Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2014

Retirement Plans [Abstract]

Projected Benefit Obligations, Fair Values of Plan Assets and Amounts Recognized in the Balance Sheet

($ in thousands)	2014		2013
Change in projected benefit obligation (PBO)
PBO at beginning of year	$	1,668,726	$	1,944,731
PBO for plans of the Connecticut operations at contracted discount rate		342,667		-
Actuarial adjustment to PBO for plans of the Connecticut operations		4,933		-
Service cost		41,649		47,651
Interest cost		80,476		75,812
Actuarial (gain)/loss		182,074		(180,709)
Benefits paid		(110,237)		(54,151)
Settlements		-		(164,608)
PBO at end of year	$	2,210,288	$	1,668,726
Change in plan assets
Fair value of plan assets at beginning of year	$	1,216,525	$	1,253,666
Fair value of plan assets for the Connecticut operations as of acquisition date		342,667		-
Actual return on plan assets		140,514		119,328
Employer contributions		83,238		62,290
Benefits paid		(110,237)		(54,151)
Settlements		-		(164,608)
Fair value of plan assets at end of year	$	1,672,707	$	1,216,525
Funded status	$	(537,581)	$	(452,201)
Amounts recognized in the consolidated balance sheet
Pension and other postretirement benefits - current	$	(101,557)	$	(100,205)
Pension and other postretirement benefits - noncurrent	$	(436,024)	$	(351,996)
Accumulated other comprehensive loss	$	532,268	$	411,432

Net Periodic Benefit Cost

($ in thousands)	Expected in 2015		2014		2013		2012
Components of total periodic pension benefit cost
Service cost			$	41,649	$	47,651	$	43,688
Interest cost on projected benefit obligation				80,476		75,812		78,027
Expected return on plan assets				(99,273)		(94,695)		(95,777)
Amortization of prior service cost /(credit)	$	45		45		8		(199)
Amortization of unrecognized loss		27,773		19,951		36,930		29,890
Net periodic pension benefit cost				42,848		65,706		55,629
Pension settlement costs				-		44,163		-
Total periodic pension benefit cost			$	42,848	$	109,869	$	55,629

Weighted Average Asset Allocations, By Asset Category

	2014		2013
Asset category:
Equity securities	45	%	42	%
Debt securities	47	%	44	%
Alternative investments	6	%	13	%
Cash and other	2	%	1	%
Total	100	%	100	%

Expected Benefit Payments Over The Next Ten Years

($ in thousands)	Amount
2015	$	129,826
2016		135,899
2017		138,216
2018		141,248
2019		144,486
2020-2024		750,181
Total	$	1,439,856

Schedule of Assumptions Used

	2014		2013		2012
Discount rate - used at year end to value obligation	4.10	%	4.90	%	4.00	%
Discount rate - used to compute annual cost	4.90	%	4.00	%	4.50	%
Expected long-term rate of return on plan assets	7.75	%	8.00	%	7.75	%
Rate of increase in compensation levels	2.50	%	2.50	%	2.50	%

Schedule of Changes in Projected benefit Obligations for OPEB Table Text Block

($ in thousands)	2014		2013
Change in benefit obligation
Benefit obligation at beginning of year	$	385,623	$	438,550
Benefit obligation for the Connecticut operations as of acquisition date		210,732		-
Service cost		10,799		12,533
Interest cost		21,739		17,241
Plan participants' contributions		5,010		4,293
Actuarial (gain)/loss		114,997		(67,547)
Benefits paid		(19,310)		(19,447)
Plan change		(2,627)		-
Benefit obligation at end of year	$	726,963	$	385,623
Change in plan assets
Fair value of plan assets at beginning of year	$	2,307	$	5,055
Actual return on plan assets		(104)		(122)
Plan participants' contributions		5,010		4,293
Employer contribution		12,170		12,528
Benefits paid		(19,310)		(19,447)
Fair value of plan assets at end of year	$	73	$	2,307
Funded status	$	(726,890)	$	(383,316)
Amounts recognized in the consolidated balance sheet
Pension and other postretirement benefits - current	$	(22,237)	$	(11,508)
Pension and other postretirement benefits - noncurrent	$	(704,653)	$	(371,808)
Accumulated other comprehensive loss	$	118,750	$	5,230

Schedule of Net Benefit Costs For OPEB Table Text Block

($ in thousands)	Expected in 2015		2014		2013		2012
Components of net periodic postretirement benefit cost
Service cost			$	10,799	$	12,533	$	10,812
Interest cost on projected benefit obligation				21,739		17,241		17,842
Expected return on plan assets				(50)		(136)		(172)
Amortization of prior service cost /(credit)	$	(4,205)		(3,911)		(6,101)		(10,068)
Amortization of unrecognized loss		10,819		2,916		7,846		7,537
Net periodic postretirement benefit cost			$	31,493	$	31,383	$	25,951

Schedule of Assumptions Used for OPEB Table Text Block

	2014	2013	2012
Discount rate - used at year end to value obligation	4.10% - 4.20%	4.90% - 5.20%	4.00% - 4.20%
Discount rate - used to compute annual cost	4.90% - 5.20%	4.00% - 4.20%	4.50% - 4.75%
Expected long-term rate of return on plan assets	3.00% - 4.00%	3.00% - 4.00%	3.00% - 4.00%

Schedule of Expected Benefit Payments for OPEB Table Text Block

($ in thousands)	Gross Benefit		Medicare Part D Subsidy		Total
2015	$	22,781	$	11	$	22,770
2016		26,472		18		26,454
2017		29,983		32		29,951
2018		33,148		46		33,102
2019		35,902		67		35,835
2020-2024		209,484		904		208,580
Total	$	357,770	$	1,078	$	356,692

Net Periodic Benefit Cost Not Yet Recognized

($ in thousands)	Pension Plan				OPEB
	2014		2013		2014		2013
Net actuarial loss	$	531,958	$	411,076	$	143,070	$	30,835
Prior service cost/(credit)		310		356		(24,320)		(25,605)
Total	$	532,268	$	411,432	$	118,750	$	5,230

Amounts Recognized as a Componenet of Accumulated Comprehensive Income

($ in thousands)	Pension Plan				OPEB
	2014		2013		2014		2013
Accumulated other comprehensive loss at
beginning of year	$	411,432	$	697,874	$	5,230	$	74,264
Net actuarial gain (loss) recognized during year		(19,951)		(36,930)		(2,916)		(7,846)
Prior service (cost) credit recognized during year		(45)		(8)		3,911		6,101
Net actuarial loss (gain) occurring during year		140,832		(205,341)		112,525		(67,289)
Settlement costs recognized during year		-		(44,163)		-		-
Net amount recognized in comprehensive income
(loss) for the year		120,836		(286,442)		113,520		(69,034)
Accumulated other comprehensive loss at
end of year	$	532,268	$	411,432	$	118,750	$	5,230