Revenue Recognition - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 26, 2022	Mar. 27, 2021	Dec. 25, 2021
Revenue From Contract With Customer [Line Items]
Short-term contract liabilities	$ 39,000,000		$ 52,000,000
Revenue recognition included in short-term contract liabilities	13,000,000	$ 22,000,000
Recognition of contract assets as a result of business combination	0	0
Recognition of contract liabilities as a result of business combination	0	2,000,000
Significant adjustment to revenue from performance obligations	0	0
Contract with customer, asset, reclassified to receivable	0	0
Short-term contract assets	14,000,000		16,000,000
Long-term contract assets	5,000,000		8,000,000
Long-term contract liabilities			2,000,000
Capitalized contract cost, amortization	5,000,000	6,000,000
Impairment charges related to contract assets	2,000,000	12,000,000
Contract Assets
Revenue From Contract With Customer [Line Items]
Impairment charges related to contract assets	0	$ 0
CompuCom Division
Revenue From Contract With Customer [Line Items]
Short-term contract liabilities			10,000,000
Short-term contract assets			1,000,000
Long-term contract assets			2,000,000
Long-term contract liabilities			2,000,000
Accrued Expenses and Other Current Liabilities
Revenue From Contract With Customer [Line Items]
Short-term contract liabilities	$ 10,000,000		$ 12,000,000