Financial Instruments, Derivatives and Fair Value Measures - Gain or Loss (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Foreign currency forward exchange contracts \| Not designated as hedging instrument
Gain (loss) on derivatives
Income (expense) and Gains (loss) Reclassified into Income	$ (51)	$ 49
Foreign currency forward exchange contracts \| Cash flow hedges \| Designated as hedging instrument \| Cost of products sold
Gain (loss) on derivatives
Gain (loss) Recognized in Other Comprehensive Income (loss)	(49)	134
Income (expense) and Gains (loss) Reclassified into Income	27	(23)
Debt \| Net investment hedges \| Designated as hedging instrument
Gain (loss) on derivatives
Gain (loss) Recognized in Other Comprehensive Income (loss)	30	35
Interest rate swaps \| Fair value hedges \| Designated as hedging instrument \| Interest expense
Gain (loss) on derivatives
Income (expense) and Gains (loss) Reclassified into Income	$ (121)	$ (69)

Amount before tax of reclassification adjustments of other comprehensive income (loss).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 50
-Paragraph 5
-URI https://asc.fasb.org/extlink&oid=124431353&loc=SL124442411-227067

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 17
-URI https://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 50
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=124431353&loc=SL124442407-227067

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
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-URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669686-108580

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
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-Section 50
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-URI https://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 20
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration