puerto Rico
Debt Instrument [Line Items]
Debt face amount							112
Debt face amount							$ 112
Preferred Shares in AES Guayama Holdings | Nonrecourse Debt | AES Puerto Rico
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							3.125%
Debt face amount							$ 44
Debt face amount							44
Andes Senior Unsecured Notes due 2025 | Nonrecourse Debt | AES Andes
Debt Instrument [Line Items]
Extinguishment of Debt, Amount							$ 43
PR Series A Bond due 2026 | Nonrecourse Debt | AES Puerto Rico
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							6.625%
Debt face amount							$ 156
Preferred Shares Conversion Option							0.999
Debt face amount							$ 156
AES Indiana Credit Agreement due 2027 | Nonrecourse Debt | AES Indiana
Debt Instrument [Line Items]
Repayments of Debt							350
Andes Senior Unsecured Notes due 2079 | Nonrecourse Debt | AES Andes
Debt Instrument [Line Items]
Extinguishment of Debt, Amount							$ 100
6.81% Senior Notes Due 2047 | Senior Notes [Member] | AES Clean Energy and sPower (Co-Borrowers)
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage							6.81%

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