Business Segments - Schedule of Business Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024		Sep. 30, 2023
Business Segment Information
Net sales	$ 6,294	$ 6,270	$ 18,565		$ 18,608
Total Company operating income (loss)	1,316	(3,096)	3,737		(11,588)
Gain on business divestitures	0	36	0	[1]	36	[1]
Total operating expenses	4,978	9,366	14,828		30,196
Other expense (income), net	(405)	206	(323)		334
Income (loss) from continuing operations before income taxes	1,721	(3,302)	4,060		(11,922)
Operating Segments
Business Segment Information
Net sales	6,205	6,237	18,346		18,507
Total Company operating income (loss)	1,349	1,324	3,962		3,577
Operating Segments | Safety and Industrial
Business Segment Information
Net sales	2,767	2,751	8,258		8,295
Total Company operating income (loss)	650	666	1,919		1,801
Operating Segments | Transportation and Electronics
Business Segment Information
Net sales	2,139	2,171	6,386		6,412
Total Company operating income (loss)	436	389	1,345		1,093
Operating Segments | Consumer
Business Segment Information
Net sales	1,299	1,315	3,702		3,800
Total Company operating income (loss)	263	269	698		683
Corporate and Unallocated
Business Segment Information
Net sales	81	26	193		71
Net costs for significant litigation	(25)	(4,270)	(96)		(14,709)
Divestiture costs	0	(7)	(20)		(11)
Gain on business divestitures	0	36	0		36
Russia exit (charges) benefits	0	0	0		18
Total corporate special items	(25)	(4,241)	(116)		(14,666)
Other corporate (expense) income - net	(14)	(185)	(87)		(524)
Total operating expenses	(39)	(4,426)	(203)		(15,190)
Other
Business Segment Information
Net sales	8	7	26		30
Total Company operating income (loss)	$ 6	$ 6	$ (22)		$ 25

[1] The Consolidated Statements of Cash Flows include the results of continuing and discontinued operations and, therefore, also include cash and cash equivalents associated with Solventum through its April 2024 separation from 3M that were presented in current assets of discontinued operations in the 3M Consolidated Balance Sheet.