BENEFIT PLANS (Tables)

12 Months Ended

Dec. 31, 2015



in thousands	2015	2014
Change in Benefit Obligation
Projected benefit obligation at beginning of year	$ 1,083,222	$ 911,700
Service cost	4,851	4,157
Interest cost	44,065	44,392
Actuarial (gain) loss	(63,725)	167,041
Benefits paid	(79,960)	(44,068)
Projected benefit obligation at end of year	$ 988,453	$ 1,083,222
Change in Fair Value of Plan Assets
Fair value of assets at beginning of year	$ 816,972	$ 756,624
Actual return on plan assets	(5,373)	98,928
Employer contribution	14,047	5,488
Benefits paid	(79,960)	(44,068)
Fair value of assets at end of year	$ 745,686	$ 816,972
Funded status	(242,767)	(266,250)
Net amount recognized	$ (242,767)	$ (266,250)
Amounts Recognized in the Consolidated
Balance Sheets
Noncurrent assets	$ 0	$ 0
Current liabilities	(9,106)	(13,719)
Noncurrent liabilities	(233,661)	(252,531)
Net amount recognized	$ (242,767)	$ (266,250)
Amounts Recognized in Accumulated
Other Comprehensive Income
Net actuarial loss	$ 222,580	$ 249,867
Prior service credit	(404)	(356)
Total amount recognized	$ 222,176	$ 249,511



dollars in thousands	2015	2014	2013
Components of Net Periodic Pension
Benefit Cost
Service cost	$ 4,851	$ 4,157	$ 21,904
Interest cost	44,065	44,392	40,995
Expected return on plan assets	(54,736)	(50,802)	(47,425)
Settlement charge	2,031	0	0
Curtailment loss	0	0	855
Amortization of prior service cost	48	188	339
Amortization of actuarial loss	21,641	11,221	20,429
Net periodic pension benefit cost	$ 17,900	$ 9,156	$ 37,097
Changes in Plan Assets and Benefit
Obligations Recognized in Other
Comprehensive Income
Net actuarial loss (gain)	$ (3,615)	$ 118,915	$ (163,205)
Prior service cost (credit)	0	0	(583)
Reclassification of actuarial loss to net
periodic pension benefit cost	(23,672)	(11,221)	(20,429)
Reclassification of prior service cost to net
periodic pension benefit cost	(48)	(188)	(1,194)
Amount recognized in other comprehensive
income	$ (27,335)	$ 107,506	$ (185,411)
Amount recognized in net periodic pension
benefit cost and other comprehensive
income	$ (9,435)	$ 116,662	$ (148,314)
Assumptions
Weighted-average assumptions used to
determine net periodic benefit cost for
years ended December 31
Discount rate	4.14%	4.91%	4.33%
Expected return on plan assets	7.50%	7.50%	7.50%
Rate of compensation increase
(for salary-related plans)	3.70%	3.50%	3.50%
Weighted-average assumptions used to
determine benefit obligation at
December 31
Discount rate	4.54%	4.14%	4.91%
Rate of compensation increase
(for salary-related plans)	3.50%	3.70%	3.50%

Fair Value Measurements at December 31, 2015



in thousands	Level 1 1	Level 2 1	Level 3 1	Total
Asset Category
Debt securities	$ 0	$ 154,745	$ 0	$ 154,745
Investment funds
Commodity funds	0	14,490	0	14,490
Equity funds	647	463,416	0	464,063
Short-term funds	0	9,516	0	9,516
Venture capital and partnerships	0	0	102,872	102,872
Total pension plan assets	$ 647	$ 642,167	$ 102,872	$ 745,686


1	See Note 1 under the caption Fair Value Measurements for a description of the fair value hierarchy.

Fair Value Measurements at December 31, 2014



in thousands	Level 1 1	Level 2 1	Level 3 1	Total
Asset Category
Debt securities	$ 0	$ 164,695	$ 0	$ 164,695
Investment funds
Commodity funds	0	19,480	0	19,480
Equity funds	457	506,912	0	507,369
Short-term funds	0	15,495	0	15,495
Venture capital and partnerships	0	0	109,933	109,933
Total pension plan assets	$ 457	$ 706,582	$ 109,933	$ 816,972


1	See Note 1 under the caption Fair Value Measurements for a description of the fair value hierarchy.



			Venture
			Capital and
in thousands			Partnerships
Balance at December 31, 2013			$ 88,482
Total gains (losses) for 2014 1			34,071
Purchases, sales and settlements, net			(12,940)
Transfers into (out of) Level 3			320
Balance at December 31, 2014			$ 109,933
Total gains (losses) for 2015 1			5,186
Purchases, sales and settlements, net			(12,247)
Transfers into (out of) Level 3			0
Balance at December 31, 2015			$ 102,872


1	The total gains (losses) for 2015 and 2014 include $47 thousand and $29,329 thousand, respectively, in unrealized gains related to assets still held as of their respective year ends.



in thousands			Pension
Estimated Future Benefit Payments
2016			$ 51,286
2017			52,434
2018			55,527
2019			56,835
2020			58,161
2021-2025			305,043



in thousands	2015	2014
Change in Benefit Obligation
Projected benefit obligation at beginning of year	$ 85,336	$ 92,888
Service cost	1,894	2,146
Interest cost	2,485	3,297
Liability reduction from curtailment	0	(2,639)
Actuarial gain	(35,195)	(2,617)
Benefits paid	(5,915)	(7,739)
Projected benefit obligation at end of year	$ 48,605	$ 85,336
Change in Fair Value of Plan Assets
Fair value of assets at beginning of year	$ 0	$ 0
Actual return on plan assets	0	0
Fair value of assets at end of year	$ 0	$ 0
Funded status	$ (48,605)	$ (85,336)
Net amount recognized	$ (48,605)	$ (85,336)
Amounts Recognized in the Consolidated
Balance Sheets
Current liabilities	$ (6,287)	$ (8,964)
Noncurrent liabilities	(42,318)	(76,372)
Net amount recognized	$ (48,605)	$ (85,336)
Amounts Recognized in Accumulated
Other Comprehensive Income
Net actuarial (gain) loss	$ (24,325)	$ 10,921
Prior service credit	(23,928)	(28,160)
Total amount recognized	$ (48,253)	$ (17,239)



dollars in thousands	2015	2014	2013
Components of Net Periodic Postretirement
Benefit Cost
Service cost	$ 1,894	$ 2,146	$ 2,830
Interest cost	2,485	3,297	3,260
Curtailment gain	0	(3,832)	0
Amortization of prior service credit	(4,232)	(4,327)	(4,863)
Amortization of actuarial loss	37	227	1,372
Net periodic postretirement benefit cost (credit)	$ 184	$ (2,489)	$ 2,599
Changes in Plan Assets and Benefit
Obligations Recognized in Other
Comprehensive Income
Net actuarial (gain) loss	$ (35,209)	$ (5,256)	$ (20,444)
Reclassification of actuarial loss to net
periodic postretirement benefit cost	(37)	(227)	(1,372)
Reclassification of prior service credit to net
periodic postretirement benefit cost	4,232	8,159	4,863
Amount recognized in other comprehensive
income	$ (31,014)	$ 2,676	$ (16,953)
Amount recognized in net periodic
postretirement benefit cost and other
comprehensive income	$ (30,830)	$ 187	$ (14,354)
Assumptions
Assumed Healthcare Cost Trend Rates
at December 31
Healthcare cost trend rate assumed
for next year	n/a	7.50%	7.50%
Rate to which the cost trend rate gradually
declines	n/a	5.00%	5.00%
Year that the rate reaches the rate it is
assumed to maintain	n/a	2025	2019
Weighted-average assumptions used to
determine net periodic benefit cost for
years ended December 31
Discount rate	3.50%	4.10%	3.30%
Weighted-average assumptions used to
determine benefit obligation at
December 31
Discount rate	3.69%	3.50%	4.10%



in thousands			Postretirement
Estimated Future Benefit Payments
2016			$ 6,287
2017			5,856
2018			5,623
2019			5,415
2020			5,152
2021–2025			19,229



in thousands			Postretirement
Participants Contributions
2013			$ 2,022
2014			1,873
2015			2,031