Restructuring Charges and Asset Impairments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012
Program 2009 [Member]
Restructuring Costs [Abstract]
Restructuring Reserve, Beginning Balance	$ 107,394
Cash payments	(26,194)
Restructuring Reserve, Ending Balance	81,200
Program 2007 [Member]
Restructuring Costs [Abstract]
Restructuring Reserve, Beginning Balance	11,717
Cash payments	(51)
Restructuring Reserve, Ending Balance	11,666
Severance and Benefits Costs [Member] | Program 2009 [Member]
Restructuring Costs [Abstract]
Restructuring Reserve, Beginning Balance	96,036
Cash payments	(23,923)
Restructuring Reserve, Ending Balance	72,113
Severance and Benefits Costs [Member] | Program 2007 [Member]
Restructuring Costs [Abstract]
Restructuring Reserve, Beginning Balance	9,000
Cash payments	(51)
Restructuring Reserve, Ending Balance	8,949
Other Exit Costs [Member] | Program 2009 [Member]
Restructuring Costs [Abstract]
Restructuring Reserve, Beginning Balance	11,358
Cash payments	(2,271)
Restructuring Reserve, Ending Balance	9,087
Other Exit Costs [Member] | Program 2007 [Member]
Restructuring Costs [Abstract]
Restructuring Reserve, Beginning Balance	2,717
Cash payments	0
Restructuring Reserve, Ending Balance	$ 2,717