Quarterly Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2010

Quarterly Data (Unaudited)

Quarterly Data (Unaudited)

(Millions, except per-share amounts) 2010	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Year 2010
Net sales	$	6,348	$	6,731	$	6,874	$	6,709	$	26,662
Cost of sales	3,238		3,435		3,583		3,575		13,831
Net income attributable to 3M	930		1,121		1,106		928		4,085
Earnings per share attributable to 3M common shareholders — basic	1.31		1.57		1.55		1.30		5.72
Earnings per share attributable to 3M common shareholders — diluted	1.29		1.54		1.53		1.28		5.63

(Millions, except per-share amounts) 2009	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Year 2009
Net sales	$	5,089	$	5,719	$	6,193	$	6,122	$	23,123
Cost of sales	2,772		2,977		3,171		3,189		12,109
Net income attributable to 3M	518		783		957		935		3,193
Earnings per share attributable to 3M common shareholders — basic	0.75		1.12		1.36		1.32		4.56
Earnings per share attributable to 3M common shareholders — diluted	0.74		1.12		1.35		1.30		4.52