Acquisitions	6 Months Ended
Jun. 30, 2018
Business Combinations [Abstract]
Acquisitions	ACQUISITIONS Guaimbê Solar Complex — In September 2017, AES Tietê executed an investment agreement with Cobra do Brasil to provide approximately $120 million of non-convertible debentures in project financing for the construction of photovoltaic solar plants in Brazil. As of June 30, 2018, $67 million of non-convertible debentures have been executed and distributed to the project. Upon completion of the project, expected in the third quarter of 2018, and subject to the solar plants’ compliance with certain technical specifications defined in the agreement, Tietê expects to acquire the solar complex in exchange for the non-convertible debentures and an additional investment of approximately $45 million. Alto Sertão II — In the first quarter of 2018, the Company finalized the purchase price allocation related to the acquisition of Alto Sertão II. There were no significant adjustments made to the preliminary purchase price allocation recorded in the third quarter of 2017 when the acquisition was completed. The assets acquired and liabilities assumed at the acquisition date were recorded at fair value, including a contingent liability for earn-out payments of $18 million, based on the final purchase price allocation at March 31, 2018. Subsequent changes to the fair value of the earn-out payments will be reflected in earnings.

Acquisitions

6 Months Ended

Jun. 30, 2018

ACQUISITIONS

Guaimbê Solar Complex — In September 2017, AES Tietê executed an investment agreement with Cobra do Brasil to provide approximately $120 million of non-convertible debentures in project financing for the construction of photovoltaic solar plants in Brazil. As of June 30, 2018, $67 million of non-convertible debentures have been executed and distributed to the project. Upon completion of the project, expected in the third quarter of 2018, and subject to the solar plants’ compliance with certain technical specifications defined in the agreement, Tietê expects to acquire the solar complex in exchange for the non-convertible debentures and an additional investment of approximately $45 million.

Alto Sertão II — In the first quarter of 2018, the Company finalized the purchase price allocation related to the acquisition of Alto Sertão II. There were no significant adjustments made to the preliminary purchase price allocation recorded in the third quarter of 2017 when the acquisition was completed. The assets acquired and liabilities assumed at the acquisition date were recorded at fair value, including a contingent liability for earn-out payments of $18 million, based on the final purchase price allocation at March 31, 2018. Subsequent changes to the fair value of the earn-out payments will be reflected in earnings.