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Texas Pipeline Business Acquisition (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 01, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Business Acquisition [Line Items]        
Acquisitions related costs   $ 26 $ 0 $ 0
NET Holdings Management, LLC [Member]        
Business Acquisition [Line Items]        
Debt assumed $ 706      
Subsidiary of NextEra Energy Partners [Member] | NET Holdings Management, LLC [Member]        
Business Acquisition [Line Items]        
Membership interests acquired 100.00%      
Noncontrolling interest ownership percentage 10.00%      
Aggregate purchase price $ 2,100      
Cash consideration 934      
Debt assumed 706      
Working capital adjustments 2      
Additional capital expenditures $ 100      
Period goodwill is expected to be deductible (in years) 15 years      
Acquisition holdbacks $ 186      
NextEra Energy Partners [Member] | NET Holdings Management, LLC [Member]        
Business Acquisition [Line Items]        
Acquisitions related costs   $ 13    
Indemnity Holdback [Member] | Subsidiary of NextEra Energy Partners [Member] | NET Holdings Management, LLC [Member]        
Business Acquisition [Line Items]        
Contingent consideration liability 200      
Decrease in contingent consideration liability 10      
Holdback Payable [Member] | Subsidiary of NextEra Energy Partners [Member] | NET Holdings Management, LLC [Member]        
Business Acquisition [Line Items]        
Contingent consideration liability $ 200