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Goodwill and Other Intangibles (Tables)
 12 Months Ended
Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes in the carrying value of goodwill by reporting segment
Changes in the carrying value of goodwill during 2012, 2013 and 2014, by reporting segment, are presented in the following table (in millions):
 
Property and
Casualty
 
Annuity
 
Total
Balance at January 1, 2012
$
152

 
$
34

 
$
186

Sale of subsidiary in 2012
—

 
(1
)
 
(1
)
Balance at December 31, 2012 and 2013
152

 
33

 
185

Acquisition of subsidiary in 2014
16

 
—

 
16

Balance at December 31, 2014
$
168

 
$
33

 
$
201