Supplemental Equity and Comprehensive Income (Loss) Information (Tables)

6 Months Ended

Jun. 30, 2024

Stockholders' Equity Note [Abstract]

Schedule of Consolidated Statement of Changes in Equity

The table below presents the consolidated changes in equity for three and six months ended June 30, 2024 and 2023:

			3M Company Shareholders
(Millions)	Total		Common Stock and Additional Paid-in Capital		Retained Earnings		Treasury Stock		Accumulated Other Comprehensive Income (Loss)		Non-controlling Interest
Balance at March 31, 2024	$	4,933	$	6,982	$	37,472	$	(32,762)	$	(6,826)	$	67
Net income (loss)	1,151				1,145						6
Other comprehensive income (loss), net of tax	674								675		(1)
Solventum spin-off	(2,169)				(2,753)				584
Dividends declared	(386)				(386)
Stock-based compensation	173		173
Reacquired stock	(400)						(400)
Issuances pursuant to stock option and benefit plans	12				(3)		15
Balance at June 30, 2024	$	3,988	$	7,155	$	35,475	$	(33,147)	$	(5,567)	$	72
Balance at March 31, 2023	$	15,351	$	6,825	$	47,966	$	(32,963)	$	(6,530)	$	53
Net income	(6,836)				(6,841)						5
Other comprehensive income (loss), net of tax	98								97		1
Dividends declared	(828)				(828)
Stock-based compensation	42		42
Issuances pursuant to stock option and benefit plans	30				(7)		37
Balance at June 30, 2023	$	7,857	$	6,867	$	40,290	$	(32,926)	$	(6,433)	$	59

			3M Company Shareholders
(Millions)	Total		Common Stock and Additional Paid-in Capital		Retained Earnings		Treasury Stock		Accumulated Other Comprehensive Income (Loss)		Non-controlling Interest
Balance at December 31, 2023	$	4,868	$	6,965	$	37,479	$	(32,859)	$	(6,778)	$	61
Net income (loss)	2,084				2,073						11
Total other comprehensive income (loss), net of tax	627								627		—
Solventum spin-off	(2,169)				(2,753)				584
Dividends declared	(1,221)				(1,221)
Stock-based compensation	190		190
Reacquired stock	(421)						(421)
Issuances pursuant to stock option and benefit plans	30				(103)		133
Balance at June 30, 2024	$	3,988	$	7,155	$	35,475	$	(33,147)	$	(5,567)	$	72
Balance at December 31, 2022	$	14,770	$	6,700	$	47,950	$	(33,255)	$	(6,673)	$	48
Net income	(5,855)				(5,865)						10
Total other comprehensive income (loss), net of tax	241								240		1
Dividends declared	(1,655)				(1,655)
Stock-based compensation	167		167
Reacquired stock	(29)						(29)
Issuances pursuant to stock option and benefit plans	218				(140)		358
Balance at June 30, 2023	$	7,857	$	6,867	$	40,290	$	(32,926)	$	(6,433)	$	59

Schedule of Changes in Accumulated Other Comprehensive Income (Loss) Attributable to 3M

The table below presents the changes in accumulated other comprehensive income (loss) attributable to 3M (AOCI), including the reclassifications out of AOCI by component for three and six months ended June 30, 2024 and 2023:

(Millions)	Cumulative Translation Adjustment		Defined Benefit Pension and Postretirement Plans Adjustment		Cash Flow Hedging Instruments, Unrealized Gain (Loss)		Total Accumulated Other Comprehensive Income (Loss)
Balance at March 31, 2024, net of tax:	$	(2,715)	$	(4,083)	$	(28)	$	(6,826)
Other comprehensive income (loss), before tax:
Amounts before reclassifications	(148)		218		23		93
Amounts reclassified out	11		876		(30)		857
Total other comprehensive income (loss), before tax	(137)		1,094		(7)		950
Tax effect2	(7)		(268)		—		(275)
Total other comprehensive income (loss), net of tax	(144)		826		(7)		675
Solventum spin-off	64		520		—		584
Balance at June 30, 2024, net of tax:	$	(2,795)	$	(2,737)	$	(35)	$	(5,567)
Balance at March 31, 2023, net of tax:	$	(2,712)	$	(3,787)	$	(31)	$	(6,530)
Other comprehensive income (loss), before tax:
Amounts before reclassifications	3		—		72		75
Amounts reclassified out	39		65		(40)		64
Total other comprehensive income (loss), before tax	42		65		32		139
Tax effect2	(18)		(15)		(9)		(42)
Total other comprehensive income (loss), net of tax	24		50		23		97
Balance at June 30, 2023, net of tax:	$	(2,688)	$	(3,737)	$	(8)	$	(6,433)

(Millions)	Cumulative Translation Adjustment		Defined Benefit Pension and Postretirement Plans Adjustment		Cash Flow Hedging Instruments, Unrealized Gain (Loss)		Total Accumulated Other Comprehensive Income (Loss)
Balance at December 31, 2023, net of tax:	$	(2,506)	$	(4,218)	$	(54)	$	(6,778)
Other comprehensive income (loss), before tax:
Amounts before reclassifications	(401)		285		84		(32)
Amounts reclassified out	68		972		(57)		983
Total other comprehensive income (loss), before tax	(333)		1,257		27		951
Tax effect2	(20)		(296)		(8)		(324)
Total other comprehensive income (loss), net of tax	(353)		961		19		627
Solventum spin-off	64		520		—		584
Balance at June 30, 2024, net of tax:	$	(2,795)	$	(2,737)	$	(35)	$	(5,567)
Balance at December 31, 2022, net of tax:	$	(2,828)	$	(3,838)	$	(7)	$	(6,673)
Other comprehensive income (loss), before tax:
Amounts before reclassifications	108		—		78		186
Amounts reclassified out	39		129		(81)		87
Total other comprehensive income (loss), before tax	147		129		(3)		273
Tax effect2	(7)		(28)		2		(33)
Total other comprehensive income (loss), net of tax	140		101		(1)		240
Balance at June 30, 2023, net of tax:	$	(2,688)	$	(3,737)	$	(8)	$	(6,433)

Includes tax expense (benefit) reclassified out of AOCI related to the following:

	Three months ended June 30,				Six months ended June 30,
(millions)	2024		2023		2024		2023
Cumulative Translation Adjustment	$	—	$	—	$	—	$	—
Defined benefit pension and postretirement plans adjustment	(216)		(15)		(229)		(28)
Cash flow hedging instruments, unrealized gain/loss	7		8		13		18