Debt - Subsidiary Non-recourse Debt in Default or Accelerated (Details) $ in Millions	Mar. 31, 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	$ 315
Covenant Violation [Member] | PUERTO RICO
Nonrecourse Debt Default [Line Items]
Net Assets	150
Debt Default Amount	278
Covenant Violation [Member] | AES llumina [Member]
Nonrecourse Debt Default [Line Items]
Net Assets	64
Debt Default Amount	32
Covenant Violation [Member] | JORDAN
Nonrecourse Debt Default [Line Items]
Net Assets	2	[1]
Debt Default Amount	$ 5	[1]

[1] Classified as current held-for-sale liability on the Condensed Consolidated Balance Sheets.