v3.5.0.2
Impairments (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jul. 13, 2016
May 13, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
May 12, 2016
Asset Impairment Charges     $ 8     $ 263 $ 123 $ 263  
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net     $ 8     $ 0 147 $ 0  
Residential Solar [Member]                  
Asset Impairment Charges             $ 8    
Petra Nova Parish Holdings [Member]                  
Equity Method Investment, Ownership Percentage     50.00%       50.00%    
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net         $ 140        
Rockford [Member]                  
Percentage of Ownership                 100.00%
Proceeds from Sale of Property, Plant, and Equipment $ 56 $ 55              
Asset Impairment Charges       $ 17          
Deferred Marketing Expenses [Member]                  
Asset Impairment Charges             $ 10    
Mandalay operating unit [Member]                  
Asset Impairment Charges       16          
Ormond Beach operating unit [Member]                  
Asset Impairment Charges       $ 43          
Solar Panels [Member]                  
Asset Impairment Charges             $ 17