Consolidated Statement of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income including noncontrolling interest	$ 3,863	$ 1,437	$ 5,248	$ 4,589
Other comprehensive income (loss), net of tax:
Cumulative translation adjustment	(821)	(302)	(1,697)	(354)
Defined benefit pension and postretirement plans adjustment	86	119	258	359
Cash flow hedging instruments	110	48	197	95
Total other comprehensive income (loss), net of tax	(625)	(135)	(1,242)	100
Comprehensive income (loss) including noncontrolling interest	3,238	1,302	4,006	4,689
Comprehensive (income) loss attributable to noncontrolling interest	(2)	(2)	(5)	(6)
Comprehensive income (loss) attributable to 3M	$ 3,236	$ 1,300	$ 4,001	$ 4,683