Net Income (Loss) Per Share (Schedule Of Components Of Basic And Diluted Income (Loss) Per Share) (Details) (USD $) In Millions, except Per Share data	3 Months Ended	9 Months Ended
Oct. 01, 2011	Sep. 25, 2010	Oct. 01, 2011	Sep. 25, 2010
Net Income (Loss) Per Share [Abstract]
Numerator for basic and diluted income (loss) per share	$ 97	$ (118)	$ 668	$ 96
Denominator for basic net income (loss) per share	729	713	725	710
Employee stock options and restricted stock units	12		17	22
Denominator for diluted net income (loss) per share	741	713	742	732
Basic	$ 0.13	$ (0.17)	$ 0.92	$ 0.13
Diluted	$ 0.13	$ (0.17)	$ 0.90	$ 0.13

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References+ Details

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

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+ Details

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References+ Details

- Definition

Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

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-Glossary Weighted-Average Number of Common Shares Outstanding

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