Summary of Major Components of Merger, Restructuring and Other Operating (income) Expenses, Net (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 24, 2016	Jun. 25, 2016	Mar. 26, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 31, 2016	Dec. 26, 2015	Dec. 27, 2014
Merger expenses:
Severance, retention, and relocation										$ 15	$ 148
Transaction and integration									$ 37	81	124
Facility closure, contract termination, and other expenses, net									27	44	62
Total Merger related expenses									64	140	334
Staples Acquisition (income) expenses:
Retention									15	65
Transaction									43	37
Termination Fee			$ (250)						(250)
Total Staples Acquisition (income) expenses									(192)	102
Comprehensive Business Review expenses:
Severance									22
Facility closure, contract termination, professional fees and other expenses, net									26
Total Comprehensive Business Review expenses									48
Total Merger, restructuring and other operating (income) expenses, net	$ (43)	$ (31)	$ 193	$ (40)	$ (38)	$ (79)	$ (96)	$ (29)	$ (80)	$ 242	$ 334