Subsequent Event (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	1 Months Ended	3 Months Ended							12 Months Ended		0 Months Ended
	Jul. 31, 2013	Mar. 31, 2014	Dec. 31, 2013	Oct. 01, 2013	Jul. 02, 2013	Apr. 02, 2013	Jan. 01, 2013	Oct. 02, 2012	Dec. 31, 2013	Jan. 01, 2013	Feb. 27, 2014 Subsequent event	Feb. 10, 2014 Subsequent event	Feb. 27, 2014 Subsequent event Maximum
Subsequent Event
Cash dividends declared per common share (in dollars per share)	$ 0.14	$ 0.14	$ 0.14	$ 0.14	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.52	$ 0.24		$ 0.14
Common stock repurchase authorized amount											$ 75
Common stock repurchase termination period													6 months