v3.8.0.1
Deferred Policy Acquisition Costs
 12 Months Ended
Dec. 31, 2017
Deferred Policy Acquisition Costs Disclosures [Abstract]  
Deferred Policy Acquisition Costs
DEFERRED POLICY ACQUISITION COSTS
 
The balances of and changes in DAC as of and for the years ended December 31, are as follows:
 
 
2017
 
2016
 
2015
 
(in millions)
Balance, beginning of year
$
17,661

 
$
16,718

 
$
15,971

Capitalization of commissions, sales and issue expenses
2,820

 
2,845

 
2,653

Amortization—Impact of assumption and experience unlocking and true-ups
247

 
445

 
280

Amortization—All other
(1,827
)
 
(2,322
)
 
(2,400
)
Change in unrealized investment gains and losses
(190
)
 
(199
)
 
477

Foreign currency translation and other
281

 
174

 
(263
)
Balance, end of year
$
18,992

 
$
17,661

 
$
16,718