Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2018

Significant Accounting Policies

Impact on previously reported values after correction

Three months ended March 31, 2017	Previously
(Millions)	Reported		Revised		Change
Net Sales	$	7,685	$	7,685	$	—
Operating expenses
Cost of sales		3,869		3,882		13
Selling, general and administrative expenses		1,600		1,614		14
Research, development and related expenses		471		476		5
Gain on sale of businesses		(29)		(29)		—
Total operating expenses		5,911		5,943		32
Operating income	$	1,774	$	1,742	$	(32)
Other expense (income), net	$	37	$	5	$	(32)
Income before income taxes	$	1,737	$	1,737	$	—

Earnings per share

	Three months ended
	March 31,
(Amounts in millions, except per share amounts)	2018		2017
Numerator:
Net income attributable to 3M	$	602	$	1,323
Denominator:
Denominator for weighted average 3M common shares outstanding – basic		596.2		598.1
Dilution associated with the Company’s stock-based compensation plans		16.5		13.9
Denominator for weighted average 3M common shares outstanding – diluted		612.7		612.0
Earnings per share attributable to 3M common shareholders – basic	$	1.01	$	2.21
Earnings per share attributable to 3M common shareholders – diluted	$	0.98	$	2.16