Equity Reclassifications Out of AOCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
COGS	$ (9,197)	$ (8,821)	$ (8,155)
SGA	(2,980)	(3,020)	(3,312)
Interest expense	284	287	256
Net experience (gain) loss, pre-tax	(5)	(5)	0
Prior service cost	(1)	0	1
Other (income) expense	(188)	90	(526)
Total before tax	1,305	1,329	1,657
Tax (expense) benefit	(321)	(181)	(410)
Net income	977	1,344	1,254
Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments, Gain (Loss) [Line Items]
Net income	(6)	2	7
Reclassification out of Accumulated Other Comprehensive Income | (Gains) losses on cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Total before tax	4	8	9
Tax (expense) benefit	(1)	(2)	(3)
Net income	3	6	6
Reclassification out of Accumulated Other Comprehensive Income | (Gains) losses on cash flow hedges | Foreign currency exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
COGS	0	0	(1)
Reclassification out of Accumulated Other Comprehensive Income | (Gains) losses on cash flow hedges | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Interest expense	4	8	10
Reclassification out of Accumulated Other Comprehensive Income | Amortization of postretirement and postemployment benefits
Derivative Instruments, Gain (Loss) [Line Items]
Net experience (gain) loss, pre-tax	(5)	(5)	0
Prior service cost	(1)	0	1
Total before tax	(6)	(5)	1
Tax (expense) benefit	1	1	0
Net income	(5)	(4)	1
Reclassification out of Accumulated Other Comprehensive Income | (Gains) losses on available-for-sale securities
Derivative Instruments, Gain (Loss) [Line Items]
Total before tax	(4)	0	0
Tax (expense) benefit	0	0	0
Net income	(4)	0	0
Corporate bonds | Reclassification out of Accumulated Other Comprehensive Income | (Gains) losses on available-for-sale securities
Derivative Instruments, Gain (Loss) [Line Items]
Other (income) expense	$ (4)	$ 0	$ 0