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Risks and Uncertainties (Details) - USD ($) $ in Millions | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Unusual Risk or Uncertainty [Line Items] |  |
Goodwill, Reporting Unit at Risk, Percentage |  | 10.00%
Goodwill | $ 1,059 | $ 1,059
Debt Default Amount | 306 |
Investments in and advances to affiliates | 802 | $ 966
PUERTO RICO | Covenant Violation [Member] |  |
Unusual Risk or Uncertainty [Line Items] |  |
Debt Default Amount | 268 |
AES llumina [Member] | Covenant Violation [Member] |  |
Unusual Risk or Uncertainty [Line Items] |  |
Debt Default Amount | 32 |
Gener Subsidiary [Member] |  |
Unusual Risk or Uncertainty [Line Items] |  |
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount |  | 3.00%
Goodwill | $ 868 |

X
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