Reinsurance (Tables)

12 Months Ended

Dec. 31, 2022

Reinsurance Disclosures [Abstract]

Effects of Reinsurance

Reinsurance activity related to both our premium income and changes in reserves for future benefits are as follows:

	Year Ended December 31
	2022		2021		2020
	(in millions of dollars)
Direct Premium Income	$	9,900.5	$	9,742.8	$	9,621.9
Reinsurance Assumed	78.7		90.6		94.1
Reinsurance Ceded	(355.8)		(352.4)		(337.9)
Net Premium Income	$	9,623.4	$	9,481.0	$	9,378.1
Ceded Benefits and Change in Reserves for Future Benefits	$	1,034.6	$	862.5	$	628.8