Risks and Uncertainties (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Unusual Risk or Uncertainty [Line Items]
Debt Default Amount	$ 342
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	1,086	$ 1,114
PUERTO RICO | Covenant Violation [Member]
Unusual Risk or Uncertainty [Line Items]
Debt Default Amount	303
AES llumina [Member] | Covenant Violation [Member]
Unusual Risk or Uncertainty [Line Items]
Debt Default Amount	$ 33