Income Taxes Income Taxes (Details) In Millions, unless otherwise specified	3 Months Ended		0 Months Ended	51 Months Ended	0 Months Ended	3 Months Ended
	Mar. 28, 2014	Mar. 29, 2013	Dec. 10, 2013 Denmark, Kroner Foreign Tax Authority [Member] DKK	Mar. 28, 2014 Denmark, Kroner Foreign Tax Authority [Member] DKK	Mar. 28, 2014 United States of America, Dollars Foreign Tax Authority [Member] USD ($)	Mar. 29, 2013 Apex [Member]
Effective income tax rate reconciliation, percent	23.90%	25.00%
Effective income tax rate reconciliation, at Federal statutory income tax rate, percent	35.00%	35.00%
Effective income tax rate, discrete item increase, percent						3.50%
Income tax examination, amount of tax assessments			1,100		$ 200
Income tax examination, amount of potential additional tax assessments				800	$ 150