Consolidated Balance Sheet (unaudited) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents (M)	$ 965	$ 879
Receivables from customers (I)	402	546
Other receivables	105	114
Inventories (J)	1,419	1,644
Fair value of derivative instruments (M)	24	59
Prepaid expenses and other current assets	264	288
Total current assets	3,179	3,530
Properties, plants, and equipment	20,877	21,715
Less: accumulated depreciation, depletion, and amortization	13,588	13,799
Properties, plants, and equipment, net	7,289	7,916
Investments (H)	1,037	1,113
Deferred income taxes	482	642
Fair value of derivative instruments (M)	5	18
Other noncurrent assets	1,308	1,412
Total assets	13,300	14,631
Current liabilities:
Accounts payable, trade	1,253	1,484
Accrued compensation and retirement costs	393	413
Taxes, including income taxes	96	104
Fair value of derivative instruments (M)	47	67
Other current liabilities	451	494
Long-term debt due within one year (K & M)	1	1
Total current liabilities	2,241	2,563
Long-term debt, less amount due within one year (K & M)	1,800	1,799
Accrued pension benefits (L)	1,602	1,505
Accrued other postretirement benefits (L)	711	749
Asset retirement obligations	565	606
Environmental remediation (P)	277	296
Fair value of derivative instruments (M)	203	581
Noncurrent income taxes	245	276
Other noncurrent liabilities and deferred credits	332	370
Total liabilities	7,976	8,745
CONTINGENCIES AND COMMITMENTS (P)
Alcoa Corporation shareholders’ equity:
Common stock	2	2
Additional capital	9,655	9,639
Accumulated deficit	(672)	(555)
Accumulated other comprehensive loss (G)	(5,280)	(4,974)
Total Alcoa Corporation shareholders’ equity	3,705	4,112
Noncontrolling interest	1,619	1,774
Total equity	5,324	5,886
Total liabilities and equity	$ 13,300	$ 14,631