Quarterly Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2020

Quarterly Data (Unaudited)

Schedule of Quarterly Financial Information

(Millions, except per-share amounts)	First		Second		Third		Fourth		Year
2020	Quarter		Quarter		Quarter		Quarter		2020
Net sales	$	8,075	$	7,176	$	8,350	$	8,583	$	32,184
Cost of sales		4,109		3,805		4,303		4,388		16,605
Net income including noncontrolling interest		1,294		1,287		1,417		1,390		5,388
Net income attributable to 3M		1,292		1,290		1,413		1,389		5,384
Earnings per share attributable to 3M common shareholders - basic		2.24		2.24		2.45		2.40		9.32
Earnings per share attributable to 3M common shareholders - diluted		2.22		2.22		2.43		2.38		9.25

(Millions, except per-share amounts)	First		Second		Third		Fourth		Year
2019	Quarter		Quarter		Quarter		Quarter		2019
Net sales	$	7,863	$	8,171	$	7,991	$	8,111	$	32,136
Cost of sales		4,310		4,313		4,188		4,325		17,136
Net income including noncontrolling interest		893		1,131		1,588		970		4,582
Net income attributable to 3M		891		1,127		1,583		969		4,570
Earnings per share attributable to 3M common shareholders - basic		1.54		1.95		2.75		1.68		7.92
Earnings per share attributable to 3M common shareholders - diluted		1.51		1.92		2.72		1.66		7.81