Merger, Restructuring and Other Accruals - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 28, 2015 Store	Mar. 29, 2014
Merger Restructuring And Other Operating Expenses [Line Items]
Number of retail stores expected to be closed in 2015	135
Gain on sale of warehouse facility classified as an asset held for sale	$ 19
Charges Incurred	22
Merger, restructuring, and other operating expenses, net	43	101
Merger, restructuring and other operating expenses other than liabilities	21
Merger transaction and integration expenses	24	21
Fixed assets and rent related expenses	6
Minimum
Merger Restructuring And Other Operating Expenses [Line Items]
Number of retail stores expected to be closed in 2016	100
European restructuring plan
Merger Restructuring And Other Operating Expenses [Line Items]
Anticipated restructuring expenses for the remainder of 2015	54
Transaction and integration expenses	2
European restructuring plan | Employee Severance And Termination Benefits
Merger Restructuring And Other Operating Expenses [Line Items]
Charges Incurred	5
European restructuring plan | Lease Contract Obligations
Merger Restructuring And Other Operating Expenses [Line Items]
Charges Incurred	5
European restructuring plan | Professional Fees and Other Restructuring Costs
Merger Restructuring And Other Operating Expenses [Line Items]
Charges Incurred	3
Merger, Restructuring and Other Operating Expenses, Net
Merger Restructuring And Other Operating Expenses [Line Items]
Gain on sale of warehouse facility classified as an asset held for sale	19
Charges Incurred	22
Staples, Inc.
Merger Restructuring And Other Operating Expenses [Line Items]
Transaction and integration expenses	$ 8