Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2017

Significant Accounting Policies

Earnings per share

Earnings Per Share Computations

	Three months ended				Nine months ended
	September 30,				September 30,
(Amounts in millions, except per share amounts)	2017		2016		2017		2016
Numerator:
Net income attributable to 3M	$	1,429	$	1,329	$	4,335	$	3,895
Denominator:
Denominator for weighted average 3M common shares outstanding – basic		597.6		604.4		597.9		606.2
Dilution associated with the Company’s stock-based compensation plans		15.1		14.4		14.6		14.1
Denominator for weighted average 3M common shares outstanding –  diluted		612.7		618.8		612.5		620.3
Earnings per share attributable to 3M common shareholders – basic	$	2.39	$	2.20	$	7.25	$	6.43
Earnings per share attributable to 3M common shareholders – diluted	$	2.33	$	2.15	$	7.08	$	6.28