Segment Information (Segment Results) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 29, 2023	Sep. 30, 2022	Sep. 29, 2023	Sep. 30, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Sales	$ 6,873	$ 7,663	$ 21,197	$ 23,102
Operating profit	1,438	2,015	4,661	6,392
Other
Segment Reporting Information [Line Items]
Operating profit	(117)	(77)	(333)	(221)
Biotechnology | Operating segments
Segment Reporting Information [Line Items]
Sales	1,664	2,053	5,413	6,535
Operating profit	417	691	1,493	2,315
Life Sciences | Operating segments
Segment Reporting Information [Line Items]
Sales	1,706	1,723	5,211	5,090
Operating profit	313	354	974	1,022
Diagnostics | Operating segments
Segment Reporting Information [Line Items]
Sales	2,254	2,679	6,861	7,884
Operating profit	539	761	1,640	2,447
Environmental & Applied Solutions
Segment Reporting Information [Line Items]
Sales					$ 4,800
Environmental & Applied Solutions | Operating segments
Segment Reporting Information [Line Items]
Sales	1,249	1,208	3,712	3,593
Operating profit	$ 286	$ 286	$ 887	$ 829