Goodwill and Other Intangible Assets (Goodwill by Segment) (Details) - USD ($) $ in Millions	Apr. 01, 2022	Dec. 31, 2021
Goodwill [Line Items]
Total goodwill	$ 40,663	$ 41,184
Operating segments | Life Sciences
Goodwill [Line Items]
Total goodwill	31,158	31,638
Operating segments | Diagnostics
Goodwill [Line Items]
Total goodwill	7,012	7,044
Operating segments | Environmental & Applied Solutions
Goodwill [Line Items]
Total goodwill	$ 2,493	$ 2,502