Capital Stock (Details) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 25, 2016 USD ($) $ / shares shares
Capital Stock [Abstract]
Amount of common stock Board of Directors authorized to be repurchased after previous authorizations, maximum (in thousands of dollars)	$ 500,000
Number of shares repurchased (in shares) | shares	1,894
Average price per share for the shares repurchased (in dollars per share) | $ / shares	$ 79.86
Purchases of common stock	$ (151,331)
Amount remaining under the authorization	$ 327,990