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Segment Information - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 28, 2020 USD ($) Segment	Mar. 30, 2019 USD ($)	Dec. 28, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| Segment	3
Number of operating segments \| Segment	3
Goodwill	$ 940		$ 944
Contract Reporting Unit
Segment Reporting Information [Line Items]
Goodwill	345
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	4	$ 3
Operating Segments \| CompuCom Division
Segment Reporting Information [Line Items]
Goodwill	$ 442		$ 456