Other Charges - Summary of Activity (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Reserve [Roll Forward]
Beginning balance	$ 320	$ 453
Russia-Ukraine conflict and other charges	40	1,029	$ 273
Less: Cash payments	(158)	(127)
Less: Non-cash charges	12	(1,006)
Foreign currency translation and other	0	(29)
Ending balance	214	320	453
Merger related and other charges
Restructuring Reserve [Roll Forward]
Beginning balance	12	31
Russia-Ukraine conflict and other charges	14	74	(65)
Less: Cash payments	(23)	19
Less: Non-cash charges	12	(109)
Foreign currency translation and other	1	(3)
Ending balance	16	12	31
Total cost reduction program related charges
Restructuring Reserve [Roll Forward]
Beginning balance	308	422
Russia-Ukraine conflict and other charges	26	65	338
Less: Cash payments	(135)	(146)
Less: Non-cash charges	0	(7)
Foreign currency translation and other	(1)	(26)
Ending balance	198	308	422
Total cost reduction program related charges \| Total Russia charges
Restructuring Reserve [Roll Forward]
Beginning balance	0	0
Russia-Ukraine conflict and other charges	0	890
Less: Cash payments	0	0
Less: Non-cash charges	0	(890)
Foreign currency translation and other	0	0
Ending balance	0	0	0
Total cost reduction program related charges \| Severance costs
Restructuring Reserve [Roll Forward]
Beginning balance	281	384
Russia-Ukraine conflict and other charges	26	41	259
Less: Cash payments	(134)	(122)
Less: Non-cash charges	0	0
Foreign currency translation and other	(1)	(22)
Ending balance	172	281	384
Total cost reduction program related charges \| Other cost reduction charges
Restructuring Reserve [Roll Forward]
Beginning balance	27	38
Russia-Ukraine conflict and other charges	0	24	79
Less: Cash payments	(1)	(24)
Less: Non-cash charges	0	(7)
Foreign currency translation and other	0	(4)
Ending balance	$ 26	$ 27	$ 38

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Restructuring Reserve, Charges (Credits) Settled without Cash

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No definition available.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
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