Share-based Compensation Plans Share-based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2017

Share-based Compensation Plans [Abstract]

Shares-based Compensation Arrangements by Share-based Payment Award, Performance-Based Units and Restricted Stock Units [Table Text Block]

The following table presents the changes in outstanding non-vested PSUs and RSUs activity during 2017.

(in thousands, except per share data)	Number of units		Weighted-average grant date fair value per share
RSUs and PSUs
Outstanding non-vested at January 1, 2017	5,443		$	19.00
Granted	3,280		21.30
Vested	(3,043	)	19.84
Forfeited	(88	)	19.39
Outstanding non-vested at December 31, 2017	5,592		19.89