Consolidated Statement of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income including noncontrolling interest	$ 1,180	$ 1,103	$ 3,507	$ 3,383
Other comprehensive income (loss), net of tax:
Cumulative translation adjustment	412	(490)	211	(14)
Defined benefit pension and postretirement plans adjustment	96	77	291	207
Debt and equity securities - unrealized gain (loss)	3	(2)	4	(5)
Cash flow hedging instruments - unrealized gain (loss)	(36)	54	(28)	37
Total other comprehensive income (loss), net of tax	475	(361)	478	225
Comprehensive income (loss) including noncontrolling interest	1,655	742	3,985	3,608
Comprehensive (income) loss attributable to noncontrolling interest	(30)	(32)	(55)	(75)
Comprehensive income (loss) attributable to 3M	$ 1,625	$ 710	$ 3,930	$ 3,533

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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