Other Financial Statement Disclosures (Tables)

9 Months Ended

Sep. 30, 2014

Other Financial Statement Disclosures [Abstract]

Components of Receivables - trade and other

The following table sets forth the components of Receivables - trade and other (in thousands):

	September 30, 2014		December 31, 2013
Trade	$	433,997	$	323,679
Income tax	62,590		6,759
Other	13,607		14,108
Total receivables - trade and other	$	510,194	$	344,546

Assets and Liabilities Measured at Fair Value on a Recurring Basis

Certain of our assets and liabilities are required to be measured at fair value on a recurring basis. Assets and liabilities measured at fair value are summarized below (in thousands):

			Estimated fair value measurements
	Carrying value		Quoted prices in active markets (Level 1)		Significant other observable inputs (Level 2)		Significant other unobservable inputs (Level 3)
September 30, 2014:
Assets - cash equivalents	$	663,297	$	663,297	$	—	$	—
December 31, 2013:
Assets - cash equivalents	$	1,063,500	$	1,063,500	$	—	$	—

Estimated Fair Values and Related Carrying Values of Long-term Debt Securities

Estimated fair values and related carrying values of our long-term debt securities are shown below (in thousands):

	September 30, 2014				December 31, 2013
	Fair value		Carrying value		Fair value		Carrying value
5% Senior Notes, due 2017	$	431,153	$	399,173	$	433,879	$	398,961
7.875% Senior Notes, due 2019	603,258		498,418		603,177		498,171
4.875% Senior Notes, due 2022	731,136		712,035		711,816		713,208
4.75% Senior Notes, due 2024	406,284		399,621		—		—
5.4% Senior Notes, due 2042	378,314		398,402		368,602		398,360
5.85% Senior Notes, due 2044	400,405		399,891		—		—
	$	2,950,550	$	2,807,540	$	2,117,474	$	2,008,700

Schedule of Amounts Reclassified Out of Each Component of AOCL

The following sets forth the significant amounts reclassified out of each component of AOCL. The amounts reclassified are included in the computation of net periodic pension costs. (See Note 3– Pension and Other Postemployment Benefits.) Amounts in parentheses indicate debits to income (in thousands):

	Three months ended September 30,						Nine months ended September 30,
	2014			2013			2014			2013
Amortization of pension and OPEB items:
Actuarial gains (losses)	$	(4,909	)	$	(6,924	)	$	(14,570	)	$	(20,553	)
Prior service costs	1,142			1,230			3,390			3,652
Total before tax	(3,767		)	(5,694		)	(11,180		)	(16,901		)
Tax (expense) benefit	1,314			1,993			3,899			5,915
Total reclassifications for the period, net of tax	$	(2,453	)	$	(3,701	)	$	(7,281	)	$	(10,986	)