Investments and Fair Value Measurements-Cash and Mkt Securities (Details 1) - USD ($) $ in Thousands	Jan. 03, 2016	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Cash, Cash Equivalents and Marketable Securities [Abstract]
Cash and Cash Equivalents	$ 1,478,948	$ 809,003	$ 986,246	$ 995,470
Short-term marketable securities	2,527,245	1,455,509
Long-term marketable securities	117,142	2,758,475
Total cash, cash equivalents and marketable securities	$ 4,123,335	$ 5,022,987