Debt - Subsidiary Non-recourse Debt in Default or Accelerated (Details) $ in Millions	Mar. 31, 2021 USD ($)
Nonrecourse Debt Default [Line Items]
Debt Default Amount	$ 276
Materiality threshold for cash distribution from business to Parent	20.00%
Debt defaults at risk of causing cross default	0
Covenant Violation [Member] | AES Puerto Rico
Nonrecourse Debt Default [Line Items]
Debt Default Amount	$ 238
Net Assets	(207)
Covenant Violation [Member] | AES llumina [Member]
Nonrecourse Debt Default [Line Items]
Debt Default Amount	31
Net Assets	(24)
Covenant Violation [Member] | JORDAN
Nonrecourse Debt Default [Line Items]
Debt Default Amount	7	[1]
Net Assets	$ (4)	[1]

[1] Subsidiary Primary Nature of DefaultDebt in DefaultNet AssetsAES Puerto RicoCovenant$238 $(207)AES Ilumina (Puerto Rico)Covenant31 24 AES Jordan SolarCovenant7 4 Total$276