Consolidated Statement of Income (Loss) (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024		Sep. 30, 2023
Income Statement [Abstract]
Net sales	$ 6,294	$ 6,270	$ 18,565		$ 18,608
Operating expenses
Cost of sales	3,647	3,716	10,703		11,188
Selling, general and administrative expenses	1,062	5,419	3,322		18,182
Research, development and related expenses	269	267	803		862
Gain on business divestitures	0	(36)	0	[1]	(36)	[1]
Total operating expenses	4,978	9,366	14,828		30,196
Operating income (loss)	1,316	(3,096)	3,737		(11,588)
Other expense (income), net	(405)	206	(323)		334
Income (loss) from continuing operations before income taxes	1,721	(3,302)	4,060		(11,922)
Provision (benefit) for income taxes	348	(777)	771		(2,893)
Income (loss) from continuing operations of consolidated group	1,373	(2,525)	3,289		(9,029)
Income (loss) from unconsolidated subsidiaries, net of taxes	3	2	7		7
Net income (loss) from continuing operations including noncontrolling interest	1,376	(2,523)	3,296		(9,022)
Less: Net income (loss) attributable to noncontrolling interest	4	4	15		14
Net income (loss) from continuing operations attributable to 3M	1,372	(2,527)	3,281		(9,036)
Net income (loss) from discontinued operations, net of taxes	0	452	164		1,096
Net income (loss) attributable to 3M	$ 1,372	$ (2,075)	$ 3,445		$ (7,940)
Weighted average 3M common shares outstanding - basic (in shares)	550.6	554.3	553.1		553.7
Earnings (loss) per share from continuing operations — basic (in dollars per share)	$ 2.49	$ (4.56)	$ 5.93		$ (16.32)
Earnings (loss) per share from discontinued operations — basic (in dollars per share)	0	0.82	0.30		1.98
Earnings (loss) per share — basic (in dollars per share)	$ 2.49	$ (3.74)	$ 6.23		$ (14.34)
Weighted average 3M common shares outstanding - diluted (in shares)	552.7	554.3	554.5		553.7
Earnings (loss) per share from continuing operations — diluted (in dollars per share)	$ 2.48	$ (4.56)	$ 5.92		$ (16.32)
Earnings (loss) per share from discontinued operations — diluted (in dollars per share)	0	0.82	0.29		1.98
Earnings (loss) per share — diluted (in dollars per share)	$ 2.48	$ (3.74)	$ 6.21		$ (14.34)

[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.