Restructuring Charges and Asset Impairments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Restructuring Costs [Abstract]
Balance Beginning	$ 66,572
Expenses, net	9,841
Cash payments	(18,937)	(16,275)
Non-cash charges	(2,550)
Balance Ending	54,926
Severance and benefits costs
Restructuring Costs [Abstract]
Balance Beginning	58,558
Expenses, net	6,188
Cash payments	(16,600)
Non-cash charges	0
Balance Ending	48,146
Pension and Retiree Medical
Restructuring Costs [Abstract]
Balance Beginning	0
Expenses, net	2,550
Cash payments	0
Non-cash charges	(2,550)
Balance Ending	0
Other exit costs
Restructuring Costs [Abstract]
Balance Beginning	8,014
Expenses, net	1,103
Cash payments	(2,337)
Non-cash charges	0
Balance Ending	$ 6,780