Income Taxes (Narrative) (Details) DKK in Millions, $ in Millions			3 Months Ended		12 Months Ended	36 Months Ended
	Apr. 01, 2016 USD ($)	Dec. 10, 2013 DKK	Apr. 01, 2016	Apr. 03, 2015	Dec. 31, 2015	Dec. 31, 2012 DKK
Income Tax Examination [Line Items]
Effective income tax rate, percent			27.30%	23.40%
Federal statutory income tax rate, percent			35.00%		35.00%
Gain on sale of marketable equity securities, percent			2.70%
Denmark, kroner | Foreign tax authority
Income Tax Examination [Line Items]
Income tax examination, amount of tax assessments | DKK		DKK 1,300
Income tax examination, amount of potential additional tax assessments | DKK						DKK 760
United States of America, dollars | Foreign tax authority
Income Tax Examination [Line Items]
Income tax examination, amount of tax assessments | $	$ 196
Income tax examination, amount of potential additional tax assessments | $	$ 116