Earnings per Share (Tables)

3 Months Ended

Apr. 02, 2022

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three months ended
	April 2,		April 3,
(In millions except per share amounts)	2022		2021
Net income attributable to Thermo Fisher Scientific Inc.	$	2,215	$	2,337
Basic weighted average shares	392		394
Plus effect of: stock options and restricted stock units	3		3
Diluted weighted average shares	395		397
Basic earnings per share	$	5.66	$	5.93
Diluted earnings per share	$	5.61	$	5.88
Antidilutive stock options excluded from diluted weighted average shares	2		1