Segment Information (Segment Results) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Sales	$ 31,471	$ 29,453	$ 22,284
Operating profit	8,688	7,465	4,231
Depreciation and amortization of intangible assets	2,222	2,168	1,775
Identifiable assets	84,350	83,184	76,161
Capital expenditures, gross	1,152	1,294	791
Other
Segment Reporting Information [Line Items]
Operating profit	(305)	(269)	(340)
Depreciation and amortization of intangible assets	9	7	10
Identifiable assets	9,723	5,362	7,117
Capital expenditures, gross	6	1	2
Biotechnology | Operating segments
Segment Reporting Information [Line Items]
Sales	8,758	8,570	5,276
Operating profit	3,008	3,074	1,082
Depreciation and amortization of intangible assets	1,002	1,059	761
Identifiable assets	37,536	38,118	39,086
Capital expenditures, gross	405	385	169
Life Sciences | Operating segments
Segment Reporting Information [Line Items]
Sales	7,036	6,388	5,300
Operating profit	1,414	1,293	972
Depreciation and amortization of intangible assets	531	382	292
Identifiable assets	17,572	19,768	9,833
Capital expenditures, gross	325	210	137
Diagnostics | Operating segments
Segment Reporting Information [Line Items]
Sales	10,849	9,844	7,403
Operating profit	3,436	2,313	1,538
Depreciation and amortization of intangible assets	590	614	602
Identifiable assets	14,722	15,054	15,042
Capital expenditures, gross	382	644	447
Environmental & Applied Solutions
Segment Reporting Information [Line Items]
Sales	4,800
Environmental & Applied Solutions | Operating segments
Segment Reporting Information [Line Items]
Sales	4,828	4,651	4,305
Operating profit	1,135	1,054	979
Depreciation and amortization of intangible assets	90	106	110
Identifiable assets	4,797	4,882	5,083
Capital expenditures, gross	$ 34	$ 54	$ 36