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Investment In and Advances To Affiliates | 3 Months Ended
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Mar. 31, 2018
Investments in and Advances to Affiliates, Schedule of Investments [Abstract] |
INVESTMENTS IN AND ADVANCES TO AFFILIATES | INVESTMENTS IN AND ADVANCES TO AFFILIATES Summarized Financial Information — The following table summarizes financial information of the Company’s 50%-or-less-owned affiliates that are accounted for using the equity method (in millions):
| Three Months Ended March 31,
50%-or-less-Owned Affiliates | 2018 |  | 2017
Revenue | $ | 206 |  |  | $ | 167 |
Operating margin | 28 |  |  | 32 |
Net income | 12 |  |  | 11 |
sPower — In February 2017, the Company and Alberta Investment Management Corporation (“AIMCo”) entered into an agreement to acquire FTP Power LLC (“sPower”). In July 2017, AES closed on the acquisition of its 48% ownership interest in sPower for $461 million. In November 2017, AES acquired an additional 2% ownership interest in sPower for $19 million. As the Company does not control sPower, it is accounted for as an equity method investment. The sPower portfolio includes solar and wind projects in operation, under construction, and in development located in the United States. The sPower equity method investment is reported in the US and Utilities SBU reportable segment. Fluence — In July 2017, the Company entered into a joint venture with Siemens AG to form a global energy storage technology and services company under the name Fluence. On January 1, 2018, Siemens and AES closed on the creation of the joint venture with each party holding a 50% ownership interest. The Company contributed $7 million in cash and $20 million in non-cash assets from the AES Advancion energy storage development business as consideration for the transaction, and received an equity interest in Fluence with a fair value of $50 million. See Note 17—Held-for-sale Businesses and Dispositions for further discussion. As the Company does not control Fluence, it is accounted for as an equity method investment. The Fluence equity method investment is reported as part of Corp and Other.

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- Definition The entire disclosure for the information summarizing investments in and advances to majority-owned subsidiaries, other controlled companies, and other affiliates. It reflects specified information about ownership, financial results from, and financial position in such entities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 + Details
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