Leases (Tables)

12 Months Ended

Dec. 31, 2022

Leases [Abstract]

Lease, Cost

Operating lease information is as follows:

	Year Ended December 31
	2022			2021			2020
	(in millions of dollars)
Lease Cost
Operating Lease Cost	$	19.6		$	35.2		$	48.6
Sublease Income	(1.1)			(1.0)			(1.3)
Total Lease Cost	$	18.5		$	34.2		$	47.3
Other Information
Cash Paid for Amounts Included in the Measurement of Lease Liabilities	$	23.1		$	29.9		$	30.8
Weighted-Average Remaining Lease Term	6 years			6 years			6 years
Weighted-Average Discount Rate	4.32		%	4.45		%	4.37		%

Lessee, Operating Lease, Liability, Maturity

As of December 31, 2022, aggregate undiscounted minimum lease payments and the reconciliation to our lease liability are as follows (in millions of dollars):

2023	$	18.2
2024	14.4
2025	11.1
2026	9.1
2027	8.3
2028 and Thereafter	17.4
Total	78.5
Less Imputed Interest	10.6
Lease Liability	$	67.9