Asset Impairments, Exit Costs And Other Charges (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
	Dec. 25, 2010	Dec. 31, 2011	Dec. 25, 2010	Dec. 26, 2009
Asset Impairments, Exit Costs And Other Charges [Line Items]
Abandonment of software under development	$ 51,000,000		$ 51,000,000
Severance cost, required payment period, days		60 days
Accretion charges		12,000,000	14,000,000
Restructuring charges		58,000,000	87,000,000	253,000,000
International Division [Member]
Asset Impairments, Exit Costs And Other Charges [Line Items]
Restructuring charges		31,000,000	23,000,000
Chief Executive Officer [Member]
Asset Impairments, Exit Costs And Other Charges [Line Items]
Severance, accelerated vesting of share-based awards and compensation-related costs	13,000,000		13,000,000
Facility Closure [Member]
Asset Impairments, Exit Costs And Other Charges [Line Items]
Restructuring charges				253,000,000
Software Application [Member] | International Division [Member]
Asset Impairments, Exit Costs And Other Charges [Line Items]
Pre-tax loss on sale of operating subsidiaries and other costs			$ 23,000,000