Commitments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, Rent Expense	$ 231	$ 264	$ 282
Operating Leases, Future Minimum Payments Due, Next Twelve Months	229
Operating Leases, Future Minimum Payments, Due in Two Years	181
Operating Leases, Future Minimum Payments, Due in Three Years	133
Operating Leases, Future Minimum Payments, Due in Four Years	101
Operating Leases, Future Minimum Payments, Due in Five Years	70
Operating Leases, Future Minimum Payments, Due Thereafter	121
Operating Leases, Future Minimum Payments Due	835
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded Unconditional Purchase Obligation	3,200	2,700
Capital Addition Purchase Commitments [Member]
Unrecorded Unconditional Purchase Obligation [Line Items]
Unrecorded Unconditional Purchase Obligation	$ 9,000	$ 12,100