Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

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

Summary of stock option, restricted stock unit and performance share unit activity

A summary of stock option, restricted stock unit and performance share unit grant activity is as follows:

	Nine Months Ended September 30,
	2017			2016
	Shares Granted (In thousands)	Weighted-Average Grant Date Fair Value		Shares Granted (In thousands)	Weighted-Average Grant Date Fair Value
Stock options	708	$	37.45	933	$	31.43
Restricted stock units	302	115.31		346	97.15
Performance share units	55	113.82		150	100.68