Quarterly Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Data (Unaudited)

Schedule of Quarterly Financial Information

(Millions, except per-share amounts)	First		Second		Third		Fourth		Year
2017	Quarter		Quarter		Quarter		Quarter		2017
Net sales	$	7,685	$	7,810	$	8,172	$	7,990	$	31,657
Cost of sales		3,882		4,020		4,059		4,094		16,055
Net income including noncontrolling interest		1,326		1,585		1,433		525		4,869
Net income attributable to 3M		1,323		1,583		1,429		523		4,858
Earnings per share attributable to 3M common shareholders - basic		2.21		2.65		2.39		0.88		8.13
Earnings per share attributable to 3M common shareholders - diluted		2.16		2.58		2.33		0.85		7.93

(Millions, except per-share amounts)	First		Second		Third		Fourth		Year
2016	Quarter		Quarter		Quarter		Quarter		2016
Net sales	$	7,409	$	7,662	$	7,709	$	7,329	$	30,109
Cost of sales		3,698		3,817		3,867		3,736		15,118
Net income including noncontrolling interest		1,278		1,293		1,331		1,156		5,058
Net income attributable to 3M		1,275		1,291		1,329		1,155		5,050
Earnings per share attributable to 3M common shareholders - basic		2.10		2.13		2.20		1.93		8.35
Earnings per share attributable to 3M common shareholders - diluted		2.05		2.08		2.15		1.88		8.16