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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Percentage of fair value of reporting unit in excess of carrying amount.

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Derivative Instruments and Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 26, 2015	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Asset impairment charges	$ 3	$ 1	$ 4	$ 5	$ 11	$ 6	$ 22	$ 50	$ 13	$ 88	$ 70
Capitalized computer software impairments										13
Goodwill	378				$ 391				378	391	398
Website
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Asset impairment charges										12
Trade Names
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Asset impairment charges										$ 5
Estimated useful life of trade name										3 years
Retail Stores
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Asset impairment charges									12	$ 25	$ 26
Retail Stores \| Significant Unobservable Inputs (Level 3)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Asset impairment charges									$ 1	$ 5
Percentage used for analysis									12.00%	13.00%	13.00%
Increased payroll costs percentage									2.00%
Increase in impairment charges due to increase in payroll costs									$ 2
Retail Stores \| Significant Unobservable Inputs (Level 3) \| Scenario 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Decrease in sales for scenario									1.00%
Decrease in gross margin for scenario									0.50%
Retail Stores \| Significant Unobservable Inputs (Level 3) \| Scenario 1 \| Additional impairment charges \| Maximum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Asset impairment charges									$ 1
Retail Stores \| Significant Unobservable Inputs (Level 3) \| Scenario 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Decrease in sales for scenario									1.00%
Retail Stores \| Significant Unobservable Inputs (Level 3) \| Scenario 2 \| Additional impairment charges
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Asset impairment charges									$ 2
Abandonment of Software Implementation Project
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Asset impairment charges										$ 28
International Division
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Goodwill												$ 45
Percentage by which fair value exceeds carrying value												30.00%
Goodwill impairment charge											$ 44
Foreign Exchange Contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contracts expiration date									2016-12
Fuel Contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contracts expiration date									2017-01
Derivative Fuel and Foreign Exchange Contracts Payable
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued expenses and other liabilities	$ 2								$ 2