Consolidated Statement of Income (Loss) (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Net sales	$ 8,003	$ 8,031
Operating expenses
Cost of sales	4,329	4,613
Selling, general and administrative expenses	1,736	1,705
Research, development and related expenses	437	472
Total operating expenses	6,502	6,790
Operating income (loss)	1,501	1,241
Other expense (income), net	264	52
Income (loss) before income taxes	1,237	1,189
Provision (benefit) for income taxes	305	210
Income (loss) of consolidated group	932	979
Income (loss) from unconsolidated subsidiaries, net of taxes	1	2
Net income (loss) including noncontrolling interest	933	981
Less: Net income (loss) attributable to noncontrolling interest	5	5
Net income (loss) attributable to 3M	$ 928	$ 976
Weighted average 3M common shares outstanding - basic (in shares)	555.0	552.7
Earnings (loss) per share attributable to 3M common shareholders — basic (in dollars per share)	$ 1.67	$ 1.77
Weighted average 3M common shares outstanding - diluted (in shares)	555.9	553.2
Earnings (loss) per share attributable to 3M common shareholders — diluted (in dollars per share)	$ 1.67	$ 1.76