Segment and Geographic Information - Geographic Sales & PP&E (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jul. 02, 2011		Jun. 30, 2012		Jul. 02, 2011	Dec. 31, 2011
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	$ 5,150,563		$ 5,539,931		$ 10,040,092		$ 10,762,934
Property, Plant and Equipment, Net	571,971				571,971			556,229
United States [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	2,493,567		2,519,496		4,794,563		4,680,845
Property, Plant and Equipment, Net	489,485				489,485			478,376
Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	2,703,706	[1]	2,728,486	[1]	5,235,486		5,120,287
Property, Plant and Equipment, Net	490,698	[2]			490,698	[2]		479,420	[2]
EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	1,488,294		1,792,023		3,018,321		3,608,587
Property, Plant and Equipment, Net	60,335				60,335			56,552
Asia Pacific [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	958,563		1,019,422		1,786,285		2,034,060
Property, Plant and Equipment, Net	$ 20,938				$ 20,938			$ 20,257

[1] (b)Includes sales related to the United States of $2,493,567 and $4,794,563 for the second quarter and first six months of 2012 and $2,519,496 and $4,680,845 for the second quarter and first six months of 2011, respectively.

[2] (d)Includes net property, plant and equipment related to the United States of $489,485 and $478,376 at June 30, 2012 and December 31, 2011, respectively.