Revenue (Revenue Disaggregation by Geographical Region and Revenue Type) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Sales	$ 29,453	$ 22,284	$ 17,911
North America
Disaggregation of Revenue [Line Items]
Sales	11,829	9,011	7,012
Western Europe
Disaggregation of Revenue [Line Items]
Sales	6,965	5,323	4,057
Other developed markets
Disaggregation of Revenue [Line Items]
Sales	1,475	1,299	1,112
High-growth markets
Disaggregation of Revenue [Line Items]
Sales	9,184	6,651	5,730
Recurring
Disaggregation of Revenue [Line Items]
Sales	21,795	15,978	12,307
Nonrecurring
Disaggregation of Revenue [Line Items]
Sales	7,658	6,306	5,604
Operating segments | Life Sciences
Disaggregation of Revenue [Line Items]
Sales	14,958	10,576	6,951
Operating segments | Life Sciences | North America
Disaggregation of Revenue [Line Items]
Sales	5,433	3,919	2,596
Operating segments | Life Sciences | Western Europe
Disaggregation of Revenue [Line Items]
Sales	4,037	2,939	1,876
Operating segments | Life Sciences | Other developed markets
Disaggregation of Revenue [Line Items]
Sales	876	754	585
Operating segments | Life Sciences | High-growth markets
Disaggregation of Revenue [Line Items]
Sales	4,612	2,964	1,894
Operating segments | Life Sciences | Recurring
Disaggregation of Revenue [Line Items]
Sales	10,528	7,400	4,411
Operating segments | Life Sciences | Nonrecurring
Disaggregation of Revenue [Line Items]
Sales	4,430	3,176	2,540
Operating segments | Diagnostics
Disaggregation of Revenue [Line Items]
Sales	9,844	7,403	6,561
Operating segments | Diagnostics | North America
Disaggregation of Revenue [Line Items]
Sales	4,365	3,182	2,531
Operating segments | Diagnostics | Western Europe
Disaggregation of Revenue [Line Items]
Sales	1,840	1,375	1,132
Operating segments | Diagnostics | Other developed markets
Disaggregation of Revenue [Line Items]
Sales	481	423	402
Operating segments | Diagnostics | High-growth markets
Disaggregation of Revenue [Line Items]
Sales	3,158	2,423	2,496
Operating segments | Diagnostics | Recurring
Disaggregation of Revenue [Line Items]
Sales	8,607	6,143	5,524
Operating segments | Diagnostics | Nonrecurring
Disaggregation of Revenue [Line Items]
Sales	1,237	1,260	1,037
Operating segments | Environmental & Applied Solutions
Disaggregation of Revenue [Line Items]
Sales	4,651	4,305	4,399
Operating segments | Environmental & Applied Solutions | North America
Disaggregation of Revenue [Line Items]
Sales	2,031	1,910	1,885
Operating segments | Environmental & Applied Solutions | Western Europe
Disaggregation of Revenue [Line Items]
Sales	1,088	1,009	1,049
Operating segments | Environmental & Applied Solutions | Other developed markets
Disaggregation of Revenue [Line Items]
Sales	118	122	125
Operating segments | Environmental & Applied Solutions | High-growth markets
Disaggregation of Revenue [Line Items]
Sales	1,414	1,264	1,340
Operating segments | Environmental & Applied Solutions | Recurring
Disaggregation of Revenue [Line Items]
Sales	2,660	2,435	2,372
Operating segments | Environmental & Applied Solutions | Nonrecurring
Disaggregation of Revenue [Line Items]
Sales	$ 1,991	$ 1,870	$ 2,027