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Nature of Business (Yield IPO) (Details 2) - NRG Yield, Inc. | 12 Months Ended
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Dec. 31, 2017
NRG |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Common stock, voting interest | 0.551
Limited partnership, ownership interest | 46.30%
Public Shareholders |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |
Common stock, voting interest | 0.449
Limited partnership, ownership interest | 53.70%

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- Definition Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
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