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Organization and Nature of Business - Additional Disclosures (Details)
$ / shares in Units, $ in Millions
12 Months Ended
Sep. 16, 2015
shares
Jul. 01, 2014
USD ($)
$ / shares
shares
Dec. 31, 2015
pipeline
MW
Sep. 21, 2015
May. 12, 2015
Dec. 31, 2014
Schedule of Limited Partnership Activity [Line Items]            
Common units sold to the public | shares 8,375,907 18,687,500        
Common units sold to the public, price per share (in dollars per share) | $ / shares   $ 25        
Proceeds from issuance of common units, net of underwriting discounts, commissions and structuring fees | $   $ 438        
Noncontrolling interest, percent ownership by noncontrolling owners       22.60% 22.20%  
Number of natural gas pipeline assets acquired | pipeline     7      
Wind and Solar Generating Facilities [Member]            
Schedule of Limited Partnership Activity [Line Items]            
Renewable energy assets, power capacity (megawatts) | MW     989      
NextEra Energy Equity Partners, LP [Member] | NEP OpCo [Member]            
Schedule of Limited Partnership Activity [Line Items]            
Payments to acquire limited partner interests | $   $ 288        
Common units purchased | shares   12,291,593        
NEP OpCo [Member] | NEP OpCo [Member]            
Schedule of Limited Partnership Activity [Line Items]            
Payments to acquire limited partner interests | $   $ 150        
Common units purchased | shares   6,395,907        
NEP OpCo [Member]            
Schedule of Limited Partnership Activity [Line Items]            
Noncontrolling interest, percent ownership     23.20%     20.10%
Noncontrolling interest, percent ownership by noncontrolling owners     76.80%     79.90%