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Deferred Policy Acquisition Costs Level 3 (Tables)
 12 Months Ended
Dec. 31, 2017
Deferred Policy Acquisition Costs Disclosures [Abstract]  
Deferred Policy Acquisition Costs [Table Text Block]
Changes in the DAC Balance
 
For the years ended December 31,
 
2017
2016
2015
Balance, beginning of period
$
463

$
542

$
521

Deferred costs
2

7

7

Amortization — DAC
(51
)
(40
)
(82
)
Amortization — Unlock benefit (charge), pre-tax
3

(74
)
13

Adjustments to unrealized gains and losses on securities AFS and other
(12
)
28

83

Balance, end of period
$
405

$
463

$
542