Supplemental Balance Sheet Information - Schedule of Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Goodwill [Roll Forward]
Beginning balance	$ 44,020	$ 41,196
Acquisitions	2,302	2,399
Currency translation	(470)	425
Ending balance	45,853	44,020
Life Sciences Solutions
Goodwill [Roll Forward]
Beginning balance	10,151	10,146
Acquisitions	2,302	0
Currency translation	(117)	5
Ending balance	12,336	10,151
Analytical Instruments
Goodwill [Roll Forward]
Beginning balance	5,051	4,965
Acquisitions	0	31
Currency translation	(92)	55
Ending balance	4,959	5,051
Specialty Diagnostics
Goodwill [Roll Forward]
Beginning balance	4,923	3,091
Acquisitions	0	1,741
Currency translation	(139)	91
Ending balance	4,784	4,923
Laboratory Products and Biopharma Services
Goodwill [Roll Forward]
Beginning balance	23,895	22,994
Acquisitions	0	627
Currency translation	(122)	274
Ending balance	$ 23,773	$ 23,895