Discontinued Operations (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 30, 2011		Dec. 31, 2010		Dec. 25, 2009
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from stock sale of subsidiary					$ 21
Tax benefit from gain on sale					3
Income Statement Information
Gain on Sale, After Tax					25
Net Income (Loss) From Discontinued Operations	0		0		15
Earnings Per Share From Discontinued Operations, Assuming Dilution	$ 0.00	[1]	$ 0.00	[1]	$ 0.01	[1]
Greenbrier Hotel Corporation [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total Greenbrier Impairment And Operating Loss Pre Tax					(17)
Total Greenbrier Impairment And Operating Loss After Tax					(10)
Income Statement Information
Revenue					33
Pre-Tax Income (Loss)					5
Net Loss, After Tax					(10)
Gain on Sale, After Tax					25
Net Income (Loss) From Discontinued Operations					$ 15
Earnings Per Share From Discontinued Operations, Assuming Dilution					$ 0.01

[1] All share and per share data were retroactively restated to reflect the three-for-one stock split effective May 31, 2011.