Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reclassifications
Gain (Loss) on Investments	$ 49	$ 23	$ 4
Intangible Assets, Gross (Excluding Goodwill)	3,780	3,208
Receivables
Accounts Receivable, Allowance for Credit Loss	122	100
Provision for Other Credit Losses	32	47	23
Inventory Disclosure [Abstract]
Cost of products sold	(79,262)	(59,902)	(60,509)
Net Income (Loss) Attributable to Parent	$ 2,709	$ 1,772	$ 1,379
Diluted earnings per common share (dollars per share)	$ 4.79	$ 3.15	$ 2.44
Inventory, LIFO Reserve, Period Charge		$ 147
Inventory, LIFO Reserve, Period Charge, After-tax		$ 113
Inventory, LIFO Reserve, Period Charge, Per Share		$ 0.20
Cost Method Investments
Equity Securities, FV-NI and without Readily Determinable Fair Value	$ 297	$ 178
Property, Plant, and Equipment
Capitalized interest on major construction projects	17	14	$ 15
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Asset Impairment	52	26	11
Asset Abandonments and Write-Downs
Asset Abandonments and Impairments	73	28	131
Research and Development
Research and development expenses, net of expenditures subsequently reimbursed by government grants	171	160	154
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(22,508)	(20,022)	(19,225)	$ (18,996)
In Process Software
Reclassifications
Intangible Assets, Gross (Excluding Goodwill)	87	172
Change in Accounting Principle, Other [Member]
Inventory Disclosure [Abstract]
Cost of products sold		91
Net Income (Loss) Attributable to Parent		$ 69
Diluted earnings per common share (dollars per share)		$ 0.12
Reinvested Earnings [Member]
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ (21,655)		(18,958)	$ (18,527)
Reinvested Earnings [Member] | Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest			8
Accounting Standards Update 2019-05
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest			8
Accounting Standards Update 2019-05 | Reinvested Earnings [Member]
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest			$ 8
Minimum [Member]
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Asset, Useful Life	1 year
Minimum [Member] | Building [Member]
Property, Plant, and Equipment
Property, Plant and Equipment, Useful Life	15 years
Minimum [Member] | Machinery And Equipment [Member]
Property, Plant, and Equipment
Property, Plant and Equipment, Useful Life	3 years
Maximum [Member]
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-Lived Intangible Asset, Useful Life	50 years
Maximum [Member] | Building [Member]
Property, Plant, and Equipment
Property, Plant and Equipment, Useful Life	40 years
Maximum [Member] | Machinery And Equipment [Member]
Property, Plant, and Equipment
Property, Plant and Equipment, Useful Life	40 years