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Fair Value Measurements (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Maximum [Member]
Dec. 31, 2013
Life Policy Loans [Member]
Dec. 31, 2012
Life Policy Loans [Member]
Dec. 31, 2013
Deferred Annuities And Structured Settlements [Member]
Dec. 31, 2012
Deferred Annuities And Structured Settlements [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]              
Percentage of investments not priced by a pricing vendor     1.00%        
Percentage of Level 3 assets measured at fair value     1.00%        
Principal amount of debt $ 793,000,000 $ 793,000,000          
Finance receivable 85,000,000 75,000,000   36,000,000 37,000,000    
Loss and loss expense reserves $ 4,311,000,000 $ 4,230,000,000       $ 1,051,000,000 $ 1,043,000,000