Supplemental Equity and Comprehensive Income Information (Tables)

6 Months Ended

Jun. 30, 2022

Stockholders' Equity Note [Abstract]

Consolidated statement of changes in equity

Consolidated Changes in Equity

Three months ended June 30, 2022

			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, 2022	$	15,004	$	6,568	$	46,056	$	(30,860)	$	(6,834)	$	74
Net income	82				78						4
Other comprehensive income (loss), net of tax:
Cumulative translation adjustment	(705)								(701)		(4)
Defined benefit pension and post-retirement plans adjustment	85								85
Cash flow hedging instruments	88								88
Total other comprehensive income (loss), net of tax	(532)
Dividends declared	(848)				(848)
Stock-based compensation	48		48
Reacquired stock	—						—
Issuances pursuant to stock option and benefit plans	62				(17)		79
Balance at June 30, 2022	$	13,816	$	6,616	$	45,269	$	(30,781)	$	(7,362)	$	74

Six months ended June 30, 2022

			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, 2021	$	15,117	$	6,438	$	45,821	$	(30,463)	$	(6,750)	$	71
Net income	1,385				1,377						8
Other comprehensive income (loss), net of tax:
Cumulative translation adjustment	(876)								(871)		(5)
Defined benefit pension and post-retirement plans adjustment	172								172
Cash flow hedging instruments	87								87
Total other comprehensive income (loss), net of tax	(617)
Dividends declared	(1,700)				(1,700)
Stock-based compensation	178		178
Reacquired stock	(773)						(773)
Issuances pursuant to stock option and benefit plans	226				(229)		455
Balance at June 30, 2022	$	13,816	$	6,616	$	45,269	$	(30,781)	$	(7,362)	$	74

Three months ended June 30, 2021

			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, 2021	$	13,828	$	6,292	$	44,255	$	(29,020)	$	(7,767)	$	68
Net income	1,525				1,524						1
Other comprehensive income (loss), net of tax:
Cumulative translation adjustment	170								171		(1)
Defined benefit pension and post-retirement plans adjustment	121								121
Cash flow hedging instruments	(11)								(11)
Total other comprehensive income (loss), net of tax	280
Dividends declared	(858)				(858)
Stock-based compensation	54		54
Reacquired stock	(499)						(499)
Issuances pursuant to stock option and benefit plans	186				(97)		283
Balance at June 30, 2021	$	14,516	$	6,346	$	44,824	$	(29,236)	$	(7,486)	$	68

Six months ended June 30, 2021

			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, 2020	$	12,931	$	6,171	$	43,821	$	(29,404)	$	(7,721)	$	64
Net income	3,152				3,148						4
Other comprehensive income (loss), net of tax:
Cumulative translation adjustment	(52)								(52)		—
Defined benefit pension and post-retirement plans adjustment	240								240
Cash flow hedging instruments	47								47
Total other comprehensive income (loss), net of tax	235
Dividends declared	(1,716)				(1,716)
Stock-based compensation	175		175
Reacquired stock	(742)						(742)
Issuances pursuant to stock option and benefit plans	481				(429)		910
Balance at June 30, 2021	$	14,516	$	6,346	$	44,824	$	(29,236)	$	(7,486)	$	68

Changes in accumulated other comprehensive income (loss) attributable to 3M

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

Three months ended June 30, 2022

(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, 2022, net of tax:	$	(2,113)	$	(4,666)	$	(55)	$	(6,834)
Other comprehensive income (loss), before tax:
Amounts before reclassifications	(664)		—		128		(536)
Amounts reclassified out	—		112		(15)		97
Total other comprehensive income (loss), before tax	(664)		112		113		(439)
Tax effect	(37)		(27)		(25)		(89)
Total other comprehensive income (loss), net of tax	(701)		85		88		(528)
Balance at June 30, 2022, net of tax:	$	(2,814)	$	(4,581)	$	33	$	(7,362)

Six months ended June 30, 2022

(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	(814)		—		134		(680)
Amounts reclassified out	—		227		(22)		205
Total other comprehensive income (loss), before tax	(814)		227		112		(475)
Tax effect	(57)		(55)		(25)		(137)
Total other comprehensive income (loss), net of tax	(871)		172		87		(612)
Balance at June 30, 2022, net of tax:	$	(2,814)	$	(4,581)	$	33	$	(7,362)

Three months ended June 30, 2021

(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, 2021, net of tax:	$	(1,673)	$	(5,979)	$	(115)	$	(7,767)
Other comprehensive income (loss), before tax:
Amounts before reclassifications	159		—		(26)		133
Amounts reclassified out	—		160		12		172
Total other comprehensive income (loss), before tax	159		160		(14)		305
Tax effect	12		(39)		3		(24)
Total other comprehensive income (loss), net of tax	171		121		(11)		281
Balance at June 30, 2021, net of tax:	$	(1,502)	$	(5,858)	$	(126)	$	(7,486)

Six months ended June 30, 2021

(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, 2020, net of tax:	$	(1,450)	$	(6,098)	$	(173)	$	(7,721)
Other comprehensive income (loss), before tax:
Amounts before reclassifications	(17)		—		40		23
Amounts reclassified out	—		319		21		340
Total other comprehensive income (loss), before tax	(17)		319		61		363
Tax effect	(35)		(79)		(14)		(128)
Total other comprehensive income (loss), net of tax	(52)		240		47		235
Balance at June 30, 2021, net of tax:	$	(1,502)	$	(5,858)	$	(126)	$	(7,486)

Reclassifications out of accumulated other comprehensive income

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
	Three months ended June 30,				Six months ended June 30,
(Millions)	2022		2021		2022	2021
Defined benefit pension and postretirement plans adjustments
Gains (losses) associated with defined benefit pension and postretirement plans amortization
Transition asset	$	(1)	$	(1)	(1)	$	(1)	Other (expense) income, net
Prior service benefit	15		15		28	30		Other (expense) income, net
Net actuarial loss	(125)		(173)		(252)	(346)		Other (expense) income, net
Curtailments/Settlements	(1)		(1)		(2)	(2)		Other (expense) income, net
Total before tax	(112)		(160)		(227)	(319)
Tax effect	27		39		55	79		Provision for income taxes
Net of tax	(85)		(121)		(172)	(240)
Cash flow hedging instruments gains (losses)
Foreign currency forward/option contracts	17		(10)		26	(17)		Cost of sales
Interest rate contracts	(2)		(2)		(4)	(4)		Interest expense
Total before tax	15		(12)		22	(21)
Tax effect	(3)		3		(5)	5		Provision for income taxes
Net of tax	12		(9)		17	(16)
Total reclassifications for the period, net of tax	$	(73)	$	(130)	(155)	$	(256)