Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of type and fair value of the stock-based compensation awards granted during the period

The following table illustrates the type and fair value of the stock-based compensation awards granted during the nine months ended September 30, 2017 and 2016, respectively:

	Nine Months Ended September 30, 2017					Nine Months Ended September 30, 2016
	Shares Granted	Weighted-Average Fair Value Per Share		Weighted-Average Grant Date Stock Price		Shares Granted	Weighted-Average Fair Value Per Share		Weighted-Average Grant Date Stock Price
Stock options	2,701,644	$	25.01	$	95.66	4,243,272	$	20.64	$	74.77
RSUs	924,421	$	90.11	$	96.01	1,085,505	$	68.04	$	74.77
PRSUs	437,385	$	86.78	$	95.66	614,347	$	64.71	$	74.77

Schedule providing assumptions used in determining the fair value of stock-based awards

The following table provides the assumptions used in determining the fair value of the stock-based awards for the nine months ended September 30, 2017 and 2016, respectively:

	Grant Year
	2017	2016
Weighted-average dividend yield	3.42%	3.23%
Weighted-average volatility	29.2%	31.1%
Range of volatilities	22.1-33.0%	22.5-33.4%
Range of risk-free interest rates	0.81-2.35%	0.62-1.73%
Weighted-average expected lives	8 years	8 years