Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Computation of Earnings (Loss) Per Share

Earnings (loss) per share were computed as follows (dollars in millions, except per-share amounts):

	Year Ended December 31,
	2015			2014		2013
Weighted average shares:
Basic weighted average shares outstanding	50,996,297			50,789,173		50,692,942
Effect of dilutive securities outstanding	—			590,525		370,247
Diluted weighted average and equivalent shares outstanding	50,996,297			51,379,698		51,063,189
Net (loss) income	$	(137	)	$	32	$	134
Basic per share amounts:
Basic weighted average shares outstanding	50,996,297			50,789,173		50,692,942
Per share amount	$	(2.69	)	$	0.64	$	2.65
Diluted per share amounts:
Diluted weighted average shares outstanding	50,996,297			51,379,698		51,063,189
Per share amount	$	(2.69	)	$	0.63	$	2.63

Potentially Dilutive Securities Excluded from Earnings (Loss) Per Share Calculation

These excluded outstanding options, awards and warrants are as follows:

	Year Ended December 31,
	2015	2014	2013
Potentially dilutive shares	1,421,506	175,902	168,472