Segment and Geographic Information - Geographic Sales & PP&E (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 29, 2012		Oct. 01, 2011		Sep. 29, 2012		Oct. 01, 2011	Dec. 31, 2011
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	$ 4,962,331		$ 5,186,857		$ 15,002,423		$ 15,949,791
Property, Plant and Equipment, Net	583,153				583,153			556,229
United States [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	2,370,154		2,376,928		7,164,717		7,057,773
Property, Plant and Equipment, Net	498,088				498,088			478,376
Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	2,562,485	[1]	2,577,865	[1]	7,797,971		7,698,152
Property, Plant and Equipment, Net	499,440	[2]			499,440	[2]		479,420	[2]
EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	1,322,837		1,630,990		4,341,158		5,239,577
Property, Plant and Equipment, Net	62,537				62,537			56,552
Asia Pacific [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	1,077,009		978,002		2,863,294		3,012,062
Property, Plant and Equipment, Net	$ 21,176				$ 21,176			$ 20,257

[1] (b)Includes sales related to the United States of $2,370,154 and $7,164,717 for the third quarter and first nine months of 2012 and $2,376,928 and $7,057,773 for the third quarter and first nine months of 2011, respectively.

[2] (d)Includes net property, plant and equipment related to the United States of $498,088 and $478,376 at September 29, 2012 and December 31, 2011, respectively.