Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2015

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)	2015		2014		2015		2014
Numerator:
Net income attributable to 3M	$	1,296	$	1,303	$	3,795	$	3,777
Denominator:
Denominator for weighted average 3M common shares outstanding — basic		620.6		645.3		629.4		652.9
Dilution associated with the Company’s stock-based compensation plans		10.6		12.6		11.8		12.8
Denominator for weighted average 3M common shares outstanding — diluted		631.2		657.9		641.2		665.7
Earnings per share attributable to 3M common shareholders — basic	$	2.09	$	2.02	$	6.03	$	5.78
Earnings per share attributable to 3M common shareholders — diluted	$	2.05	$	1.98	$	5.92	$	5.67