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CONTRACTHOLDER BONUS INTEREST CREDITS
 12 Months Ended
Dec. 31, 2016
Contractholder Bonus Interest Credits [Abstract]  
Contractholder Bonus Interest Credits
CONTRACTHOLDER BONUS INTEREST CREDITS AND DEFERRED ACQUISITION COST
Changes in the deferred asset for contractholder bonus interest credits are as follows:
 
December 31,
 
2016
 
2015
 
(In millions)
Balance, beginning of year
$
534

 
$
557

Contractholder bonus interest credits deferred
13

 
17

Amortization charged to income
(43
)
 
(40
)
Balance, End of Year
$
504

 
$
534



Changes in deferred acquisition costs were as follows:
 
December 31,
 
2016
 
2015
 
(In millions)
Balance, beginning of year
$
5,139

 
$
4,801

Capitalization of commissions, sales and issue expenses
594

 
615

Amortization
(881
)
 
(361
)
Change in unrealized investment gains and losses
—

 
84

Balance, End of Year
$
4,852

 
$
5,139