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Financial Instruments and Fair Value Measures - Financial Instruments (Details) SFr in Millions, $ in Millions, € in Billions, kr in Billions	9 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 EUR (€)	Sep. 30, 2025 SEK (kr)	Sep. 30, 2025 CAD ($)	Sep. 30, 2025 CHF (SFr)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 EUR (€)	Dec. 31, 2024 SEK (kr)	Dec. 31, 2024 CAD ($)	Dec. 31, 2024 CHF (SFr)
Derivative instruments, notional amount and fair value
Amount excluded from the assessment of effectiveness for cash flow hedges	$ 0	$ 0
Amount excluded from the assessment of effectiveness for fair value hedges	0	$ 0
Fair value - Derivatives in asset position	125,000,000						$ 313,000,000
Fair value - Derivatives in liability position	690,000,000						266,000,000
Designated as hedging instrument \| Net investment hedges \| Senior notes
Derivative instruments, notional amount and fair value
Principal amount of unsecured senior notes \| €			€ 3.1					€ 3.1
Designated as hedging instrument \| Foreign currency forward exchange contracts \| Cash flow hedges
Derivative instruments, notional amount and fair value
Notional amount of derivative instruments	$ 3,300,000,000						1,900,000,000
Duration of forward exchange contracts	18 months
Approximate length of time over which accumulated gains and losses will be recognized in Cost of products sold	6 months
Designated as hedging instrument \| Foreign currency forward exchange contracts \| Cash flow hedges \| Prepaid expenses and other
Derivative instruments, notional amount and fair value
Fair value - Derivatives in asset position	$ 29,000,000						119,000,000
Designated as hedging instrument \| Foreign currency forward exchange contracts \| Cash flow hedges \| Accounts payable and accrued liabilities
Derivative instruments, notional amount and fair value
Fair value - Derivatives in liability position	73,000,000						5,000,000
Designated as hedging instrument \| Foreign currency forward exchange contracts \| Cash flow hedges \| Other assets
Derivative instruments, notional amount and fair value
Fair value - Derivatives in asset position	0						0
Designated as hedging instrument \| Foreign currency forward exchange contracts \| Cash flow hedges \| Other long-term liabilities
Derivative instruments, notional amount and fair value
Fair value - Derivatives in liability position	1,000,000						0
Designated as hedging instrument \| Foreign currency forward exchange contracts \| Net investment hedges
Derivative instruments, notional amount and fair value
Notional amount of derivative instruments			€ 6.5	kr 1.9	$ 500	SFr 80		€ 6.2	kr 1.4	$ 500	SFr 50
Designated as hedging instrument \| Foreign currency forward exchange contracts \| Net investment hedges \| Prepaid expenses and other
Derivative instruments, notional amount and fair value
Fair value - Derivatives in asset position	0						4,000,000
Designated as hedging instrument \| Foreign currency forward exchange contracts \| Net investment hedges \| Accounts payable and accrued liabilities
Derivative instruments, notional amount and fair value
Fair value - Derivatives in liability position	165,000,000						0
Designated as hedging instrument \| Foreign currency forward exchange contracts \| Net investment hedges \| Other assets
Derivative instruments, notional amount and fair value
Fair value - Derivatives in asset position	0						148,000,000
Designated as hedging instrument \| Foreign currency forward exchange contracts \| Net investment hedges \| Other long-term liabilities
Derivative instruments, notional amount and fair value
Fair value - Derivatives in liability position	326,000,000						0
Designated as hedging instrument \| Interest rate swap contracts \| Fair value hedges
Derivative instruments, notional amount and fair value
Notional amount of derivative instruments	3,500,000,000						3,500,000,000
Designated as hedging instrument \| Interest rate swap contracts \| Fair value hedges \| Other assets
Derivative instruments, notional amount and fair value
Fair value - Derivatives in asset position	67,000,000						0
Designated as hedging instrument \| Interest rate swap contracts \| Fair value hedges \| Other long-term liabilities
Derivative instruments, notional amount and fair value
Fair value - Derivatives in liability position	106,000,000						231,000,000
Not designated as hedging instrument \| Foreign currency forward exchange contracts
Derivative instruments, notional amount and fair value
Notional amount of derivative instruments	10,100,000,000						5,900,000,000
Not designated as hedging instrument \| Foreign currency forward exchange contracts \| Prepaid expenses and other
Derivative instruments, notional amount and fair value
Fair value - Derivatives in asset position	29,000,000						42,000,000
Not designated as hedging instrument \| Foreign currency forward exchange contracts \| Accounts payable and accrued liabilities
Derivative instruments, notional amount and fair value
Fair value - Derivatives in liability position	$ 19,000,000						$ 30,000,000