Capital Stock (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	1 Months Ended	12 Months Ended
	Feb. 09, 2015	Dec. 28, 2014 Position
Capital Stock [Abstract]
Amount of common stock Board of Directors authorized to be repurchased after previous authorizations, maximum (in thousands of dollars)	$ 500,000	$ 500,000
Number of previous authorizations of stock repurchases by the Board of Directors (in number of authorizations)		6
Cumulative authorized repurchase amount of the previous 6 authorizations		2,825,000
Number of shares repurchased (in shares)		8,490
Average price per share for the shares repurchased (in dollars per share)		$ 54.26
Purchases of common stock		460,840
Amount remaining under the authorization		$ 64,151