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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Segment Information - Additional Information (Detail)	12 Months Ended
Segment Information - Additional Information (Detail)	Dec. 29, 2018 USD ($) Segment Customer	Dec. 30, 2017 USD ($) Customer	Dec. 31, 2016 USD ($) Customer
Segment Reporting Information [Line Items]
Number of reportable segments \| Segment	3
Number of operating segments \| Segment	3
Goodwill	$ 914,000,000	$ 851,000,000
Customer Concentration Risk \| Total Sales
Segment Reporting Information [Line Items]
Number of customers accounting for 10% or more of the total sales \| Customer	0	0	0
Intersegment Eliminations
Segment Reporting Information [Line Items]
Revenues	$ 11,000,000	$ 0	$ 0
Operating Segments \| Business Solutions Division
Segment Reporting Information [Line Items]
Goodwill	387,000,000	328,000,000
Operating Segments \| Retail Division
Segment Reporting Information [Line Items]
Goodwill	78,000,000	78,000,000
Operating Segments \| CompuCom Division
Segment Reporting Information [Line Items]
Goodwill	$ 449,000,000	$ 445,000,000