Earnings Per Share (Narrative) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		0 Months Ended
	Mar. 29, 2015	Mar. 30, 2014	Apr. 09, 2015	Sep. 28, 2014
Class of Stock [Line Items]
Common stock, par value	0.001			$ 0.001
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Out-of-the-money options	0.1	5.7
Subsequent Event [Member]
Class of Stock [Line Items]
Stock split conversion ratio			2
Common stock, par value			$ 0.001