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Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Income Taxes [Abstract]
Effective income tax rate	28.00%	31.00%
Uncertain tax positions classified as a net current liability	$ 15
Projected additions	9
Unrecognized tax benefits that would affect the Company's effective income tax rate	$ 59

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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