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Sales Inducements
 6 Months Ended
Jun. 30, 2011
Sales Inducements [Abstract]  
Sales Inducements
8. Sales Inducements
Changes in deferred sales inducement activity were as follows for the six months ended June 30:
                 
    2011     2010  
Balance, January 1
  $ 459     $ 438  
Sales inducements deferred
    9       15  
Amortization
    (20 )     (13 )
Amortization — Unlock charge, pre-tax
    (8 )     (15 )
 
           
Balance, June 30
  $ 440     $ 425