Other Financial Information (Tables)

12 Months Ended

Dec. 31, 2019

Other Financial Information [Abstract]

Schedule of Interest Cost Components

Interest Cost Components

	2019		2018		2017
Amount charged to expense	$	121	$	122	$	104
Amount capitalized		13		14		17
	$	134	$	136	$	121

Schedule of Other Expenses, Net

Other Expenses, Net

	2019			2018			2017
Equity loss	$	49		$	17		$	28
Foreign currency losses (gains), net		16			(57	)		8
Net gain from asset sales		(3	)		—			(116	)
Net (gain) loss on mark-to-market derivative instruments (O)		(1	)		(25	)		24
Non-service costs – pension and OPEB (N)		117			139			85
Other, net		(16	)		(10	)		(2	)
	$	162		$	64		$	27

Schedule of Other Noncurrent Assets

Other Noncurrent Assets

December 31,	2019		2018
Gas supply prepayment (R)	$	437	$	458
Prepaid gas transmission contract		281		275
Value-added tax credits		179		210
Goodwill (K)		150		151
Deferred mining costs, net		124		123
Intangibles, net (K)		52		57
Prepaid pension benefit (N)		33		63
Other		156		138
	$	1,412	$	1,475

Schedule of Other Noncurrent Liabilities and Deferred Credits

Other Noncurrent Liabilities and Deferred Credits

December 31,	2019		2018
Accrued compensation and retirement costs	$	110	$	107
Operating lease obligations (S)		100		—
Deferred alumina sales revenue		52		61
Deferred energy credits		50		—
Other		58		54
	$	370	$	222

Schedule of Cash and Cash Equivalents and Restricted Cash

Cash and Cash Equivalents and Restricted Cash

December 31,	2019		2018
Cash and cash equivalents	$	879	$	1,113
Restricted cash		4		3
	$	883	$	1,116

Restricted cash amounts are reported in Prepaid expenses and other current assets on the accompanying Consolidated Balance Sheet.

Schedule of Cash Paid for Interest and Income Taxes

Cash Flow Information

Cash paid for interest and income taxes was as follows:

	2019		2018		2017
Interest, net of amount capitalized	$	113	$	111	$	100
Income taxes, net of amount refunded		732		507		363