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Derivative instruments - Narrative (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Derivative [Line Items]
Length of time hedged in foreign currency contracts (or less)	3 years
Notes | 3.625% notes due 2024 (3.625% 2024 Notes)
Derivative [Line Items]
Interest rate, stated percentage	3.625%
Notes | 5.25% notes due 2033 (5.25% 2033 Notes)
Derivative [Line Items]
Interest rate, stated percentage	5.25%
Foreign currency forward contracts | Designated as Hedging Instrument
Derivative [Line Items]
Notional amounts	$ 7,100	$ 6,600
Foreign currency forward contracts | Derivatives not designated as hedging instrument
Derivative [Line Items]
Notional amounts	82	457
Interest Rate Swap | 3.625% notes due 2024 (3.625% 2024 Notes)
Derivative [Line Items]
Notional amounts	1,400
Interest Rate Swap | 5.25% notes due 2033 (5.25% 2033 Notes)
Derivative [Line Items]
Notional amounts	$ 1,400
Derivative, basis spread on variable rate	1.80%
Interest Rate Swap | Designated as Hedging Instrument
Derivative [Line Items]
Notional amounts	$ 6,700	$ 6,700

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(a)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

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- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480237/815-40-50-5

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-1A

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- Definition

Maximum period of hedging exposure to variability in future cash flows for forecasted transaction of foreign currency cash flow hedge, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Excludes forecasted transaction for payment of variable interest on existing financial instrument.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-SubTopic 30
-Topic 815
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480870/815-30-50-1

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