Goodwill and Other Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets, Net [Abstract]
Gross Balance	$ 2,691	$ 2,216
Accumulated Amortization	(498)	(434)
Net Balance	2,193	1,782
Indefinite-lived Intangible Assets (Excluding Goodwill)	50	59
Indefinite- lived intangible assets, Amortization	0	0
Intangible Assets, Gross	2,741	2,275
Intangible Assets, Net	2,243	1,841	$ 1,450
Goodwill impairment expense	12	777	0
Goodwill impairment expense	12	777	$ 0
Operating Segments [Member] | AES Andes
Finite-Lived Intangible Assets, Net [Abstract]
Goodwill impairment expense		644
Goodwill impairment expense		644
Land Use Rights [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Indefinite-lived Intangible Assets (Excluding Goodwill)	22	42
Indefinite- lived intangible assets, Amortization	0	0
Transmission Rights [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Indefinite-lived Intangible Assets (Excluding Goodwill)	20	16
Indefinite- lived intangible assets, Amortization	0	0
Other
Finite-Lived Intangible Assets, Net [Abstract]
Indefinite-lived Intangible Assets (Excluding Goodwill)	8	1
Indefinite- lived intangible assets, Amortization	0	0
Computer Software, Intangible Asset [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Gross Balance	696	582
Accumulated Amortization	(324)	(307)
Net Balance	372	275
Emission allowances [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Gross Balance	50	37
Accumulated Amortization	0	0
Net Balance	50	37
Project Development Rights [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Gross Balance	1,222	991
Accumulated Amortization	(43)	(17)
Net Balance	1,179	974
Contracts
Finite-Lived Intangible Assets, Net [Abstract]
Gross Balance	337	342
Accumulated Amortization	(37)	(40)
Net Balance	300	302
Other
Finite-Lived Intangible Assets, Net [Abstract]
Gross Balance	45	37
Accumulated Amortization	(20)	(19)
Net Balance	25	18
Compensation from Concession Agreement
Finite-Lived Intangible Assets, Net [Abstract]
Gross Balance	222	207
Accumulated Amortization	(71)	(50)
Net Balance	151	157
Land Use Rights [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Gross Balance	119	20
Accumulated Amortization	(3)	(1)
Net Balance	$ 116	$ 19