XML 52 R41.htm IDEA: XBRL DOCUMENT v3.22.1
Investments - Allowance for Credit Loss (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Rollforward of the allowance for credit loss by major security type    
Beginning balance $ 15.5 $ 7.4
Additions for credit losses not previously recorded 1.0 0.3
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period 3.0 2.8
Foreign currency translation adjustment 0.9  
Ending balance 20.4 10.5
Corporate debt securities    
Rollforward of the allowance for credit loss by major security type    
Beginning balance 15.1 0.9
Additions for credit losses not previously recorded 1.0  
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period 3.0  
Foreign currency translation adjustment 0.9  
Ending balance 20.0 0.9
Commercial mortgage-backed securities    
Rollforward of the allowance for credit loss by major security type    
Beginning balance 0.3 4.3
Additions for credit losses not previously recorded   0.3
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period   2.4
Ending balance 0.3 7.0
Collateralized debt obligations    
Rollforward of the allowance for credit loss by major security type    
Beginning balance   2.2
Additional increases (decreases) for credit losses on securities with an allowance recorded in the previous period   0.4
Ending balance   $ 2.6
Other debt obligations    
Rollforward of the allowance for credit loss by major security type    
Beginning balance 0.1  
Ending balance $ 0.1