Restatement of Previously Issued Condensed Consolidated Financial Statements Schedule of Restatement of Consolidated Statement of Cash Flows (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Consolidated Statements of Cash Flows
Net income/(loss)	$ 898	$ 618	$ 1,750	$ 2,374
Depreciation and amortization			737	712
Amortization of postretirement benefit plans prior service costs/(credits)			(229)	(261)
Equity award compensation expense			26	44
Deferred income tax provision/(benefit)			(140)	104
Postemployment benefit plan contributions			(23)	(64)
Goodwill and intangible asset impairment losses			1,223	451
Nonmonetary currency devaluation			10	131
Loss/(gain) on sale of business			(490)	15
Other items, net			(34)	20
Trade receivables			138	(2,154)
Inventories			(637)	(645)
Accounts payable			113	130
Other current assets			(73)	(103)
Other current liabilities			(381)	124
Net cash provided by/(used for) operating activities			1,990	878
Cash receipts on sold receivables			0	1,296
Capital expenditures			(581)	(594)
Payments to acquire business, net of cash acquired			(199)	(248)
Proceeds from sale of business, net of cash disposed			1,875	18
Proceeds from issuance of long-term debt			2,967	2,990
Other investing activities, net			16	13
Net cash provided by/(used for) investing activities			1,111	485
Repayments of long-term debt			(3,272)	(2,706)
Proceeds from issuance of commercial paper			377	2,485
Repayments of commercial paper			(377)	(1,950)
Dividends paid			(1,464)	(2,421)
Other financing activities, net			(21)	(35)
Net cash provided by/(used for) financing activities			(1,881)	(1,637)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash			(40)	(128)
Net increase/(decrease)			1,180	(402)
Balance at beginning of period			1,136	1,769
Balance at end of period	$ 2,316	1,367	2,316	1,367
Beneficial interest obtained in exchange for securitized trade receivables			$ 0	938
As Previously Reported
Consolidated Statements of Cash Flows
Net income/(loss)		628		2,376
Depreciation and amortization				736
Amortization of postretirement benefit plans prior service costs/(credits)				(261)
Equity award compensation expense				44
Deferred income tax provision/(benefit)				96
Postemployment benefit plan contributions				(64)
Goodwill and intangible asset impairment losses				499
Nonmonetary currency devaluation				131
Loss/(gain) on sale of business				15
Other items, net				21
Trade receivables				(2,154)
Inventories				(663)
Accounts payable				145
Other current assets				(105)
Other current liabilities				83
Net cash provided by/(used for) operating activities				899
Cash receipts on sold receivables				1,296
Capital expenditures				(594)
Payments to acquire business, net of cash acquired				(248)
Proceeds from sale of business, net of cash disposed				18
Proceeds from sale of business, net of cash disposed				18
Proceeds from issuance of long-term debt				2,990
Other investing activities, net				13
Net cash provided by/(used for) investing activities				485
Repayments of long-term debt				(2,727)
Proceeds from issuance of commercial paper				2,485
Repayments of commercial paper				(1,950)
Dividends paid				(2,421)
Other financing activities, net				(35)
Net cash provided by/(used for) financing activities				(1,658)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash				(128)
Net increase/(decrease)				(402)
Balance at beginning of period				1,769
Balance at end of period		1,367		1,367
Beneficial interest obtained in exchange for securitized trade receivables				938
Restatement | Restatement Impacts
Consolidated Statements of Cash Flows
Net income/(loss)		(10)		(2)
Depreciation and amortization				(24)
Amortization of postretirement benefit plans prior service costs/(credits)				0
Equity award compensation expense				0
Deferred income tax provision/(benefit)				8
Postemployment benefit plan contributions				0
Goodwill and intangible asset impairment losses				(48)
Nonmonetary currency devaluation				0
Loss/(gain) on sale of business				0
Other items, net				(1)
Trade receivables				0
Inventories				18
Accounts payable				(15)
Other current assets				2
Other current liabilities				41
Net cash provided by/(used for) operating activities				(21)
Cash receipts on sold receivables				0
Capital expenditures				0
Payments to acquire business, net of cash acquired				0
Proceeds from sale of business, net of cash disposed				0
Proceeds from issuance of long-term debt				0
Other investing activities, net				0
Net cash provided by/(used for) investing activities				0
Repayments of long-term debt				21
Proceeds from issuance of commercial paper				0
Repayments of commercial paper				0
Dividends paid				0
Other financing activities, net				0
Net cash provided by/(used for) financing activities				21
Effect of exchange rate changes on cash, cash equivalents, and restricted cash				0
Net increase/(decrease)				0
Balance at beginning of period				0
Balance at end of period		$ 0		0
Beneficial interest obtained in exchange for securitized trade receivables				0
Restatement, Capital Leases | Restatement Impacts
Consolidated Statements of Cash Flows
Net cash provided by/(used for) operating activities				(21)
Net cash provided by/(used for) financing activities				(21)
Restatement, Other Misclassifications | Restatement Impacts
Consolidated Statements of Cash Flows
Net cash provided by/(used for) operating activities				(1)
Net cash provided by/(used for) financing activities				$ (1)