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

3 Months Ended

Mar. 31, 2024

Stockholders' Equity Note [Abstract]

Schedule of Consolidated Statement of Changes in Equity

			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)	933				928						5
Other comprehensive income (loss), net of tax	(47)								(48)		1
Dividends declared	(835)				(835)
Stock-based compensation	17		17
Reacquired stock	(21)						(21)
Issuances pursuant to stock option and benefit plans	18				(100)		118
Balance at March 31, 2024	$	4,933	$	6,982	$	37,472	$	(32,762)	$	(6,826)	$	67
Balance at December 31, 2022	$	14,770	$	6,700	$	47,950	$	(33,255)	$	(6,673)	$	48
Net income	981				976						5
Other comprehensive income (loss), net of tax	143								143		—
Dividends declared	(827)				(827)
Stock-based compensation	125		125
Reacquired stock	(29)						(29)
Issuances pursuant to stock option and benefit plans	188				(133)		321
Balance at March 31, 2023	$	15,351	$	6,825	$	47,966	$	(32,963)	$	(6,530)	$	53

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

(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	(253)		67		61		(125)
Amounts reclassified out	57		96		(27)		126
Total other comprehensive income (loss), before tax	(196)		163		34		1
Tax effect (1)	(13)		(28)		(8)		(49)
Total other comprehensive income (loss), net of tax	(209)		135		26		(48)
Balance at March 31, 2024, net of tax:	$	(2,715)	$	(4,083)	$	(28)	$	(6,826)
Balance at December 31, 2022, net of tax:	$	(2,828)	$	(3,838)	$	(7)	$	(6,673)
Other comprehensive income (loss), before tax:
Amounts before reclassifications	105		—		6		111
Amounts reclassified out	—		64		(41)		23
Total other comprehensive income (loss), before tax	105		64		(35)		134
Tax effect (1)	11		(13)		11		9
Total other comprehensive income (loss), net of tax	116		51		(24)		143
Balance at March 31, 2023, net of tax:	$	(2,712)	$	(3,787)	$	(31)	$	(6,530)

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

	Three months ended March 31,
(millions)	2024	2023
Cumulative Translation Adjustment	—	—
Defined benefit pension and postretirement plans adjustment	(13)	(13)
Cash flow hedging instruments, unrealized gain/loss	6	10