Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Consolidated Statement of Comprehensive Income
Net income including noncontrolling interest	$ 1,326	$ 1,278
Other comprehensive income (loss), net of tax:
Cumulative translation adjustment	292	138
Defined benefit pension and postretirement plans adjustment	83	69
Cash flow hedging instruments - unrealized gain (loss)	(76)	(110)
Total other comprehensive income (loss), net of tax	299	97
Comprehensive income (loss) including noncontrolling interest	1,625	1,375
Comprehensive (income) loss attributable to noncontrolling interest	(6)	(2)
Comprehensive income (loss) attributable to 3M	$ 1,619	$ 1,373

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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