Consolidated Statement of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021
Revenues
Revenues	$ 10,677	$ 9,330	$ 33,465	$ 28,509
Costs and operating expenses:
Selling, general and administrative expenses	2,208	2,004	6,694	5,729
Research and development expenses	351	351	1,080	1,014
Restructuring and other costs	33	18	59	151
Total costs and operating expenses	8,967	7,052	26,933	21,019
Operating income	1,710	2,278	6,532	7,490
Interest income	68	9	122	32
Interest expense	(173)	(128)	(457)	(375)
Other income/(expense)	(4)	18	(139)	(168)
Income before income taxes	1,601	2,177	6,058	6,979
Provision for income taxes	(31)	(271)	(530)	(906)
Equity in earnings/(losses) of unconsolidated entities	(72)	(3)	(142)	(4)
Net income	1,498	1,903	5,386	6,069
Less: net income attributable to noncontrolling interests and redeemable noncontrolling interest	3	1	12	2
Net income	$ 1,495	$ 1,902	$ 5,374	$ 6,067
Earnings per share attributable to Thermo Fisher Scientific Inc.
Basic (in dollars per share)	$ 3.82	$ 4.83	$ 13.72	$ 15.41
Diluted (in dollars per share)	$ 3.79	$ 4.79	$ 13.62	$ 15.29
Weighted average shares
Basic (in shares)	392	394	392	394
Diluted (in shares)	395	397	395	397
Product revenues
Revenues
Revenues	$ 6,583	$ 7,360	$ 21,603	$ 22,430
Costs and operating expenses:
Cost of revenues	3,494	3,298	10,565	9,977
Service revenues
Revenues
Revenues	4,094	1,970	11,862	6,079
Costs and operating expenses:
Cost of revenues	$ 2,881	$ 1,381	$ 8,535	$ 4,148