Schedule of Components of Deferred Income Tax Assets and Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Components Of Deferred Income Tax Assets And Liabilities [Line Items]
U.S. and foreign net operating loss carryforwards	$ 322	$ 314
Deferred rent credit	80	97
Pension and other accrued compensation	184	170
Accruals for facility closings	45	38
Inventory	23	25
Self-insurance accruals	33	33
Deferred revenue	39	34
U.S. and foreign income tax credit carryforwards	246	234
Allowance for bad debts	5	8
Accrued expenses	80	60
Basis difference in fixed assets	59	15
Other items, net	8	6
Gross deferred tax assets	1,124	1,034
Valuation allowance	(804)	(683)
Deferred tax assets	320	351
Internal software	8	22
Installment gain on sale of timberlands	251	258
Deferred Subpart F income	27	23
Undistributed foreign earnings	2	12
Deferred tax liabilities	288	315
Net deferred tax assets	$ 32	$ 36