Supplemental Financial Information (Schedule of Other Supplemental Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 26, 2015	Dec. 27, 2014
Supplemental Financial Information [Abstract]
Operating Leases, Future Minimum Payments, Next Rolling Twelve Months	$ 423
Rent expense	701	$ 696	$ 707
Interest paid	1,102	952	925
Income taxes paid, net of refunds	1,393	$ 1,808	$ 1,847
Operating Leases, Future Minimum Payments, Due in Two Years	374
Operating Leases, Future Minimum Payments, Due in Three Years	289
Operating Leases, Future Minimum Payments, Due in Four Years	197
Operating Leases, Future Minimum Payments, Due in Five Years	147
Operating Leases, Future Minimum Payments, Due Thereafter	350
Operating Leases, Future Minimum Payments Due	$ 1,780