Benefit Obligations (Tables)

12 Months Ended

Dec. 31, 2011

Benefit Obligations [Abstract]

Net Periodic Benefit Cost/(Credit)

	Year Ended December 31,
	2011						2010						2009
	Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits
	(In thousands)
Service cost	$	531		$	75		$	472		$	81		$	1,792		$	79
Interest cost		67,499			2,597			70,337			2,441			73,774			2,426
Expected return on plan assets		(67,965	)		(4,128	)		(71,464	)		(4,597	)		(76,802	)		(4,877	)
Amortization of prior service cost and transition asset		18			—			38			—			49			—
Amortization of net actuarial loss/(gain)		6,750			552			2,155			—			(94	)		—
Special termination benefit		—			—			—			—			426	(a)		—
Other		54			—			—			—			—			(1,529	)(b)
Total benefit cost/(credit)	$	6,887		$	(904	)	$	1,538		$	(2,075	)	$	(855	)	$	(3,901	)

(a) The special termination benefit in 2009 reflects enhanced retirement benefits given to active represented plan participants impacted by a workforce reduction in January 2009.

(b) The amount in 2009 reflects the reversal of the excess retiree medical liability accrued for claims from 2008.

Change in Projected Benefit Obligation

	Year Ended December 31,
	2011						2010
	Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits
	(In thousands)
Projected benefit obligation at January 1	$	1,331,137		$	44,488		$	1,274,415		$	41,124
Service cost		531			75			472			81
Interest cost		67,499			2,597			70,337			2,441
Actuarial loss		150,776			11,893			66,607			1,692
Benefits paid(a)		(86,659	)		(1,119	)		(85,988	)		(850	)
Other adjustments		(205	)		—			5,294			—
Projected benefit obligation at December 31	$	1,463,079		$	57,934		$	1,331,137		$	44,488

(a) The pension benefits paid include amounts paid under certain international pension plans, which do not maintain plan assets.

Change in Plan Assets

	Year Ended December 31,
	2011						2010
	Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits
	(In thousands)
Fair value of plan assets at January 1	$	868,809		$	66,781		$	819,410		$	62,300
Actual gain on plan assets		19,721			1,379			95,967			5,402
Employer contributions		65,112			—			31,027			—
Benefits paid		(86,302	)		(1,192	)		(85,789	)		(921	)
Other adjustments		(99	)		—			8,194			—
Fair value of plan assets at December 31	$	867,241		$	66,968		$	868,809		$	66,781

Funded Status of the Plans

	December 31,
	2011					2010
	Pension Benefits			Post-retirement Benefits		Pension Benefits			Post-retirement Benefits
	(In thousands)
Funded status of the plans (liability)/asset	$	(595,838	)	$	9,034	$	(462,328	)	$	22,293

Plans with Projected Benefit Obligation and Accumulated Benefit Obligation in excess of Plan Assets

	December 31,
	2011		2010
	Pension Benefits
	(In thousands)
Projected benefit obligation	$	1,455,297	$	1,324,302
Accumulated benefit obligation	$	1,453,690	$	1,322,394
Fair value of plan assets	$	857,259	$	860,414

Plans with Accumulated Benefit Obligation less than Plan Assets

	December 31,
	2011		2010
	Pension Benefits
	(In thousands)
Projected benefit obligation	$	7,782	$	6,835
Accumulated benefit obligation	$	7,666	$	6,740
Fair value of plan assets	$	9,982	$	8,395
	December 31,
	2011		2010
	Post-retirement Benefits
	(In thousands)
Accumulated benefit obligation	$	57,934	$	44,488
Fair value of plan assets	$	66,968	$	66,781

Amounts recognized in the consolidated balance sheets for the plans

	December 31,
	2011					2010
	Pension Benefits			Post-retirement Benefits		Pension Benefits			Post-retirement Benefits
	(In thousands)
Non-current assets	$	2,201		$	9,034	$	1,560		$	22,293
Current liabilities		(856	)		—		(769	)		—
Non-current liabilities		(597,183	)		—		(463,119	)		—
Net (liability)/asset	$	(595,838	)	$	9,034	$	(462,328	)	$	22,293

Accumulated other comprehensive loss

	December 31,
	2011					2010
	Pension Benefits			Post-retirement Benefits		Pension Benefits			Post-retirement Benefits
	(In thousands)
Net prior service cost	$	242		$	—	$	278		$	—
Net actuarial loss		527,045			24,788		334,809			10,625
Transition asset		(157	)		—		(175	)		—
Accumulated other comprehensive loss		527,130			24,788		334,912			10,625
Tax on prior actuarial gains		23,813			3,026		23,813			3,026
Accumulated other comprehensive loss, after tax	$	550,943		$	27,814	$	358,725		$	13,651

Changes in accumulated other comprehensive loss related to pension and post-retirement plans

	Year Ended December 31,
	2011						2010					2009
	Pension Benefits			Post-retirement Benefits			Pension Benefits			Post-retirement Benefits		Pension Benefits			Post-retirement Benefits
	(In thousands)
Accumulated other comprehensive loss at January 1, after tax	$	358,725		$	13,651		$	319,507		$	12,694	$	292,951		$	13,883
Recognized during period — Prior service cost and transition asset		(18	)		—			(38	)		—		(49	)		—
Recognized during period — Actuarial (loss)/gain		(6,750	)		(552	)		(2,155	)		—		94			—
Occurring during period — Actuarial loss/(gain)		198,986			14,715			42,051			957		26,546			(3,435	)
Other adjustments		—			—			(640	)		—		(35	)		1,529
Accumulated other comprehensive loss at December 31		550,943			27,814			358,725			13,651		319,507			11,977
Tax		—			—			—			—		—			717
Accumulated other comprehensive loss at December 31, after tax	$	550,943		$	27,814		$	358,725		$	13,651	$	319,507		$	12,694

Fair values of the assets for the defined benefit pension plans by asset category

	Fair Value Measurements as of December 31, 2011
	Level 1			Level 2			Level 3		Total
	(In thousands)
Cash and cash equivalents	$	5,183		$	23,493	(a)	$	—	$	28,676
Equity securities:
Domestic equity securities		169,635	(b)		359	(c)		—		169,994
International equity securities		76,202	(b)		2,401	(c)		—		78,603
Fixed-income securities:
U.S. treasuries(d)		—			80,426			—		80,426
Corporate bonds(e)		—			155,666			—		155,666
Asset-backed and mortgage-backed securities		—			2,976			—		2,976
Agency-backed securities		—			7,793			—		7,793
Municipal bonds		—			6,334			—		6,334
Government bonds		—			17,242			—		17,242
Other types of investments:
Commingled funds — equities(f)		—			163,510			—		163,510
Commingled funds — bonds(g)		—			156,393			—		156,393
Derivatives		40			(412	)		—		(372	)
Total	$	251,060		$	616,181		$	—	$	867,241

	Fair Value Measurements as of December 31, 2010
	Level 1			Level 2			Level 3		Total
	(In thousands)
Cash and cash equivalents	$	11,382		$	13,346	(a)	$	—	$	24,728
Equity securities:
Domestic equity securities		183,239	(b)		2,750	(c)		—		185,989
International equity securities		151,041	(b)		1,990	(c)		—		153,031
Fixed-income securities:
U.S. treasuries(d)		—			73,554			—		73,554
Corporate bonds(e)		—			140,106			—		140,106
Asset-backed and mortgage-backed securities		—			14,739			—		14,739
Agency-backed securities		—			10,930			—		10,930
Municipal bonds		—			8,253			—		8,253
Government bonds		—			11,059			—		11,059
Other types of investments:
Commingled funds — equities(f)		—			180,935			—		180,935
Commingled funds — bonds(g)		—			65,232			—		65,232
Derivatives		180			73			—		253
Total	$	345,842		$	522,967		$	—	$	868,809

(a) The amounts represent cash equivalents and primarily include short-term investment funds, which consisted of short-term money market instruments that are valued using quoted prices for similar assets and liabilities in active markets.

(b) The amounts include funds that invest primarily in equity securities of publicly-traded companies. Quoted prices for the funds are available in active markets.

(c) The amounts include funds that invest primarily in equity securities that are traded less frequently than exchange-traded securities and are valued using inputs that include quoted prices for similar assets in active markets.

(d) The fair value was determined based on compilation of primary observable market information and inputs that include quoted prices for similar assets in active markets, and inputs other than quoted prices that are observable for the asset, such as broker/dealer quotes, yield curves and indices that are observable at commonly quoted intervals.

(e) The amounts include funds that invest primarily in investment-grade debt securities.

(f) The amounts consist of investments in funds not registered with U.S. Securities and Exchange Commission, with underlying investments primarily in publicly traded U.S. and non-U.S. equity securities, including securities with small and large market capitalization. The fair value was determined based on the net asset value per share of each investment at December 31, 2011 and 2010. These funds are classified as Level 2 in the fair value hierarchy as the Company could redeem these investments with the sponsoring investment management organizations at December 31, 2011 and 2010, and with at least monthly frequency on an ongoing basis.

(g) The amounts consist of investments in funds not registered with U.S. Securities and Exchange Commission, with underlying investments primarily in Treasury Inflation-Protected Securities and high-yield bonds. The fair value was determined based on the net asset value per share of each investment at December 31, 2011 and 2010. These funds are classified as Level 2 in the fair value hierarchy as the Company could redeem these investments with the sponsoring investment management organizations at December 31, 2011 and 2010, and with at least monthly frequency on an ongoing basis.

Fair values of the assets for the post-retirement benefit plan by asset category

	Fair Value Measurements as of December 31, 2011
	Level 1		Level 2		Level 3		Total
	(In thousands)
Commingled funds — domestic equities(a)	$	—	$	13,302	$	—	$	13,302
Commingled funds — international equities(a)		—		13,536		—		13,536
Commingled funds — bonds(a)		—		40,130		—		40,130
Total	$	—	$	66,968	$	—	$	66,968

	Fair Value Measurements as of December 31, 2010
	Level 1		Level 2		Level 3		Total
	(In thousands)
Commingled funds — domestic equities(a)	$	—	$	13,310	$	—	$	13,310
Commingled funds — international equities(a)		—		13,369		—		13,369
Commingled funds — bonds(a)		—		40,102		—		40,102
Total	$	—	$	66,781	$	—	$	66,781

(a) The amounts consist of investments in funds not registered with U.S. Securities and Exchange Commission, with underlying investments primarily in the equity securities included in the S&P 500 Index, non-U.S. equity securities and investment grade fixed-income securities. The fair value was determined based on the net asset value per share of each investment at December 31, 2011 and 2010. These funds are classified as Level 2 in the fair value hierarchy as the Company could redeem these investments with the sponsoring investment management organizations at December 31, 2011 and 2010, and with at least monthly frequency on an ongoing basis.

Fair values of the assets for the non-qualified supplemental pension plan by asset category

	Fair Value Measurements as of December 31, 2011
	Level 1		Level 2		Level 3		Total
	(In thousands)
Money-market funds	$	1,353	$	—	$	—	$	1,353
Mutual funds(a)		9,284		—		—		9,284
Total	$	10,637	$	—	$	—	$	10,637

	Fair Value Measurements as of December 31, 2010
	Level 1		Level 2		Level 3		Total
	(In thousands)
Money market funds	$	2,061	$	—	$	—	$	2,061
Mutual funds(a)		8,427		—		—		8,427
Total	$	10,488	$	—	$	—	$	10,488

(a) The amounts consist of registered investment company funds with quoted prices in active markets.

Plan Asset Allocations for Defined Benefit Pension Plans and Post-retirement Benefit Plan

	December 31,
	2011									2010
	Pension Benefits			Non-qualified Pension Benefits			Post-retirement Benefits			Pension Benefits			Non-qualified Pension Benefits			Post-retirement Benefits
Equity securities		54	%		34	%		40	%		57	%		35	%		40	%
Debt securities		42	%		66	%		60	%		38	%		65	%		60	%
Real estate securities		4	%		—			—			5	%		—			—

Actuarial Assumptions

	Year Ended December 31,
	2011		2010		2009
	Pension Benefits	Post- retirement Life Benefits	Pension Benefits	Post- retirement Life Benefits	Pension Benefits	Post- retirement Life Benefits
Discount rate to determine net periodic cost	5.25%	5.70%	5.75%	6.00%	6.50%	6.50%
Discount rate to determine the benefit obligation as of December 31	4.30%	4.50%	5.25%	5.70%	5.75%	6.00%
Rate of compensation increase to determine net periodic cost	N/A	3.50%	N/A	4.00%	4.00%	4.00%
Rate of compensation increase to determine the benefit obligation as of December 31	N/A	3.50%	N/A	3.50%	N/A	4.00%
Expected average rate of return on plan assets	7.75%(a)	6.20%	8.00%(a)	7.00%	8.25(b)/8.00%(c)	7.50%

(a) Rate for both management and represented plans.

(b) Rate for management plan.

(c) Rate for represented plan.

Benefit Payments

	Pension Benefits		Post-retirement Benefits
	(In thousands)
Year ending December 31, 2012	$	89,144	$	1,430
Year ending December 31, 2013	$	88,991	$	1,550
Year ending December 31, 2014	$	88,610	$	1,670
Year ending December 31, 2015	$	88,548	$	1,790
Year ending December 31, 2016	$	89,817	$	1,920
Years ending December 31, 2017 through December 31, 2021	$	444,596	$	11,900