XML 118 R86.htm IDEA: XBRL DOCUMENT v3.10.0.1
ACQUISTION AND DIVESTITURE ACTIVITY - Sempra Renewables (Details) - Sempra Renewables [Member]
$ in Millions
3 Months Ended
Jul. 10, 2017
USD ($)
Jul. 01, 2016
USD ($)
MW
Dec. 31, 2016
USD ($)
Great Valley Solar [Member]      
Business Acquisition [Line Items]      
Cash consideration (fair value of total consideration) $ 124    
Huron County, Michigan [Member]      
Business Acquisition [Line Items]      
Cash consideration (fair value of total consideration)   $ 18 $ 4
Ownership percentage in consolidated entity   100.00%  
Generating capacity (in mw) | MW   100  
Power purchase agreement term   15 years  
Consideration transferred   $ 22