Merger and Restructuring Activity - Additional Information (Detail) $ in Millions		3 Months Ended
	May 08, 2019 USD ($) Store DistributionCenterandSalesOffice	Mar. 30, 2019 USD ($) Store	Mar. 31, 2018 USD ($)
Business Acquisition [Line Items]
Transaction and integration		$ 7	$ 7
Facility closure, contract termination, and other expenses, net			3
Costs to implement restructuring plan		$ 7
Business Acceleration Program | Subsequent Event
Business Acquisition [Line Items]
Number of retail stores planned to be closed | Store	90
Number of other facilities planned to be closed | DistributionCenterandSalesOffice	9
Expected savings from restructuring in 2019	$ 40
Expected savings from restructuring	100
Expected restructuring cost, remainder of fiscal 2019	85
Business Acceleration Program | Subsequent Event | Severance and Related Employee Costs | Cash
Business Acquisition [Line Items]
Expected restructuring cost, remainder of fiscal 2019	70
Business Acceleration Program | Minimum | Subsequent Event
Business Acquisition [Line Items]
Costs to implement restructuring plan	106
Business Acceleration Program | Minimum | Subsequent Event | Cash Expenditures through 2021
Business Acquisition [Line Items]
Costs to implement restructuring plan	99
Business Acceleration Program | Minimum | Subsequent Event | Severance and Related Employee Costs
Business Acquisition [Line Items]
Costs to implement restructuring plan	38
Business Acceleration Program | Minimum | Subsequent Event | Employee Recruitment and Relocation Costs
Business Acquisition [Line Items]
Costs to implement restructuring plan	2
Business Acceleration Program | Minimum | Subsequent Event | Retail Store and Facility Closure Costs
Business Acquisition [Line Items]
Costs to implement restructuring plan	25
Business Acceleration Program | Minimum | Subsequent Event | Third-Party Costs
Business Acquisition [Line Items]
Costs to implement restructuring plan	35
Business Acceleration Program | Minimum | Subsequent Event | Other Costs
Business Acquisition [Line Items]
Costs to implement restructuring plan	6
Business Acceleration Program | Maximum | Subsequent Event
Business Acquisition [Line Items]
Costs to implement restructuring plan	116
Business Acceleration Program | Maximum | Subsequent Event | Cash Expenditures through 2021
Business Acquisition [Line Items]
Costs to implement restructuring plan	101
Business Acceleration Program | Maximum | Subsequent Event | Severance and Related Employee Costs
Business Acquisition [Line Items]
Costs to implement restructuring plan	40
Business Acceleration Program | Maximum | Subsequent Event | Employee Recruitment and Relocation Costs
Business Acquisition [Line Items]
Costs to implement restructuring plan	4
Business Acceleration Program | Maximum | Subsequent Event | Retail Store and Facility Closure Costs
Business Acquisition [Line Items]
Costs to implement restructuring plan	27
Business Acceleration Program | Maximum | Subsequent Event | Third-Party Costs
Business Acquisition [Line Items]
Costs to implement restructuring plan	37
Business Acceleration Program | Maximum | Subsequent Event | Other Costs
Business Acquisition [Line Items]
Costs to implement restructuring plan	$ 8
Comprehensive Business Review
Business Acquisition [Line Items]
Number of retail stores closed | Store		2
Additional number of retail stores planned to be close | Store		57
Comprehensive Business Review | Other Costs
Business Acquisition [Line Items]
Costs to implement restructuring plan		$ 5
OfficeMax Merger
Business Acquisition [Line Items]
Transaction and integration			3
Facility closure, contract termination, and other expenses, net			$ 3