Accounting Policies Impacts of Adoption of Standards Related to Revenue Recognition, Leases and Cash Flow to Previously Reported Results (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Consolidated Balance Sheet
Other Assets	$ 1,068				$ 1,027				$ 1,068	$ 1,027
Other current liabilities	1,416				1,474				1,416	1,474
Deferred income taxes	730				355				730	355
Retained earnings	7,652				7,069				7,652	7,069
Consolidated Statement of Income
Net sales	$ 3,317	$ 3,469	$ 3,360	$ 3,401	$ 3,185	$ 3,246	$ 3,175	$ 3,248	13,547	12,854	$ 12,965
Cost of goods sold									8,821	8,155	8,131
Selling, general and administrative expense									3,020	3,312	3,351
Other income (expense), net									(90)	526	(143)
Income taxes									181	410	235
Net income									$ 1,344	$ 1,254	$ 700
Per share amounts:
Earnings per share, basic	$ (0.24)	$ 1.10	$ 1.72	$ 1.28	$ 1.21	$ 0.83	$ 0.81	$ 0.76	$ 3.85	$ 3.61	$ 1.99
Earnings per share, diluted	$ (0.24)	$ 1.09	$ 1.71	$ 1.27	$ 1.20	$ 0.83	$ 0.80	$ 0.75	$ 3.83	$ 3.58	$ 1.97
Consolidated Statement of Cash Flows
Net income									$ 1,344	$ 1,254	$ 700
Deferred income taxes									46	(58)	(24)
Other									(40)	27	82
Trade receivables									76	(1,300)	(480)
All other current assets and liabilities									(154)	(13)	46
Net cash provided by (used in) operating activities									1,536	403	1,271
Collections of deferred purchase price on securitized trade receivables									0	1,243	501
Net cash provided by (used in) investing activities									(948)	149	(392)
Debt extinguishment costs									0	0	(144)
Net cash provided by (used in) financing activities									$ (566)	(604)	(786)
As previously reported
Consolidated Balance Sheet
Other Assets					$ 1,026					1,026
Other current liabilities					1,431					1,431
Deferred income taxes					363					363
Retained earnings					7,103					7,103
Consolidated Statement of Income
Net sales										12,923	13,014
Cost of goods sold										7,901	8,259
Selling, general and administrative expense										3,076	3,360
Other income (expense), net										(16)	(62)
Income taxes										412	233
Net income										$ 1,269	$ 695
Per share amounts:
Earnings per share, basic										$ 3.65	$ 1.98
Earnings per share, diluted										$ 3.62	$ 1.96
Consolidated Statement of Cash Flows
Net income										$ 1,269	$ 695
Deferred income taxes										(56)	(26)
Other											(62)
Trade receivables										(57)	21
All other current assets and liabilities										(30)	53
Net cash provided by (used in) operating activities										1,646	1,628
Collections of deferred purchase price on securitized trade receivables										0	0
Net cash provided by (used in) investing activities										(1,094)	(893)
Debt extinguishment costs											0
Net cash provided by (used in) financing activities											(642)
Revenue recognition ASU
Consolidated Balance Sheet
Other Assets					1					1
Other current liabilities					43					43
Deferred income taxes					(8)					(8)
Retained earnings					$ (34)					(34)
Consolidated Statement of Income
Net sales										(69)	(49)
Cost of goods sold										(71)	(73)
Selling, general and administrative expense										19	17
Other income (expense), net										0	0
Income taxes										(2)	2
Net income										$ (15)	$ 5
Per share amounts:
Earnings per share, basic										$ (0.04)	$ 0.01
Earnings per share, diluted										$ (0.04)	$ 0.01
Consolidated Statement of Cash Flows
Net income										$ (15)	$ 5
Deferred income taxes										(2)	2
Other											0
Trade receivables										0	0
All other current assets and liabilities										17	(7)
Net cash provided by (used in) operating activities										0	0
Collections of deferred purchase price on securitized trade receivables										0	0
Net cash provided by (used in) investing activities										0	0
Debt extinguishment costs											0
Net cash provided by (used in) financing activities											0
Pension ASU
Consolidated Statement of Income
Net sales										0	0
Cost of goods sold										325	(55)
Selling, general and administrative expense										217	(26)
Other income (expense), net										542	(81)
Income taxes										0	0
Net income										$ 0	$ 0
Per share amounts:
Earnings per share, basic										$ 0.00	$ 0.00
Earnings per share, diluted										$ 0.00	$ 0.00
Consolidated Statement of Cash Flows
Net income										$ 0	$ 0
Cash Flow ASU
Consolidated Statement of Income
Net income										0	0
Consolidated Statement of Cash Flows
Net income										0	0
Deferred income taxes										0	0
Other											144
Trade receivables										(1,243)	(501)
All other current assets and liabilities										0	0
Net cash provided by (used in) operating activities										(1,243)	(357)
Collections of deferred purchase price on securitized trade receivables										1,243	501
Net cash provided by (used in) investing activities										$ 1,243	501
Debt extinguishment costs											(144)
Net cash provided by (used in) financing activities											$ (144)