Supplemental Equity and Comprehensive Income Information (Tables)

Changes in Accumulated Other Comprehensive Income (Loss) Attributable to 3M by Component


(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, 2019, net of tax:	$	(1,899)	$	(6,204)	$	(31)	$	(8,134)
Other comprehensive income (loss), before tax:
Amounts before reclassifications	387		(582)		(113)		(308)
Amounts reclassified out	—		619		(71)		548
Total other comprehensive income (loss), before tax	387		37		(184)		240
Tax effect	62		69		42		173
Total other comprehensive income (loss), net of tax	449		106		(142)		413
Balance at December 31, 2020, net of tax:	(1,450)		(6,098)		(173)		(7,721)
Other comprehensive income (loss), before tax:
Amounts before reclassifications	(428)		1,223		108		903
Amounts reclassified out	—		658		47		705
Total other comprehensive income (loss), before tax	(428)		1,881		155		1,608
Tax effect	(65)		(536)		(36)		(637)
Total other comprehensive income (loss), net of tax	(493)		1,345		119		971
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 effect	(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)

Reclassifications out of Accumulated Other Comprehensive Income Attributable to 3M


Details about Accumulated Other Comprehensive Income Components		Amount Reclassified from Accumulated Other Comprehensive Income							Location on Income Statement
	Year ended December 31,
(Millions)			2022		2021		2020
Defined benefit pension and postretirement plans adjustments
Gains (losses) associated with defined benefit pension and postretirement plans amortization
Transition asset			$	(2)	$	(2)	$	(2)	Other (expense) income, net
Prior service benefit			55		60		62		Other (expense) income, net
Net actuarial loss			(493)		(689)		(659)		Other (expense) income, net
Curtailments/Settlements			(18)		(27)		(20)		Other (expense) income, net
Total before tax			(458)		(658)		(619)
Tax effect			108		160		148		Provision for income taxes
Net of tax			(350)		(498)		(471)
Cash flow hedging instruments gains (losses)
Foreign currency forward/option contracts			107		(38)		80		Cost of sales
Interest rate contracts			(9)		(9)		(9)		Interest expense
Total before tax			98		(47)		71
Tax effect			(23)		11		(17)		Provision for income taxes
Net of tax			75		(36)		54
Total reclassifications for the period, net of tax			$	(275)	$	(534)	$	(417)