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Goodwill (Tables)
12 Months Ended
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Goodwill
Goodwill balances by business segment at December 31, 2017 and 2016 were:
DOLLARS IN MILLIONS
 
2017
 
2016
Property & Casualty Insurance
 
$
103.6

 
$
103.6

Life & Health Insurance
 
219.4

 
219.4

Total
 
$
323.0

 
$
323.0