Company Restructuring (Tables)

6 Months Ended

Jun. 30, 2016

Restructuring and Related Activities [Abstract]

Schedule of changes in the restructuring liability

The following table presents changes in the restructuring liability during the six months ended June 30, 2016.

($ in millions)	Employee costs			Exit costs		Total liability
Balance as of December 31, 2015	$	1		$	1	$	2
Expense incurred	6			—		6
Adjustments to liability	—			—		—
Payments applied against liability	(3		)	—		(3		)
Balance as of June 30, 2016	$	4		$	1	$	5