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


			Defined Benefit		Debt and		Cash Flow		Accumulated
			Pension and		Equity		Hedging		Other
	Cumulative		Postretirement		Securities,		Instruments,		Comprehensive
	Translation		Plans		Unrealized		Unrealized		Income
(Millions)	Adjustment		Adjustment		Gain (Loss)		Gain (Loss)		(Loss)
Balance at December 31, 2013, net of tax:	$	(188)	$	(3,715)	$	(2)	$	(8)	$	(3,913)
Other comprehensive income (loss), before tax:
Amounts before reclassifications		(856)		(2,638)		2		171		(3,321)
Amounts reclassified out		—		360		1		(4)		357
Total other comprehensive income (loss), before tax		(856)		(2,278)		3		167		(2,964)
Tax effect		(92)		716		(1)		(60)		563
Total other comprehensive income (loss), net of tax		(948)		(1,562)		2		107		(2,401)
Impact from purchase of subsidiary shares		41		(16)		—		—		25
Balance at December 31, 2014, net of tax:	$	(1,095)	$	(5,293)	$	—	$	99	$	(6,289)
Other comprehensive income (loss), before tax:
Amounts before reclassifications		(447)		367		—		212		132
Amounts reclassified out		—		537		—		(174)		363
Total other comprehensive income (loss), before tax		(447)		904		—		38		495
Tax effect		(137)		(415)		—		(13)		(565)
Total other comprehensive income (loss), net of tax		(584)		489		—		25		(70)
Balance at December 31, 2015, net of tax	$	(1,679)	$	(4,804)	$	—	$	124	$	(6,359)
Other comprehensive income (loss), before tax:
Amounts before reclassifications		(244)		(1,122)		—		57		(1,309)
Amounts reclassified out		—		421		—		(109)		312
Total other comprehensive income (loss), before tax		(244)		(701)		—		(52)		(997)
Tax effect		(85)		177		—		19		111
Total other comprehensive income (loss), net of tax		(329)		(524)		—		(33)		(886)
Balance at December 31, 2016, net of tax:	$	(2,008)	$	(5,328)	$	—	$	91	$	(7,245)

Reclassifications out of Accumulated Other Comprehensive Income Attributable to 3M


	Amounts Reclassified from
	Accumulated Other Comprehensive Income
Details about Accumulated Other	Year ended		Year ended		Year ended
Comprehensive Income Components	December 31,		December 31,		December 31,		Location on Income
(Millions)	2016		2015		2014		Statement
Gains (losses) associated with, defined benefit pension and postretirement plans amortization
Transition asset	$	1	$	1	$	1	See Note 11
Prior service benefit		92		79		59	See Note 11
Net actuarial loss		(506)		(626)		(420)	See Note 11
Curtailments/Settlements		(8)		9		—	See Note 11
Total before tax		(421)		(537)		(360)
Tax effect		148		176		122	Provision for income taxes
Net of tax	$	(273)	$	(361)	$	(238)

Debt and equity security gains (losses)
Sales or impairments of securities	$	—	$	—	$	(1)	Selling, general and administrative expenses
Total before tax		—		—		(1)
Tax effect		—		—		—	Provision for income taxes
Net of tax	$	—	$	—	$	(1)

Cash flow hedging instruments gains (losses)
Foreign currency forward/option contracts	$	110	$	178	$	3	Cost of sales
Commodity price swap contracts		—		(2)		2	Cost of sales
Interest rate swap contracts		(1)		(2)		(1)	Interest expense
Total before tax		109		174		4
Tax effect		(39)		(63)		(1)	Provision for income taxes
Net of tax	$	70	$	111	$	3
Total reclassifications for the period, net of tax	$	(203)	$	(250)	$	(236)