Our Significant Accounting Policies (Details) (USD $)	12 Months Ended
Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Property, Plant and Equipment [Line Items]
Sales Allowances, Goods	$ 35,800,000,000us-gaap_SalesAllowancesGoods	$ 34,700,000,000us-gaap_SalesAllowancesGoods	$ 34,700,000,000us-gaap_SalesAllowancesGoods
Research and Development Expense	718,000,000us-gaap_ResearchAndDevelopmentExpense	665,000,000us-gaap_ResearchAndDevelopmentExpense	552,000,000us-gaap_ResearchAndDevelopmentExpense
Software amortization	208,000,000	197,000,000	196,000,000
Net capitalized software and development costs	900,000,000us-gaap_CapitalizedComputerSoftwareNet	1,100,000,000us-gaap_CapitalizedComputerSoftwareNet
Marketing and Advertising Expense	$ 3,900,000,000us-gaap_MarketingAndAdvertisingExpense	$ 3,900,000,000us-gaap_MarketingAndAdvertisingExpense	$ 3,700,000,000us-gaap_MarketingAndAdvertisingExpense
Minimum \| Software
Property, Plant and Equipment [Line Items]
Software estimated useful lives	5 years
Maximum \| Software
Property, Plant and Equipment [Line Items]
Software estimated useful lives	10 years

For each income statement presented, the amount charged to expense for amortization of capitalized computer software costs.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 20

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128487-111756

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 20

-Section 50

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-Subparagraph (b)

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The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

-SubTopic 20

-Section 50

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- Definition

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.

+ References

No definition available.

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The total expense recognized in the period for promotion, public relations, and brand or product advertising.

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- Definition

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 985

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-Paragraph 1

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- Definition

The aggregate selling price reductions recognized during an accounting period including, but not limited to, the sale of defective or nonconforming goods, a strategy to increase sales (generally over the short-term), move slow-moving items, develop distribution channels, or reward valuable customers. Allowances are a deduction from gross revenue in arriving at net revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(a))

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-Name Regulation S-X (SX)

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