Income Taxes (Tables)

12 Months Ended

Dec. 31, 2011

Income Taxes [Abstract]

Components of deferred tax assets and liabilities

	2011			2010
	(In thousands)
Deferred tax assets related to:
Expenses not yet deducted for tax purposes	$	200,698		$	163,367
Pension liability not yet deducted for tax purposes		377,846			279,204
Capital loss		16,803			24,580
Valuation allowance		(16,803	)		(24,784	)
		578,544			442,367
Deferred tax liabilities related to:
Employee and retiree benefits		188,206			178,806
Inventory		66,044			72,767
Property, plant, and equipment		47,413			33,474
Other		43,225			17,728
		344,888			302,775
Net deferred tax asset		233,656			139,592
Current portion of deferred tax liability		17,250			17,800
Noncurrent net deferred tax asset	$	250,906		$	157,392

Components of income tax expense

	2011			2010		2009
	(In thousands)
Current:
Federal	$	260,222		$	221,770	$	171,691
State		41,511			36,291		28,591
Foreign		26,294			16,217		16,409
Deferred		(2,337	)		11,994		27,899
	$	325,690		$	286,272	$	244,590

Difference between total tax expense and amount computed by applying statutory federal income tax rate

	2011			2010			2009
	(In thousands)
Statutory rate applied to income	$	311,782		$	266,624		$	225,458
Plus state income taxes, net of Federal tax benefit		26,790			24,621			20,977
Other		(12,882	)		(4,973	)		(1,845	)
	$	325,690		$	286,272		$	244,590

Reconciliation of beginning and ending amount of unrecognized tax benefits

	2011			2010			2009
	(In thousands)
Balance at beginning of year	$	39,425		$	33,322		$	30,453
Additions based on tax positions related to the current year		6,035			4,243			5,648
Additions for tax positions of prior years		7,966			3,493			993
Reductions for tax positions for prior years		(481	)		(624	)		—
Reduction for lapse in statute of limitations		(4,563	)		(451	)		(2,779	)
Settlements		(1,537	)		(558	)		(993	)
Balance at end of year	$	46,845		$	39,425		$	33,322