Segment and Geographic Information - Geographic Sales & PP&E (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Apr. 02, 2011		Dec. 31, 2011
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	$ 4,889,529		$ 5,223,003
Property, Plant and Equipment, Net	563,519				556,229
United States [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	2,300,996		2,161,349
Property, Plant and Equipment, Net	482,475				478,376
Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	2,531,780	[1]	2,391,801	[1]
Property, Plant and Equipment, Net	483,653	[2]			479,420	[2]
EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	1,530,027	[3]	1,816,564	[3]
Property, Plant and Equipment, Net	59,474				56,552
Asia Pacific [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	827,722		1,014,638
Property, Plant and Equipment, Net	$ 20,392				$ 20,257

[1] Includes sales related to the United States of $2,300,996 and $2,161,349 for the first quarters of 2012 and 2011, respectively.

[2] Includes net property, plant and equipment related to the United States of $482,475 and $478,376 at March 31, 2012 and December 31, 2011, respectively.

[3] Defined as Europe, the Middle East, and Africa.