Consolidated Statement of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income (loss) including noncontrolling interest	$ (2,071)	$ 3,863	$ (7,926)	$ 5,248
Other comprehensive income (loss), net of tax:
Cumulative translation adjustment	(365)	(821)	(224)	(1,697)
Defined benefit pension and postretirement plans adjustment	50	86	151	258
Cash flow hedging instruments	21	110	20	197
Total other comprehensive income (loss), net of tax	(294)	(625)	(53)	(1,242)
Comprehensive income (loss) including noncontrolling interest	(2,365)	3,238	(7,979)	4,006
Comprehensive (income) loss attributable to noncontrolling interest	(3)	(2)	(14)	(5)
Comprehensive income (loss) attributable to 3M	$ (2,368)	$ 3,236	$ (7,993)	$ 4,001