Debt - Subsidiary Non-recourse Debt in Default or Accelerated (Details) $ in Millions	Jun. 30, 2020 USD ($)
Nonrecourse Debt Default [Line Items]
Materiality threshold for cash distribution from business to Parent	20.00%
Debt defaults at risk of causing cross default	0
Debt Default Amount	$ 306
Covenant Violation [Member] | PUERTO RICO
Nonrecourse Debt Default [Line Items]
Net Assets	260
Debt Default Amount	268
Covenant Violation [Member] | AES llumina [Member]
Nonrecourse Debt Default [Line Items]
Net Assets	26
Debt Default Amount	32
Covenant Violation [Member] | JORDAN
Nonrecourse Debt Default [Line Items]
Net Assets	2	[1]
Debt Default Amount	$ 6	[1]

[1] Subsidiary   Primary Nature of Default   Debt in Default   Net Assets AES Puerto Rico   Covenant   $ 268
  $ 260
AES Ilumina (Puerto Rico)   Covenant   32
  26
AES Jordan Solar   Covenant   6
  2
Total       $ 306