Segment Information (Segment Results) (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 02, 2021	Apr. 03, 2020
Segment Reporting Information [Line Items]
Sales	$ 6,858	$ 4,343
Operating profit	1,997	698
Other
Segment Reporting Information [Line Items]
Operating profit	(65)	(119)
Life Sciences \| Operating segments
Segment Reporting Information [Line Items]
Sales	3,546	1,650
Operating profit	1,151	326
Diagnostics \| Operating segments
Segment Reporting Information [Line Items]
Sales	2,178	1,627
Operating profit	626	251
Environmental & Applied Solutions \| Operating segments
Segment Reporting Information [Line Items]
Sales	1,134	1,066
Operating profit	$ 285	$ 240

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details