Net Income (Loss) Per Share (Components Of Basic And Diluted Income (Loss) Per Share) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Earnings Per Share [Abstract]
Numerator for basic income (loss) per share	$ 37	$ 61	$ (553)	$ 571
Interest expense and amortization of financing cost	0	0	0	15
Numerator for basic and diluted net income (loss) per share	$ 37	$ 61	$ (553)	$ 586
Denominator for basic and diluted income (loss) per share	739	724	737	722
Employee stock options and restricted stock units	16	19	0	20
5.75% convertible senior notes	0	0		24
Denominator for basic and diluted income (loss) per share	755	743	737	766
Basic	$ 0.05	$ 0.08	$ (0.75)	$ 0.79
Diluted	$ 0.05	$ 0.08	$ (0.75)	$ 0.76

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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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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.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The after-tax amount of interest recognized in the period associated with any convertible debt.

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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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

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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.

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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.

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