Asset Retirement Obligation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Asset Retirement Obligation	$ 778	$ 757	$ 606
Asset Retirement Obligation, Liabilities Incurred	40	97
Asset Retirement Obligation, Assumed in Acquisition	0	15
Asset Retirement Obligation, Liabilities Settled	14	29
Asset Retirement Obligation, Accretion Expense	31	30
Asset Retirement Obligation, Revision of Estimate	(35)	35
Asset Retirement Obligation, Other	(1)	3
IPL Subsidiary [Member]
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Costs Incurred, Asset Retirement Obligation Incurred	27	34
AES Clean Energy
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Costs Incurred, Asset Retirement Obligation Incurred	27	43
AES Southland [Domain]
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Costs Incurred, Asset Retirement Obligation Incurred	75	51
AES Brasil
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Costs Incurred, Asset Retirement Obligation Incurred	$ 16
AES Brasil [Domain]
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Costs Incurred, Asset Retirement Obligation Incurred		$ 20