Supplemental Income (Loss) Statement Information - Other Expense (Income), Net (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Other Income and Expenses [Abstract]
Interest expense	$ 276	$ 304	$ 939	$ 571
Interest income	(107)	(72)	(360)	(160)
Pension and postretirement net periodic benefit cost (benefit)	7	(26)	792	(77)
Solventum ownership - change in value	(581)	0	(1,694)	0
Other expense (income), net	$ (405)	$ 206	$ (323)	$ 334

Amount of net periodic benefit cost (credit) for defined benefit plan.

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Amount of gain (loss) on sale or disposal of equity in securities of subsidiaries or equity method investee.

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The amount of interest income and other income recognized during the period. Included in this element is interest derived from investments in debt securities, cash and cash equivalents, and other investments which reflect the time value of money or transactions in which the payments are for the use or forbearance of money and other income from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business).

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