Other Financial Information (Tables)

12 Months Ended

Dec. 31, 2024

Other Financial Information [Abstract]

Schedule of Interest Cost Components

Interest Cost Components

	2024		2023		2022
Amount charged to expense	$	156	$	107	$	106
Amount capitalized		8		4		3
	$	164	$	111	$	109

Schedule of Other Expenses (Income), Net

Other Expenses (Income), Net

	2024			2023			2022
Equity loss	$	24		$	228		$	27
Foreign currency losses (gains), net		126			(64	)		9
Net loss from asset sales		37			14			10
Net (gain) loss on mark-to-market derivative instruments (P)		(58	)		5			(174	)
Non-service costs – pension and other postretirement benefits (O)		16			13			60
Other, net		(54	)		(62	)		(50	)
	$	91		$	134		$	(118	)

Schedule of Other Noncurrent Assets

Other Noncurrent Assets

December 31,	2024		2023
Prepaid gas transmission contract	$	278	$	297
Gas supply prepayment (S)		225		283
Value added tax credits		213		336
Deferred mining costs, net		184		187
Goodwill (L)		142		146
Prepaid pension benefit (O)		128		125
IRA Section 45X credit (Q)		71		—
Noncurrent prepaid tax asset (S)		66		73
Noncurrent restricted cash (see below)		53		71
Intangibles, net (L)		36		37
Other		101		95
	$	1,497	$	1,650

Schedule of Other Noncurrent Liabilities and Deferred Credits

Other Noncurrent Liabilities and Deferred Credits

December 31,	2024		2023
Operating lease obligations (T)	$	223	$	104
Noncurrent accrued tax liability (S)		206		199
Accrued compensation and retirement costs		95		94
Deferred energy credits		36		42
Value added tax credits payable to Arconic Corporation		26		58
Deferred alumina sales revenue		12		20
Noncurrent restructuring reserve (D)		8		15
Other		50		36
	$	656	$	568

Schedule of Cash and Cash Equivalents and Restricted Cash

Cash and Cash Equivalents and Restricted Cash

December 31,	2024		2023
Cash and cash equivalents	$	1,138	$	944
Current restricted cash		43		32
Noncurrent restricted cash		53		71
	$	1,234	$	1,047

Schedule of Cash Paid for Interest and Income Taxes

Cash Flow Information

Cash paid for interest and income taxes was as follows:

	2024		2023		2022
Interest, net of amount capitalized	$	132	$	100	$	100
Income taxes, net of amount refunded		157		319		504