Statutory Net Income and Surplus and Dividend Restrictions (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Stat [Abstract]      
Statuatory Net Income $ 553 $ 591 $ 589
Statuatory Surplus 2,387 2,211  
Capacity for STAT Dividend 656    
Statuatory Dividend $ 423