Accumulated Other Comprehensive Loss

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Accumulated Other Comprehensive Loss

C. Accumulated Other Comprehensive Loss

The following table details the activity of the four components that comprise Accumulated other comprehensive loss for both Arconic’s shareholders and noncontrolling interests:

	Arconic						Noncontrolling Interests
	Third quarter ended						Third quarter ended
	September 30,						September 30,
	2017			2016			2017			2016
Pension and other postretirement benefits (M)
Balance at beginning of period	$	(1,931	)	$	(3,514	)	$	—		$	(53	)
Other comprehensive income (loss):
Unrecognized net actuarial loss and prior service cost		(7	)		(819	)		—			(1	)
Tax benefit		1			286			—			—
Total Other comprehensive loss before reclassifications, net of tax		(6	)		(533	)		—			(1	)
Amortization of net actuarial loss and prior service cost(1)		56			109			—			1
Tax expense(2)		(19	)		(38	)		—			(1	)
Total amount reclassified from Accumulated other comprehensive income, net of tax(5)		37			71			—			—
Total Other comprehensive income (loss)		31			(462	)		—			(1	)
Balance at end of period	$	(1,900	)	$	(3,976	)	$	—		$	(54	)
Foreign currency translation
Balance at beginning of period	$	(523	)	$	(2,064	)	$	(2	)	$	(641	)
Other comprehensive income(3)		85			157			—			45
Balance at end of period	$	(438	)	$	(1,907	)	$	(2	)	$	(596	)
Available-for-sale securities
Balance at beginning of period	$	(2	)	$	(1	)	$	—		$	—
Other comprehensive income(4)		1			—			—			—
Balance at end of period	$	(1	)	$	(1	)	$	—		$	—
Cash flow hedges
Balance at beginning of period	$	2		$	364		$	—		$	11
Other comprehensive income (loss):
Net change from periodic revaluations		15			(430	)		—			20
Tax (expense) benefit		(5	)		126			—			(6	)
Total Other comprehensive income (loss) before reclassifications, net of tax		10			(304	)		—			14
Net amount reclassified to earnings		—			(46	)		—			(34	)
Tax benefit (2)		—			12			—			10
Total amount reclassified from Accumulated other comprehensive loss, net of tax (5)		—			(34	)		—			(24	)
Total Other comprehensive income (loss)		10			(338	)		—			(10	)
Balance at end of period	$	12		$	26		$	—		$	1

⁽¹⁾  These amounts were included in the computation of net periodic benefit cost for pension and other postretirement benefits (see Note M).

⁽²⁾  These amounts were included in Provision for income taxes on the accompanying Statement of Consolidated Operations.

⁽³⁾  In all periods presented, there were no tax impacts related to rate changes and no amounts were reclassified to earnings.

⁽⁴⁾  Realized gains and losses were included in Other income, net on the accompanying Statement of Consolidated Operations.

⁽⁵⁾  A positive amount indicates a corresponding charge to earnings and a negative amount indicates a corresponding benefit to earnings. These amounts were reflected on the accompanying Statement of Consolidated Operations in the line items indicated in footnotes 2 through 4.

	Arconic						Noncontrolling Interests
	Nine months ended						Nine months ended
	September 30,						September 30,
	2017			2016			2017			2016
Pension and other postretirement benefits (M)
Balance at beginning of period	$	(2,010	)	$	(3,611	)	$	—		$	(56	)
Other comprehensive income (loss):
Unrecognized net actuarial loss and prior service cost		4			(883	)		—			—
Tax (expense) benefit		(3	)		312			—			—
Total Other comprehensive income (loss) before reclassifications, net of tax		1			(571	)		—			—
Amortization of net actuarial loss and prior service cost(1)		167			317			—			3
Tax expense(2)		(58	)		(111	)		—			(1	)
Total amount reclassified from Accumulated other comprehensive loss, net of tax(5)		109			206			—			2
Total Other comprehensive income (loss)		110			(365	)		—			2
Balance at end of period	$	(1,900	)	$	(3,976	)	$	—		$	(54	)
Foreign currency translation
Balance at beginning of period	$	(689	)	$	(2,412	)	$	(2	)	$	(780	)
Other comprehensive income(3)		251			505			—			184
Balance at end of period	$	(438	)	$	(1,907	)	$	(2	)	$	(596	)
Available-for-sale securities
Balance at beginning of period	$	132		$	(5	)	$	—		$	—
Other comprehensive (loss) income(4)		(133	)		4			—			—
Balance at end of period	$	(1	)	$	(1	)	$	—		$	—
Cash flow hedges
Balance at beginning of period	$	(1	)	$	597		$	—		$	(3	)
Other comprehensive income (loss):
Net change from periodic revaluations		20			(772	)		—			35
Tax (expense) benefit		(7	)		229			—			(10	)
Total Other comprehensive income (loss) before reclassifications, net of tax		13			(543	)		—			25
Net amount reclassified to earnings		—			(41	)		—			(29	)
Tax benefit2)		—			13			—			8
Total amount reclassified from Accumulated other comprehensive loss, net of tax(5)		—			(28	)		—			(21	)
Total Other comprehensive income (loss)		13			(571	)		—			4
Balance at end of period	$	12		$	26		$	—		$	1

⁽¹⁾  These amounts were included in the computation of net periodic benefit cost for pension and other postretirement benefits (see Note M).

⁽²⁾  These amounts were included in Provision for income taxes on the accompanying Statement of Consolidated Operations.

⁽³⁾  In all periods presented, there were no tax impacts related to rate changes and no amounts were reclassified to earnings.

⁽⁴⁾  Realized gains and losses were included in Other income, net on the accompanying Statement of Consolidated Operations.

⁽⁵⁾  A positive amount indicates a corresponding charge to earnings and a negative amount indicates a corresponding benefit to earnings. These amounts were reflected on the accompanying Statement of Consolidated Operations in the line items indicated in footnotes 2 through 4.