Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
Dec. 29, 2012	Dec. 31, 2011
Income Tax Contingency [Line Items]
Significant change in reserve for uncertain tax positions is reasonably possible, amount of decrease	$ 1,500,000,000
Total gross amount of reserves for income taxes	2,425,000,000
Interest accrued	670,000,000	660,000,000
Interest accrued recognized	10,000,000	90,000,000
Operating loss carryforwards	10,400,000,000
Income tax undistributed international earnings	32,200,000,000
Expire in 2013 [Member]
Income Tax Contingency [Line Items]
Operating loss carryforwards	200,000,000
Expire Between 2014 and 2032 Years [Member]
Income Tax Contingency [Line Items]
Operating loss carryforwards	8,200,000,000
Carried Forward Indefinitely [Member]
Income Tax Contingency [Line Items]
Operating loss carryforwards	$ 2,000,000,000

Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiaries and other recognized entities not within the country of domicile of the entity.

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This element represents the amount of interest expense accrued as of the date of the statement of financial position for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity.

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- Definition

This element represents interest expense recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity.

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