XML 15 R48.htm IDEA: XBRL DOCUMENT v2.4.0.8
Fair Value Measurements (Fair Value of Long-Term Debt Recorded at Carrying Value) (Details) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Fair Value of Long-Term Debt Recorded at Carrying Value    
Carrying Value $ 10,837 $ 10,426
Fair Value 12,134 11,084
Southern California Edison
   
Fair Value of Long-Term Debt Recorded at Carrying Value    
Carrying Value 10,023 10,022
Fair Value $ 11,295 $ 10,656