Stock Compensation Plans - Schedule of Fair Value Option Pricing Model Assumptions (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Stock Compensation Plans
Expected dividends per share	$ 1.60	$ 1.44	$ 1.36
Risk-free interest rate	3.77%	1.24%	0.35%
Expected life of options	6 years	5 years	5 years
Expected volatility	23.70%	28.33%	29.32%
Weighted average fair value of options granted during year	$ 13.46	$ 11.56	$ 7.30