Summary of Revenues, Income (Loss) Before Taxes, and Gain (Loss) on Dispositions, Net of Income Tax (Detail) (USD $) In Millions	3 Months Ended	6 Months Ended
Jun. 17, 2011	Jun. 18, 2010	Jun. 17, 2011	Jun. 18, 2010
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	$ 2	$ 5	$ 3	$ 9
Loss before income taxes	(3)		(4)	(3)
Loss on dispositions, net of tax		$ (1)		$ (1)

Gain (loss) after tax expense or benefit, not previously recognized and resulting from the sale of a business component, which is recognized at the date of sale. A gain (loss) reflects the amount by which the consideration received exceeds (is exceeded by) the net carrying amount (reflecting previous provisions for loss on disposal, if any) of the disposal group.

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Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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