Segment and Geographic Information - Geographic Sales & PP&E (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018	Dec. 31, 2018
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	[1]	$ 7,078,118	$ 7,490,445	$ 21,578,657	$ 21,758,586
Property, plant, and equipment, net		805,264		805,264		$ 824,700
Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant, and equipment, net	[2]	614,722		614,722		673,228
EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant, and equipment, net		138,564		138,564		110,996
Asia Pacific [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Property, plant, and equipment, net		51,978		51,978		40,476
United States [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales		2,875,687	3,181,227	8,560,115	8,799,364
Property, plant, and equipment, net		612,258		612,258		$ 670,201
Global Components [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales		5,048,880	5,381,078	15,511,742	15,595,374
Global Components [Member] | Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales		1,738,710	2,060,920	5,522,538	5,795,500
Global Components [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	[3]	1,304,109	1,399,435	4,223,363	4,325,793
Global Components [Member] | Asia Pacific [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales		2,006,061	1,920,723	5,765,841	5,474,081
Global ECS [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales		2,029,238	2,109,367	6,066,915	6,163,212
Global ECS [Member] | Americas [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales		1,418,914	1,457,719	3,992,277	4,040,164
Global ECS [Member] | EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Sales	[3]	$ 610,324	$ 651,648	$ 2,074,638	$ 2,123,048

[1] Includes sales related to the United States of $2,875,687 and $8,560,115 for the third quarter and first nine months of 2019 and $3,181,227 and $8,799,364 for the third quarter and first nine months of 2018, respectively.

[2] Includes net property, plant, and equipment related to the United States of $612,258 and $670,201 at September 28, 2019 and December 31, 2018, respectively.

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