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

12 Months Ended

Dec. 31, 2024

Stockholders' Equity Note [Abstract]

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 the year ended December 31, 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 December 31, 2021, net of tax:						$	(1,943)					$	(4,753)					$	(54)					$	(6,750)
Other comprehensive income (loss), before tax:
Amounts before reclassifications						(850)						866						159						175
Amounts reclassified out						—						458						(98)						360
Total other comprehensive income (loss), before tax						(850)						1,324						61						535
Tax effect2						(35)						(409)						(14)						(458)
Total other comprehensive income (loss), net of tax						(885)						915						47						77
Balance at December 31, 2022, net of tax:						(2,828)						(3,838)						(7)						(6,673)
Other comprehensive income (loss), before tax:
Amounts before reclassifications						277						(763)						81						(405)
Amounts reclassified out						54						252						(143)						163
Total other comprehensive income (loss), before tax						331						(511)						(62)						(242)
Tax effect2						(9)						131						15						137
Total other comprehensive income (loss), net of tax						322						(380)						(47)						(105)
Balance at December 31, 2023, net of tax:						(2,506)						(4,218)						(54)						(6,778)
Other comprehensive income (loss), before tax:
Amounts before reclassifications						(563)						123						128						(312)
Amounts reclassified out						38						1,127						(78)						1,087
Total other comprehensive income (loss), before tax						(525)						1,250						50						775
Tax effect2						14						(315)						(11)						(312)
Total other comprehensive income (loss), net of tax						(511)						935						39						463
Solventum spin-off						64						520						—						584
Balance at December 31, 2024, net of tax:						$	(2,953)					$	(2,763)					$	(15)					$	(5,731)

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

			(millions)																		2024						2023						2022
			Cumulative Translation Adjustment																		$	—					$	—					$	—
			Defined benefit pension and postretirement plans adjustment																		(268)						(60)						(108)
			Cash flow hedging instruments, unrealized gain/loss																		18						33						23

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- Definition

Tabular disclosure of the components of accumulated other comprehensive income (loss).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481694/830-30-45-20

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- References

No definition available.

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