Financial Instruments (Narrative) (Details) (USD $)	12 Months Ended
Dec. 28, 2013	Dec. 29, 2012
Derivatives, Fair Value [Line Items]
Percentage of revenue from outside operations, net	49.00%
Specified percentage of revenue from total outside operations, net	25.00%
Debt instrument, fair value	$ 29,700,000,000	$ 30,500,000,000
Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Derivative maturity term, maximum	2 years
Expected reclassification of net losses related to hedge from accumulated OCI into net income within the next 12 months	11,000,000
Derivative, Notional Amount	2,500,000,000	2,800,000,000
Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Expected reclassification of net losses related to hedge from accumulated OCI into net income within the next 12 months	23,000,000
Derivative, Notional Amount	7,900,000,000	8,100,000,000
Percentage of total debt, net of related interest rate derivatives, exposed to variable interest rates		27.00%
Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative maturity term, maximum	3 years
Expected reclassification of net losses related to hedge from accumulated OCI into net income within the next 12 months	26,000,000
Designated as Hedging Instrument \| Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	494,000,000	507,000,000
Not Designated as Hedging Instrument \| Commodity Contracts
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	$ 881,000,000	$ 853,000,000
Interest Rate Contracts
Derivatives, Fair Value [Line Items]
Percentage of total debt, net of related interest rate derivatives, exposed to variable interest rates	31.00%

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

+ Details

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- Definition

Revenues from external customers attributed to all foreign countries in total from which the entity derives revenues, percentage of total revenue.

+ References

No definition available.

+ Details

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- Definition

Percentage of revenue from external customers attributed to an individual foreign country from which revenue is material. An entity also may provide subtotals of geographic information about groups of countries.

+ References

No definition available.

+ Details

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- Definition

The portion of the carrying amount of long-term borrowings outstanding as of the balance-sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

+ References

No definition available.

+ Details

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- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80748-113994

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=28364263&loc=d3e13476-108611

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- Definition

High end period remaining until maturity for the derivative contract, 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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