XML 74 R96.htm IDEA: XBRL DOCUMENT v2.4.0.6
Reserve for Life-Contingent Contract Benefits and Contractholder Funds (Details 4) (Variable annuities, USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Variable annuity contracts with guarantees    
Account balances of separate accounts with guarantees, invested in equity, fixed income and balanced mutual funds $ 5,230,000,000 $ 5,540,000,000
Account balances of separate accounts with guarantees, invested in money market mutual funds 721,000,000 837,000,000
In the event of death
   
Variable annuity contracts with guarantees    
Separate account value in the event of death 5,947,000,000 6,372,000,000
Net amount at risk in the event of death 1,044,000,000 1,502,000,000
Average attained age of contractholders 67 years 66 years
Liability for guarantees related to income benefits
   
Variable annuity contracts with guarantees    
Separate account value at annuitization 1,416,000,000 1,489,000,000
Net amount at risk at annuitization 418,000,000 574,000,000
Weighted average waiting period until annuitization or guarantee date   1 year
For cumulative periodic withdrawals
   
Variable annuity contracts with guarantees    
Separate account value 532,000,000 587,000,000
Net amount at risk 16,000,000 27,000,000
Accumulation at specified dates
   
Variable annuity contracts with guarantees    
Separate account value 811,000,000 906,000,000
Net amount at risk $ 50,000,000 $ 78,000,000
Weighted average waiting period until annuitization or guarantee date 6 years 6 years