Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Dec. 31, 2022

Equity [Abstract]

Summary of Changes in Accumulated Other Comprehensive Loss by Component

The following table details the activity of the three components that comprise Accumulated other comprehensive loss:

	2022		2021		2020
Pension and other postretirement benefits (H)
Balance at beginning of period	$	(799)	$	(980)	$	(2,732)
Other comprehensive income (loss):
Unrecognized net actuarial gain (loss) and prior service cost/benefit	87		111		(211)
Tax (expense) benefit	(18)		(26)		48
Total Other comprehensive income (loss) before reclassifications, net of tax	69		85		(163)
Amortization of net actuarial loss and prior service cost(1)	99		123		149
Tax expense(2)	(22)		(27)		(32)
Total amount reclassified from Accumulated other comprehensive loss, net of tax(3)	77		96		117
Total Other comprehensive income (loss)	146		181		(46)
Transfer to Arconic Corporation	—		—		1,798
Balance at end of period	$	(653)	$	(799)	$	(980)
Foreign currency translation
Balance at beginning of period	$	(1,062)	$	(966)	$	(596)
Other comprehensive (loss) income(4)	(131)		(96)		58
Transfer to Arconic Corporation	—		—		(428)
Balance at end of period	$	(1,193)	$	(1,062)	$	(966)
Cash flow hedges
Balance at beginning of period	$	(2)	$	3	$	(1)
Other comprehensive (loss) income:
Net change from periodic revaluations	(8)		20		—
Tax benefit (expense)	2		(4)		—
Total Other comprehensive (loss) income before reclassifications, net of tax	(6)		16		—
Net amount reclassified to earnings	17		(26)		6
Tax (expense) benefit(2)	(4)		5		(2)
Total amount reclassified from Accumulated other comprehensive income (loss), net of tax(3)	13		(21)		4
Total Other comprehensive income (loss)	7		(5)		4
Balance at end of period	$	5	$	(2)	$	3
Accumulated other comprehensive loss balance at end of period	$	(1,841)	$	(1,863)	$	(1,943)

(1)These amounts were recorded in Other expense, net (see Note G) and Restructuring and other charges (see Note E) in the Statement of Consolidated Operations.

(2)These amounts were included in Provision (benefit) for income taxes (see Note I) in the Statement of Consolidated Operations.

(3)A positive amount indicates a corresponding charge to earnings and a negative amount indicates a corresponding benefit to earnings.

(4)In all periods presented, no amounts were reclassified to earnings.