Financial Instruments and Fair Value Measures - Financial Instruments (Details) SFr in Millions, $ in Millions, € in Billions, kr in Billions	9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 EUR (€)	Sep. 30, 2023 SEK (kr)	Sep. 30, 2023 CAD ($)	Sep. 30, 2023 CHF (SFr)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 EUR (€)	Dec. 31, 2022 SEK (kr)	Dec. 31, 2022 CAD ($)	Dec. 31, 2022 CHF (SFr)	Dec. 31, 2019 USD ($)
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	309,000,000						$ 163,000,000
Fair value - Derivatives in liability position	531,000,000						524,000,000
Designated as hedging instrument | Net investment hedges | Senior notes
Derivative instruments, notional amount and fair value
Principal amount of unsecured senior notes | €			€ 5.4					€ 5.9
Designated as hedging instrument | Foreign currency forward exchange contracts | Cash flow hedges
Derivative instruments, notional amount and fair value
Notional amount of derivative instruments	$ 2,500,000,000						1,700,000,000
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	$ 90,000,000						49,000,000
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	3,000,000						8,000,000
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						1,000,000
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	0						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			€ 4.9	kr 1.4	$ 750	SFr 50		€ 4.3	kr 2.0	$ 750	SFr 90
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	32,000,000						6,000,000
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	29,000,000						36,000,000
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	157,000,000						74,000,000
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	9,000,000						47,000,000
Designated as hedging instrument | Treasury rate lock agreements | Cash flow hedges
Derivative instruments, notional amount and fair value
Notional amount of derivative instruments												$ 10,000,000,000
Designated as hedging instrument | Cross-currency swap contracts | Cash flow hedges
Derivative instruments, notional amount and fair value
Notional amount of derivative instruments	433,000,000
Designated as hedging instrument | Cross-currency swap contracts | Cash flow hedges | Prepaid expenses and other
Derivative instruments, notional amount and fair value
Fair value - Derivatives in asset position	0						0
Designated as hedging instrument | Cross-currency swap contracts | Cash flow hedges | Accounts payable and accrued liabilities
Derivative instruments, notional amount and fair value
Fair value - Derivatives in liability position	5,000,000						0
Designated as hedging instrument | Interest rate swap contracts | Fair value hedges
Derivative instruments, notional amount and fair value
Notional amount of derivative instruments	5,000,000,000						4,500,000,000
Designated as hedging instrument | Interest rate swap contracts | Fair value hedges | Prepaid expenses and other
Derivative instruments, notional amount and fair value
Fair value - Derivatives in asset position	0						0
Designated as hedging instrument | Interest rate swap contracts | Fair value hedges | Accounts payable and accrued liabilities
Derivative instruments, notional amount and fair value
Fair value - Derivatives in liability position	2,000,000						17,000,000
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	0						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	434,000,000						375,000,000
Not designated as hedging instrument | Foreign currency forward exchange contracts
Derivative instruments, notional amount and fair value
Notional amount of derivative instruments	6,800,000,000						6,500,000,000
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	30,000,000						33,000,000
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	$ 49,000,000						$ 41,000,000