Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

Stock Based Compensation

Restricted shares and restricted share units activity

		Weighted
	Number of	Average
	Restricted	Grant-Date
	Shares	Fair Value
	(thousands)	(per share)
Nonvested at January 1, 2017	836	$	19.44
Granted	601		20.01
Vested	(255)		21.30
Forfeited	(74)		18.31
Nonvested at December 31, 2017	1,108		19.39
Awards granted during 2016		$	15.70
Awards granted during 2015		$	22.69

	2017		2016		2015
Total fair value of shares vested	$	5	$	6	$	4

Performance vested restricted share unit activity

	Number of Performance	Weighted Average
	Vested Restricted Shares	Grant-Date Fair Value
	Units (thousands)	(per unit)
Nonvested at January 1, 2017	1,355	$	20.76
Granted	528		19.57
Vested	(66)		33.39
Forfeited/Cancelled	(223)		29.23
Nonvested at December 31, 2017	1,594		18.66
Awards granted during 2016		$	15.10
Awards granted during 2015		$	23.63