Consolidated Statements of Shareholders' Equity (Deficit) (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Statement of Stockholders' Equity [Abstract]
Translation adjustments and gains (losses) from intra-entity transactions of a long-term investment nature (tax impact)	$ (3)	$ 3	$ 5
Pension and post-retirement benefit plans (tax impact)	(48)	65	10
Employee stock option and SARs exercises (tax impact)	(89)	(71)	(73)
Compensation-related events (tax impact)	(11)	(5)	(7)
Tax (expense) benefit on net unrealized gain (loss) on derivative instruments	$ 0	$ 0	$ 1

Tax effect, net of reclassification adjustments, of the change in the balance sheet adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency of the reporting entity. Also includes the following: gain (loss) on foreign currency forward exchange contracts; foreign currency transactions designated as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; and gain (loss) on a derivative instrument or nonderivative financial instrument that may give rise to a foreign currency transaction gain (loss) that has been designated and qualified as a hedging instrument for hedging of the foreign currency exposure of a net investment in a foreign operation.

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Tax effect of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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