Stock-Based Compensation Programs (Tables)

9 Months Ended

Sep. 30, 2017

Stock-Based Compensation Programs

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

	April 2017		January 2017		July 2016		January 2016
Expected dividend yield	1.06	%	0.68	%	0.73	%	0.79	%
Expected stock price volatility	18.89	%	20.49	%	24.14	%	29.25	%
Risk-free interest rate	1.95	%	2.07	%	1.22	%	1.57	%
Expected life of options (in years)	5.94	years	5.94	years	6.10	years	5.94	years