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Share-Based Compensation (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended
	Mar. 30, 2012	Apr. 01, 2011	Dec. 25, 2009
Share-based Compensation
Share-Based Compensation Expense	0	12
Income Tax Benefit	0	4
Stock Options
Share-based Compensation
Number of Stock Options Exercised	1,299,000	3,278,000
Number of Stock Options Expired or Cancelled	15,000	0
Future expense related to vested options			$ 0
Number of Stock Options Outstanding	3,000,000

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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- Definition

Number of share options (or share units) exercised during the current period.

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