Income Taxes Income Taxes (Schedule of Unrecognized Tax Benefits Rollforward) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized Tax Benefits, Beginning Balance	$ 315us-gaap_UnrecognizedTaxBenefits	$ 314us-gaap_UnrecognizedTaxBenefits	$ 205us-gaap_UnrecognizedTaxBenefits
Unrecognized Tax Benefits, Increases Related to Current Period Tax Positions	67	74	38
Unrecognized Tax Benefits, Increases Related to Prior Period Tax Positions	6	33	90
Unrecognized Tax Benefits, Reductions Related to Prior Period Tax Positions	(27)	(16)	(18)
Unrecognized Tax Benefits, Reductions related to Settlements/Payments	(27)	(90)	(1)
Unrecognized Tax Benefits, Expiration of the statute of limitations for the assessment of taxes	(6)	0	0
Unrecognized Tax Benefits, Ending Balance	$ 328us-gaap_UnrecognizedTaxBenefits	$ 315us-gaap_UnrecognizedTaxBenefits	$ 314us-gaap_UnrecognizedTaxBenefits

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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-Publisher FASB

-Name Accounting Standards Codification

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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-Publisher FASB

-Name Accounting Standards Codification

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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