XML 78 R38.htm IDEA: XBRL DOCUMENT v3.2.0.727
Acquisitions (Purchase Price Allocation) (Details) - USD ($)
$ in Millions
Jun. 30, 2015
Dec. 31, 2014
Business Acquisition [Line Items]    
Goodwill $ 7,234 $ 7,205
Connecticut Operations [Member]    
Business Acquisition [Line Items]    
Current assets 74  
Property, plant and equipment 1,455  
Goodwill 883  
Other intangibles - customer list 570  
Current liabilities (98)  
Deferred income taxes (647)  
Other liabilities (219)  
Total net assets acquired $ 2,018