Supplemental Income Statement Information (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Other Income and Expenses [Abstract]
Interest expense	$ 214	$ 255
Interest income	(49)	(79)
Pension and postretirement net periodic benefit cost (benefit)	(2)	28
Solventum ownership - change in value	356	(343)
Total	519	(139)
Interest expense	106	$ 110
Unrealized gain on investments	$ 1,100		$ 1,500