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Schedule V - Valuation and Qualifying Accounts Level 3 (Tables)
 12 Months Ended
Dec. 31, 2016
Valuation and Qualifying Accounts [Abstract]  
Summary of Valuation Allowance [Table Text Block]
 
Balance January 1,
Charged to Costs and Expenses
Write-offs/Payments/Other
Balance December 31,
2016
 
 
 
 
Valuation allowance on mortgage loans
$
19

$
—

$
—

$
19

2015
 
 
 
 
Valuation allowance on mortgage loans
$
15

$
4

$
—

$
19

2014
 
 
 
 
Valuation allowance on mortgage loans
$
12

$
4

$
(1
)
$
15