Retirement and Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2011

Components of Net Periodic Pension Cost

The following table summarizes the components of net periodic pension cost:

		For the three months		For the nine months
		ended September 30,		ended September 30,
($ in millions)		2011	2010	2011	2010
Service cost	$	-	-	-	-
Interest cost		3	3	9	9
Expected return on assets		(4)	(4)	(12)	(10)
Amortization of actuarial loss		3	3	8	9
Amortization of net prior service cost		-	-	-	-
Settlement		-	-	-	-
Net periodic pension cost	$	2	2	5	8