Income Taxes Income Taxes (Details) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		0 Months Ended	54 Months Ended	0 Months Ended
	Jun. 27, 2014	Jun. 28, 2013	Jun. 27, 2014	Jun. 28, 2013	Dec. 10, 2013 Denmark, Kroner Foreign Tax Authority [Member] DKK	Jun. 27, 2014 Denmark, Kroner Foreign Tax Authority [Member] DKK	Jun. 27, 2014 United States of America, Dollars Foreign Tax Authority [Member] USD ($)
Effective income tax rate reconciliation, percent	23.00%	23.50%	23.40%	24.30%
Effective income tax rate reconciliation, at Federal statutory income tax rate, percent			35.00%	35.00%
Income tax examination, amount of tax assessments					1,100		$ 205
Income tax examination, amount of potential additional tax assessments						825	$ 150