Stockholder's Equity (Stock Option Plans) (Details) - $ / shares	12 Months Ended
	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Shares
Beginning balance (in shares)	2,383,870	2,850,877	2,743,753
Granted (in shares)	520,310	0	612,018
Exercised (in shares)	(687,018)	(386,679)	(424,255)
Canceled or expired (in shares)	(41,720)	(80,328)	(80,639)
Ending balance (in shares)	2,175,442	2,383,870	2,850,877
Options exercisable at end of period (in shares)	1,530,847	1,907,126	1,787,364
Weighted Average Exercise Price
Beginning balance (in USD per share)	$ 63.74	$ 62.37	$ 52.74
Granted (in USD per share)	78.46	0.00	93.85
Exercised (in USD per share)	52.54	49.13	43.18
Canceled or expired (in USD per share)	82.49	85.26	74.70
Ending balance (in USD per share)	70.44	63.74	62.37
Options exercisable at end of period (USD per share)	$ 65.52	$ 57.61	$ 49.30