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Debt (Tables) | 3 Months Ended
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Mar. 31, 2018
Debt Disclosure [Abstract] |
Schedule of Non-recourse debt [Table Text Block] | During the three months ended March 31, 2018, the Company’s subsidiaries had the following significant debt transactions:
Subsidiary |  | Issuances |  | Repayments |  | Gain (Loss) on Extinguishment of Debt
Tietê |  | $ | 385 |  |  | $ | (231 | ) |  | $ | — |
Southland |  | 194 |  |  | — |  |  | — |
Total |  | $ | 579 |  |  | $ | (231 | ) |  | $ | — |
Debt In Default | The current portion of non-recourse debt includes the following subsidiary debt in default as of March 31, 2018 (in millions).
Subsidiary |  | Primary Nature of Default |  | Debt in Default |  | Net Assets
Alto Maipo |  | Covenant |  | $ | 629 |  |  | $ | 359 |
AES Puerto Rico |  | Covenant |  | 334 |  |  | 124 |
AES Ilumina |  | Covenant |  | 35 |  |  | 16 |
|  |  |  | $ | 998 |  |  |

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- Definition This table represents the disclosure (by subsidiary) of the nature and amount of the debt in default or accelerated and associated net assets at the balance sheet date. + References No definition available. + Details
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