Segment and Geographic Information - Geographic Sales & PP&E (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues From External Customers And Long Lived Assets [Line Items]
Sales		$ 6,751,342	$ 5,698,304	$ 5,829,989	$ 5,002,385	$ 6,396,879	$ 5,613,216	$ 5,676,539	$ 5,082,040	$ 23,282,020	$ 22,768,674	$ 21,357,285
Property, Plant, and Equipment, Net		700,178				636,299				700,178	636,299
Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	[1]									11,721,528	11,340,277	11,023,076
Property, Plant, and Equipment, Net	[2]	582,973				537,967				582,973	537,967
EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales										6,788,738	6,864,104	6,221,569
Property, Plant, and Equipment, Net		88,727				76,487				88,727	76,487
Asia/Pacific [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales										4,771,754	4,564,293	4,112,640
Property, Plant, and Equipment, Net		28,478				21,845				28,478	21,845
UNITED STATES
Revenues From External Customers And Long Lived Assets [Line Items]
Sales										10,761,932	10,359,936	$ 10,074,361
Property, Plant, and Equipment, Net		$ 580,791				$ 535,397				$ 580,791	$ 535,397

[1] Includes sales related to the United States of $10,761,932, $10,359,936, and $10,074,361 in 2015, 2014, and 2013, respectively.

[2] Includes net property, plant, and equipment related to the United States of $580,791 and $535,397 at December 31, 2015 and 2014, respectively.