Debt (Non-Recourse Debt Carrying Amounts and Terms) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended			24 Months Ended
	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2023	Dec. 14, 2022	Dec. 13, 2022
Debt Instrument [Line Items]
Non-recourse Debt, excluding Finance Lease Liabilities		$ 22,144	$ 19,429		$ 22,144
Non-recourse Debt Current Maturities		(3,924)	(1,752)		(3,924)
Non-recourse Debt, excluding Finance Lease Liabilities, Noncurrent		18,220	17,677		18,220
Derivative, notional amount		2,700			2,700
Gain (Loss) on Extinguishment of Debt		(63)	(15)	$ (78)
Proceeds From Issuance Of Nonrecourse Debt		4,521	5,788	1,644
Repayments of Lines of Credit		6,285	4,687	2,420
Non Recourse Debt Non Current		18,482	17,846		18,482
Non-Recourse Debt		(333)	(309)		(333)
Nonrecourse [Member]
Debt Instrument [Line Items]
Finance Lease, Liability, Noncurrent		262	169		262
Finance Lease, Liability, Current		8	6		8
AES Clean Energy | Nonrecourse Debt
Debt Instrument [Line Items]
Proceeds From Issuance Of Nonrecourse Debt		2,654
AES Clean Energy | Revolving Credit Facilities, Initial Commitments
Debt Instrument [Line Items]
Line of Credit Facility, Increase (Decrease), Net		1,000
Credit Facility, Commitments Used		2,300			2,300
AES Hispanola Holdings BV | Nonrecourse Debt
Debt Instrument [Line Items]
Proceeds From Issuance Of Nonrecourse Debt		350
AES Hispanola Holdings BV | JPCB | Nonrecourse Debt
Debt Instrument [Line Items]
Proceeds From Issuance Of Nonrecourse Debt			450
AES Hispanola Holdings BV | Bridge Loan | JPCB
Debt Instrument [Line Items]
Debt face amount			500
Colon | JPCB | Nonrecourse Debt
Debt Instrument [Line Items]
Proceeds From Issuance Of Nonrecourse Debt			50
Mercury Chile Hold Co LLC
Debt Instrument [Line Items]
Proceeds from Contributed Capital	$ 196
Mercury Chile Hold Co LLC | Nonrecourse Debt | Bridge Loan
Debt Instrument [Line Items]
Proceeds From Issuance Of Nonrecourse Debt	350
Mercury Chile Hold Co LLC | 6.5% Senior Notes Due 2027 | Senior Notes [Member]
Debt Instrument [Line Items]
Debt face amount	$ 360
Stated interest rate	6.50%
AES Renewable Holdings
Debt Instrument [Line Items]
Gain (Loss) on Extinguishment of Debt			(12)
AES Renewable Holdings | AES Renewable Holdings Term Loan due 2027 | Nonrecourse Debt
Debt Instrument [Line Items]
Proceeds From Issuance Of Nonrecourse Debt			632
AES Renewable Holdings | AES Renewable Holdings Credit Facilities
Debt Instrument [Line Items]
Repayments of Lines of Credit			692
AES Clean Energy and sPower (Co-Issuers) | 6.55% Senior Notes Due 2047 | Senior Notes [Member]
Debt Instrument [Line Items]
Debt face amount							$ 647
Stated interest rate							6.55%
AES Clean Energy and sPower (Co-Issuers) | 6.55% Senior Notes Due 2047 Amount Borrowed | Senior Notes [Member]
Debt Instrument [Line Items]
Debt face amount						$ 647
AES Clean Energy and sPower (Co-Borrowers) | Revolving Credit Facilities, Initial Commitments
Debt Instrument [Line Items]
Debt face amount		3,800		$ 1,200	3,800
Line of Credit Facility, Increase (Decrease), Net					2,600
Credit Facility, Commitments Used		$ 2,800			$ 2,800
Variable Rate Debt | Bank loans
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		7.39%			7.39%
Non Recourse Debt Non Current		$ 5,568	3,306		$ 5,568
Variable Rate Debt | Notes and bonds
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		4.62%			4.62%
Non Recourse Debt Non Current		$ 1,768	2,137		$ 1,768
Variable Rate Debt | Other
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		11.85%			11.85%
Non Recourse Debt Non Current		$ 31	71		$ 31
Variable Rate Debt | Revolver Borrowings
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		7.18%			7.18%
Non Recourse Debt Non Current		$ 2,356	1,832		$ 2,356
Fixed Rate Debt | Bank loans
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		7.20%			7.20%
Non Recourse Debt Non Current		$ 1,473	461		$ 1,473
Fixed Rate Debt | Notes and bonds
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		5.09%			5.09%
Non Recourse Debt Non Current		$ 11,228	11,130		$ 11,228
Fixed Rate Debt | Other
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage		5.90%			5.90%
Non Recourse Debt Non Current		$ 53	801		$ 53
Fixed Rate Debt | Other | Mong Duong Subsidiary [Member]
Debt Instrument [Line Items]
Non-Recourse Debt ST			$ 756