Pension and OPEB (Tables)

12 Months Ended

Dec. 31, 2013

Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]

Schedule of Changes in Accumulated Postemployment Benefit Obligations [Table Text Block]

	Pension Benefits						Other Postretirement Benefits
	at December 31,						at December 31,
	2013			2012			2013			2012
Change in benefit obligation:
Benefit obligation at beginning of period	$	953,102		$	857,352		$	3,018,172		$	3,242,200
Service cost	20,865			20,466			18,680			18,817
Interest cost	36,829			37,586			111,687			135,695
Actuarial loss (gain)	(82,718		)	90,502			(73,632		)	(131,150		)
Plan amendments	—			—			—			(80,570		)
Plan curtailments	(6,551		)	—			—			—
Plan settlements	(86,925		)	—			(1,891,057		)	—
Participant contributions	—			—			6,150			5,651
Benefits and other payments	(21,958		)	(52,804		)	(168,026		)	(172,471		)
Benefit obligation at end of period	$	812,644		$	953,102		$	1,021,974		$	3,018,172
Change in plan assets:
Fair value of plan assets at beginning of period	$	728,161		$	582,571		$	—		$	—
Actual return on plan assets	94,084			87,935			—			—
Company contributions	55,469			110,459			161,876			166,820
Participant contributions	—			—			6,150			5,651
Benefits and other payments	(21,958		)	(52,804		)	(168,026		)	(172,471		)
Plan Settlements	(86,925		)	—			—			—
Fair value of plan assets at end of period	$	768,831		$	728,161		$	—		$	—
Funded status:
Noncurrent assets	$	9,032		$	—		$	—		$	—
Current liabilities	(4,593		)	(6,937		)	(60,847		)	(58,452		)
Noncurrent liabilities	(48,252		)	(218,004		)	(961,127		)	(882,600		)
Liabilities of discontinued operations	—			—			—			(2,077,120		)
Net obligation recognized	$	(43,813	)	$	(224,941	)	$	(1,021,974	)	$	(3,018,172	)
Amounts recognized in accumulated other comprehensive income consist of:
Net actuarial loss	$	286,637		$	495,511		$	433,073		$	1,116,051
Prior service credit	(4,629		)	(6,614		)	(34,086		)	(104,288		)
Net amount recognized (before tax effect)	$	282,008		$	488,897		$	398,987		$	1,011,763

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

The components of net periodic benefit costs are as follows:

	Pension Benefits									Other Postretirement Benefits
	For the Years Ended December 31,									For the Years Ended December 31,
	2013			2012			2011			2013			2012			2011
Components of net periodic benefit cost:
Service cost	$	20,865		$	20,466		$	17,457		$	18,680		$	18,817		$	13,677
Interest cost	36,829			37,586			37,744			111,687			135,695			179,739
Expected return on plan assets	(51,814		)	(46,157		)	(38,522		)	—			—			—
Amortization of prior service (credits)	(1,611		)	(1,630		)	(666		)	(30,552		)	(51,828		)	(46,397		)
Recognized net actuarial loss	37,853			47,834			38,102			66,417			80,875			105,364
Curtailment gain	(374		)	—			—			(39,650		)	—			—
Settlement loss (gain)	39,482			—			—			(1,348,129		)	—			—
Net periodic benefit cost (credit)	$	81,230		$	58,099		$	54,115		$	(1,221,547	)	$	183,559		$	252,383

Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block]

				Other
	Pension			Postretirement
	Benefits			Benefits
Prior Service (credit) recognition	$	(1,384	)	$	(8,784	)
Actuarial loss recognition	$	23,564		$	25,474

Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]

	As of December 31,
	2013		2012
Projected benefit obligation	$	52,845	$	953,102
Accumulated benefit obligation	$	50,820	$	895,493
Fair value of plan assets	$	—	$	728,161

Schedule of Assumptions Used [Table Text Block]

The weighted-average assumptions used to determine benefit obligations are as follows:

	Pension Benefits				Other Postretirement Benefits
	For the Year Ended				For the Year Ended
	December 31,				December 31,
	2013		2012		2013		2012
Discount rate	4.87	%	4.00	%	4.88	%	4.05	%
Rate of compensation increase	4.23	%	3.77	%	—		—

The discount rates are determined using a Company-specific yield curve model (above-mean) developed with the assistance of an external actuary. The Company-specific yield curve models (above-mean) use a subset of the expanded bond universe to determine the Company-specific discount rate.  Bonds used in the yield curve are rated AA by Moody's or Standard & Poor's as of the measurement date. The yield curve models parallel the plans' projected cash flows, and the underlying cash flows of the bonds included in the models exceed the cash flows needed to satisfy the Company plans'.

The weighted-average assumptions used to determine net periodic benefit costs are as follows:

	Pension Benefits at						Other Postretirement Benefits at
	December 31,						December 31,
	2013		2012		2011		2013		2012		2011
Discount rate	4.00	%	4.50	%	5.30	%	4.05	%	4.51	%	5.33	%
Expected long-term return on plan assets	7.75	%	8.00	%	8.00	%	—		—		—
Rate of compensation increase	3.77	%	3.82	%	3.66	%	—		—		—

Schedule of Health Care Cost Trend Rates [Table Text Block]

The assumed health care cost trend rates are as follows:

	At December 31,
	2013		2012		2011
Health care cost trend rate for next year	6.17	%	6.30	%	6.85	%
Rate to which the cost trend is assumed to decline (ultimate trend rate)	4.50	%	4.50	%	4.50	%
Year that the rate reaches ultimate trend rate	2026		2026		2026

Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block]

Assumed health care cost trend rates have a significant effect on the amounts reported for the medical plans. A one-percentage point change in assumed health care cost trend rates would have the following effects:

	1-Percentage		1-Percentage
	Point Increase		Point Decrease
Effect on total of service and interest cost components	$	17,296	$	(14,297	)
Effect on accumulated postretirement benefit obligation	$	123,355	$	(103,788	)

Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]

Assumed discount rates also have a significant effect on the amounts reported for both pension and other benefit costs. A one-quarter percentage point change in assumed discount rate would have the following effect on benefit costs:

	0.25 Percentage			0.25 Percentage
	Point Increase			Point Decrease
Pension benefit costs (decrease) increase	$	(1,797	)	$	1,798
Other postemployment benefits costs (decrease) increase	$	(3,690	)	$	3,830

Schedule of Allocation of Plan Assets [Table Text Block]

The fair values of plan assets at December 31, 2013 and 2012 by asset category are as follows:

	Fair Value Measurements at December 31, 2013								Fair Value Measurements at December 31, 2012
			Quoted								Quoted
			Prices in								Prices in
			Active								Active
			Markets for		Significant		Significant				Markets for		Significant		Significant
			Identical		Observable		Unobservable				Identical		Observable		Unobservable
			Assets		Inputs		Inputs				Assets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)		Total		(Level 1)		(Level 2)		(Level 3)
Asset Category
Cash/Accrued Income	$	634	$	634	$	—	$	—	$	610	$	610	$	—	$	—
US Equities (a)	14		14		—		—		11		11		—		—
Mercer Collective Trusts
US Large Cap Growth Equity (b)	56,006		—		56,006		—		63,726		—		63,726		—
US Large Cap Value Equity (c)	56,802		—		56,802		—		64,381		—		64,381		—
US Small/Mid Cap Growth Equity (d)	28,530		—		28,530		—		26,406		—		26,406		—
US Small/Mid Cap Value Equity (e)	28,552		—		28,552		—		26,411		—		26,411		—
US Core Fixed Income (f)	35,533		—		35,533		—		38,045		—		38,045		—
Non-US Core Equity (g)	126,712		—		126,712		—		146,009		—		146,009		—
Emerging Markets Equity (h)	29,778		—		29,778		—		33,541		—		33,541		—
Global Low Volatility Equity (i)	70,138		—		70,138		—		—		—		—		—
US Long Duration Investment Grade Fixed Income (j)	55,593		—		55,593		—		39,925		—		39,925		—
US Long Duration Fixed Income (k)	33,489		—		33,489		—		30,675		—		30,675		—
US Large Cap Passive Equity (l)	75,468		—		75,468		—		81,067		—		81,067		—
US Passive Fixed Income (m)	20,287		—		20,287		—		20,415		—		20,415		—
US Long Duration Passive Fixed Income (n)	34,108		—		34,108		—		29,483		—		29,483		—
US Ultra Long Duration Fixed Income (o)	7,656		—		7,656		—		34,595		—		34,595		—
US Active Long Corporate Investment (p)	105,412		—		105,412		—		92,861		—		92,861		—
Long Strips Fixed Income (q)	2,022		—		2,022		—		—		—		—		—
Opportunistic Fixed Income (r)	2,097		—		2,097		—		—		—		—		—
Total	$	768,831	$	648	$	768,183	$	—	$	728,161	$	621	$	727,540	$	—

Schedule of Expected Benefit Payments [Table Text Block]

The following benefit payments, reflecting expected future service, are expected to be paid: