Company Restructuring (Tables)

9 Months Ended

Sep. 30, 2013

Company Restructuring

Schedule of changes in the restructuring liability

($ in millions)		Employee costs		Exit costs		Total liability
Balance as of December 31, 2012	$	6	$	3	$	9
Expense incurred		40		4		44
Adjustments to liability		(1)		—		(1)
Payments applied against liability		(21)		(4)		(25)
Balance as of September 30, 2013	$	24	$	3	$	27