Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2018

Significant Accounting Policies

Impact on previously reported values after correction

Three months ended September 30, 2017	Previously
(Millions)	Reported		Revised		Change
Net Sales	$	8,172	$	8,172	$	—
Operating expenses
Cost of sales		4,045		4,059		14
Selling, general and administrative expenses		1,623		1,637		14
Research, development and related expenses		463		468		5
Gain on sale of businesses		—		—		—
Total operating expenses		6,131		6,164		33
Operating income	$	2,041	$	2,008	$	(33)
Other expense (income), net	$	44	$	11	$	(33)
Income before income taxes	$	1,997	$	1,997	$	—

Nine months ended September 30, 2017	Previously
(Millions)	Reported		Revised		Change
Net Sales	$	23,667	$	23,667	$	—
Operating expenses
Cost of sales		11,921		11,961		40
Selling, general and administrative expenses		4,830		4,871		41
Research, development and related expenses		1,407		1,422		15
Gain on sale of businesses		(490)		(490)		—
Total operating expenses		17,668		17,764		96
Operating income	$	5,999	$	5,903	$	(96)
Other expense (income), net	$	123	$	27	$	(96)
Income before income taxes	$	5,876	$	5,876	$	—

Earnings per share

	Three months ended				Nine months ended
	September 30,				September 30,
(Amounts in millions, except per share amounts)	2018		2017		2018		2017
Numerator:
Net income attributable to 3M	$	1,543	$	1,429	$	4,002	$	4,335
Denominator:
Denominator for weighted average 3M common shares outstanding – basic		585.6		597.6		591.1		597.9
Dilution associated with the Company’s stock-based compensation plans		12.8		15.1		14.0		14.6
Denominator for weighted average 3M common shares outstanding – diluted		598.4		612.7		605.1		612.5
Earnings per share attributable to 3M common shareholders – basic	$	2.64	$	2.39	$	6.77	$	7.25
Earnings per share attributable to 3M common shareholders – diluted	$	2.58	$	2.33	$	6.61	$	7.08