Supplemental Financial Information (Schedule of Other Supplemental Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Supplemental Financial Information [Abstract]
Tax payments related to the TCJ Act	$ 78	$ 423	$ 115
Cash and cash equivalents	8,185	5,509
Rent expense			771
Interest paid	1,156	1,076	1,388
Income taxes paid, net of refunds	1,770	2,226	1,203
Restricted Cash, Noncurrent	69	61
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 8,254	$ 5,570	$ 10,769	$ 10,657