Other Financial Statement Details Interest and Other, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 26, 2015
Other Nonoperating Income (Expense) [Abstract]
Interest income	$ 441	$ 222	$ 124
Interest expense	(646)	(733)	(337)
Other, net	(30)	67	108
Total Interest and other, net	(235)	(444)	(105)
Interest Costs, Capitalized During Period	$ 313	$ 135	$ 258