Stock Based Compensation - Assumptions Used (Details) - Stock options	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Volatility	27.20%	21.10%	19.90%
Dividend yield	0.40%	0.40%	0.40%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	0.80%	0.30%	1.40%
Expected years until exercise	5 years 6 months	5 years 6 months	5 years 6 months
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	1.30%	1.50%	2.60%
Expected years until exercise	8 years	8 years	8 years