Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended									12 Months Ended
	Dec. 27, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Sep. 29, 2012	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012	Aug. 31, 2014
Other Intangible Assets [Line Items]
Adjustment to initial allocation of purchase price, property and equipment										$ (16)
Adjustment to initial allocation of purchase price, tax account adjustments										1
Disposal group, including discontinued operation, goodwill	24									24
Impairment Loss											44
Intangible asset impairment										5		14
Asset impairments	11	6	22	50	12	49	4	5	14	88	70	139
Customer Relationships
Other Intangible Assets [Line Items]
Weighted average amortization period for the definite-lived intangible assets (in years)										6 years
Favorable Leases
Other Intangible Assets [Line Items]
Weighted average amortization period for the definite-lived intangible assets (in years)										15 years
Customer Relationships and Trade Names
Other Intangible Assets [Line Items]
Amortization of intangible assets										18	4	5
Trade Names
Other Intangible Assets [Line Items]
Asset impairments										5
Estimated useful life of intangible assets										3 years
Indefinite-lived intangible assets					6						6
Weighted average amortization period for the definite-lived intangible assets (in years)										1 year
Grupo OfficeMax
Other Intangible Assets [Line Items]
Disposal group, including discontinued operation, goodwill													$ 24