Severance and Facility Closure Costs (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 26, 2015
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 196	$ 161
Charges Incurred	70	158
Cash Payments	(182)	(126)
Lease Accretion and Other Adjustments	5	3
Ending Balance	89	196
Termination benefits | Merger related accruals
Restructuring Cost and Reserve [Line Items]
Beginning Balance	16	31
Charges Incurred		16
Cash Payments	(9)	(31)
Lease Accretion and Other Adjustments	(2)
Ending Balance	5	16
Termination benefits | Comprehensive Business Review
Restructuring Cost and Reserve [Line Items]
Charges Incurred	19
Cash Payments	(11)
Ending Balance	8
Lease and contract obligations, accruals for facilities closures and other costs | Merger related accruals
Restructuring Cost and Reserve [Line Items]
Beginning Balance	77	71
Charges Incurred	22	76
Cash Payments	(62)	(70)
Lease Accretion and Other Adjustments	3
Ending Balance	40	77
Lease and contract obligations, accruals for facilities closures and other costs | Comprehensive Business Review
Restructuring Cost and Reserve [Line Items]
Charges Incurred	19
Cash Payments	(6)
Ending Balance	13
Lease and contract obligations, accruals for facilities closures and other costs | Other restructuring accruals
Restructuring Cost and Reserve [Line Items]
Beginning Balance	14	23
Charges Incurred	(2)	(1)
Cash Payments	(8)	(10)
Lease Accretion and Other Adjustments	1	2
Ending Balance	5	14
Lease and contract obligations, accruals for facilities closures and other costs | Acquired entity accruals
Restructuring Cost and Reserve [Line Items]
Beginning Balance	25	36
Charges Incurred	(3)	3
Cash Payments	(7)	(15)
Lease Accretion and Other Adjustments	3	1
Ending Balance	18	25
Lease and contract obligations, accruals for facilities closures and other costs | Staples acquisition related accruals
Restructuring Cost and Reserve [Line Items]
Beginning Balance	64
Charges Incurred	15	64
Cash Payments	$ (79)
Ending Balance		$ 64