Consolidated Statement of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales	$ 8,031	$ 8,829
Operating expenses
Cost of sales	4,613	4,826
Selling, general and administrative expenses	1,705	1,882
Research, development and related expenses	472	480
Total operating expenses	6,790	7,188
Operating income	1,241	1,641
Other expense (income), net	52	38
Income before income taxes	1,189	1,603
Provision for income taxes	210	302
Income of consolidated group	979	1,301
Income (loss) from unconsolidated subsidiaries, net of taxes	2	2
Net income including noncontrolling interest	981	1,303
Less: Net income (loss) attributable to noncontrolling interest	5	4
Net income attributable to 3M	$ 976	$ 1,299
Weighted average 3M common shares outstanding - basic (in shares)	552.7	572.3
Earnings per share attributable to 3M common shareholders - basic (in dollars per share)	$ 1.77	$ 2.27
Weighted average 3M common shares outstanding - diluted (in shares)	553.2	575.0
Earnings per share attributable to 3M common shareholders - diluted (in dollars per share)	$ 1.76	$ 2.26