Retirement Plans (Tables)

9 Months Ended

Sep. 30, 2014

Retirement Plans [Abstract]

Net Periodic Benefit Cost

	Pension Benefits
	For the three months ended				For the nine months ended
	September 30,				September 30,
	2014		2013		2014		2013
($ in thousands)
Components of net periodic pension benefit cost
Service cost	$	9,170	$	12,141	$	29,050	$	37,809
Interest cost on projected benefit obligation		18,997		18,827		58,645		56,587
Expected return on plan assets		(23,195)		(23,585)		(70,219)		(72,765)
Amortization of prior service cost /(credit)		11		2		33		6
Amortization of unrecognized loss		4,398		10,798		14,036		30,942
Net periodic pension benefit cost		9,381		18,183		31,545		52,579
Pension settlement costs		-		40,309		-		40,309
Total periodic pension benefit cost	$	9,381	$	58,492	$	31,545	$	92,888

	Postretirement Benefits
	Other Than Pensions (OPEB)
	For the three months ended				For the nine months ended
	September 30,				September 30,
	2014		2013		2014		2013
($ in thousands)
Components of net periodic postretirement benefit cost
Service cost	$	2,408	$	3,088	$	7,514	$	9,446
Interest cost on projected benefit obligation		5,470		4,181		15,046		13,061
Expected return on plan assets		(23)		(25)		(37)		(111)
Amortization of prior service cost/(credit)		(890)		(1,526)		(2,670)		(4,576)
Amortization of unrecognized loss		449		1,695		1,893		6,151
Net periodic postretirement benefit cost	$	7,414	$	7,413	$	21,746	$	23,971