Reinsurance (Tables)

12 Months Ended

Dec. 31, 2021

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
	2021		2020		2019
	(in millions of dollars)
Direct Premium Income	$	9,742.8	$	9,621.9	$	9,576.3
Reinsurance Assumed	90.6		94.1		116.5
Reinsurance Ceded	(352.4)		(337.9)		(327.2)
Net Premium Income	$	9,481.0	$	9,378.1	$	9,365.6
Ceded Benefits and Change in Reserves for Future Benefits	$	862.5	$	628.8	$	650.1