Earnings Per Common Share and Share Awards Share-Based Assumptions (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility	36.60%	35.60%
Interest rate	3.70%	3.20%
Yield rate	1.20%	0.60%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life in years	6 years 2 months 12 days	7 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life in years	7 years