Long-Term Incentive Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended		6 Months Ended
	Oct. 14, 2014	Jan. 02, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)					30,972
Options granted strike price ($ per share)		$ 10.25			$ 8.25
Unrecognized compensation expense related to restricted stock and stock option awards			$ 2		$ 2
Unrecognized compensation expense, period for recognition					2 years 01 month
Long-term compensation expense				$ 1		$ 3
Invested Capital	$ 2,290
Period to determine average trading prices for invested capital	20 days
Stock-based compensation expense			$ 0	$ 1	$ 1	$ 2
Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (shares)	271,000
Options granted strike price ($ per share)	$ 7.54
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares of common stock authorized for issuance under the incentive plan (in shares)			1,264,911		1,264,911
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award agreement triggering award to fully vest on date of change in control, period prior to change in control date					6 months
Award agreement triggering award to fully vest on date of employee service termination, period following change in control date					2 years
Outstanding units (in shares)			143,754		143,754		213,246
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award agreement triggering award to fully vest on date of change in control, period prior to change in control date					6 months
Award agreement triggering award to fully vest on date of employee service termination, period following change in control date					2 years
Stock options awards expiration period					10 years
Award vesting period					4 years
Expected life (in years)					6 years 5 months 27 days
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense			$ (1)		$ 1
Unrecognized compensation expense			$ 1		$ 1
Expected life (in years)	3 years 2 months 16 days				2 years 6 months
Performance Shares | Value Creation Program (VCP)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares of common stock authorized for issuance under the incentive plan (in shares)	700,000
Amount authorized as a percentage of value creation	7.00%
Outstanding units (in shares)			645,000		645,000
Performance Shares | Value Creation Program Two (VCP2)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding units (in shares)			33,590		33,590