Nature of Operations and Significant Accounting Policies (Details) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2010	Dec. 30, 2011	Dec. 31, 2010	Dec. 25, 2009
Fiscal Year [Abstract]
Number of weeks in fiscal reporting calendar		P52W	P53W	P52W
Number of weeks in fiscal quarter	P14W	P13W
Principles of Consolidation [Abstract]
Maximum percentage of a company's ownership to be carried at cost		20.00%
Cash, Cash Equivalents, and Short-term Investments [Abstract]
Cash equivalents, maximum maturity period		3 months
Short-term investments, minimum maturity period		3 months
Short-term investments, maximum maturity period		1 year
Allowance for Doubtful Accounts [Abstract]
Current portion of allowance for doubtful accounts receivable	$ 38,000,000	$ 43,000,000	$ 38,000,000
Comprehensive Earnings
Comprehensive Income (Loss), Net of Tax, Attributable to Parent		1,700,000,000	1,600,000,000	1,100,000,000
Accumulated Other Comprehensive Income (Loss) [Abstract]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 771,000,000	$ 875,000,000	$ 771,000,000	$ 809,000,000