Stock-Based Compensation Programs (Tables)

3 Months Ended

Mar. 31, 2018

Stock-Based Compensation Programs

Schedule of weighted average assumptions used for estimating fair values of options

	January 2018		January 2017
Expected dividend yield	1.03	%	0.68	%
Expected stock price volatility	21.98	%	20.49	%
Risk-free interest rate	2.47	%	2.07	%
Expected life of options (in years)	6.10	years	5.94	years