Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2011

Significant Accounting Policies

Earnings per share

	Three months ended June 30,				Six months ended June 30,
(Amounts in millions, except per share amounts)	2011		2010		2011		2010
Numerator:
Net income attributable to 3M	$	1,160	$	1,121	$	2,241	$	2,051
Denominator:
Denominator for weighted average 3M common shares outstanding — basic	713.4		714.5		712.5		713.1
Dilution associated with the Company’s stock-based compensation plans	13.1		11.2		13.9		11.5
Denominator for weighted average 3M common shares outstanding — diluted	726.5		725.7		726.4		724.6
Earnings per share attributable to 3M common shareholders — basic	$	1.63	$	1.57	$	3.15	$	2.88
Earnings per share attributable to 3M common shareholders — diluted	$	1.60	$	1.54	$	3.09	$	2.83