Consolidated Statements of Changes in Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 30, 2012	Jan. 01, 2012	Jan. 02, 2011
Common Stock
Cash dividend per share	$ 1	$ 1	$ 1
Class B Common Stock
Cash dividend per share	$ 1	$ 1	$ 1
Class B common stock shares issued	22,320	22,320	22,320