Revenue (Revenue Disaggregation by Geographical Region and Revenue Type) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Sales	$ 31,471	$ 29,453	$ 22,284
North America
Disaggregation of Revenue [Line Items]
Sales	13,968	11,829	9,011
Western Europe
Disaggregation of Revenue [Line Items]
Sales	6,910	6,965	5,323
Other developed markets
Disaggregation of Revenue [Line Items]
Sales	1,467	1,475	1,299
High-growth markets
Disaggregation of Revenue [Line Items]
Sales	9,126	9,184	6,651
Recurring
Disaggregation of Revenue [Line Items]
Sales	23,717	21,795	15,978
Nonrecurring
Disaggregation of Revenue [Line Items]
Sales	7,754	7,658	6,306
Environmental & Applied Solutions
Disaggregation of Revenue [Line Items]
Sales	4,800
Operating segments | Biotechnology
Disaggregation of Revenue [Line Items]
Sales	8,758	8,570	5,276
Operating segments | Biotechnology | North America
Disaggregation of Revenue [Line Items]
Sales	3,054	2,899	1,880
Operating segments | Biotechnology | Western Europe
Disaggregation of Revenue [Line Items]
Sales	2,645	2,497	1,683
Operating segments | Biotechnology | Other developed markets
Disaggregation of Revenue [Line Items]
Sales	358	368	313
Operating segments | Biotechnology | High-growth markets
Disaggregation of Revenue [Line Items]
Sales	2,701	2,806	1,400
Operating segments | Biotechnology | Recurring
Disaggregation of Revenue [Line Items]
Sales	6,958	6,772	4,299
Operating segments | Biotechnology | Nonrecurring
Disaggregation of Revenue [Line Items]
Sales	1,800	1,798	977
Operating segments | Life Sciences
Disaggregation of Revenue [Line Items]
Sales	7,036	6,388	5,300
Operating segments | Life Sciences | North America
Disaggregation of Revenue [Line Items]
Sales	3,154	2,534	2,039
Operating segments | Life Sciences | Western Europe
Disaggregation of Revenue [Line Items]
Sales	1,377	1,540	1,256
Operating segments | Life Sciences | Other developed markets
Disaggregation of Revenue [Line Items]
Sales	506	508	441
Operating segments | Life Sciences | High-growth markets
Disaggregation of Revenue [Line Items]
Sales	1,999	1,806	1,564
Operating segments | Life Sciences | Recurring
Disaggregation of Revenue [Line Items]
Sales	4,220	3,756	3,101
Operating segments | Life Sciences | Nonrecurring
Disaggregation of Revenue [Line Items]
Sales	2,816	2,632	2,199
Operating segments | Diagnostics
Disaggregation of Revenue [Line Items]
Sales	10,849	9,844	7,403
Operating segments | Diagnostics | North America
Disaggregation of Revenue [Line Items]
Sales	5,522	4,365	3,182
Operating segments | Diagnostics | Western Europe
Disaggregation of Revenue [Line Items]
Sales	1,837	1,840	1,375
Operating segments | Diagnostics | Other developed markets
Disaggregation of Revenue [Line Items]
Sales	481	481	423
Operating segments | Diagnostics | High-growth markets
Disaggregation of Revenue [Line Items]
Sales	3,009	3,158	2,423
Operating segments | Diagnostics | Recurring
Disaggregation of Revenue [Line Items]
Sales	9,698	8,607	6,143
Operating segments | Diagnostics | Nonrecurring
Disaggregation of Revenue [Line Items]
Sales	1,151	1,237	1,260
Operating segments | Environmental & Applied Solutions
Disaggregation of Revenue [Line Items]
Sales	4,828	4,651	4,305
Operating segments | Environmental & Applied Solutions | North America
Disaggregation of Revenue [Line Items]
Sales	2,238	2,031	1,910
Operating segments | Environmental & Applied Solutions | Western Europe
Disaggregation of Revenue [Line Items]
Sales	1,051	1,088	1,009
Operating segments | Environmental & Applied Solutions | Other developed markets
Disaggregation of Revenue [Line Items]
Sales	122	118	122
Operating segments | Environmental & Applied Solutions | High-growth markets
Disaggregation of Revenue [Line Items]
Sales	1,417	1,414	1,264
Operating segments | Environmental & Applied Solutions | Recurring
Disaggregation of Revenue [Line Items]
Sales	2,841	2,660	2,435
Operating segments | Environmental & Applied Solutions | Nonrecurring
Disaggregation of Revenue [Line Items]
Sales	$ 1,987	$ 1,991	$ 1,870