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Revenue and Segment Information - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Segment Reporting Information [Line Items]
Revenue	$ 1,213.5	$ 1,347.7	$ 2,491.4	$ 2,734.3
Distributors
Segment Reporting Information [Line Items]
Revenue	772.0	780.4	1,475.3	1,545.2
OEM/ODM
Segment Reporting Information [Line Items]
Revenue	368.9	479.7	856.0	1,008.5
Electronic Manufacturing Service Providers
Segment Reporting Information [Line Items]
Revenue	72.6	87.6	160.1	180.6
Singapore
Segment Reporting Information [Line Items]
Revenue	439.4	379.9	847.7	805.1
Hong Kong
Segment Reporting Information [Line Items]
Revenue	323.3	348.4	639.5	686.4
United Kingdom
Segment Reporting Information [Line Items]
Revenue	140.9	229.4	367.9	476.3
United States
Segment Reporting Information [Line Items]
Revenue	151.8	223.5	336.3	437.1
Other
Segment Reporting Information [Line Items]
Revenue	158.1	166.5	300.0	329.4
PSG
Segment Reporting Information [Line Items]
Revenue	618.4	700.9	1,242.3	1,405.1
PSG | Distributors
Segment Reporting Information [Line Items]
Revenue	436.9	433.5	823.2	857.2
PSG | OEM/ODM
Segment Reporting Information [Line Items]
Revenue	150.2	223.3	344.4	459.5
PSG | Electronic Manufacturing Service Providers
Segment Reporting Information [Line Items]
Revenue	31.3	44.1	74.7	88.4
PSG | Singapore
Segment Reporting Information [Line Items]
Revenue	243.4	213.3	437.7	438.3
PSG | Hong Kong
Segment Reporting Information [Line Items]
Revenue	190.4	206.2	382.4	406.8
PSG | United Kingdom
Segment Reporting Information [Line Items]
Revenue	75.8	118.0	180.9	243.8
PSG | United States
Segment Reporting Information [Line Items]
Revenue	56.2	99.6	128.9	188.5
PSG | Other
Segment Reporting Information [Line Items]
Revenue	52.6	63.8	112.4	127.7
ASG
Segment Reporting Information [Line Items]
Revenue	426.7	462.0	893.8	956.1
ASG | Distributors
Segment Reporting Information [Line Items]
Revenue	231.3	230.1	444.9	464.9
ASG | OEM/ODM
Segment Reporting Information [Line Items]
Revenue	164.4	197.7	383.8	418.8
ASG | Electronic Manufacturing Service Providers
Segment Reporting Information [Line Items]
Revenue	31.0	34.2	65.1	72.4
ASG | Singapore
Segment Reporting Information [Line Items]
Revenue	157.4	130.5	330.0	283.5
ASG | Hong Kong
Segment Reporting Information [Line Items]
Revenue	95.7	108.3	187.6	220.3
ASG | United Kingdom
Segment Reporting Information [Line Items]
Revenue	42.4	76.4	119.2	155.9
ASG | United States
Segment Reporting Information [Line Items]
Revenue	63.5	93.0	140.8	185.6
ASG | Other
Segment Reporting Information [Line Items]
Revenue	67.7	53.8	116.2	110.8
ISG
Segment Reporting Information [Line Items]
Revenue	168.4	184.8	355.3	373.1
ISG | Distributors
Segment Reporting Information [Line Items]
Revenue	103.8	116.8	207.2	223.1
ISG | OEM/ODM
Segment Reporting Information [Line Items]
Revenue	54.3	58.7	127.8	130.2
ISG | Electronic Manufacturing Service Providers
Segment Reporting Information [Line Items]
Revenue	10.3	9.3	20.3	19.8
ISG | Singapore
Segment Reporting Information [Line Items]
Revenue	38.6	36.1	80.0	83.3
ISG | Hong Kong
Segment Reporting Information [Line Items]
Revenue	37.2	33.9	69.5	59.3
ISG | United Kingdom
Segment Reporting Information [Line Items]
Revenue	22.7	35.0	67.8	76.6
ISG | United States
Segment Reporting Information [Line Items]
Revenue	32.1	30.9	66.6	63.0
ISG | Other
Segment Reporting Information [Line Items]
Revenue	$ 37.8	$ 48.9	$ 71.4	$ 90.9

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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