Reconciliation of Revenue from Segments to Consolidated (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Segment Reporting Information [Line Items]
Sales	$ 2,539	$ 2,782	$ 7,422	$ 8,139
Business Solutions Division
Segment Reporting Information [Line Items]
Sales	1,197	1,350	3,554	4,022
Retail Division
Segment Reporting Information [Line Items]
Sales	1,147	1,177	3,216	3,352
CompuCom Division
Segment Reporting Information [Line Items]
Sales	197	252	646	758
Other
Segment Reporting Information [Line Items]
Sales	$ (2)	$ 3	$ 6	$ 7