Debt (Non-Recourse Debt Carrying Amounts and Terms) (Details) - USD ($) $ in Millions		3 Months Ended	9 Months Ended	12 Months Ended
		Mar. 31, 2022	Sep. 30, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 14, 2022	Dec. 13, 2022
Unamortized Discounts [Member]
Debt Instrument [Line Items]
Non-Recourse Debt				$ 309	$ 214
Non-recourse Debt, excluding Finance Lease Liabilities				19,429	14,811
Non-recourse Debt Current Maturities	[1]			(1,752)	(1,361)
Non-recourse Debt, excluding Finance Lease Liabilities, Noncurrent	[1]			17,677	13,450
Derivative, notional amount				1,300
Finance Lease, Liability, Noncurrent				169	128
Finance Lease, Liability, Current				6	6
Gain (Loss) on Extinguishment of Debt				(15)	(78)	$ (186)
Proceeds From Issuance Of Nonrecourse Debt				5,788	1,644	4,680
Repayments of Lines of Credit				4,687	2,420	$ 2,479
AES Panama
Debt Instrument [Line Items]
Gain (Loss) on Extinguishment of Debt			$ (16)
AES Clean Energy
Debt Instrument [Line Items]
Available-for-sale Securities, Failed Auction, Value					25
AES Clean Energy | Nonrecourse Debt
Debt Instrument [Line Items]
Gain (Loss) on Extinguishment of Debt				(12)
Proceeds From Issuance Of Nonrecourse Debt				1,153
AES Clean Energy | Revolving Credit Facilities, Initial Commitments
Debt Instrument [Line Items]
Debt face amount				1,300
Line of Credit Facility, Increase (Decrease), Net				964
AES Hispanola Holdings BV | Nonrecourse Debt
Debt Instrument [Line Items]
Gain (Loss) on Extinguishment of Debt		$ 0
Proceeds From Issuance Of Nonrecourse Debt		500
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
Debt Instrument [Line Items]
Gain (Loss) on Extinguishment of Debt		0
Proceeds From Issuance Of Nonrecourse Debt		710
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 Development | 6.55% Senior Notes Due 2047 Amount Borrowed | Senior Notes [Member]
Debt Instrument [Line Items]
Debt face amount				37			$ 37
AES Clean Energy and sPower (Co-Borrowers) | Revolving Credit Facilities, Initial Commitments
Debt Instrument [Line Items]
Debt face amount				2,500	1,200
Line of Credit Facility, Increase (Decrease), Net				1,300
Credit Facility, Commitments Used				$ 1,800
Variable Rate Debt | Bank loans
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage				7.42%
Non-Recourse Debt				$ 3,971	2,345
Variable Rate Debt | Notes and bonds
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage				1.48%
Non-Recourse Debt				$ 2,137	1,121
Variable Rate Debt | Debt to (or guaranteed by) multilateral, export credit agencies or development banks
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	[2]			6.59%
Non-Recourse Debt	[2]			$ 4	79
Variable Rate Debt | Other
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage				6.64%
Non-Recourse Debt				$ 1,234	125
Fixed Rate Debt | Bank loans
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage				6.12%
Non-Recourse Debt				$ 461	359
Fixed Rate Debt | Notes and bonds
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage				5.05%
Non-Recourse Debt				$ 11,130	10,914
Fixed Rate Debt | Debt to (or guaranteed by) multilateral, export credit agencies or development banks
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage	[2]			6.75%
Non-Recourse Debt	[2]			$ 3	3
Fixed Rate Debt | Other
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Effective Percentage				4.95%
Non-Recourse Debt				$ 798	$ 79

[1] Excludes $6 million and $6 million (current) and $169 million and $128 million (noncurrent) finance lease liabilities included in the respective non-recourse debt line items on the Consolidated Balance Sheet as of December 31, 2022 and 2021, respectively. See Note 14—Leases for further information.(3)    Excludes $25 million of failed sale-leaseback transaction liabilities included in the non-recourse debt line items on the Consolidated Balance Sheet as of December 31, 2021.

[2] Multilateral loans include loans funded and guaranteed by bilaterals, multilaterals, development banks and other similar institutions.