Stock Repurchase Programs (Details) (USD $) In Thousands	3 Months Ended	6 Months Ended
	Jul. 02, 2011	Jul. 02, 2011	Jul. 03, 2010
Repurchase of common shares
Remaining Authorization		$ 814,389
Share repurchased and total cost of repurchased shares
Shares repurchased	0		6,493
Total cost of repurchased shares	0		39,997
February 2008 [Member]
Repurchase of common shares
Amount		500,000
Remaining Authorization		314,389
August 2008 [Member]
Repurchase of common shares
Amount		500,000
Remaining Authorization		$ 500,000