Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2022

Accounting Policies [Abstract]

Schedule of earnings per share computations

The computations for basic and diluted earnings per share follow:

Earnings Per Share Computations

	Three months ended September 30,				Nine months ended September 30,
(Amounts in millions, except per share amounts)	2022		2021		2022		2021
Numerator:
Net income attributable to 3M	$	3,859	$	1,434	$	5,236	$	4,582
Denominator:
Denominator for weighted average 3M common shares outstanding – basic	568.8		579.6		570.7		580.3
Dilution associated with the Company’s stock-based compensation plans	1.2		6.7		1.9		6.8
Denominator for weighted average 3M common shares outstanding – diluted	570.0		586.3		572.6		587.1
Earnings per share attributable to 3M common shareholders – basic	$	6.79	$	2.47	$	9.18	$	7.90
Earnings per share attributable to 3M common shareholders – diluted	$	6.77	$	2.45	$	9.15	$	7.81