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Income Taxes (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Income Taxes [Abstract]
Effective income tax rate	30.00%	26.00%	29.00%	28.00%
Uncertain tax positions classified as a net current liability	$ 19		$ 19
Projected additions	9		9
Unrecognized tax benefits that would affect the Company's effective income tax rate	$ 58		$ 58

- 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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