Restructuring Charges and Asset Impairments (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Program 2009 [Member]
Restructuring Costs [Abstract]
Restructuring Reserve, Beginning Balance	$ 107,394
Restructuring and Related Cost, Incurred Cost	1,610
Cash payments	(46,312)
Restructuring Reserve, Ending Balance	62,692
Program 2007 [Member]
Restructuring Costs [Abstract]
Restructuring Reserve, Beginning Balance	11,717
Restructuring and Related Cost, Incurred Cost	(536)
Cash payments	(1,563)
Restructuring Reserve, Ending Balance	9,618
Other Exit Costs [Member] | Program 2009 [Member]
Restructuring Costs [Abstract]
Restructuring Reserve, Beginning Balance	11,358
Restructuring and Related Cost, Incurred Cost	(1,462)
Cash payments	(3,354)
Restructuring Reserve, Ending Balance	6,542
Other Exit Costs [Member] | Program 2007 [Member]
Restructuring Costs [Abstract]
Restructuring Reserve, Beginning Balance	2,717
Restructuring and Related Cost, Incurred Cost	(72)
Cash payments	(508)
Restructuring Reserve, Ending Balance	2,137
Employee Severance [Member] | Program 2009 [Member]
Restructuring Costs [Abstract]
Restructuring Reserve, Beginning Balance	96,036
Restructuring and Related Cost, Incurred Cost	3,072
Cash payments	(42,958)
Restructuring Reserve, Ending Balance	56,150
Employee Severance [Member] | Program 2007 [Member]
Restructuring Costs [Abstract]
Restructuring Reserve, Beginning Balance	9,000
Restructuring and Related Cost, Incurred Cost	(464)
Cash payments	(1,055)
Restructuring Reserve, Ending Balance	$ 7,481