10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period Ended June 30, 2016

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File Number 1-3610

ALCOA INC.

(Exact name of registrant as specified in its charter)

PENNSYLVANIA	25-0317820
(State of incorporation)	(I.R.S. Employer Identification No.)
390 Park Avenue, New York, New York	10022-4608
(Address of principal executive offices)	(Zip code)

Investor Relations             212-836-2674

Office of the Secretary      212-836-2732

(Registrant’s telephone number including area code)

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months, and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months.    Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	x	Accelerated filer	¨
Non-accelerated filer	¨  (Do not check if a smaller reporting company)	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  x

As of July 22, 2016, 1,315,374,511 shares of common stock, par value $1.00 per share, of the registrant were outstanding.

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements.

Alcoa and subsidiaries

Statement of Consolidated Operations (unaudited)

(in millions, except per-share amounts)

	Second quarter ended June 30,					Six months ended June 30,
	2016			2015		2016			2015
Sales (K)	$	5,295		$	5,897	$	10,242		$	11,716
Cost of goods sold (exclusive of expenses below)		4,216			4,663		8,257			9,106
Selling, general administrative, and other expenses (P)		286			224		546			456
Research and development expenses		39			68		81			123
Provision for depreciation, depletion, and amortization		309			319		618			640
Restructuring and other charges (D)		23			217		116			394
Interest expense		129			124		256			246
Other income, net (J)		(37	)		—		(3	)		(12	)
Total costs and expenses		4,965			5,615		9,871			10,953
Income before income taxes		330			282		371			763
Provision for income taxes		152			75		182			301
Net income		178			207		189			462
Less: Net income attributable to noncontrolling interests		43			67		38			127
NET INCOME ATTRIBUTABLE TO ALCOA	$	135		$	140	$	151		$	335
AMOUNTS ATTRIBUTABLE TO ALCOA COMMON SHAREHOLDERS (L):
Net income	$	118		$	123	$	116		$	300
Earnings per share:
Basic	$	0.09		$	0.10	$	0.09		$	0.25
Diluted	$	0.09		$	0.10	$	0.09		$	0.24
Dividends paid per share	$	0.03		$	0.03	$	0.06		$	0.06

The accompanying notes are an integral part of the consolidated financial statements.

2

Alcoa and subsidiaries

Statement of Consolidated Comprehensive Income (Loss) (unaudited)

(in millions)

	Alcoa						Noncontrolling interests					Total
	Second quarter ended June 30,						Second quarter ended June 30,					Second quarter ended June 30,
	2016			2015			2016		2015			2016			2015
Net income	$	135		$	140		$	43	$	67		$	178		$	207
Other comprehensive (loss) income, net of tax (C):
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits		65			(4	)		2		3			67			(1	)
Foreign currency translation adjustments		45			197			32		32			77			229
Net change in unrealized losses/gains on available-for-sale securities		3			(2	)		—		—			3			(2	)
Net change in unrecognized gains/losses on cash flow hedges		(153	)		434			16		(4	)		(137	)		430
Total Other comprehensive (loss) income, net of tax		(40	)		625			50		31			10			656
Comprehensive income	$	95		$	765		$	93	$	98		$	188		$	863
	Six months ended June 30,						Six months ended June 30,					Six months ended June 30,
	2016			2015			2016		2015			2016			2015
Net income	$	151		$	335		$	38	$	127		$	189		$	462
Other comprehensive income (loss), net of tax (C):
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits		97			101			3		5			100			106
Foreign currency translation adjustments		348			(760	)		139		(218	)		487			(978	)
Net change in unrealized losses/gains on available-for-sale securities		4			—			—		—			4			—
Net change in unrecognized gains/losses on cash flow hedges		(233	)		370			14		(4	)		(219	)		366
Total Other comprehensive income (loss), net of tax		216			(289	)		156		(217	)		372			(506	)
Comprehensive income (loss)	$	367		$	46		$	194	$	(90	)	$	561		$	(44	)

The accompanying notes are an integral part of the consolidated financial statements.

3

Alcoa and subsidiaries

Consolidated Balance Sheet (unaudited)

(in millions)

	June 30, 2016			December 31, 2015
ASSETS
Current assets:
Cash and cash equivalents	$	1,929		$	1,919
Receivables from customers, less allowances of $14 in 2016 and $13 in 2015 (M)		1,595			1,340
Other receivables (M)		494			522
Inventories (F)		3,438			3,442
Prepaid expenses and other current assets		637			730
Total current assets		8,093			7,953
Properties, plants, and equipment		34,441			33,687
Less: accumulated depreciation, depletion, and amortization		19,424			18,872
Properties, plants, and equipment, net		15,017			14,815
Goodwill (E)		5,396			5,401
Investments (G)		1,466			1,685
Deferred income taxes		2,752			2,668
Other noncurrent assets (H)		3,415			3,955
Total assets	$	36,139		$	36,477
LIABILITIES
Current liabilities:
Short-term borrowings	$	33		$	38
Accounts payable, trade		2,665			2,889
Accrued compensation and retirement costs		810			850
Taxes, including income taxes		206			239
Other current liabilities		1,000			1,174
Long-term debt due within one year		774			21
Total current liabilities		5,488			5,211
Long-term debt, less amount due within one year		8,278			8,993
Accrued pension benefits		3,122			3,298
Accrued other postretirement benefits		2,070			2,106
Other noncurrent liabilities and deferred credits		2,652			2,738
Total liabilities		21,610			22,346
CONTINGENCIES AND COMMITMENTS (I)
EQUITY
Alcoa shareholders’ equity:
Preferred stock		55			55
Mandatory convertible preferred stock		3			3
Common stock		1,391			1,391
Additional capital		9,877			10,019
Retained earnings		8,871			8,834
Treasury stock, at cost		(2,647	)		(2,825	)
Accumulated other comprehensive loss (C)		(5,215	)		(5,431	)
Total Alcoa shareholders’ equity		12,335			12,046
Noncontrolling interests		2,194			2,085
Total equity		14,529			14,131
Total liabilities and equity	$	36,139		$	36,477

The accompanying notes are an integral part of the consolidated financial statements.

4

Alcoa and subsidiaries

Statement of Consolidated Cash Flows (unaudited)

(in millions)

	Six months ended June 30,
	2016			2015
CASH FROM OPERATIONS
Net income	$	189		$	462
Adjustments to reconcile net income to cash from operations:
Depreciation, depletion, and amortization		622			641
Deferred income taxes		(78	)		(45	)
Equity income, net of dividends		20			50
Restructuring and other charges (D)		116			394
Net gain from investing activities – asset sales (G & J)		(28	)		(28	)
Net periodic pension benefit cost (N)		168			243
Stock-based compensation		55			55
Excess tax benefits from stock-based payment arrangements		—			(9	)
Other		19			(64	)
Changes in assets and liabilities, excluding effects of acquisitions, divestitures, and foreign currency translation adjustments:
(Increase) in receivables		(218	)		(200	)
(Increase) in inventories		(3	)		(221	)
Decrease in prepaid expenses and other current assets		4			7
(Decrease) in accounts payable, trade		(243	)		(130	)
(Decrease) in accrued expenses		(301	)		(374	)
Increase in taxes, including income taxes		57			130
Pension contributions		(147	)		(169	)
(Increase) in noncurrent assets (I)		(215	)		(352	)
(Decrease) in noncurrent liabilities		(115	)		(93	)
CASH (USED FOR) PROVIDED FROM OPERATIONS		(98	)		297
FINANCING ACTIVITIES
Net change in short-term borrowings (original maturities of three months or less)		(5	)		(4	)
Additions to debt (original maturities greater than three months)		876			1,027
Payments on debt (original maturities greater than three months)		(882	)		(1,037	)
Proceeds from exercise of employee stock options		2			26
Excess tax benefits from stock-based payment arrangements		—			9
Dividends paid to shareholders		(114	)		(109	)
Distributions to noncontrolling interests		(84	)		(71	)
CASH USED FOR FINANCING ACTIVITIES		(207	)		(159	)
INVESTING ACTIVITIES
Capital expenditures		(528	)		(514	)
Acquisitions, net of cash acquired (E)		—			(204	)
Proceeds from the sale of assets and businesses (E & H)		549			59
Additions to investments		(8	)		(50	)
Sales of investments (G)		275			22
Net change in restricted cash		7			(9	)
Other		15			11
CASH PROVIDED FROM (USED FOR) INVESTING ACTIVITIES		310			(685	)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS		5			(19	)
Net change in cash and cash equivalents		10			(566	)
Cash and cash equivalents at beginning of year		1,919			1,877
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$	1,929		$	1,311

The accompanying notes are an integral part of the consolidated financial statements.

5

Alcoa and subsidiaries

Statement of Changes in Consolidated Equity (unaudited)

(in millions, except per-share amounts)

	Alcoa Shareholders
	Preferred stock		Mandatory convertible preferred stock		Common stock		Additional capital			Retained earnings			Treasury stock			Accumulated other comprehensive loss			Non- controlling interests			Total equity
Balance at March 31, 2015	$	55	$	3	$	1,304	$	9,124		$	9,520		$	(2,841	)	$	(5,591	)	$	2,269		$	13,843
Net income		—		—		—		—			140			—			—			67			207
Other comprehensive income (C)		—		—		—		—			—			—			625			31			656
Cash dividends declared:
Preferred-Class A @ $0.9375 per share		—		—		—		—			—			—			—			—			—
Preferred-Class B @ $6.71875 per share		—		—		—		—			(17	)		—			—			—			(17	)
Common @ $0.03 per share		—		—		—		—			(38	)		—			—			—			(38	)
Stock-based compensation		—		—		—		29			—			—			—			—			29
Common stock issued: compensation plans		—		—		—		(6	)		—			7			—			—			1
Distributions		—		—		—		—			—			—			—			(42	)		(42	)
Other		—		—		—		—			—			—			—			(1	)		(1	)
Balance at June 30, 2015	$	55	$	3	$	1,304	$	9,147		$	9,605		$	(2,834	)	$	(4,966	)	$	2,324		$	14,638
Balance at March 31, 2016	$	55	$	3	$	1,391	$	9,856		$	8,753		$	(2,657	)	$	(5,175	)	$	2,135		$	14,361
Net income		—		—		—		—			135			—			—			43			178
Other comprehensive (loss) income (C)		—		—		—		—			—			—			(40	)		50			10
Cash dividends declared:
Preferred-Class B @ $6.71875 per share		—		—		—		—			(17	)		—			—			—			(17	)
Stock-based compensation		—		—		—		29			—			—			—			—			29
Common stock issued: compensation plans		—		—		—		(8	)		—			10			—			—			2
Distributions		—		—		—		—			—			—			—			(34	)		(34	)
Balance at June 30, 2016	$	55	$	3	$	1,391	$	9,877		$	8,871		$	(2,647	)	$	(5,215	)	$	2,194		$	14,529

The accompanying notes are an integral part of the consolidated financial statements.

6

Alcoa and subsidiaries

Statement of Changes in Consolidated Equity (unaudited), continued

(in millions, except per-share amounts)

	Alcoa Shareholders
	Preferred stock		Mandatory convertible preferred stock		Common stock		Additional capital			Retained earnings			Treasury stock			Accumulated other comprehensive loss			Non- controlling interests			Total equity
Balance at December 31, 2014	$	55	$	3	$	1,304	$	9,284		$	9,379		$	(3,042	)	$	(4,677	)	$	2,488		$	14,794
Net income		—		—		—		—			335			—			—			127			462
Other comprehensive loss (C)		—		—		—		—			—			—			(289	)		(217	)		(506	)
Cash dividends declared:
Preferred-Class A @ $1.875 per share		—		—		—		—			(1	)		—			—			—			(1	)
Preferred-Class B @ $13.4375 per share		—		—		—		—			(34	)		—			—			—			(34	)
Common @ $0.06 per share		—		—		—		—			(74	)		—			—			—			(74	)
Stock-based compensation		—		—		—		55			—			—			—			—			55
Common stock issued: compensation plans		—		—		—		(192	)		—			208			—			—			16
Distributions		—		—		—		—			—			—			—			(71	)		(71	)
Other		—		—		—		—			—			—			—			(3	)		(3	)
Balance at June 30, 2015	$	55	$	3	$	1,304	$	9,147		$	9,605		$	(2,834	)	$	(4,966	)	$	2,324		$	14,638
Balance at December 31, 2015	$	55	$	3	$	1,391	$	10,019		$	8,834		$	(2,825	)	$	(5,431	)	$	2,085		$	14,131
Net income		—		—		—		—			151			—			—			38			189
Other comprehensive income (C)		—		—		—		—			—			—			216			156			372
Cash dividends declared:
Preferred-Class A @ $1.875 per share		—		—		—		—			(1	)		—			—			—			(1	)
Preferred-Class B @ $13.4375 per share		—		—		—		—			(34	)		—			—			—			(34	)
Common @ $0.06 per share		—		—		—		—			(79	)		—			—			—			(79	)
Stock-based compensation		—		—		—		55			—			—			—			—			55
Common stock issued: compensation plans		—		—		—		(197	)		—			178			—			—			(19	)
Distributions		—		—		—		—			—			—			—			(84	)		(84	)
Other		—		—		—		—			—			—			—			(1	)		(1	)
Balance at June 30, 2016	$	55	$	3	$	1,391	$	9,877		$	8,871		$	(2,647	)	$	(5,215	)	$	2,194		$	14,529

The accompanying notes are an integral part of the consolidated financial statements.

7

Alcoa and subsidiaries

Notes to the Consolidated Financial Statements (unaudited)

(dollars in millions, except per-share amounts)

A. Basis of Presentation – The interim Consolidated Financial Statements of Alcoa Inc. and its subsidiaries (“Alcoa” or the “Company”) are unaudited. These Consolidated Financial Statements include all adjustments, consisting only of normal recurring adjustments, considered necessary by management to fairly state the Company’s results of operations, financial position, and cash flows. The results reported in these Consolidated Financial Statements are not necessarily indicative of the results that may be expected for the entire year. The 2015 year-end balance sheet data was derived from audited financial statements but does not include all disclosures required by accounting principles generally accepted in the United States of America (GAAP). This Form 10-Q report should be read in conjunction with Alcoa’s Annual Report on Form 10-K for the year ended December 31, 2015, which includes all disclosures required by GAAP. Certain amounts in previously issued financial statements were reclassified to conform to the current period presentation (see Note B).

B. Recently Adopted and Recently Issued Accounting Guidance

Adopted

On January 1, 2016, Alcoa adopted changes issued by the Financial Accounting Standards Board (FASB) to the presentation of extraordinary items. Such items are defined as transactions or events that are both unusual in nature and infrequent in occurrence, and, previously, were required to be presented separately in an entity’s income statement, net of income tax, after income from continuing operations. The changes eliminate the concept of an extraordinary item and, therefore, the presentation of such items is no longer required. Notwithstanding this change, an entity is still required to present and disclose a transaction or event that is both unusual in nature and infrequent in occurrence in the notes to the financial statements. The adoption of these changes had no impact on the Consolidated Financial Statements.

On January 1, 2016, Alcoa adopted changes issued by the FASB to the analysis an entity must perform to determine whether it should consolidate certain types of legal entities. These changes (i) modify the evaluation of whether limited partnerships and similar legal entities are variable interest entities or voting interest entities, (ii) eliminate the presumption that a general partner should consolidate a limited partnership, (iii) affect the consolidation analysis of reporting entities that are involved with variable interest entities, particularly those that have fee arrangements and related party relationships, and (iv) provide a scope exception from consolidation guidance for reporting entities with interests in legal entities that are required to comply with or operate in accordance with requirements that are similar to those in Rule 2a-7 of the Investment Company Act of 1940 for registered money market funds. The adoption of these changes had no impact on the Consolidated Financial Statements.

On January 1, 2016, Alcoa adopted changes issued by the FASB to the presentation of debt issuance costs. Previously, such costs were required to be presented as a noncurrent asset in an entity’s balance sheet and amortized into interest expense over the term of the related debt instrument. The changes require that debt issuance costs be presented in an entity’s balance sheet as a direct deduction from the carrying value of the related debt liability. The amortization of debt issuance costs remains unchanged. The FASB issued an update to these changes based on an announcement of the staff of the U.S. Securities and Exchange Commission. This update provides an exception to the FASB changes allowing debt issuance costs related to line-of-credit arrangements to continue to be presented as an asset regardless of whether there are any outstanding borrowings under such arrangement. This additional change also was adopted by Alcoa on January 1, 2016. This adoption is required on a retrospective basis; therefore, the December 31, 2015 Consolidated Balance Sheet has been updated to conform to the June 30, 2016 presentation. As a result, $51 of debt issuance costs (previously reported in Other noncurrent assets) were reclassified to the Long-term debt, less amount due within one year line item on the December 31, 2015 Consolidated Balance Sheet.

Issued

In January 2016, the FASB issued changes to equity investments. These changes require equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. However, an entity may choose to measure equity investments that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. Additionally, the impairment assessment of equity investments without readily determinable fair values has been simplified by requiring a qualitative assessment to identify impairment. These changes become effective for Alcoa on January 1, 2018. Management is currently evaluating the potential impact of these changes on the Consolidated Financial Statements.

8

In February 2016, the FASB issued changes to the accounting and presentation of leases. These changes require lessees to recognize a right of use asset and lease liability on the balance sheet for all leases with terms longer than 12 months. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize a right of use asset and lease liability. Additionally, when measuring assets and liabilities arising from a lease, optional payments should be included only if the lessee is reasonably certain to exercise an option to extend the lease, exercise a purchase option, or not exercise an option to terminate the lease. These changes become effective for Alcoa on January 1, 2019. Management is currently evaluating the potential impact of these changes on the Consolidated Financial Statements.

In March 2016, the FASB issued changes to employee share-based payment accounting. Currently, an entity must determine for each share-based payment award whether the difference between the deduction for tax purposes and the compensation cost recognized for financial reporting purposes results in either an excess tax benefit or a tax deficiency. Excess tax benefits are recognized in additional paid-in capital; tax deficiencies are recognized either as an offset to accumulated excess tax benefits, if any, or in the income statement. Excess tax benefits are not recognized until the deduction reduces taxes payable. The changes require all excess tax benefits and tax deficiencies related to share-based payment awards to be recognized as income tax expense or benefit in the income statement. The tax effects of exercised or vested awards should be treated as discrete items in the reporting period in which they occur. An entity also should recognize excess tax benefits regardless of whether the benefit reduces taxes payable in the current period. Additionally, the presentation of excess tax benefits related to share-based payment awards in the statement of cash flows is changed. Currently, excess tax benefits must be separated from other income tax cash flows and classified as a financing activity. The changes require excess tax benefits to be classified along with other income tax cash flows as an operating activity. Also, the changes require cash paid by an employer when directly withholding shares for tax-withholding purposes to be classified as a financing activity. Currently, there is no specific guidance on the classification in the statement of cash flows of cash paid by an employer to the tax authorities when directly withholding shares for tax-withholding purposes. Additionally, for a share-based award to qualify for equity classification it cannot partially settle in cash in excess of the employer’s minimum statutory withholding requirements. The changes permit equity classification of share-based awards for withholdings up to the maximum statutory tax rates in applicable jurisdictions. These changes become effective for Alcoa on January 1, 2017. Management is currently evaluating the potential impact of these changes on the Consolidated Financial Statements.

In March 2016, the FASB issued changes eliminating the requirement for an investor to adjust an equity method investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held as a result of an increase in the level of ownership interest or degree of influence. Additionally, an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting must recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. These changes become effective for Alcoa on January 1, 2017. Management is currently evaluating the potential impact of these changes on the Consolidated Financial Statements.

In March 2016, the FASB issued changes to derivative instruments designated as hedging instruments. These changes clarify that a change in the counterparty to a derivative instrument that has been designated as a hedging instrument does not, in and of itself, require dedesignation of that hedging relationship provided that all other hedge accounting criteria continue to be met. These changes become effective for Alcoa on January 1, 2017. Management does not expect these changes to have a material impact on the Consolidated Financial Statements.

9

C. Accumulated Other Comprehensive Loss

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

	Alcoa						Noncontrolling Interests
	Second quarter ended June 30,						Second quarter ended June 30,
	2016			2015			2016			2015
Pension and other postretirement benefits (N)
Balance at beginning of period	$	(3,579	)	$	(3,496	)	$	(55	)	$	(62	)
Other comprehensive income (loss):
Unrecognized net actuarial loss and prior service cost/benefit		(5	)		(118	)		1			3
Tax benefit		3			39			—			—
Total Other comprehensive (loss) income before reclassifications, net of tax		(2	)		(79	)		1			3
Amortization of net actuarial loss and prior service cost/benefit(1)		104			115			—			1
Tax (expense) benefit(2)		(37	)		(40	)		1			(1	)
Total amount reclassified from Accumulated other comprehensive loss, net of tax(8)		67			75			1			—
Total Other comprehensive income (loss)		65			(4	)		2			3
Balance at end of period	$	(3,514	)	$	(3,500	)	$	(53	)	$	(59	)
Foreign currency translation
Balance at beginning of period	$	(2,109	)	$	(1,803	)	$	(673	)	$	(601	)
Other comprehensive income(3)		45			197			32			32
Balance at end of period	$	(2,064	)	$	(1,606	)	$	(641	)	$	(569	)
Available-for-sale securities
Balance at beginning of period	$	(4	)	$	2		$	—		$	—
Other comprehensive income (loss)(4)		3			(2	)		—			—
Balance at end of period	$	(1	)	$	—		$	—		$	—
Cash flow hedges (O)
Balance at beginning of period	$	517		$	(294	)	$	(5	)	$	(2	)
Other comprehensive (loss) income:
Net change from periodic revaluations		(225	)		614			18			(5	)
Tax benefit (expense)		66			(190	)		(5	)		1
Total Other comprehensive (loss) income before reclassifications, net of tax		(159	)		424			13			(4	)
Net amount reclassified to earnings:
Aluminum contracts(5)		(1	)		10			—			—
Energy contracts(6)		—			2			—			—
Foreign exchange contracts(5)		—			1			—			—
Interest rate contracts(7)		8			1			5			—
Sub-total		7			14			5			—
Tax expense(2)		(1	)		(4	)		(2	)		—
Total amount reclassified from Accumulated other comprehensive income (loss), net of tax(8)		6			10			3			—
Total Other comprehensive (loss) income		(153	)		434			16			(4	)
Balance at end of period	$	364		$	140		$	11		$	(6	)

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	Alcoa						Noncontrolling Interests
	Six months ended June 30,						Six months ended June 30,
	2016			2015			2016			2015
Pension and other postretirement benefits (N)
Balance at beginning of period	$	(3,611	)	$	(3,601	)	$	(56	)	$	(64	)
Other comprehensive income:
Unrecognized net actuarial loss and prior service cost/benefit		(64	)		(76	)		1			3
Tax benefit		26			28			—			—
Total Other comprehensive (loss) income before reclassifications, net of tax		(38	)		(48	)		1			3
Amortization of net actuarial loss and prior service cost/benefit(1)		208			229			2			4
Tax expense(2)		(73	)		(80	)		—			(2	)
Total amount reclassified from Accumulated other comprehensive loss, net of tax(8)		135			149			2			2
Total Other comprehensive income		97			101			3			5
Balance at end of period	$	(3,514	)	$	(3,500	)	$	(53	)	$	(59	)
Foreign currency translation
Balance at beginning of period	$	(2,412	)	$	(846	)	$	(780	)	$	(351	)
Other comprehensive income (loss)(3)		348			(760	)		139			(218	)
Balance at end of period	$	(2,064	)	$	(1,606	)	$	(641	)	$	(569	)
Available-for-sale securities
Balance at beginning of period	$	(5	)	$	—		$	—		$	—
Other comprehensive income(4)		4			—			—			—
Balance at end of period	$	(1	)	$	—		$	—		$	—
Cash flow hedges (O)
Balance at beginning of period	$	597		$	(230	)	$	(3	)	$	(2	)
Other comprehensive (loss) income:
Net change from periodic revaluations		(342	)		504			15			(5	)
Tax benefit (expense)		103			(156	)		(4	)		1
Total Other comprehensive (loss) income before reclassifications, net of tax		(239	)		348			11			(4	)
Net amount reclassified to earnings:
Aluminum contracts(5)		(6	)		23			—			—
Energy contracts(6)		1			4			—			—
Foreign exchange contracts(5)		1			1			—			—
Interest rate contracts(7)		8			1			5			—
Nickel contracts(6)		1			—			—			—
Sub-total		5			29			5			—
Tax benefit (expense)(2)		1			(7	)		(2	)		—
Total amount reclassified from Accumulated other comprehensive loss, net of tax(8)		6			22			3			—
Total Other comprehensive (loss) income		(233	)		370			14			(4	)
Balance at end of period	$	364		$	140		$	11		$	(6	)

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

⁽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⁾  In all periods presented, unrealized and realized gains and losses related to these securities were immaterial. Realized gains and losses were included in Other income, net on the accompanying Statement of Consolidated Operations.

⁽⁵⁾  These amounts were included in Sales on the accompanying Statement of Consolidated Operations.

⁽⁶⁾  These amounts were included in Cost of goods sold on the accompanying Statement of Consolidated Operations.

⁽⁷⁾  For Alcoa, $7 of the amount in both the second quarter ended and six months ended as of June 30, 2016 was included in Other income, net on the accompanying Statement of Consolidated Operations. The remaining amount in both the second quarter ended and six months ended as of June 30, 2016 and the entire amount in both the second quarter ended and six months ended as of June 30, 2015 were included in Interest expense on the accompanying Statement of Consolidated Operations. For Noncontrolling interests, the amount in both the second quarter ended and six months ended as of June 30, 2016 was included in Other income, net on the accompanying Statement of Consolidated Operations.

⁽⁸⁾  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 1 through 7.

D. Restructuring and Other Charges – In the second quarter and six-month period of 2016, Alcoa recorded Restructuring and other charges of $23 ($16 after-tax and noncontrolling interest) and $116 ($77 after-tax and noncontrolling interest), respectively.

Restructuring and other charges in the 2016 second quarter included $15 ($11 after-tax and noncontrolling interest) for layoff costs related to cost reduction initiatives and the planned separation of Alcoa (see Note P), including the separation of approximately 540 employees (300 in the Engineered Products and Solutions segment and 240 in the Transportation and Construction Solutions segment); $8 ($6 after-tax and noncontrolling interest) for additional net costs related to decisions made in the fourth quarter of 2015 to permanently close and demolish the Warrick (Indiana) smelter and to curtail the Wenatchee (Washington) smelter and Point Comfort (Texas) refinery (see below); a net charge of $8 ($4 after-tax and noncontrolling interest) for other miscellaneous items; and $8 ($5 after-tax and noncontrolling interest) for the reversal of a number of small layoff reserves related to prior periods.

In the 2016 six-month period, Restructuring and other charges included $86 ($56 after-tax and noncontrolling interest) for additional net costs related to decisions made in the fourth quarter of 2015 to permanently close and demolish the Warrick (Indiana) smelter and to curtail the Wenatchee (Washington) smelter and Point Comfort (Texas) refinery (see below); $34 ($25 after-tax and noncontrolling interest) for layoff costs related to cost reduction initiatives and the planned separation of Alcoa (see Note P), including the separation of approximately 1,100 employees (800 in the Engineered Products and Solutions segment, 240 in the Transportation and Construction Solutions segment, and 30 each in the Primary Metals and Global Rolled Products segments); a net charge of $8 ($4 after-tax and noncontrolling interest) for other miscellaneous items; and $12 ($8 after-tax and noncontrolling interest) for the reversal of a number of small layoff reserves related to prior periods.

In the 2016 six-month period, costs related to the closure and curtailment actions included accelerated depreciation of $70 related to the Warrick smelter as it continued to operate during the 2016 first quarter; $20 ($1 in the 2016 second quarter) for the reversal of severance costs initially recorded in the 2015 fourth quarter; and $36 ($9 in the 2016 second quarter) in other costs. Additionally in the 2016 six-month period, remaining inventories, mostly operating supplies and raw materials, were written down to their net realizable value, resulting in a charge of $5 ($3 after-tax and noncontrolling interest) ($2 ($1 after-tax and noncontrolling interest) in the 2016 second quarter), which was recorded in Cost of goods sold on the accompanying Statement of Consolidated Operations. The other costs of $36 ($9 in the 2016 second quarter) represent $27 ($10 in the 2016 second quarter) for contract termination, $7 in asset retirement obligations for the rehabilitation of a coal mine related to the Warrick smelter, and $2 ($(1) in the 2016 second quarter) in other related costs. Additional charges may be recognized in future periods related to these actions.

In the second quarter and six-month period of 2015, Alcoa recorded Restructuring and other charges of $217 ($141 after-tax and noncontrolling interest) and $394 ($299 after-tax and noncontrolling interest), respectively.

Restructuring and other charges in the 2015 second quarter included $179 ($115 after-tax and noncontrolling interest) for exit costs related to decisions to permanently shut down and demolish a smelter and a power station (see below); $18 ($10 after-tax and noncontrolling interest) for the separation of approximately 120 employees (Alumina segment) and other charges related to the decisions to temporarily curtail both a portion of the capacity (443,000 metric-tons-per-year) at the refinery in Suriname and the remaining capacity (74,000 metric-tons-per-year) at the São Luís smelter in Brazil; $16 ($13 after-tax and noncontrolling interest) for layoff costs, including the separation of approximately 390 employees (210 in the Engineered Products and Solutions segment, 150 in the Primary Metals segment, and 30 in the Global Rolled Products segment); $10 ($7 after-tax and noncontrolling interest) related to post-closing adjustments associated with two December 2014 divestitures; a net credit of $5 ($3 after-tax and noncontrolling interest) for other miscellaneous items; and $1 ($1 after-tax and noncontrolling interest) for the reversal of a few layoff reserves related to prior periods.

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In the 2015 six-month period, Restructuring and other charges included the aforementioned $179 ($115 after-tax and noncontrolling interest); $159 ($149 after-tax and noncontrolling interest) related to the March 2015 divestiture of a rolling mill in Russia and post-closing adjustments associated with three December 2014 divestitures; $38 ($23 after-tax and noncontrolling interest) for the separation of approximately 800 employees (680 in the Primary Metals segment and 120 in the Alumina segment), supplier contract-related costs, and other charges associated with the aforementioned decisions to temporarily curtail certain capacity at the São Luís smelter and the refinery in Suriname; $29 ($21 after-tax and noncontrolling interest) for layoff costs, including the separation of approximately 600 employees (290 in the Engineered Products and Solutions segment, 150 in the Primary Metals segment, 60 in the Global Rolled Products segment, 50 in the Transportation and Construction Solutions segment, and 50 in Corporate); a net credit of $3 ($2 after-tax and noncontrolling interest) for other miscellaneous items; and $8 ($7 after-tax and noncontrolling interest) for the reversal of a number of small layoff reserves related to prior periods.

In the second quarter of 2015, management approved the permanent shutdown and demolition of the Poços de Caldas smelter (capacity of 96,000 metric-tons-per-year) in Brazil and the Anglesea power station (includes the closure of a related coal mine) in Australia. The entire capacity at Poços de Caldas has been temporarily idled since May 2014 and the Anglesea power station was shut down at the end of August 2015. Demolition and remediation activities related to the Poços de Caldas smelter and the Anglesea power station began in late 2015 and are expected to be completed by the end of 2026 and 2020, respectively.

The decision on the Poços de Caldas smelter was due to management’s conclusion that the smelter was no longer competitive as a result of challenging global market conditions for primary aluminum, which led to the initial curtailment, that have not dissipated and higher costs. For the Anglesea power station, the decision was made because a sale process did not result in a sale and there would be imminent operating costs and financial constraints related to this site in the remainder of 2015 and beyond, including significant costs to source coal from available resources, necessary maintenance costs, and a depressed outlook for forward electricity prices. The Anglesea power station previously supplied approximately 40 percent of the power needs for the Point Henry smelter, which was closed in August 2014.

In the 2015 second quarter and six-month period, costs related to the shutdown actions included asset impairments of $86, representing the write-off of the remaining book value of all related properties, plants, and equipment; $11 for the layoff of approximately 100 employees (Primary Metals segment); and $82 in other exit costs. Additionally in the 2015 second quarter and six-month period, remaining inventories, mostly operating supplies and raw materials, were written down to their net realizable value, resulting in a charge of $4 ($2 after-tax and noncontrolling interest), which was recorded in Cost of goods sold on the accompanying Statement of Consolidated Operations. The other exit costs of $82 represent $45 in asset retirement obligations and $29 in environmental remediation, both of which were triggered by the decisions to permanently shut down and demolish the aforementioned structures in Brazil and Australia (includes the rehabilitation of a related coal mine), and $8 in supplier and customer contract-related costs.

Alcoa does not include Restructuring and other charges in the results of its reportable segments. The pretax impact of allocating such charges to segment results would have been as follows:

	Second quarter ended June 30,					Six months ended June 30,
	2016			2015		2016			2015
Alumina	$	(1	)	$	10	$	4		$	17
Primary Metals		10			173		88			198
Global Rolled Products		—			1		2			136
Engineered Products and Solutions		9			8		17			11
Transportation and Construction Solutions		8			1		8			3
Segment total		26			193		119			365
Corporate		(3	)		24		(3	)		29
Total restructuring and other charges	$	23		$	217	$	116		$	394

As of June 30, 2016, approximately 730 of the 1,100 employees associated with 2016 restructuring programs, approximately 3,800 of the 5,000 employees (previously 5,200) associated with 2015 restructuring programs, and approximately 2,600 of the 2,700 employees (previously 2,870) associated with 2014 restructuring programs were separated. The total number of employees associated with both 2015 and 2014 restructuring programs was updated to reflect employees, who were initially identified for separation,

13

accepting other positions within Alcoa and natural attrition. Most of the remaining separations for the 2016 restructuring programs and all of the remaining separations for the 2015 and 2014 restructuring programs are expected to be completed by the end of 2016.

In the 2016 second quarter and six-month period, cash payments of $9 and $11, respectively, were made against layoff reserves related to 2016 restructuring programs, $30 and $92, respectively, were made against layoff reserves related to 2015 restructuring programs, and $1 and $3, respectively, were made against layoff reserves related to 2014 restructuring programs.

Activity and reserve balances for restructuring charges were as follows:

	Layoff costs			Other exit costs			Total
Reserve balances at December 31, 2014	$	98		$	34		$	132
2015:
Cash payments		(111	)		(12	)		(123	)
Restructuring charges		299			233			532
Other*		(60	)		(231	)		(291	)
Reserve balances at December 31, 2015		226			24			250
2016:
Cash payments		(107	)		(22	)		(129	)
Restructuring charges		34			41			75
Other*		(31	)		1			(30	)
Reserve balances at June 30, 2016	$	122		$	44		$	166

* Other includes reversals of previously recorded restructuring charges and the effects of foreign currency translation. In the 2016 six-month period, Other for layoff costs also included a reclassification of $1 in pension benefits costs, as this obligation was included in Alcoa’s separate liability for pension benefits obligations (see Note N). Additionally in the 2016 six-month period, Other for other exit costs also included a reclassification of $7 in asset retirement obligations, as this liability was included in Alcoa’s separate reserve for asset retirement obligations. In 2015, Other for layoff costs also included a reclassification of $35 in pension and other postretirement benefits costs, as these obligations were included in Alcoa’s separate liability for pension and other postretirement benefits obligations. Additionally in 2015, Other for other exit costs also included a reclassification of the following restructuring charges: $76 in asset retirement and $86 in environmental obligations, as these liabilities were included in Alcoa’s separate reserves for asset retirement obligations and environmental remediation.

The remaining reserves are expected to be paid in cash during the remainder of 2016, with the exception of approximately $25 to $30, which is expected to be paid over the next several years for ongoing site remediation work and special layoff benefit payments.

E. Acquisitions and Divestitures – In April 2016, Alcoa completed the sale of the Remmele Medical business to LISI MEDICAL for $102 in cash ($99 net of transaction costs), which was included in Proceeds from the sale of assets and businesses on the accompanying Statement of Consolidated Cash Flows. This business, which was part of the RTI International Metals (RTI) acquisition (see below), manufactures precision-machined metal products for customers in the minimally invasive surgical device and implantable device markets. No gain was recorded on this transaction as the excess of the proceeds over the carrying value of the net assets of this business was reflected as a purchase price adjustment (decrease to goodwill of $44) to the preliminary allocation of the purchase price related to Alcoa’s acquisition of RTI. While owned by Alcoa, the operating results and assets and liabilities of this business were included in the Engineered Products and Solutions segment. This business generated sales of approximately $20 from January 1, 2016 through the divestiture date, April 29, 2016, and, at the time of the divestiture, had approximately 330 employees. This transaction is subject to certain post-closing adjustments as defined in the sale agreement.

In July 2016, Alcoa’s wholly-owned subsidiary, Alcoa Power Generating Inc., reached an agreement to sell its 215-megawatt Yadkin Hydroelectric Project (Yadkin) to ISQ Hydro Aggregator LLC. Yadkin encompasses four hydroelectric power developments (reservoirs, dams and powerhouses), known as High Rock, Tuckertown, Narrows and Falls, situated along a 38-mile stretch of the Yadkin River through the central part of North Carolina. This transaction is expected to close in the second half of 2016, subject to customary federal and state regulatory approvals. The power generated by Yadkin is primarily sold into the open market. Yadkin generated sales of approximately $20 in 2015, and had approximately 35 employees as of June 30, 2016. The carrying value of the net assets to be sold was $128 and $127 as of June 30, 2016 and December 31, 2015, respectively, which consist mostly of properties, plants, and equipment.

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In March 2015, Alcoa completed the acquisition of an aerospace structural castings company, TITAL, for $204 (€188) in cash (an additional $1 (€1) was paid in September 2015 to settle working capital in accordance with the purchase agreement). TITAL, a privately held company with approximately 650 employees based in Germany, produces aluminum and titanium investment casting products for the aerospace and defense markets. The purpose of this acquisition is to capture increasing demand for advanced jet engine components made of titanium, establish titanium-casting capabilities in Europe, and expand existing aluminum casting capacity. The assets, including the associated goodwill, and liabilities of this business were included within Alcoa’s Engineered Products and Solutions segment since the date of acquisition. Based on the preliminary allocation of the purchase price, goodwill of $118 was recorded for this transaction. In the first quarter of 2016, the allocation of the purchase price was finalized, based, in part, on the completion of a third-party valuation of certain assets acquired, resulting in a $1 reduction of the initial goodwill amount. None of the $117 in goodwill is deductible for income tax purposes and no other intangible assets were identified. This transaction is no longer subject to post-closing adjustments.

In July 2015, Alcoa completed the acquisition of RTI, a global supplier of titanium and specialty metal products and services for the commercial aerospace, defense, energy, and medical device markets, for $870 in Alcoa common stock. The preliminary allocation of the purchase price resulted in total assets of $1,752, including $240 in goodwill and $73 in intangibles, $822 in total liabilities, and $60 in additional capital. In the 2016 six-month period, Alcoa updated the estimated beginning balances of certain assets acquired, including a decrease to each of properties, plants, and equipment of $110, inventories of $48, and intangible assets of $33 and an increase to goodwill of $54. These changes were based, in part, on management’s review of information from a preliminary third-party valuation and the sale of the medical device business (see above). The current allocation of the purchase price, which will be finalized in the third quarter of 2016, is subject to change upon further review by management.

F. Inventories

	June 30, 2016		December 31, 2015
Finished goods	$	827	$	811
Work-in-process		1,344		1,272
Bauxite and alumina		416		445
Purchased raw materials		650		720
Operating supplies		201		194
	$	3,438	$	3,442

At June 30, 2016 and December 31, 2015, the total amount of inventories valued on a LIFO basis was $1,335 and $1,373, respectively. If valued on an average-cost basis, total inventories would have been $567 and $559 higher at June 30, 2016 and December 31, 2015, respectively.

G. Investments – A summary of unaudited financial information for Alcoa’s equity investments is as follows (amounts represent 100% of investee financial information):

	Second quarter ended June 30,					Six months ended June 30,
	2016		2015			2016		2015
Sales	$	904	$	971		$	1,796	$	1,857
Cost of goods sold		679		862			1,360		1,557
Net income (loss)		14		(45	)		29		(86	)

In April 2016, Alcoa’s majority-owned subsidiary, Alcoa of Australia Limited (AofA), sold its 20% interest in a consortium, DBP, the owner and operator of the Dampier to Bunbury Natural Gas Pipeline (DBNGP) in Western Australia, to the only other member of the consortium, DUET Group. AofA received $145 (A$192) in cash, which was included in Sales of investments on the accompanying Statement of Consolidated Cash Flows, and recorded a gain of $27 (A$35) ($11 (A$15) after-tax and noncontrolling interest) in Other income, net on the accompanying Statement of Consolidated Operations. Prior to this transaction, AofA’s 20% interest was previously classified as an equity investment on Alcoa’s Consolidated Balance Sheet. As part of the transaction, AofA will maintain its current access to approximately 30% of the DBNGP transmission capacity for gas supply to its three alumina refineries in Western Australia. AofA is part of Alcoa World Alumina and Chemicals (AWAC), an unincorporated joint venture that consists of a group of companies, which are owned 60% by Alcoa and 40% by Alumina Limited of Australia.

15

In the 2016 six-month period, Alcoa sold various exchange-traded fixed income and equity securities held by its captive insurance company for $130, which was included in Sales of investments on the accompanying Statement of Consolidated Cash Flows, and recorded a loss of $3 ($2 after-tax) in Other income, net on the accompanying Statement of Consolidated Operations. Previously, these securities were classified as available-for-sale investments on Alcoa’s Consolidated Balance Sheet and were carried at fair value with unrealized gains and losses recognized in other comprehensive income. As of June 30, 2016 and December 31, 2015, the carrying value of available-for-sale-securities was $68 and $193, respectively, which was included in Investments on the accompanying Consolidated Balance Sheet.

H. Other Noncurrent Assets – In the first quarter of 2016, Alcoa received $234 in proceeds from the redemption of certain company-owned life insurance policies. In the second quarter of 2016, Alcoa liquidated additional company-owned life insurance policies for $223 in cash. Both of these amounts were included in Proceeds from the sale of assets and businesses on the accompanying Statement of Consolidated Cash Flows. As the cash received was equivalent to the cash surrender value of these policies, no gain or loss was recognized on the sales of these policies. As of June 30, 2016 and December 31, 2015, the cash surrender value of life insurance policies was $26 and $492, respectively, which was included in Other noncurrent assets on the accompanying Consolidated Balance Sheet.

I. Contingencies and Commitments

Contingencies

Litigation

On June 5, 2015, Alcoa World Alumina LLC (“AWA”) and St. Croix Alumina, L.L.C. (“SCA”) filed a complaint in Delaware Chancery Court for a declaratory judgment and injunctive relief to resolve a dispute between Alcoa and Glencore Ltd. (“Glencore”) with respect to claimed obligations under a 1995 asset purchase agreement between Alcoa and Glencore. The dispute arose from Glencore’s demand that Alcoa indemnify it for liabilities it may have to pay to Lockheed Martin (“Lockheed”) related to the St. Croix alumina refinery. Lockheed had earlier filed suit against Glencore in federal court in New York seeking indemnity for liabilities it had incurred and would incur to the U.S. Virgin Islands to remediate certain properties at the refinery property and claimed that Glencore was required by an earlier, 1989 purchase agreement to indemnify it. Glencore had demanded that Alcoa indemnify and defend it in the Lockheed case and threatened to claim against Alcoa in the New York action despite exclusive jurisdiction for resolution of disputes under the 1995 purchase agreement being in Delaware. After Glencore conceded that it was not seeking to add Alcoa to the New York action, AWA and SCA dismissed their complaint in the Chancery Court case and on August 6, 2015 filed a complaint for declaratory judgment in Delaware Superior Court. AWA and SCA filed a motion for judgment on the pleadings on September 16, 2015. Glencore answered AWA’s and SCA’s complaint and asserted counterclaims on August 27, 2015, and on October 2, 2015 filed its own motion for judgment on the pleadings. Argument on the parties’ motions was held by the court on December 7, 2015, and by order dated February 8, 2016, the court granted Alcoa’s motion and denied Glencore’s motion, resulting in Alcoa not being liable to indemnify Glencore for the Lockheed action. The decision also leaves for pretrial discovery and possible summary judgment or trial Glencore’s claims for costs and fees it incurred in defending and settling an earlier Superfund action brought against Glencore by the Government of the Virgin Islands. On February 17, 2016, Glencore filed notice of its application for interlocutory appeal of the February 8, 2016 ruling. AWA and SCA filed an opposition to that application on February 29, 2016. On March 10, 2016, the court denied Glencore’s motion for interlocutory appeal and on the same day entered judgment on claims other than Glencore’s claims for costs and fees it incurred in defending and settling the earlier Superfund action brought against Glencore by the Government of the Virgin Islands. On March 29, 2016, Glencore filed a withdrawal of its notice of interlocutory appeal, and on April 6, 2016, Glencore filed an appeal of the court’s March 10, 2016 judgment to the Delaware Supreme Court. At this time, the Company is unable to reasonably predict the ultimate outcome for this matter.

Before 2002, Alcoa purchased power in Italy in the regulated energy market and received a drawback of a portion of the price of power under a special tariff in an amount calculated in accordance with a published resolution of the Italian Energy Authority, Energy Authority Resolution n. 204/1999 (“204/1999”). In 2001, the Energy Authority published another resolution, which clarified that the drawback would be calculated in the same manner, and in the same amount, in either the regulated or unregulated market.

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At the beginning of 2002, Alcoa left the regulated energy market to purchase energy in the unregulated market. Subsequently, in 2004, the Energy Authority introduced regulation no. 148/2004 which set forth a different method for calculating the special tariff that would result in a different drawback for the regulated and unregulated markets. Alcoa challenged the new regulation in the Administrative Court of Milan and received a favorable judgment in 2006. Following this ruling, Alcoa continued to receive the power price drawback in accordance with the original calculation method, through 2009, when the European Commission declared all such special tariffs to be impermissible “state aid.” In 2010, the Energy Authority appealed the 2006 ruling to the Consiglio di Stato (final court of appeal). On December 2, 2011, the Consiglio di Stato ruled in favor of the Energy Authority and against Alcoa, thus presenting the opportunity for the energy regulators to seek reimbursement from Alcoa of an amount equal to the difference between the actual drawback amounts received over the relevant time period, and the drawback as it would have been calculated in accordance with regulation 148/2004. On February 23, 2012, Alcoa filed its appeal of the decision of the Consiglio di Stato (this appeal was subsequently withdrawn in March 2013). On March 26, 2012, Alcoa received a letter from the agency (Cassa Conguaglio per il Settore Eletrico (CCSE)) responsible for making and collecting payments on behalf of the Energy Authority demanding payment in the amount of approximately $110 (€85), including interest. By letter dated April 5, 2012, Alcoa informed CCSE that it disputes the payment demand of CCSE since (i) CCSE was not authorized by the Consiglio di Stato decisions to seek payment of any amount, (ii) the decision of the Consiglio di Stato has been appealed (see above), and (iii) in any event, no interest should be payable. On April 29, 2012, Law No. 44 of 2012 (“44/2012”) came into effect, changing the method to calculate the drawback. On February 21, 2013, Alcoa received a revised request letter from CCSE demanding Alcoa’s subsidiary, Alcoa Trasformazioni S.r.l., make a payment in the amount of $97 (€76), including interest, which reflects a revised calculation methodology by CCSE and represents the high end of the range of reasonably possible loss associated with this matter of $0 to $97 (€76). Alcoa rejected that demand and formally challenged it through an appeal before the Administrative Court on April 5, 2013. The Administrative Court scheduled a hearing for December 19, 2013, which was subsequently postponed until April 17, 2014, and further postponed until June 19, 2014. On that date, the Administrative Court listened to Alcoa’s oral argument, and on September 2, 2014, rendered its decision. The Administrative Court declared the payment request of CCSE and the Energy Authority to Alcoa to be unsubstantiated based on the 148/2004 resolution with respect to the January 19, 2007 through November 19, 2009 timeframe. On December 18, 2014, the CCSE and the Energy Authority appealed the Administrative Court’s September 2, 2014 decision; however, a date for the hearing has not been scheduled. As a result of the conclusion of the European Commission Matter on January 26, 2016 (see Note N in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015), management modified its outlook with respect to a portion of the pending legal proceedings related to this matter. As such, a charge of $37 (€34) was recorded in Restructuring and other charges for the year ended December 31, 2015 to establish a partial reserve for this matter. At this time, the Company is unable to reasonably predict the ultimate outcome for this matter.

Environmental Matters

Alcoa participates in environmental assessments and cleanups at more than 100 locations. These include owned or operating facilities and adjoining properties, previously owned or operating facilities and adjoining properties, and waste sites, including Superfund (Comprehensive Environmental Response, Compensation and Liability Act (CERCLA)) sites.

A liability is recorded for environmental remediation when a cleanup program becomes probable and the costs can be reasonably estimated. As assessments and cleanups proceed, the liability is adjusted based on progress made in determining the extent of remedial actions and related costs. The liability can change substantially due to factors such as the nature and extent of contamination, changes in remedial requirements, and technological changes, among others.

Alcoa’s remediation reserve balance was $606 and $604 at June 30, 2016 and December 31, 2015 (of which $49 and $50 was classified as a current liability), respectively, and reflects the most probable costs to remediate identified environmental conditions for which costs can be reasonably estimated.

In the 2016 second quarter and six-month period, the remediation reserve was increased by $6 and $13, respectively. The change in both periods was due to a net charge associated with a number of sites and was recorded in Cost of goods sold on the accompanying Statement of Consolidated Operations.

Payments related to remediation expenses applied against the reserve were $14 and $25 in the 2016 second quarter and six-month period, respectively. These amounts include expenditures currently mandated, as well as those not required by any regulatory authority or third party. In the 2016 second quarter and six-month period, the change in the reserve also reflects an increase of $6 and $11, respectively, due to the effects of foreign currency translation and an increase of $3 related to the acquisition of RTI International Metals (see Note E).

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Included in annual operating expenses are the recurring costs of managing hazardous substances and environmental programs. These costs are estimated to be approximately 2% of cost of goods sold.

The following discussion provides details regarding the current status of certain significant reserves related to current or former Alcoa sites.

Massena West, NY—Alcoa has an ongoing remediation project related to the Grasse River, which is adjacent to Alcoa’s Massena plant site. Many years ago, it was determined that sediments and fish in the river contain varying levels of polychlorinated biphenyls (PCBs). The project, which was selected by the U.S. Environmental Protection Agency (EPA) in a Record of Decision (ROD) issued in April 2013, is aimed at capping PCB contaminated sediments with concentration in excess of one part per million in the main channel of the river and dredging PCB contaminated sediments in the near-shore areas where total PCBs exceed one part per million. At June 30, 2016 and December 31, 2015, the reserve balance associated with this matter was $232 and $234, respectively. Alcoa is in the planning and design phase, which is expected to be completed in 2017. Subsequently in 2017, the actual remediation fieldwork is expected to commence and take approximately four years. The majority of the project funding is expected to be spent between 2017 and 2021.

Sherwin, TX—In connection with the sale of the Sherwin alumina refinery, which was required to be divested as part of the Reynolds merger in 2000, Alcoa agreed to retain responsibility for the remediation of the then existing environmental conditions, as well as a pro rata share of the final closure of the active bauxite residue waste disposal areas (known as the Copano facility). Alcoa’s share of the closure costs is proportional to the total period of operation of the active waste disposal areas. At June 30, 2016 and December 31, 2015, the reserve balance associated with Sherwin was $30. Approximately half of the project funding is expected to be spent through 2019. The remainder is not expected to be spent in the foreseeable future as it is dependent upon the operating life of the active waste disposal areas.

East St. Louis, IL—Alcoa has an ongoing remediation project related to an area used for the disposal of bauxite residue from former alumina refining operations. The project, which was selected by the EPA in a ROD issued in July 2012, is aimed at implementing a soil cover over the affected area. On November 1, 2013, the U.S. Department of Justice lodged a consent decree on behalf of the EPA for Alcoa to conduct the work outlined in the ROD. This consent decree was entered as final in February 2014 by the U.S. Department of Justice. As a result, Alcoa began construction in March 2014; the field work on this project was completed at the end of June 2016. Alcoa is now in the documentation and final reporting stage with the EPA, which will continue into 2017 when this matter will transition into a long-term inspection and monitoring program (Alcoa has a second project in East St. Louis that is separate from the matter presented herein on which Alcoa is expecting an EPA decision at some point in the remainder of 2016 – any resulting liability is not expected to be material). At June 30, 2016 and December 31, 2015, the reserve balance associated with this matter was $6 and $8, respectively.

Fusina and Portovesme, Italy—In 1996, Alcoa acquired the Fusina smelter and rolling operations and the Portovesme smelter, both of which are owned by Alcoa’s subsidiary Alcoa Trasformazioni S.r.l. (“Trasformazioni”), from Alumix, an entity owned by the Italian Government. At the time of the acquisition, Alumix indemnified Alcoa for pre-existing environmental contamination at the sites. In 2004, the Italian Ministry of Environment and Protection of Land and Sea (MOE) issued orders to Trasformazioni and Alumix for the development of a clean-up plan related to soil contamination in excess of allowable limits under legislative decree and to institute emergency actions and pay natural resource damages. Trasformazioni appealed the orders and filed suit against Alumix, among others, seeking indemnification for these liabilities under the provisions of the acquisition agreement. In 2009, Ligestra S.r.l. (“Ligestra”), Alumix’s successor, and Trasformazioni agreed to a stay of the court proceedings while investigations were conducted and negotiations advanced towards a possible settlement.

In December 2009, Trasformazioni and Ligestra reached an initial agreement for settlement of the liabilities related to Fusina while negotiations continued related to Portovesme (see below). The agreement outlined an allocation of payments to the MOE for emergency action and natural resource damages and the scope and costs for a proposed soil remediation project, which was formally presented to the MOE in mid-2010. The agreement was contingent upon final acceptance of the remediation project by the MOE. As a result of entering into this agreement, Alcoa increased the reserve by $12 in 2009 for Fusina. Based on comments received from the MOE and local and regional environmental authorities, Trasformazioni submitted a revised remediation plan in the first half of 2012; however, such revisions did not require any change to the existing reserve. In October 2013, the MOE approved the project submitted by Alcoa, resulting in no adjustment to the reserve.

In January 2014, in anticipation of Alcoa reaching a final administrative agreement with the MOE, Alcoa and Ligestra entered into a final agreement related to Fusina for allocation of payments to the MOE for emergency action and natural resource damages and the costs for the approved soil remediation project. The agreement resulted in Ligestra assuming 50% to 80% of all payments and remediation costs. On February 27, 2014, Alcoa and the MOE reached a final administrative agreement for conduct of work. The agreement includes both a soil and groundwater remediation project estimated to cost $33 (€24) and requires payments of $25

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(€18) to the MOE for emergency action and natural resource damages. The remediation projects are slated to begin as soon as Alcoa receives final approval from the Ministry of Infrastructure. Based on the final agreement with Ligestra, Alcoa’s share of all costs and payments is $17 (€12), of which $9 (€6) related to the damages will be paid annually over a 10-year period, which began in April 2014, and was previously fully reserved.

Separately, in 2009, due to additional information derived from the site investigations conducted at Portovesme, Alcoa increased the reserve by $3. In November 2011, Trasformazioni and Ligestra reached an agreement for settlement of the liabilities related to Portovesme, similar to the one for Fusina. A proposed soil remediation project for Portovesme was formally presented to the MOE in June 2012. Neither the agreement with Ligestra nor the proposal to the MOE resulted in a change to the reserve for Portovesme. In November 2013, the MOE rejected the proposed soil remediation project and requested a revised project be submitted. In May 2014, Trasformazioni and Ligestra submitted a revised soil remediation project that addressed certain stakeholders’ concerns. Alcoa increased the reserve by $3 in 2014 to reflect the estimated higher costs associated with the revised soil remediation project, as well as current operating and maintenance costs of the Portovesme site.

In October 2014, the MOE required a further revised project be submitted to reflect the removal of a larger volume of contaminated soil than what had been proposed, as well as design changes for the cap related to the remaining contaminated soil left in place and the expansion of an emergency containment groundwater pump and treatment system that was previously installed. Trasformazioni and Ligestra submitted the further revised soil remediation project in February 2015. As a result, Alcoa increased the reserve by $7 in March 2015 to reflect the increase in the estimated costs of the project. In October 2015, Alcoa received a final ministerial decree approving the February 2015 revised soil remediation project. Work on the soil remediation project commenced in the second quarter of 2016 and is expected to be completed in 2019. Alcoa and Ligestra are now working on a final groundwater remediation project, which will be submitted to the MOE for review during the second half of 2016. The ultimate outcome of this matter may result in a change to the existing reserve for Portovesme.

Baie Comeau, Quebec, Canada—In August 2012, Alcoa presented an analysis of remediation alternatives to the Quebec Ministry of Sustainable Development, Environment, Wildlife and Parks (MDDEP), in response to a previous request, related to known PCBs and polycyclic aromatic hydrocarbons (PAHs) contained in sediments of the Anse du Moulin bay. As such, Alcoa increased the reserve for Baie Comeau by $25 in 2012 to reflect the estimated cost of Alcoa’s recommended alternative, consisting of both dredging and capping of the contaminated sediments. In July 2013, Alcoa submitted the Environmental Impact Assessment for the project to the MDDEP. The MDDEP notified Alcoa that the project as it was submitted was approved and a final ministerial decree was issued in July 2015. As a result, no further adjustment to the reserve was required in 2015. The decree provides final approval for the project and allows Alcoa to start work on the final project design, which is expected to be completed in the second half of 2016 with construction on the project expected to begin in 2017. Completion of the final project design and bidding of the project may result in additional liability in a future period.

Mosjøen, Norway—In September 2012, Alcoa presented an analysis of remediation alternatives to the Norwegian Environmental Agency (NEA) (formerly the Norwegian Climate and Pollution Agency, or “Klif”), in response to a previous request, related to known PAHs in the sediments located in the harbor and extending out into the fjord. As such, Alcoa increased the reserve for Mosjøen by $20 in 2012 to reflect the estimated cost of the baseline alternative for dredging of the contaminated sediments. A proposed project reflecting this alternative was formally presented to the NEA in June 2014, and was resubmitted in late 2014 to reflect changes by the NEA. The revised proposal did not result in a change to the reserve for Mosjøen.

In April 2015, the NEA notified Alcoa that the revised project was approved and required submission of the final project design before issuing a final order. Alcoa completed and submitted the final project design, which identified a need to stabilize the related wharf structure to allow for the sediment dredging in the harbor. As a result, Alcoa increased the reserve for Mosjøen by $11 in June 2015 to reflect the estimated cost of the wharf stabilization. Also in June 2015, the NEA issued a final order approving the project as well as the final project design. In September 2015, Alcoa increased the reserve by $1 to reflect the potential need (based on prior experience with similar projects) to perform additional dredging if the results of sampling, which is required by the order, don’t achieve the required cleanup levels. Project construction commenced in the first quarter of 2016 and is expected to be completed by the end of 2017.

Tax

In September 2010, following a corporate income tax audit covering the 2003 through 2005 tax years, an assessment was received as a result of Spain’s tax authorities disallowing certain interest deductions claimed by a Spanish consolidated tax group owned by the Company. An appeal of this assessment in Spain’s Central Tax Administrative Court by the Company was denied in October 2013. In December 2013, the Company filed an appeal of the assessment in Spain’s National Court.

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Additionally, following a corporate income tax audit of the same Spanish tax group for the 2006 through 2009 tax years, Spain’s tax authorities issued an assessment in July 2013 similarly disallowing certain interest deductions. In August 2013, the Company filed an appeal of this second assessment in Spain’s Central Tax Administrative Court, which was denied in January 2015. The Company filed an appeal of this second assessment in Spain’s National Court in March 2015.

At June 30, 2016, the combined assessments total $269 (€243), including interest. The Company believes it has meritorious arguments to support its tax position and intends to vigorously litigate the assessments through Spain’s court system. However, in the event the Company is unsuccessful, a portion of the assessments may be offset with existing net operating losses available to the Spanish consolidated tax group. Additionally, it is possible that the Company may receive similar assessments for tax years subsequent to 2009. At this time, the Company is unable to reasonably predict an outcome for this matter.

In March 2013, Alcoa’s subsidiary, Alcoa World Alumina Brasil (AWAB), was notified by the Brazilian Federal Revenue Office (RFB) that approximately $110 (R$220) of value added tax credits previously claimed are being disallowed and a penalty of 50% assessed. Of this amount, AWAB received $41 (R$82) in cash in May 2012. The value added tax credits were claimed by AWAB for both fixed assets and export sales related to the Juruti bauxite mine and São Luís refinery expansion. The RFB has disallowed credits they allege belong to the consortium in which AWAB owns an interest and should not have been claimed by AWAB. Credits have also been disallowed as a result of challenges to apportionment methods used, questions about the use of the credits, and an alleged lack of documented proof. AWAB presented defense of its claim to the RFB on April 8, 2013. If AWAB is successful in this administrative process, the RFB would have no further recourse. If unsuccessful in this process, AWAB has the option to litigate at a judicial level. Separately from AWAB’s administrative appeal, in June 2015, new tax law was enacted repealing the provisions in the tax code that were the basis for the RFB assessing a 50% penalty in this matter. As such, the estimated range of reasonably possible loss is $0 to $32 (R$103), whereby the maximum end of the range represents the portion of the disallowed credits applicable to the export sales and excludes the 50% penalty. Additionally, the estimated range of disallowed credits related to AWAB’s fixed assets is $0 to $36 (R$117), which would increase the net carrying value of AWAB’s fixed assets if ultimately disallowed. It is management’s opinion that the allegations have no basis; however, at this time, management is unable to reasonably predict an outcome for this matter.

Between 2000 and 2002, Alcoa Alumínio (Alumínio) sold approximately 2,000 metric tons of metal per month from its Poços de Caldas facility, located in the State of Minas Gerais (the “State”), to Alfio, a customer also located in the State. Sales in the State were exempted from value-added tax (VAT) requirements. Alfio subsequently sold metal to customers outside of the State, but did not pay the required VAT on those transactions. In July 2002, Alumínio received an assessment from State auditors on the theory that Alumínio should be jointly and severally liable with Alfio for the unpaid VAT. In June 2003, the administrative tribunal found Alumínio liable, and Alumínio filed a judicial case in the State in February 2004 contesting the finding. In May 2005, the Court of First Instance found Alumínio solely liable, and a panel of a State appeals court confirmed this finding in April 2006. Alumínio filed a special appeal to the Superior Tribunal of Justice (STJ) in Brasilia (the federal capital of Brazil) later in 2006. In 2011, the STJ (through one of its judges) reversed the judgment of the lower courts, finding that Alumínio should neither be solely nor jointly and severally liable with Alfio for the VAT, which ruling was then appealed by the State. In August 2012, the STJ agreed to have the case reheard before a five-judge panel. A decision from this panel is pending, but additional appeals are likely. At June 30, 2016, the assessment totaled $43 (R$139), including penalties and interest. While the Company believes it has meritorious defenses, the Company is unable to reasonably predict an outcome.

Other

In connection with the sale in 2001 of Reynolds Metals Company’s (“Reynolds,” a subsidiary of Alcoa), alumina refinery in Gregory, Texas, Reynolds assigned an Energy Services Agreement (“ESA”) with Gregory Power Partners (“Gregory Power”) for purchase of steam and electricity by the refinery. On January 11, 2016, Sherwin Alumina Company, LLC (“Sherwin”), the current owner of the refinery, and one of its affiliate entities, filed bankruptcy petitions in Corpus Christi, Texas for reorganization under Chapter 11 of the Bankruptcy Code. On January 26, 2016, Gregory Power delivered notice to Reynolds that Sherwin’s bankruptcy filing constitutes a breach of the ESA; on January 29, 2016, Reynolds responded that the filing does not constitute a breach.

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Sherwin has indicated that it may cease operations if an acceptable, modified ESA cannot be achieved and it is not able to continue its bauxite supply agreement with a subsidiary of Noranda Aluminum Holding Corporation. If Sherwin is unable to confirm a revised plan of reorganization to continue operation of the refinery, Reynolds may face claims under the ESA or for environmental remediation at the refinery and associated properties. This matter is neither estimable nor probable; therefore, at this time, the Company is unable to reasonably predict the ultimate outcome.

In addition to the matters discussed above, various other lawsuits, claims, and proceedings have been or may be instituted or asserted against Alcoa, including those pertaining to environmental, product liability, safety and health, and tax matters. While the amounts claimed in these other matters may be substantial, the ultimate liability cannot now be determined because of the considerable uncertainties that exist. Therefore, it is possible that the Company’s liquidity or results of operations in a particular period could be materially affected by one or more of these other matters. However, based on facts currently available, management believes that the disposition of these other matters that are pending or asserted will not have a material adverse effect, individually or in the aggregate, on the financial position of the Company.

Commitments

Investments

Alcoa has an investment in a joint venture for the development, construction, ownership, and operation of an integrated aluminum complex (bauxite mine, alumina refinery, aluminum smelter, and rolling mill) in Saudi Arabia. The joint venture is owned 74.9% by the Saudi Arabian Mining Company (known as “Ma’aden”) and 25.1% by Alcoa and consists of three separate companies as follows: one each for the mine and refinery, the smelter, and the rolling mill. Alcoa accounts for its investment in the joint venture under the equity method. Capital investment in the project is expected to total approximately $10,800 (SAR 40.5 billion) and has been funded through a combination of equity contributions by the joint venture partners and project financing by the joint venture, which has been guaranteed by both partners (see below). Both the equity contributions and the guarantees of the project financing are based on the joint venture’s partners’ ownership interests. Originally, it was estimated that Alcoa’s total equity investment in the joint venture would be approximately $1,100, of which Alcoa has contributed $982, including $1 in the 2016 six-month period. Based on changes to both the project’s capital investment and equity and debt structure from the initial plans, the estimated $1,100 equity contribution may be reduced. As of June 30, 2016 and December 31, 2015, the carrying value of Alcoa’s investment in this project was $883 and $928, respectively.

The smelting and rolling mill companies have project financing totaling $4,227 (reflects principal repayments made through June 30, 2016), of which $1,061 represents Alcoa’s share (the equivalent of Alcoa’s 25.1% interest in the smelting and rolling mill companies). In conjunction with the financings, Alcoa issued guarantees on behalf of the smelting and rolling mill companies to the lenders in the event that such companies default on their debt service requirements through 2017 and 2020 for the smelting company and 2018 and 2021 for the rolling mill company (Ma’aden issued similar guarantees for its 74.9% interest). Alcoa’s guarantees for the smelting and rolling mill companies cover total debt service requirements of $142 in principal and up to a maximum of approximately $30 in interest per year (based on projected interest rates). At June 30, 2016 and December 31, 2015, the combined fair value of the guarantees was $4 and $7, respectively, which was included in Other noncurrent liabilities and deferred credits on the accompanying Consolidated Balance Sheet.

The mining and refining company has project financing totaling $2,232, of which $560 represents AWAC’s 25.1% interest in the mining and refining company. In conjunction with the financings, Alcoa, on behalf of AWAC, issued guarantees to the lenders in the event that the mining and refining company defaults on its debt service requirements through 2019 and 2024 (Ma’aden issued similar guarantees for its 74.9% interest). Alcoa’s guarantees for the mining and refining company cover total debt service requirements of $120 in principal and up to a maximum of approximately $30 in interest per year (based on projected interest rates). At both June 30, 2016 and December 31, 2015, the combined fair value of the guarantees was $3, which was included in Other noncurrent liabilities and deferred credits on the accompanying Consolidated Balance Sheet. In the event Alcoa would be required to make payments under the guarantees, 40% of such amount would be contributed to Alcoa by Alumina Limited, consistent with its ownership interest in AWAC.

In 2004, AofA acquired a 20% interest in a consortium, which subsequently purchased the Dampier to Bunbury Natural Gas Pipeline (DBNGP) in Western Australia, in exchange for an initial cash investment of $17 (A$24). The investment in the DBNGP, which was classified as an equity investment, was made in order to secure a competitively priced long-term supply of natural gas to

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AofA’s refineries in Western Australia. AofA made additional contributions of $141 (A$176) for its share of the pipeline capacity expansion and other operational purposes of the consortium through September 2011. In late 2011, the consortium initiated a three-year equity call plan to improve its capitalization structure. This plan required AofA to contribute $39 (A$40), all of which was made through December 2014. Following the completion of the three-year equity call plan in December 2014, the consortium initiated a new equity call plan to further improve its capitalization structure. This plan required AofA to contribute $30 (A$36) through mid-2016, of which $20 (A$27) was made through March 31, 2016, including $3 (A$5) in the 2016 first quarter.

In April 2016, AofA sold its interest in the consortium (see Note G), effectively terminating its remaining obligation to make contributions under the current equity call plan. As part of the sale transaction, AofA will maintain its current access to approximately 30% of the DBNGP transmission capacity for gas supply to its three alumina refineries in Western Australia under an existing agreement to purchase gas transmission services from the DBNGP. At June 30, 2016, AofA has an asset of $275 (A$372) representing prepayments made under the agreement for future gas transmission services.

On April 8, 2015, AofA secured a new 12-year gas supply agreement to power its three alumina refineries in Western Australia beginning in July 2020. This agreement was conditional on the completion of a third-party acquisition of the related energy assets from the then-current owner, which occurred in June 2015. The terms of AofA’s gas supply agreement required a prepayment of $500 to be made in two installments. The first installment of $300 was made at the time of the completion of the third-party acquisition in June 2015 and the second installment of $200 was made in April 2016. Both of these amounts were included in (Increase) in noncurrent assets on the accompanying Statement of Consolidated Cash Flows in the respective periods. At June 30, 2016 and December 31, 2015, Alcoa has an asset of $484 (A$654) and $288 (A$395), respectively, representing the respective prepayments made under this agreement, which were included in Other noncurrent assets on the accompanying Consolidated Balance Sheet.

J. Other Income, Net

	Second quarter ended June 30,						Six months ended June 30,
	2016			2015			2016			2015
Equity loss	$	15		$	24		$	37		$	44
Interest income		(5	)		(4	)		(9	)		(7	)
Foreign currency (gains) losses, net		(9	)		6			6			(10	)
Net gain from asset sales		(30	)		(28	)		(28	)		(28	)
Net loss on mark-to-market derivative contracts (O)		8			7			9			3
Other, net		(16	)		(5	)		(18	)		(14	)
	$	(37	)	$	—		$	(3	)	$	(12	)

In the 2016 second quarter and six-month period, Net gain from assets sales included a $27 gain related to the sale of an equity interest in a natural gas pipeline in Australia (see Note G). In the 2015 second quarter and six-month period, Net gain from assets sales included a $29 gain related to the sale of land around the Lake Charles, LA anode facility.

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K. Segment Information – The operating results of Alcoa’s reportable segments were as follows (differences between segment totals and consolidated totals are in Corporate):

	Alumina			Primary Metals			Global Rolled Products			Engineered Products and Solutions		Transportation and Construction Solutions		Total
Second quarter ended June 30, 2016
Sales:
Third-party sales	$	694		$	1,119		$	1,550		$	1,465	$	467	$	5,295
Intersegment sales		300			473			29			—		—		802
Total sales	$	994		$	1,592		$	1,579		$	1,465	$	467	$	6,097
Profit and loss:
Equity loss	$	(7	)	$	—		$	(10	)	$	—	$	—	$	(17	)
Depreciation, depletion, and amortization		66			101			55			62		12		296
Income taxes		40			—			28			87		18		173
After-tax operating income (ATOI)		109			41			68			180		46		444
Second quarter ended June 30, 2015
Sales:
Third-party sales	$	924		$	1,534		$	1,668		$	1,279	$	492	$	5,897
Intersegment sales		431			562			34			—		—		1,027
Total sales	$	1,355		$	2,096		$	1,702		$	1,279	$	492	$	6,924
Profit and loss:
Equity loss	$	(11	)	$	(5	)	$	(7	)	$	—	$	—	$	(23	)
Depreciation, depletion, and amortization		77			109			56			54		11		307
Income taxes		87			6			25			81		17		216
ATOI		215			67			76			165		44		567

	Alumina			Primary Metals			Global Rolled Products			Engineered Products and Solutions		Transportation and Construction Solutions		Total
Six months ended June 30, 2016
Sales:
Third-party sales	$	1,239		$	2,242		$	2,947		$	2,914	$	896	$	10,238
Intersegment sales		592			948			58			—		—		1,598
Total sales	$	1,831		$	3,190		$	3,005		$	2,914	$	896	$	11,836
Profit and loss:
Equity (loss) income	$	(21	)	$	4		$	(21	)	$	—	$	—	$	(38	)
Depreciation, depletion, and amortization		129			203			111			127		23		593
Income taxes		45			(16	)		62			165		32		288
ATOI		117			55			136			342		85		735
Six months ended June 30, 2015
Sales:
Third-party sales	$	1,811		$	3,106		$	3,289		$	2,536	$	963	$	11,705
Intersegment sales		932			1,254			70			—		—		2,256
Total sales	$	2,743		$	4,360		$	3,359		$	2,536	$	963	$	13,961
Profit and loss:
Equity loss	$	(18	)	$	(8	)	$	(16	)	$	—	$	—	$	(42	)
Depreciation, depletion, and amortization		157			218			112			105		21		613
Income taxes		179			63			61			157		31		491
ATOI		436			254			130			321		82		1,223

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The following table reconciles total segment ATOI to consolidated net income attributable to Alcoa:

	Second quarter ended June 30,						Six months ended June 30,
	2016			2015			2016			2015
Total segment ATOI	$	444		$	567		$	735		$	1,223
Unallocated amounts (net of tax):
Impact of LIFO		(10	)		36			(6	)		43
Metal price lag		7			(39	)		8			(62	)
Interest expense		(84	)		(80	)		(167	)		(160	)
Noncontrolling interests		(43	)		(67	)		(38	)		(127	)
Corporate expense		(77	)		(65	)		(132	)		(127	)
Restructuring and other charges		(15	)		(159	)		(76	)		(320	)
Other		(87	)		(53	)		(173	)		(135	)
Consolidated net income attributable to Alcoa	$	135		$	140		$	151		$	335

Items required to reconcile total segment ATOI to consolidated net income attributable to Alcoa include: the impact of LIFO inventory accounting; metal price lag; interest expense; noncontrolling interests; corporate expense (general administrative and selling expenses of operating the corporate headquarters and other global administrative facilities, along with depreciation and amortization on corporate-owned assets); restructuring and other charges; and other items, including intersegment profit eliminations, differences between tax rates applicable to the segments and the consolidated effective tax rate, and other nonoperating items such as foreign currency transaction gains/losses and interest income.

L. Earnings Per Share – Basic earnings per share (EPS) amounts are computed by dividing earnings, after the deduction of preferred stock dividends declared, by the average number of common shares outstanding. Diluted EPS amounts assume the issuance of common stock for all potentially dilutive share equivalents outstanding.

The information used to compute basic and diluted EPS attributable to Alcoa common shareholders was as follows (shares in millions):

	Second quarter ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Net income attributable to Alcoa	$	135	$	140	$	151	$	335
Less: preferred stock dividends declared		17		17		35		35
Net income available to Alcoa common shareholders – basic		118		123		116		300
Add: interest expense related to convertible notes		2		—		—		—
Add: dividends related to mandatory convertible preferred stock		—		—		—		—
Net income available to Alcoa common shareholders – diluted	$	120	$	123	$	116	$	300
Average shares outstanding – basic		1,315		1,222		1,314		1,222
Effect of dilutive securities:
Stock options		2		4		1		5
Stock and performance awards		11		11		11		11
Convertible notes		28		—		—		—
Mandatory convertible preferred stock		—		—		—		—
Average shares outstanding – diluted		1,356		1,237		1,326		1,238

In all periods presented, 77 million share equivalents related to mandatory convertible preferred stock were not included in the computation of diluted EPS because their effect was anti-dilutive. Additionally, in the 2016 six-month period, 28 million share equivalents related to convertible notes were not included in the computation of diluted EPS because their effect was anti-dilutive

Options to purchase 25 million and 13 million shares of common stock at a weighted average exercise price of $12.73 and $14.78 per share were outstanding as of June 30, 2016 and 2015, respectively, but were not included in the computation of diluted EPS because they were anti-dilutive, as the exercise prices of the options were greater than the average market price of Alcoa’s common stock.

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M. Receivables – Alcoa has an arrangement with three financial institutions to sell certain customer receivables without recourse on a revolving basis. The sale of such receivables is completed through the use of a bankruptcy remote special purpose entity, which is a consolidated subsidiary of Alcoa. This arrangement provides for minimum funding of $200 up to a maximum of $500 for receivables sold. The initial sale of receivables in March 2012 resulted in the setup of a deferred purchase price of $254. Alcoa has received net cash funding of $350 ($1,508 in draws and $1,158 in repayments) since the program’s inception, including $100 ($200 in draws and $100 in repayments) in the 2016 six-month period.

As of June 30, 2016 and December 31, 2015, the deferred purchase price receivable was $197 and $249, respectively, which was included in Other receivables on the accompanying Consolidated Balance Sheet. The deferred purchase price receivable is reduced as collections of the underlying receivables occur; however, as this is a revolving program, the sale of new receivables will result in an increase in the deferred purchase price receivable. The net change in the deferred purchase price receivable was reflected in the (Increase) in receivables line item on the accompanying Statement of Consolidated Cash Flows. This activity is reflected as an operating cash flow because the related customer receivables are the result of an operating activity with an insignificant, short-term interest rate risk.

The gross amount of receivables sold and total cash collected under this program since its inception was $27,521 and $26,974, respectively. Alcoa services the customer receivables for the financial institutions at market rates; therefore, no servicing asset or liability was recorded.

N. Pension and Other Postretirement Benefits – The components of net periodic benefit cost were as follows:

	Second quarter ended June 30,						Six months ended June 30,
Pension benefits	2016			2015			2016			2015
Service cost	$	41		$	44		$	81		$	88
Interest cost		122			145			244			289
Expected return on plan assets		(186	)		(189	)		(371	)		(377	)
Recognized net actuarial loss		102			117			204			235
Amortization of prior service cost		4			4			8			8
Settlements*		2			—			2			1
Special termination benefits*		—			10			1			12
Net periodic benefit cost	$	85		$	131		$	169		$	256

* Except for Settlements of $2 in both the second quarter and six months ended June 30, 2016, these amounts were recorded in Restructuring and other charges on the accompanying Statement of Consolidated Operations (see Note D).

	Second quarter ended June 30,						Six months ended June 30,
Other postretirement benefits	2016			2015			2016			2015
Service cost	$	4		$	4		$	7		$	7
Interest cost		19			23			37			46
Recognized net actuarial loss		5			5			11			9
Amortization of prior service benefit		(7	)		(10	)		(13	)		(19	)
Curtailments*		—			(1	)		—			(1	)
Special termination benefits*		—			1			—			1
Net periodic benefit cost	$	21		$	22		$	42		$	43

* These amounts were recorded in Restructuring and other charges on the accompanying Statement of Consolidated Operations (see Note D).

In conjunction with the annual measurement of the funded status of Alcoa’s pension and other postretirement benefit plans at December 31, 2015, management elected to change the manner in which the interest cost component of net periodic benefit cost is determined in 2016 and beyond. Previously, the interest cost component was determined by multiplying the single equivalent rate and the aggregate discounted cash flows of the plans’ projected benefit obligations. Under the new methodology, the interest cost component is determined by aggregating the product of the discounted cash flows of the plans’ projected benefit obligations for each year and an individual spot rate (referred to as the “spot rate” approach). In the 2016 second quarter and six-month period, this change resulted in a lower interest cost component of net periodic benefit cost under the new methodology compared to the previous

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methodology of $24 and $48, respectively, for pension plans and $4 and $8, respectively, for other postretirement benefit plans. Management believes this new methodology, which represents a change in an accounting estimate, is a better measure of the interest cost as each year’s cash flows are specifically linked to the interest rates of bond payments in the same respective year.

O. Derivatives and Other Financial Instruments

Fair Value

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value hierarchy distinguishes between (i) market participant assumptions developed based on market data obtained from independent sources (observable inputs) and (ii) an entity’s own assumptions about market participant assumptions developed based on the best information available in the circumstances (unobservable inputs). The fair value hierarchy consists of three broad levels, which gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:

• Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.

• Level 2 - Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly, including quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are observable for the asset or liability (e.g., interest rates); and inputs that are derived principally from or corroborated by observable market data by correlation or other means.

• Level 3 - Inputs that are both significant to the fair value measurement and unobservable.

Derivatives

Alcoa is exposed to certain risks relating to its ongoing business operations, including financial, market, political, and economic risks. The following discussion provides information regarding Alcoa’s exposure to the risks of changing commodity prices, interest rates, and foreign currency exchange rates.

Alcoa’s commodity and derivative activities are subject to the management, direction, and control of the Strategic Risk Management Committee (SRMC), which is composed of the chief executive officer, the chief financial officer, and other officers and employees that the chief executive officer selects. The SRMC meets on a periodic basis to review derivative positions and strategy and reports to Alcoa’s Board of Directors on the scope of its activities.

The aluminum, energy, interest rate, and foreign exchange contracts are held for purposes other than trading. They are used primarily to mitigate uncertainty and volatility, and to cover underlying exposures. Alcoa is not involved in trading activities for energy, weather derivatives, or other nonexchange commodity trading activities.

A number of Alcoa’s aluminum, energy, and foreign exchange contracts are classified as Level 1 and an interest rate contract is classified as Level 2 under the fair value hierarchy. These energy, foreign exchange, and interest rate contracts are not material to Alcoa’s Consolidated Financial Statements for all periods presented.

For the aluminum contracts classified as Level 1, the total fair value of derivatives recorded as assets and liabilities was $6 and $11, respectively, at June 30, 2016 and $8 and $58, respectively, at December 31, 2015. These contracts were entered into to either hedge forecasted sales or purchases of aluminum in order to manage the associated aluminum price risk. Certain of these contracts are designated as hedging instruments, either fair value or cash flow, and the remaining are not designated as such. Combined, Alcoa recognized a net gain of $1 and $3 in the 2016 second quarter and six-month period, respectively, and a net gain of $15 and $41 in the 2015 second quarter and six-month period, respectively, in Sales on the accompanying Statement of Consolidated Operations related to these aluminum contracts.

In addition to the Level 1 and 2 derivative instruments described above, Alcoa has ten derivative instruments classified as Level 3 under the fair value hierarchy. These instruments are composed of eight embedded aluminum derivatives, an energy contract, and an embedded credit derivative, all of which relate to energy supply contracts associated with nine smelters and three refineries. Five of the embedded aluminum derivatives and the energy contract were designated as cash flow hedging instruments and three of the embedded aluminum derivatives and the embedded credit derivative were not designated as hedging instruments.

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The following section describes the valuation methodologies used by Alcoa to measure its Level 3 derivative instruments at fair value. Derivative instruments classified as Level 3 in the fair value hierarchy represent those in which management has used at least one significant unobservable input in the valuation model. Alcoa uses a discounted cash flow model to fair value all Level 3 derivative instruments. Where appropriate, the description below includes the key inputs to those models and any significant assumptions. These valuation models are reviewed and tested at least on an annual basis.

Inputs in the valuation models for Level 3 derivative instruments are composed of the following: (i) quoted market prices (e.g., aluminum prices on the 10-year London Metal Exchange (LME) forward curve and energy prices), (ii) significant other observable inputs (e.g., information concerning time premiums and volatilities for certain option type embedded derivatives and regional premiums for aluminum contracts), and (iii) unobservable inputs (e.g., aluminum and energy prices beyond those quoted in the market). For periods beyond the term of quoted market prices for aluminum, Alcoa estimates the price of aluminum by extrapolating the 10-year LME forward curve. Additionally, for periods beyond the term of quoted market prices for energy, management has developed a forward curve based on independent consultant market research. Where appropriate, valuations are adjusted for various factors such as liquidity, bid/offer spreads, and credit considerations. Such adjustments are generally based on available market evidence (Level 2). In the absence of such evidence, management’s best estimate is used (Level 3). If a significant input that is unobservable in one period becomes observable in a subsequent period, the related asset or liability would be transferred to the appropriate classification (Level 1 or 2) in the period of such change (there were no such transfers in the periods presented).

Alcoa has two power contracts, each of which contain an embedded derivative that indexes the price of power to the LME price of aluminum. Additionally, Alcoa has three power contracts, each of which contain an embedded derivative that indexes the price of power to the LME price of aluminum plus the Midwest premium. The embedded derivatives in these five power contracts are primarily valued using observable market prices; however, due to the length of the contracts, the valuation models also require management to estimate the long-term price of aluminum based upon an extrapolation of the 10-year LME forward curve and/or 5-year Midwest premium curve. Significant increases or decreases in the actual LME price beyond 10 years and/or the Midwest premium beyond 5 years would result in a higher or lower fair value measurement. An increase in actual LME price and/or the Midwest premium over the inputs used in the valuation models will result in a higher cost of power and a corresponding decrease to the derivative asset or increase to the derivative liability. The embedded derivatives have been designated as cash flow hedges of forward sales of aluminum. Unrealized gains and losses were included in Other comprehensive (loss) income on the accompanying Consolidated Balance Sheet while realized gains and losses were included in Sales on the accompanying Statement of Consolidated Operations.

Also, Alcoa has a power contract (expires in September 2016 – see below) separate from above that contains an LME-linked embedded derivative. The embedded derivative is valued using the probability and interrelationship of future LME prices, Australian dollar to U.S. dollar exchange rates, and the U.S. consumer price index. Significant increases or decreases in the LME price would result in a higher or lower fair value measurement. An increase in actual LME price over the inputs used in the valuation model will result in a higher cost of power and a corresponding decrease to the derivative asset. This embedded derivative did not qualify for hedge accounting treatment. Unrealized gains and losses from the embedded derivative were included in Other income, net on the accompanying Statement of Consolidated Operations while realized gains and losses were included in Cost of goods sold on the accompanying Statement of Consolidated Operations as electricity purchases were made under the contract. At the time this derivative asset was recognized, an equivalent amount was recognized as a deferred credit in Other noncurrent liabilities and deferred credits on the accompanying Consolidated Balance Sheet. This deferred credit is recognized in Other income, net on the accompanying Statement of Consolidated Operations as power is received over the life of the contract.

Additionally, Alcoa has a natural gas supply contract, which has an LME-linked ceiling. This embedded derivative is valued using probabilities of future LME aluminum prices and the price of Brent crude oil (priced on Platts), including the interrelationships between the two commodities subject to the ceiling. Any change in the interrelationship would result in a higher or lower fair value measurement. An LME ceiling was embedded into the contract price to protect against an increase in the price of oil without a corresponding increase in the price of LME. An increase in oil prices with no similar increase in the LME price would limit the increase of the price paid for natural gas. This embedded derivative did not qualify for hedge accounting treatment. Unrealized gains and losses from the embedded derivative were included in Other income, net on the accompanying Statement of Consolidated Operations while realized gains and losses were included in Cost of goods sold on the accompanying Statement of Consolidated Operations as gas purchases were made under the contract.

In the second quarter of 2016, Alcoa and the related counterparty elected to modify the pricing of an existing power contract for a smelter in the United States. This amendment contains an embedded derivative that now indexes the price of power to the LME price of aluminum plus the Midwest premium. The embedded derivative is valued using the interrelationship of future metal prices (LME base plus Midwest premium) and the amount of megawatt hours of energy needed to produce the forecasted metric tons of aluminum at the smelter. Significant increases or decreases in the metal price would result in a higher or lower fair value measurement. An increase in actual metal price over the inputs used in the valuation model will result in a higher cost of power and a corresponding increase to the derivative liability. Management elected not to qualify the embedded derivative for hedge accounting treatment. Unrealized gains and losses from the embedded derivative will be included in Other income, net on the accompanying Statement of Consolidated Operations while realized gains and losses will be included in Cost of goods sold on the accompanying Statement of Consolidated Operations as electricity purchases are made under the contract. At the time this derivative liability was recognized, an equivalent amount was recognized as a deferred charge in Other noncurrent assets on the accompanying Consolidated Balance Sheet. This deferred charge will be recognized in Other income, net on the accompanying Statement of Consolidated Operations as power is received over the life of the contract.

Furthermore, Alcoa has a power contract, which contains an embedded derivative that indexes the difference between the long-term debt ratings of Alcoa and the counterparty from any of the three major credit rating agencies. Management uses market prices,

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historical relationships, and forecast services to determine fair value. Significant increases or decreases in any of these inputs would result in a lower or higher fair value measurement. A wider credit spread between Alcoa and the counterparty would result in a higher cost of power and a corresponding increase in the derivative liability. This embedded derivative did not qualify for hedge accounting treatment. Unrealized gains and losses were included in Other income, net on the accompanying Statement of Consolidated Operations while realized gains and losses were included in Cost of goods sold on the accompanying Statement of Consolidated Operations as electricity purchases were made under the contract.

Finally, Alcoa has a derivative contract that will hedge the anticipated power requirements at one of its smelters once the existing power contract expires in September 2016 (see above). Beyond the term where market information is available, management has developed a forward curve, for valuation purposes, based on independent consultant market research. Significant increases or decreases in the power market may result in a higher or lower fair value measurement. Lower prices in the power market would cause a decrease in the derivative asset. The derivative contract has been designated as a cash flow hedge of future purchases of electricity. Unrealized gains and losses on this contract were recorded in Other comprehensive (loss) income on the accompanying Consolidated Balance Sheet. Once the designated hedge period begins in September 2016, realized gains and losses will be recorded in Cost of goods sold as electricity purchases are made under the power contract.

The following table presents quantitative information related to the significant unobservable inputs described above for Level 3 derivative contracts:

	Fair value at June 30, 2016*		Unobservable input	Range ($ in full amounts)
Assets:
Embedded aluminum derivatives	$	718	Price of aluminum beyond forward curve	Aluminum: $2,093 per metric ton in 2026 to $2,245 per metric ton in 2029 (two contracts) and $2,540 per metric ton in 2036 (one contract) Midwest premium: $0.0775 per pound in 2021 to $0.0775 per pound in 2029 (two contracts) and 2036 (one contract)
Embedded aluminum derivative		23	Interrelationship of future aluminum prices, foreign currency exchange rates, and the U.S. consumer price index (CPI)	Aluminum: $1,631 per metric ton in July 2016 to $1,637 per metric ton in September 2016 Foreign currency: A$1 = $0.74 in 2016 (July through September) CPI: 1982 base year of 100 and 236 in 2016 (July through September)
Embedded aluminum derivative		4	Interrelationship of LME price to overall energy price	Aluminum: $1,614 per metric ton in 2016 to $1,755 per metric ton in 2019
Embedded aluminum derivative		—	Interrelationship of future aluminum and oil prices	Aluminum: $1,631 per metric ton in 2016 to $1,710 per metric ton in 2018 Oil: $49 per barrel in 2016 to $55 per barrel in 2018
Energy contract		40	Price of electricity beyond forward curve	Electricity: $48 per megawatt hour in 2019 to $116 per megawatt hour in 2036
Liabilities:
Embedded aluminum derivative		196	Price of aluminum beyond forward curve	Aluminum: $2,093 per metric ton in 2026 to $2,137 per metric ton in 2027
Embedded aluminum derivative		32	Interrelationship of LME price to the amount of megawatt hours of energy needed to produce the forecasted metric tons of aluminum	Aluminum: $1,631 per metric ton in 2016 to $1,729 per metric ton in 2019 Midwest premium: $0.0725 per pound in 2016 to $0.0775 per pound in 2019 Electricity: rate of 2 million megawatt hours per year
Embedded credit derivative		33	Credit spread between Alcoa and counterparty	3.45% to 3.81% (3.63% median)

* The fair value of the energy contract reflected as an asset in this table is lower by $9 compared to the respective amount reflected in the Level 3 tables presented below. This is due to the fact that this contract is in a liability position for the current portion but is in an asset position for the noncurrent portion, and is reflected as such on the accompanying Consolidated Balance Sheet. However, this derivative is reflected as a net asset in the above table for purposes of presenting the assumptions utilized to measure the fair value of the derivative instrument in its entirety.

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The fair values of Level 3 derivative instruments recorded as assets and liabilities in the accompanying Consolidated Balance Sheet were as follows:

	June 30, 2016		December 31, 2015
Asset Derivatives
Derivatives designated as hedging instruments:
Prepaid expenses and other current assets:
Embedded aluminum derivatives	$	51	$	72
Other noncurrent assets:
Embedded aluminum derivatives		671		994
Energy contract		49		2
Total derivatives designated as hedging instruments	$	771	$	1,068
Derivatives not designated as hedging instruments:
Prepaid expenses and other current assets:
Embedded aluminum derivatives	$	23	$	69
Total derivatives not designated as hedging instruments	$	23	$	69
Total Asset Derivatives	$	794	$	1,137
Liability Derivatives
Derivatives designated as hedging instruments:
Other current liabilities:
Embedded aluminum derivative	$	14	$	9
Energy contract		9		4
Other noncurrent liabilities and deferred credits:
Embedded aluminum derivative		182		160
Total derivatives designated as hedging instruments	$	205	$	173
Derivatives not designated as hedging instruments:
Other current liabilities:
Embedded aluminum derivative	$	8	$	—
Embedded credit derivative		5		6
Other noncurrent liabilities and deferred credits:
Embedded aluminum derivative		24		—
Embedded credit derivative		28		29
Total derivatives not designated as hedging instruments	$	65	$	35
Total Liability Derivatives	$	270	$	208

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The following tables present a reconciliation of activity for Level 3 derivative contracts:

	Assets					Liabilities
Second quarter ended June 30, 2016	Embedded aluminum derivatives			Energy contract		Embedded aluminum derivative			Embedded credit derivative			Energy contract
Opening balance – April 1, 2016	$	988		$	6	$	161		$	33		$	11
Total gains or losses (realized and unrealized) included in:
Sales		(3	)		—		(3	)		—			—
Cost of goods sold		(30	)		—		—			(2	)		—
Other income, net		(4	)		—		—			2			—
Other comprehensive loss		(215	)		37		38			—			(8	)
Purchases, sales, issuances, and settlements*		—			—		32			—			—
Transfers into and/or out of Level 3*		—			—		—			—			—
Other		9			6		—			—			6
Closing balance – June 30, 2016	$	745		$	49	$	228		$	33		$	9
Change in unrealized gains or losses included in earnings for derivative contracts held at June 30, 2016:
Sales	$	—		$	—	$	—		$	—		$	—
Cost of goods sold		—			—		—			—			—
Other income, net		(4	)		—		—			2			—

* In the 2016 second quarter, there was an issuance of a new embedded derivative contained in an amendment to an existing power contract. There were no purchases, sales or settlements of Level 3 derivative instruments. Additionally, there were no transfers of derivative instruments into or out of Level 3.

	Assets					Liabilities
Six months ended June 30, 2016	Embedded aluminum derivatives			Energy contract		Embedded aluminum derivative			Embedded credit derivative			Energy contract
Opening balance – January 1, 2016	$	1,135		$	2	$	169		$	35		$	4
Total gains or losses (realized and unrealized) included in:
Sales		(10	)		—		(5	)		—			—
Cost of goods sold		(61	)		—		—			(3	)		—
Other income, net		(8	)		2		—			1			(1	)
Other comprehensive income		(336	)		39		32			—			—
Purchases, sales, issuances, and settlements*		—			—		32			—			—
Transfers into and/or out of Level 3*		—			—		—			—			—
Other		25			6		—			—			6
Closing balance – June 30, 2016	$	745		$	49	$	228		$	33		$	9
Change in unrealized gains or losses included in earnings for derivative contracts held at June 30, 2016:
Sales	$	—		$	—	$	—		$	—		$	—
Cost of goods sold		—			—		—			—			—
Other income, net		(8	)		2		—			1			(1	)

* In the 2016 six-month period, there was an issuance of a new embedded derivative contained in an amendment to an existing power contract. There were no purchases, sales or settlements of Level 3 derivative instruments. Additionally, there were no transfers of derivative instruments into or out of Level 3.

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Derivatives Designated As Hedging Instruments – Cash Flow Hedges

For derivative instruments that are designated and qualify as cash flow hedges, the effective portion of unrealized gains or losses on the derivative is reported as a component of other comprehensive income (OCI). Realized gains or losses on the derivative are reclassified from OCI into earnings in the same period or periods during which the hedged transaction impacts earnings. Gains and losses on the derivative representing either hedge ineffectiveness or hedge components excluded from the assessment of effectiveness are recognized directly in earnings immediately.

Alcoa has five Level 3 embedded aluminum derivatives and one Level 3 energy contract that have been designated as cash flow hedges as follows.

Embedded aluminum derivatives. Alcoa has entered into energy supply contracts that contain pricing provisions related to the LME aluminum price. The LME-linked pricing features are considered embedded derivatives. Five of these embedded derivatives have been designated as cash flow hedges of forward sales of aluminum. At June 30, 2016 and December 31, 2015, these embedded aluminum derivatives hedge forecasted aluminum sales of 3,261 kmt and 3,307 kmt, respectively.

Alcoa recognized a net unrealized loss of $253 and $368 in the 2016 second quarter and six-month period, respectively, and a net unrealized gain of $616 and $518 in the 2015 second quarter and six-month period, respectively, in Other comprehensive (loss) income related to these five derivative instruments. Additionally, Alcoa reclassified a realized gain of less than $1 and $5 in the 2016 second quarter and six-month period, respectively, and a realized loss of $12 and $24 in the 2015 second quarter and six-month period, respectively, from Accumulated other comprehensive loss to Sales. Assuming market rates remain constant with the rates at June 30, 2016, a realized gain of $25 is expected to be recognized in Sales over the next 12 months.

Also, Alcoa recognized a gain of less than $1 in the 2016 six-month period (no such gain was recognized in the 2016 second quarter) and a gain of less than $1 and $1 in the 2015 second quarter and six-month period, respectively, in Other income, net related to the amount excluded from the assessment of hedge effectiveness. There was no ineffectiveness related to these five derivative instruments in the 2016 second quarter and six-month period and the 2015 second quarter and six-month period.

Energy contract. Alcoa has a derivative contract that will hedge the anticipated power requirements at one of its smelters once the existing power contract expires in September 2016. At June 30, 2016 and December 31, 2015, this energy contract hedges forecasted electricity purchases of 59,409,328 megawatt hours. Alcoa recognized an unrealized gain of $45 and $39 in the 2016 second quarter and six-month period, respectively, and an unrealized loss of $17 and $11 in the 2015 second quarter and six-month period, respectively, in Other comprehensive (loss) income. Additionally, Alcoa recognized a gain of $3 in Other income, net related to hedge ineffectiveness in the 2016 six-month period. There was no ineffectiveness related to the energy contract in the 2016 second quarter and the 2015 second quarter and six-month period.

Derivatives Not Designated As Hedging Instruments

Alcoa has three Level 3 embedded aluminum derivatives and one Level 3 embedded credit derivative that do not qualify for hedge accounting treatment. As such, gains and losses related to the changes in fair value of these instruments are recorded directly in earnings. In the second quarter of 2016 and 2015, Alcoa recognized a loss of $6 and $5, respectively, in Other income, net, of which a loss of $4 and $2, respectively, related to the embedded aluminum derivatives and a loss of $2 and $3, respectively, related to the embedded credit derivative. In the six-month period of 2016 and 2015, Alcoa recognized a loss of $9 and $2, respectively, in Other income, net, of which a loss of $8 and $1, respectively, related to the embedded aluminum derivatives and a loss of $1 and $1, respectively, related to the embedded credit derivative.

Material Limitations

The disclosures with respect to commodity prices, interest rates, and foreign currency exchange risk do not take into account the underlying commitments or anticipated transactions. If the underlying items were included in the analysis, the gains or losses on the futures contracts may be offset. Actual results will be determined by a number of factors that are not under Alcoa’s control and could vary significantly from those factors disclosed.

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Alcoa is exposed to credit loss in the event of nonperformance by counterparties on the above instruments, as well as credit or performance risk with respect to its hedged customers’ commitments. Although nonperformance is possible, Alcoa does not anticipate nonperformance by any of these parties. Contracts are with creditworthy counterparties and are further supported by cash, treasury bills, or irrevocable letters of credit issued by carefully chosen banks. In addition, various master netting arrangements are in place with counterparties to facilitate settlement of gains and losses on these contracts.

Other Financial Instruments

The carrying values and fair values of Alcoa’s other financial instruments were as follows:

	June 30, 2016				December 31, 2015
	Carrying value		Fair value		Carrying value		Fair value
Cash and cash equivalents	$	1,929	$	1,929	$	1,919	$	1,919
Restricted cash		30		30		37		37
Noncurrent receivables		19		19		17		17
Available-for-sale securities		68		68		193		193
Short-term borrowings		33		33		38		38
Commercial paper		—		—		—		—
Long-term debt due within one year		774		791		21		21
Contingent payment related to an acquisition		132		132		130		130
Long-term debt, less amount due within one year		8,278		8,670		8,993		8,922

The following methods were used to estimate the fair values of other financial instruments:

Cash and cash equivalents, Restricted cash, Short-term borrowings, and Commercial paper. The carrying amounts approximate fair value because of the short maturity of the instruments. The fair value amounts for Cash and cash equivalents, Restricted cash, and Commercial paper were classified in Level 1, and Short-term borrowings were classified in Level 2.

Noncurrent receivables. The fair value of noncurrent receivables was based on anticipated cash flows, which approximates carrying value, and was classified in Level 2 of the fair value hierarchy.

Available-for-sale securities. The fair value of such securities was based on quoted market prices. These financial instruments consist of exchange-traded fixed income and equity securities, which are carried at fair value and were classified in Level 1 of the fair value hierarchy.

Contingent payment related to an acquisition. The fair value was based on the net present value of expected future cash flows and was classified in Level 3 of the fair value hierarchy.

Long-term debt due within one year and Long-term debt, less amount due within one year. The fair value was based on quoted market prices for public debt and on interest rates that are currently available to Alcoa for issuance of debt with similar terms and maturities for non-public debt. The fair value amounts for all Long-term debt were classified in Level 2 of the fair value hierarchy.

P. Proposed Separation Transaction – On September 28, 2015, Alcoa announced that its Board of Directors preliminarily approved a plan to separate into two standalone, publicly-traded companies. One company will be named Alcoa Corporation and will include the Alumina and Primary Metals segments and the Warrick, IN rolling operations and the equity interest in the rolling mill at the joint venture in Saudi Arabia, both of which are currently part of the Global Rolled Products segment. Alcoa, which will be re-named Arconic Inc., will continue to own the Global Rolled Products (except for the aforementioned rolling operations to be included in the future Alcoa Corporation company), Engineered Products and Solutions, and Transportation and Construction Solutions segments.

Alcoa is targeting to complete the separation in the second half of 2016. The transaction is subject to a number of conditions, including, but not limited to, final approval by Alcoa’s Board of Directors; receipt of a private letter ruling from the Internal Revenue Service regarding certain U.S. federal income tax matters relating to the transaction; receipt of an opinion of legal counsel with respect to the tax-free nature of the transaction for U.S. federal income tax purposes; and the effectiveness of a Form 10 registration statement, which was filed with the U.S. Securities and Exchange Commission on June 29, 2016. Upon completion of the

32

separation, Alcoa shareholders will own all of the outstanding shares of the future Arconic Inc. company, and each Alcoa shareholder as of the separation record date will own a pro rata share of the outstanding shares of the future Alcoa Corporation company to be distributed (up to 19.9% of such shares may be retained by the future Arconic Inc. company). Alcoa may, at any time and for any reason until the proposed transaction is complete, abandon the separation plan or modify or change its terms. In the 2016 second quarter and six-month period, Alcoa recognized $45 ($37 after-tax) and $63 ($54 after-tax), respectively, in Selling, general administrative, and other expenses on the accompanying Statement of Consolidated Operations for costs related to the proposed separation transaction.

Q. Subsequent Events – Management evaluated all activity of Alcoa and concluded that no subsequent events have occurred that would require recognition in the Consolidated Financial Statements or disclosure in the Notes to the Consolidated Financial Statements, except as described below.

On July 21, 2016, Alcoa’s Board of Directors authorized both a reverse stock split of the Company’s common stock at a ratio of one-for-three and a proportionate reduction in the number of authorized shares of Alcoa’s common stock from 1.8 billion to 600 million. Alcoa will hold a special shareholder meeting on October 5, 2016 to seek approval of the reverse stock split and authorized share count reduction, both of which require an affirmative vote of a majority of votes cast by the shareholders entitled to vote. Alcoa is not planning to issue fractional shares as a result of the reverse stock split; therefore, cash payments in lieu of such fractional shares would be made to shareholders, as applicable. The reverse stock split would not change the proportionate equity interests or voting rights of holders of Alcoa’s common stock, subject to the treatment of fractional shares. As of July 22, 2016, 1,315,374,511 shares of Alcoa’s common stock were outstanding.

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Report of Independent Registered Public Accounting Firm*

To the Shareholders and Board of Directors of Alcoa Inc.

We have reviewed the accompanying consolidated balance sheet of Alcoa Inc. and its subsidiaries (Alcoa) as of June 30, 2016, and the related statements of consolidated operations, consolidated comprehensive income (loss), and changes in consolidated equity for the three-month and six-month periods ended June 30, 2016 and 2015 and the statement of consolidated cash flows for the six-month periods ended June 30, 2016 and 2015. These consolidated interim financial statements are the responsibility of Alcoa’s management.

We conducted our review in accordance with the standards of the Public Company Accounting Oversight Board (United States). A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the Public Company Accounting Oversight Board (United States), the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

Based on our review, we are not aware of any material modifications that should be made to the accompanying consolidated interim financial statements for them to be in conformity with accounting principles generally accepted in the United States of America.

We previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheet as of December 31, 2015, and the related statements of consolidated operations, consolidated comprehensive loss, changes in consolidated equity, and consolidated cash flows for the year then ended (not presented herein), and in our report dated February 19, 2016, which included a paragraph that described the change in classification of current deferred income tax assets and liabilities in the consolidated balance sheet at December 31, 2015 and 2014, we expressed an unqualified opinion on those consolidated financial statements. As discussed in Note B to the accompanying consolidated interim financial statements, the Company changed the classification of debt issuance costs in the consolidated balance sheet. The accompanying December 31, 2015 consolidated balance sheet reflects this change.

/s/ PricewaterhouseCoopers LLP                    

PricewaterhouseCoopers LLP

Pittsburgh, Pennsylvania

July 29, 2016

* This report should not be considered a “report” within the meanings of Sections 7 and 11 of the Securities Act of 1933, and the independent registered public accounting firm’s liability under Section 11 does not extend to it.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

(dollars in millions, except per share amounts and ingot prices; production and shipments in thousands of metric tons [kmt])

On September 28, 2015, Alcoa announced that its Board of Directors preliminarily approved a plan to separate into two standalone, publicly-traded companies. One company will be named Alcoa Corporation and will include the Alumina and Primary Metals segments and the Warrick, IN rolling operations and the equity interest in the rolling mill at the joint venture in Saudi Arabia, both of which are currently part of the Global Rolled Products segment. Alcoa, which will be re-named Arconic Inc. and will continue to own the Global Rolled Products (except for the aforementioned rolling operations to be included in the future Alcoa Corporation company), Engineered Products and Solutions, and Transportation and Construction Solutions segments.

Alcoa is targeting to complete the separation in the second half of 2016. The transaction is subject to a number of conditions, including, but not limited to, final approval by Alcoa’s Board of Directors; receipt of a private letter ruling from the Internal Revenue Service regarding certain U.S. federal income tax matters relating to the transaction; receipt of an opinion of legal counsel with respect to the tax-free nature of the transaction for U.S. federal income tax purposes; and the effectiveness of a Form 10 registration statement, which was filed with the U.S. Securities and Exchange Commission on June 29, 2016. Upon completion of the separation, Alcoa shareholders will own all of the outstanding shares of the future Arconic Inc. company, and each Alcoa shareholder as of the separation record date will own a pro rata share of the outstanding shares of the future Alcoa Corporation company to be distributed (up to 19.9% of such shares may be retained by the future Arconic Inc. company). Alcoa may, at any time and for any reason until the proposed transaction is complete, abandon the separation plan or modify or change its terms.

Results of Operations

Selected Financial Data:

	Second quarter ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Sales	$	5,295	$	5,897	$	10,242	$	11,716
Net income attributable to Alcoa	$	135	$	140	$	151	$	335
Diluted earnings per share attributable to Alcoa common shareholders	$	0.09	$	0.10	$	0.09	$	0.24
Shipments of alumina (kmt)		2,266		2,706		4,434		5,244
Shipments of aluminum products (kmt)		1,117		1,165		2,192		2,256
Alcoa’s average realized price per metric ton of primary aluminum	$	1,849	$	2,180	$	1,821	$	2,296

Net income attributable to Alcoa was $135, or $0.09 per diluted share, in the 2016 second quarter compared with $140, or $0.10 per share, in the 2015 second quarter, and $151, or $0.09 per share, in the 2016 six-month period compared with $335, or $0.24 per share, in the 2015 six-month period. The decrease in results of $5 in the 2016 second quarter and $184 in the 2016 six-month period was principally related to lower pricing in all operations and costs related to the planned separation of Alcoa. These negative impacts were mostly offset in the 2016 second quarter and partially offset in the 2016 six-month period by net productivity improvements and lower restructuring-related charges.

Sales declined $602, or 10%, in the 2016 second quarter and $1,474, or 13%, in the 2016 six-month period compared to the same periods in 2015. In both periods, the decrease was largely attributable to a lower average realized price for aluminum and alumina in the upstream operations; unfavorable pricing in the midstream and downstream operations; lower volume in the upstream operations; the absence of sales related to capacity that was closed or curtailed in the upstream operations (see Primary Metals in Segment Information below); and lower energy sales. These negative impacts were somewhat offset by the addition of sales from recently acquired businesses (see Engineered Products and Solutions in Segment Information below), higher bauxite sales, and higher volume in the midstream operations. Additionally, unfavorable product mix in the midstream operations contributed to the decline in the 2016 second quarter.

Cost of goods sold (COGS) as a percentage of Sales was 79.6% in the 2016 second quarter and 80.6% in the 2016 six-month period compared with 79.1% in the 2015 second quarter and 77.7% in the 2015 six-month period. The percentage was negatively

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impacted in both periods by a lower average realized price for aluminum and alumina in the upstream operations and unfavorable pricing in the midstream and downstream operations, mostly offset in the 2016 second quarter and partially offset in the 2016 six-month period by net productivity improvements across all segments.

Selling, general administrative, and other expenses (SG&A) increased $62 and $90 in the 2016 second quarter and six-month period, respectively, compared to the corresponding periods in 2015. In both periods, the increase was principally due to costs related to the planned separation of Alcoa ($45 – second quarter and $63 – six months) (see above) and new SG&A related to inorganic growth in the Engineered Products and Solutions segment ($17 – second quarter and $36 – six months). The negative impacts in the 2016 six-month period were slightly offset by a decrease in various expenses. SG&A as a percentage of Sales increased from 3.8% in the 2015 second quarter to 5.4% in the 2016 second quarter, and from 3.9% in the 2015 six-month period to 5.3% in the 2016 six-month period.

Research and development expenses (R&D) declined $29, or 43%, in the 2016 second quarter and $42, or 34%, in the 2016 six-month period compared with the same periods in 2015. The decrease in both periods was primarily driven by lower spending related to both the upgrade of a Micromill™ in San Antonio, TX, which was completed in 2015, for the Global Rolled Products segment and inert anode and carbothermic technology for the Primary Metals segment.

Provision for depreciation, depletion, and amortization (DD&A) declined $10, or 3%, in the 2016 second quarter and $22, or 3%, in the 2016 six-month period compared to the corresponding periods in 2015. In both periods, the decrease was mostly the result of favorable foreign currency movements due to a stronger U.S. dollar, particularly against the Brazilian real and Australian dollar, and the absence of or lower DD&A related to capacity reductions in the upstream operations that occurred in June 2015 through March 2016. These positive impacts were mostly offset by new DD&A associated with the July 2015 acquisition of RTI International Metals.

Restructuring and other charges were $23 ($16 after-tax and noncontrolling interest) and $116 ($77 after-tax and noncontrolling interest) in the 2016 second quarter and six-month period, respectively.

In the 2016 second quarter, Restructuring and other charges included $15 ($11 after-tax and noncontrolling interest) for layoff costs related to cost reduction initiatives and the planned separation of Alcoa (see above), including the separation of approximately 540 employees (300 in the Engineered Products and Solutions segment and 240 in the Transportation and Construction Solutions segment); $8 ($6 after-tax and noncontrolling interest) for additional net costs related to decisions made in the fourth quarter of 2015 to permanently close and demolish the Warrick (Indiana) smelter and to curtail the Wenatchee (Washington) smelter and Point Comfort (Texas) refinery (see below); a net charge of $8 ($4 after-tax and noncontrolling interest) for other miscellaneous items; and $8 ($5 after-tax and noncontrolling interest) for the reversal of a number of small layoff reserves related to prior periods.

In the 2016 six-month period, Restructuring and other charges included $86 ($56 after-tax and noncontrolling interest) for additional net costs related to decisions made in the fourth quarter of 2015 to permanently close and demolish the Warrick (Indiana) smelter and to curtail the Wenatchee (Washington) smelter and Point Comfort (Texas) refinery (see below); $34 ($25 after-tax and noncontrolling interest) for layoff costs related to cost reduction initiatives and the planned separation of Alcoa (see above), including the separation of approximately 1,100 employees (800 in the Engineered Products and Solutions segment, 240 in the Transportation and Construction Solutions segment, and 30 each in the Primary Metals and Global Rolled Products segments); a net charge of $8 ($4 after-tax and noncontrolling interest) for other miscellaneous items; and $12 ($8 after-tax and noncontrolling interest) for the reversal of a number of small layoff reserves related to prior periods.

In the 2016 six-month period, costs related to the closure and curtailment actions included accelerated depreciation of $70 related to the Warrick smelter as it continued to operate during the 2016 first quarter; $20 ($1 in the 2016 second quarter) for the reversal of severance costs initially recorded in the 2015 fourth quarter; and $36 ($9 in the 2016 second quarter) in other costs. Additionally in the 2016 six-month period, remaining inventories, mostly operating supplies and raw materials, were written down to their net realizable value, resulting in a charge of $5 ($3 after-tax and noncontrolling interest) ($2 ($1 after-tax and noncontrolling interest) in the 2016 second quarter), which was recorded in COGS. The other costs of $36 ($9 in the 2016 second quarter) represent $27 ($10 in the 2016 second quarter) for contract termination, $7 in asset retirement obligations for the rehabilitation of a coal mine related to the Warrick smelter, and $2 ($(1) in the 2016 second quarter) in other related costs. Additional charges may be recognized in future periods related to these actions.

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Restructuring and other charges were $217 ($141 after-tax and noncontrolling interest) and $394 ($299 after-tax and noncontrolling interest) in the 2015 second quarter and six-month period, respectively.

In the 2015 second quarter, Restructuring and other charges included $179 ($115 after-tax and noncontrolling interest) for exit costs related to decisions to permanently shut down and demolish a smelter and a power station (see below); $18 ($10 after-tax and noncontrolling interest) for the separation of approximately 120 employees (Alumina segment) and other charges related to the decisions to temporarily curtail both a portion of the capacity (443 kmt-per-year) at the refinery in Suriname and the remaining capacity (74 kmt-per-year) at the São Luís smelter in Brazil; $16 ($13 after-tax and noncontrolling interest) for layoff costs, including the separation of approximately 390 employees (210 in the Engineered Products and Solutions segment, 150 in the Primary Metals segment, and 30 in the Global Rolled Products segment); $10 ($7 after-tax and noncontrolling interest) related to post-closing adjustments associated with two December 2014 divestitures; a net credit of $5 ($3 after-tax and noncontrolling interest) for other miscellaneous items; and $1 ($1 after-tax and noncontrolling interest) for the reversal of a few layoff reserves related to prior periods.

In the 2015 six-month period, Restructuring and other charges included the aforementioned $179 ($115 after-tax and noncontrolling interest); $159 ($149 after-tax and noncontrolling interest) related to the March 2015 divestiture of a rolling mill in Russia and post-closing adjustments associated with three December 2014 divestitures; $38 ($23 after-tax and noncontrolling interest) for the separation of approximately 800 employees (680 in the Primary Metals segment and 120 in the Alumina segment), supplier contract-related costs, and other charges associated with the aforementioned decisions to temporarily curtail certain capacity at the São Luís smelter and the refinery in Suriname; $29 ($21 after-tax and noncontrolling interest) for layoff costs, including the separation of approximately 600 employees (290 in the Engineered Products and Solutions segment, 150 in the Primary Metals segment, 60 in the Global Rolled Products segment, 50 in the Transportation and Construction Solutions segment, and 50 in Corporate); a net credit of $3 ($2 after-tax and noncontrolling interest) for other miscellaneous items; and $8 ($7 after-tax and noncontrolling interest) for the reversal of a number of small layoff reserves related to prior periods.

In the 2015 second quarter, management approved the permanent shutdown and demolition of the Poços de Caldas smelter (capacity of 96 kmt-per-year) in Brazil and the Anglesea power station (includes the closure of a related coal mine) in Australia. The entire capacity at Poços de Caldas has been temporarily idled since May 2014 and the Anglesea power station was shut down at the end of August 2015. Demolition and remediation activities related to the Poços de Caldas smelter and the Anglesea power station began in late 2015 and are expected to be completed by the end of 2026 and 2020, respectively.

The decision on the Poços de Caldas smelter was due to management’s conclusion that the smelter was no longer competitive as a result of challenging global market conditions for primary aluminum, which led to the initial curtailment, that have not dissipated and higher costs. For the Anglesea power station, the decision was made because a sale process did not result in a sale and there would be imminent operating costs and financial constraints related to this site in the remainder of 2015 and beyond, including significant costs to source coal from available resources, necessary maintenance costs, and a depressed outlook for forward electricity prices. The Anglesea power station previously supplied approximately 40 percent of the power needs for the Point Henry smelter, which was closed in August 2014.

In the 2015 second quarter and six-month period, costs related to the shutdown actions included asset impairments of $86, representing the write-off of the remaining book value of all related properties, plants, and equipment; $11 for the layoff of approximately 100 employees (Primary Metals segment); and $82 in other exit costs. Additionally in the 2015 second quarter and six-month period, remaining inventories, mostly operating supplies and raw materials, were written down to their net realizable value, resulting in a charge of $4 ($2 after-tax and noncontrolling interest), which was recorded in COGS. The other exit costs of $82 represent $45 in asset retirement obligations and $29 in environmental remediation, both of which were triggered by the decisions to permanently shut down and demolish the aforementioned structures in Brazil and Australia (includes the rehabilitation of a related coal mine), and $8 in supplier and customer contract-related costs.

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Alcoa does not include Restructuring and other charges in the results of its reportable segments. The pretax impact of allocating such charges to segment results would have been as follows:

	Second quarter ended June 30,					Six months ended June 30,
	2016			2015		2016			2015
Alumina	$	(1	)	$	10	$	4		$	17
Primary Metals		10			173		88			198
Global Rolled Products		—			1		2			136
Engineered Products and Solutions		9			8		17			11
Transportation and Construction Solutions		8			1		8			3
Segment total		26			193		119			365
Corporate		(3	)		24		(3	)		29
Total restructuring and other charges	$	23		$	217	$	116		$	394

As of June 30, 2016, approximately 730 of the 1,100 employees associated with 2016 restructuring programs, approximately 3,800 of the 5,000 employees (previously 5,200) associated with 2015 restructuring programs, and approximately 2,600 of the 2,700 employees (previously 2,870) associated with 2014 restructuring programs were separated. The total number of employees associated with both 2015 and 2014 restructuring programs was updated to reflect employees, who were initially identified for separation, accepting other positions within Alcoa and natural attrition. Most of the remaining separations for the 2016 restructuring programs and all of the remaining separations for the 2015 and 2014 restructuring programs are expected to be completed by the end of 2016.

In the 2016 second quarter and six-month period, cash payments of $9 and $11, respectively, were made against layoff reserves related to 2016 restructuring programs, $30 and $92, respectively, were made against layoff reserves related to 2015 restructuring programs, and $1 and $3, respectively, were made against layoff reserves related to 2014 restructuring programs.

Interest expense increased $5, or 4%, in the 2016 second quarter and $10, or 4%, in the 2016 six-month period compared to the corresponding periods in 2015. The increase in both periods was mainly due to a lower amount of capitalized interest.

Other income, net was $37 in the 2016 second quarter and $3 in the 2016 six-month period compared with less than $1 in the 2015 second quarter and $12 in the 2015 six-month period, respectively.

The change of $37 in the 2016 second quarter was mainly the result of a gain on the sale of an equity interest in a natural gas pipeline in Australia ($27), net favorable foreign currency movements ($15), a benefit for an arbitration recovery related to a 2010 fire at the Iceland smelter ($14), and a smaller equity loss related to Alcoa’s share of the joint venture in Saudi Arabia. These items were somewhat offset by the absence of a gain on the sale of land around the Lake Charles, LA anode facility ($29).

In the 2016 six-month period, the change of $9 was primarily due to the absence of a gain on the sale of land around the Lake Charles, LA anode facility ($29) and net unfavorable foreign currency movements ($16). These items were mostly offset by a gain on the sale of an equity interest in a natural gas pipeline in Australia ($27) and a benefit for an arbitration recovery related to a 2010 fire at the Iceland smelter ($14).

The effective tax rate was 46.1% and 26.6% for the second quarter of 2016 and 2015, respectively, and 49.1% and 39.4% for the 2016 and 2015 six-month periods, respectively.

Alcoa’s estimated annual effective tax rate for 2016 was 51.6% as of June 30, 2016. This rate differs from the U.S. federal statutory rate of 35% primarily due to the tax cost associated with the redemption of $457 in company-owned life insurance policies, which generated a gain for income tax purposes as the tax basis of these policies was less than the redemption amount, and an unfavorable impact associated with costs (including $39 of the $63 incurred in the 2016 six-month period plus an additional forecast of such costs for the remainder of the year) related to the planned separation of Alcoa (see above) that are nondeductible for income tax purposes, somewhat offset by foreign income taxed in lower rate jurisdictions.

For the 2016 six-month period, the Provision for income taxes is composed of three components as follows: (i) the application of the estimated annual effective tax rate for 2016 of 51.6% to pretax income of $371, (ii) a net discrete income tax benefit of $1 for a number of small items, and (iii) a favorable impact of $9 related to the interim period treatment of operational losses in certain foreign jurisdictions for which no tax benefit was recognized (expected to reverse by the end of 2016).

For the 2016 second quarter, the Provision for income taxes is composed of three components as follows: (i) the difference between the application of the estimated annual 2016 effective tax rate as of June 30, 2016 of 51.6% to pretax income for the 2016 six-month period of $371 and the application of the estimated annual 2016 effective tax rate as of March 31, 2016 of 59.5% to pretax income for the 2016 three-month period of $41, (ii) a discrete income tax benefit of $5 for one item, and (iii) a favorable impact of $11 related to the interim period treatment of operational losses in certain foreign jurisdictions for which no tax benefit was recognized (expected to reverse by the end of 2016).

Alcoa’s estimated annual effective tax rate for 2015 was 33.9% as of June 30, 2015. This rate differs from the U.S. federal statutory rate of 35% primarily due to foreign income taxed in lower rate jurisdictions, mostly offset by a loss on the sale of a rolling mill in Russia for which no tax benefit was recognized.

For the 2015 six-month period, the Provision for income taxes is composed of three components as follows: (i) the application of the estimated annual effective tax rate for 2015 of 33.9% to pretax income of $763, (ii) a net discrete income tax charge of $34 (see below) and a net discrete income tax benefit of $5 for a number of small items, and (iii) an unfavorable impact of $14 related to the interim period treatment of operational losses in certain foreign jurisdictions for which no tax benefit was recognized (impact reversed by the end of 2015).

For the 2015 second quarter, the Provision for income taxes is composed of three components as follows: (i) the difference between the application of the estimated annual 2015 effective tax rate as of June 30, 2015 of 33.9% to pretax income for the 2015 six-month period of $763 and the application of the estimated annual 2015 effective tax rate as of March 31, 2015 of 32.8% to pretax income for the 2015 three-month period of $481, (ii) a net discrete income tax benefit of $4 for a number of small items, and (iii) a favorable impact of $21 related to the interim period treatment of operational losses in certain foreign jurisdictions for which no tax benefit was recognized (impact reversed by the end of 2015).

In the first quarter of 2015, Alcoa World Alumina and Chemicals (AWAC – see Net income attributable to noncontrolling interests below for a description) recognized an $83 discrete income tax charge (increased to $85 in the 2015 second quarter) for a valuation allowance on certain deferred tax assets in Suriname, which were related mostly to employee benefits and tax loss carryforwards. Alcoa also had a $50 deferred tax liability (increased to $51 in the 2015 second quarter) related to its 60%-share of these deferred tax assets that was written off as a result of the valuation allowance recognized by AWAC.

Net income attributable to noncontrolling interests was $43 in the 2016 second quarter and $38 in the 2016 six-month period compared with $67 in the 2015 second quarter and $127 in the 2015 six-month period. These amounts were virtually all related to Alumina Limited of Australia’s ownership interest in AWAC, which is an unincorporated joint venture that consists of a group of companies, all of which are owned 60% by Alcoa and 40% by Alumina Limited of Australia (Alcoa consolidates AWAC for financial reporting purposes). In the 2016 second quarter and six-month period, AWAC generated lower income compared to the same periods in 2015.

In both periods, the change in AWAC’s results was mainly driven by a decline in operating results (see below), partially offset by the absence of restructuring charges related to the permanent closure of the Anglesea power station and coal mine (see Restructuring and other charges above) and a $27 ($8 was noncontrolling interest’s share) gain on the sale of an equity interest in a natural gas pipeline in Australia, and, in the 2016 six-month period only, the absence of an $85 ($34 was noncontrolling interest’s share) discrete income tax charge for a valuation allowance on certain deferred tax assets (see Income taxes above).

The decrease in AWAC’s operating results in both periods was largely due to a lower average realized alumina price and an unfavorable impact related to the curtailment of the Point Comfort refinery, somewhat offset by net productivity improvements and net favorable foreign currency movements (see Alumina in Segment Information below).

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Segment Information

Alumina

	Second quarter ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Alumina production (kmt)		3,316		3,977		6,646		7,910
Third-party alumina shipments (kmt)		2,266		2,706		4,434		5,244
Alcoa’s average realized price per metric ton of alumina	$	304	$	337	$	277	$	341
Alcoa’s average cost per metric ton of alumina*	$	235	$	246	$	229	$	248
Third-party sales	$	694	$	924	$	1,239	$	1,811
Intersegment sales		300		431		592		932
Total sales	$	994	$	1,355	$	1,831	$	2,743
ATOI	$	109	$	215	$	117	$	436

* Includes all production-related costs, including raw materials consumed; conversion costs, such as labor, materials, and utilities; depreciation, depletion, and amortization; and plant administrative expenses.

Alumina production decreased 17% in the 2016 second quarter and 16% in the 2016 six-month period compared with the corresponding periods in 2015. In both periods, the decline was largely attributable to lower production at the Point Comfort (Texas) refinery (see below) and the absence of production at the Suralco (Suriname) refinery (see below).

In March 2015, management initiated a 12-month review of 2,800 kmt in refining capacity for possible curtailment (partial or full), permanent closure or divestiture. This review was part of management’s target to lower Alcoa’s refining operations on the global alumina cost curve to the 21st percentile (currently 23rd) by the end of 2016. As part of this review, in 2015, management decided to curtail the remaining operating capacity at both the Suralco (1,330 kmt-per-year) and Point Comfort (2,010 kmt-per-year) refineries. The curtailment of the capacity at Suralco and Point Comfort was completed by the end of November 2015 and June 2016 (375 kmt-per-year was completed by the end of December 2015), respectively. While management has completed this specific review of Alcoa’s refining capacity, analysis of portfolio optimization in light of changes in the marketplace that may occur at any given time is ongoing.

Third-party sales for the Alumina segment decreased 25% and 32% in the 2016 second quarter and six-month period, respectively, compared to the same periods in 2015. The decline in both periods was primarily due to a 10% (second quarter) and 19% (six months) decrease in average realized price and a 16% (second quarter) and 15% (six months) decline in volume, slightly offset by an increase in bauxite sales. In both periods, the change in average realized price was mostly driven by a drop in the average alumina index price.

Intersegment sales decreased 30% in the 2016 second quarter and 36% in the 2016 six-month period compared with the corresponding periods in 2015 due to a lower average realized price and lower demand from the Primary Metals segment. The lower demand in both periods was caused by the absence of (second quarter) and lower (six months) shipments to the Warrick (Indiana) smelter (closed in the first quarter of 2016) and the absence of shipments to both the Wenatchee (Washington) smelter (curtailed in the fourth quarter of 2015) and the São Luís (Brazil) smelter (curtailed in the second quarter of 2015).

ATOI for this segment declined $106 and $319 in the 2016 second quarter and six-month period, respectively, compared to the same periods in 2015. In both periods, the decrease was principally related to the previously mentioned lower average realized alumina price and an unfavorable impact related to the curtailment of the Point Comfort refinery. These negative impacts were somewhat offset by net productivity improvements and net favorable foreign currency movements due to a stronger U.S. dollar, especially against the Australian dollar and Brazilian real.

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In the 2016 third quarter (comparison with the 2015 third quarter), alumina production will reflect the absence of approximately 680 kmt due to the curtailment of the Point Comfort and Suralco refineries. Additionally, net productivity improvements are anticipated in this segment.

Primary Metals

	Second quarter ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Aluminum production (kmt)		595		701		1,250		1,412
Third-party aluminum shipments (kmt)		565		630		1,140		1,219
Alcoa’s average realized price per metric ton of aluminum*	$	1,849	$	2,180	$	1,821	$	2,296
Alcoa’s average cost per metric ton of aluminum**	$	1,793	$	2,169	$	1,798	$	2,192
Third-party sales	$	1,119	$	1,534	$	2,242	$	3,106
Intersegment sales		473		562		948		1,254
Total sales	$	1,592	$	2,096	$	3,190	$	4,360
ATOI	$	41	$	67	$	55	$	254

* Average realized price per metric ton of aluminum includes three elements: a) the underlying base metal component, based on quoted prices from the LME; b) the regional premium, which represents the incremental price over the base LME component that is associated with the physical delivery of metal to a particular region (e.g., the Midwest premium for metal sold in the United States); and c) the product premium, which represents the incremental price for receiving physical metal in a particular shape (e.g., billet, slab, rod, etc.) or alloy.

** Includes all production-related costs, including raw materials consumed; conversion costs, such as labor, materials, and utilities; depreciation and amortization; and plant administrative expenses.

At June 30, 2016, Alcoa had 778 kmt of idle capacity on a base capacity of 3,133 kmt. Both idle capacity and base capacity were unchanged compared to March 31, 2016.

In March 2015, management initiated a 12-month review of 500 kmt in smelting capacity for possible curtailment (partial or full), permanent closure or divestiture. This review was part of management’s target to lower Alcoa’s smelting operations on the global aluminum cost curve to the 38th percentile (currently 43rd) by the end of 2016. As part of this review, in 2015, management decided to curtail the remaining operating capacity at both the São Luís smelter (74 kmt-per-year) in Brazil and at the Wenatchee smelter (143 kmt-per-year) in Washington and to permanently close the Warrick smelter (269 kmt-per-year) in Indiana. The curtailment of capacity at São Luís and Wenatchee was completed in April 2015 and by the end of December 2015, respectively, and the permanent closure of Warrick was completed by the end of March 2016. Previously under this review (November 2015), management decided to curtail the remaining capacity at the Intalco smelter in Washington by the end of June 2016; however, in May 2016, Alcoa reached agreement on a new power contract that will help improve the competiveness of the smelter, resulting in the termination of the planned curtailment. While management has completed this specific review of Alcoa’s smelting capacity, analysis of portfolio optimization in light of changes in the marketplace that may occur at any given time is ongoing.

Aluminum production decreased 15% and 11% in the 2016 second quarter and six-month period, respectively, compared with the corresponding periods in 2015. In both periods, the decline was the result of the absence of (second quarter) and lower (six months) production at the Warrick smelter and the absence of production at the Wenatchee smelter. The absence of production at the São Luís smelter also contributed to the decrease in the 2016 six-month period.

Third-party sales for the Primary Metals segment declined 27% in the 2016 second quarter and 28% in the 2016 six-month period compared to the same periods in 2015. The decrease in both periods was mainly attributable to a 15% (second quarter) and 21% (six months) drop in average realized price, the absence of sales (approximately $80-second quarter and approximately $180-six months) from the Wenatchee and São Luís smelters that were curtailed, and lower energy sales in Brazil, due to both a decline in energy prices

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and a weaker Brazilian real. Lower volume in the remaining smelter portfolio also contributed to the decrease in the 2016 second quarter. The negative impacts in the 2016 six-month period were slightly offset by higher volume in the remaining smelter portfolio.

In both periods, the change in average realized price was driven by a 13% (second quarter) and 15% (six months) lower average LME price (on 15-day lag) and lower regional premiums, which dropped by an average of 35% (second quarter) and 52% (six months) in the United States and Canada, 35% (second quarter) and 56% (six months) in Europe, and 47% (second quarter) and 64% (six months) in the Pacific region.

Intersegment sales declined 16% and 24% in the 2016 second quarter and six-month period, respectively, compared with the corresponding periods in 2015 principally due to a decrease in average realized price. Lower demand from the Global Rolled Products and Transportation and Construction Solutions segments also contributed to the decline in the 2016 six-month period.

ATOI for this segment decreased $26 in the 2016 second quarter and $199 in the 2016 six-month period compared to the same periods in 2015. The decline in both periods was primarily driven by both the previously mentioned lower average realized aluminum price and lower energy sales. These negative impacts were mostly offset in the 2016 second quarter and partially offset in the 2016 six-month period by lower costs for alumina and net productivity improvements.

In the 2016 third quarter (comparison with the 2015 third quarter), aluminum production will be approximately 100 kmt lower as a result of the closure of the Warrick smelter and the curtailment of the Wenatchee smelter. Also, third-party sales will reflect the absence of approximately $50 due to the Wenatchee curtailment. Additionally, net productivity improvements are anticipated in this segment.

Global Rolled Products

	Second quarter ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Third-party aluminum shipments (kmt)		480		462		913		894
Alcoa’s average realized price per metric ton of aluminum*	$	3,227	$	3,608	$	3,226	$	3,679
Third-party sales	$	1,550	$	1,668	$	2,947	$	3,289
Intersegment sales		29		34		58		70
Total sales	$	1,579	$	1,702	$	3,005	$	3,359
ATOI	$	68	$	76	$	136	$	130

* Generally, average realized price per metric ton of aluminum includes two elements: a) the price of metal (the underlying base metal component plus a regional premium – see the footnote to the table in Primary Metals above for a description of these two components), and b) the conversion price, which represents the incremental price over the metal price component that is associated with converting primary aluminum into sheet and plate. In this circumstance, the metal price component is a pass-through to this segment’s customers with limited exception (e.g., fixed-priced contracts, certain regional premiums).

Third-party sales for the Global Rolled Products segment decreased 7% and 10% in the 2016 second quarter and six-month period, respectively, compared with the corresponding periods in 2015. In both periods, the decline was mainly caused by unfavorable pricing due to a decrease in metal prices (both LME and regional premium components) and unfavorable product mix. These negative impacts were somewhat offset in the 2016 second quarter and slightly offset in the 2016 six-month period by overall higher volume. The absence of sales ($23) from a rolling mill in Russia that was divested in March 2015 also contributed to the decline in the 2016 six-month period. The overall higher volume in both periods was mainly the result of increased demand in the can sheet packaging and automotive markets, somewhat offset by lower demand in a number of other markets.

ATOI for this segment decreased $8 in the 2016 second quarter and increased $6 in the 2016 six-month period compared to the same periods in 2015.

The decline in the 2016 second quarter was principally due to costs ($17) of converting the Warrick (Indiana) rolling mill into a cold metal plant due to the permanent closure of Alcoa’s Warrick smelter in the first quarter of 2016 (see Primary Metals above), overall lower volume, and unfavorable pricing in the global can sheet packaging market. These negative impacts were mostly offset by net productivity improvements across all businesses.

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In the 2016 six-month period, the improvement was primarily related to net productivity improvements across all businesses. This positive impact was mostly offset by costs ($20) of converting the Warrick rolling mill into a cold metal plant due to the permanent closure of Alcoa’s Warrick smelter in the first quarter of 2016 (see Primary Metals above), unfavorable pricing in the global can sheet packaging market, and overall lower volume.

In the 2016 third quarter (comparison with the 2015 third quarter), stronger demand in the automotive market is anticipated as automotive sheet shipments are expected to increase approximately 50%, which will be supplied mainly from Alcoa’s Davenport, IA facility, as well as the Tennessee facility that continues to ramp-up production. Also, lower demand in the aerospace market due to inventory destocking and model transition, lower North America build rates in the commercial transportation market, and pricing pressure in the can sheet packaging market are all expected. Additionally, net productivity improvements across all businesses within this segment are anticipated while additional costs ($15) related to the conversion of the Warrick smelter into a cold metal plant are expected.

Engineered Products and Solutions

	Second quarter ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Third-party sales	$	1,465	$	1,279	$	2,914	$	2,536
ATOI	$	180	$	165	$	342	$	321

In April 2016, Alcoa completed the sale of the Remmele Medical business to LISI MEDICAL. This business, which was part of Alcoa’s acquisition of RTI International Metals in July 2015, manufactures precision-machined metal products for customers in the minimally invasive surgical device and implantable device markets. While owned by Alcoa, the operating results and assets and liabilities of this business were included in the Engineered Products and Solutions segment. This business generated sales of approximately $20 from January 1, 2016 through the divestiture date, April 29, 2016, and, at the time of the divestiture, had approximately 330 employees.

Third-party sales for the Engineered Products and Solutions segment increased 15% in both the 2016 second quarter and six-month period compared with the corresponding periods in 2015. The improvement in both periods was mostly due to the third-party sales ($187-second quarter and $404-six months) of two businesses (TITAL and RTI International Metals), primarily aerospace-related, that were acquired in March 2015 and July 2015, respectively. Additionally, in both periods, overall higher volume in this segment’s organic businesses contributed to the increase but were offset by unfavorable pricing in the aerospace market. The overall higher volume in both periods was largely attributable to the industrial gas turbine market, partially offset by lower volume in the commercial transportation market.

ATOI for this segment improved $15 in the 2016 second quarter and $21 in the 2016 six-month period compared to the same periods in 2015. In both periods, the increase was principally the result of net productivity improvements across all businesses and a positive contribution from inorganic growth, mostly offset by unfavorable price/product mix and higher costs (both start-up and ongoing) related to growth projects (e.g., the aerospace expansion at the La Porte, IN plant and the aluminum-lithium capacity expansion at the Lafayette, IN plant).

In the 2016 third quarter (comparison with the 2015 third quarter), demand in the commercial aerospace market is expected to improve due to an increase in the production of jet engines and the ramp-up of new aircraft models; however, an increase in pricing pressure is forecasted. Also, an overall improvement in the industrial gas turbine market is expected due to strength in North America, partially offset by softness in Europe. Additionally, net productivity improvements across all businesses within this segment are anticipated.

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Transportation and Construction Solutions

	Second quarter ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Third-party sales	$	467	$	492	$	896	$	963
ATOI	$	46	$	44	$	85	$	82

Third-party sales for the Transportation and Construction Solutions segment decreased 5% and 7% in the 2016 second quarter and six-month period, respectively, compared with the corresponding periods in 2015. The decline in both periods was mostly due to lower volume related to the heavy-duty truck component of the commercial transportation market in North America, somewhat offset by higher volume in the building and construction market. The absence of sales to customers in the automotive market (wheels for passenger vehicles), as a result of a prior year decision by Alcoa to no longer participate in such market, and unfavorable foreign currency movements, principally caused by a weaker Brazilian real, also contributed to the decrease in the 2016 six-month period.

ATOI for this segment improved $2 in the 2016 second quarter and $3 in the 2016 six-month period compared to the same periods in 2015. In both periods, the increase was principally the result of net productivity improvements across all businesses, mostly offset by overall lower volume and general cost increases.

In the 2016 third quarter (comparison with the 2015 third quarter), the non-residential building and construction market is expected to improve in both North America and Europe. Also, the heavy-duty truck component of the commercial transportation market in North America is expected to decline based on higher inventory levels and lower customer orders, while improvements in Europe and Asia Pacific are anticipated. Additionally, net productivity improvements are anticipated in this segment.

Reconciliation of ATOI to Consolidated Net Income Attributable to Alcoa

Items required to reconcile total segment ATOI to consolidated net income attributable to Alcoa include: the impact of LIFO inventory accounting; metal price lag; interest expense; noncontrolling interests; corporate expense (general administrative and selling expenses of operating the corporate headquarters and other global administrative facilities, along with depreciation and amortization on corporate-owned assets); restructuring and other charges; and other items, including intersegment profit eliminations, differences between tax rates applicable to the segments and the consolidated effective tax rate, and other nonoperating items such as foreign currency transaction gains/losses and interest income.

The following table reconciles total segment ATOI to consolidated net income attributable to Alcoa:

	Second quarter ended June 30,						Six months ended June 30,
	2016			2015			2016			2015
Total segment ATOI	$	444		$	567		$	735		$	1,223
Unallocated amounts (net of tax):
Impact of LIFO		(10	)		36			(6	)		43
Metal price lag		7			(39	)		8			(62	)
Interest expense		(84	)		(80	)		(167	)		(160	)
Noncontrolling interests		(43	)		(67	)		(38	)		(127	)
Corporate expense		(77	)		(65	)		(132	)		(127	)
Restructuring and other charges		(15	)		(159	)		(76	)		(320	)
Other		(87	)		(53	)		(173	)		(135	)
Consolidated net income attributable to Alcoa	$	135		$	140		$	151		$	335

The changes in the reconciling items between total segment ATOI and consolidated net income attributable to Alcoa for the 2016 second quarter and six-month period compared with the corresponding periods in 2015 (unless otherwise noted) consisted of:

• a change in the Impact of LIFO, mostly due to an increase in the price of aluminum (driven by higher base metal prices (LME), slightly offset by lower regional premiums) at June 30, 2016 indexed to December 31, 2015 for the 2016 second quarter and six-month period compared to a decrease in the price of aluminum (both lower base metal prices (LME) and regional premiums) at June 30, 2015 indexed to December 31, 2014 for the 2015 second quarter and six-month period (overall, the price of aluminum in the 2016 second quarter and six-month period was lower compared with the 2015 second quarter and six-month period);

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• a change in Metal price lag, the result of an increase in the price of aluminum (see Impact of LIFO above) at June 30, 2016 indexed to December 31, 2015 for the 2016 second quarter and six-month period compared to a decrease in the price of aluminum (see Impact of LIFO above) at June 30, 2015 indexed to December 31, 2014 for the 2015 second quarter and six-month period (Metal price lag describes the timing difference created when the average price of metal sold differs from the average cost of the metal when purchased by Alcoa’s midstream and downstream operations. In general, when the price of metal increases, metal price lag is favorable, and when the price of metal decreases, metal price lag is unfavorable);

• an increase in Interest expense, mainly caused by a lower amount of capitalized interest;

• a change in Noncontrolling interests, due to the change in results of AWAC, principally driven by a decline in operating results, partially offset by the absence of restructuring charges related to the permanent closure of the Anglesea power station and coal mine and a $27 ($8 was noncontrolling interest’s share) gain on the sale of an equity interest in a natural gas pipeline in Australia, and, in the 2016 six-month period only, the absence of an $85 ($34 was noncontrolling interest’s share) discrete income tax charge for a valuation allowance on certain deferred tax assets;

• an increase in Corporate expense, primarily attributable to costs related to the planned separation of Alcoa ($37 – second quarter and $54 – six months), mostly offset by a decrease in various expenses;

• a decrease in Restructuring and other charges due to fewer portfolio actions; and

• a change in Other, largely the result of an unfavorable tax impact resulting from the difference between Alcoa’s consolidated estimated annual effective tax rate and the tax rates applicable to the segments and the absence of a gain on the sale of land around the Lake Charles, LA anode facility ($19), somewhat offset in the 2016 second quarter and partially offset in the 2016 six-month period by a gain on the sale of an equity interest in a natural gas pipeline in Australia ($19) and a benefit for an arbitration recovery related to a 2010 fire at the Iceland smelter ($12), as well as an unfavorable and a favorable tax impact related to the interim period treatment of losses in certain foreign jurisdictions for which no tax benefit was recognized ($10 – second quarter and $23 – six months), respectively, and the absence of a net discrete income tax charge for a valuation allowance on certain deferred tax assets ($34 – six months only) impacted the change in Other.

Environmental Matters

See the Environmental Matters section of Note I to the Consolidated Financial Statements in Part I Item 1 of this Form 10-Q.

Liquidity and Capital Resources

Cash From Operations

Cash used for operations was $98 in the 2016 six-month period compared with cash provided from operations of $297 in the same period of 2015. The decline in cash from operations of $395 was principally due to lower operating results (net income plus net add-back for noncash transactions in earnings), somewhat offset by a positive change in both noncurrent assets of $137 and working capital of $84.

The favorable change in noncurrent assets was mostly related to a $100 smaller prepayment made under a natural gas supply agreement in Australia (see below).

The components of the positive change in working capital were as follows:

• an unfavorable change of $18 in receivables;

• a positive change of $218 in inventories, largely attributable to lower purchases in the downstream operations;

• a negative change of $3 in prepaid expenses and other current assets;

• an unfavorable change of $113 in accounts payable, trade, principally the result of timing of payments;

• a favorable change of $73 in accrued expenses, primarily due to lower payments for employee incentive compensation and higher customer deposits; and

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• a negative change of $73 in taxes, including income taxes, mostly driven by a lower level of pretax income.

On April 8, 2015, Alcoa’s majority-owned subsidiary, Alcoa of Australia Limited (AofA), which is part of AWAC, secured a new 12-year gas supply agreement to power its three alumina refineries in Western Australia beginning in July 2020. This agreement was conditional on the completion of a third-party acquisition of the related energy assets from the then-current owner, which occurred in June 2015. The terms of AofA’s gas supply agreement required a prepayment of $500 to be made in two installments. The first installment of $300 was made at the time of the completion of the third-party acquisition in June 2015 and the second installment of $200 was made in April 2016.

Financing Activities

Cash used for financing activities was $207 in the 2016 six-month period, an increase of $48 compared with $159 in the corresponding period of 2015.

The use of cash in the 2016 six-month period was primarily due to $882 in payments on debt, mostly related to the repayment of borrowings under certain revolving credit facilities (see below), $114 in dividends paid to shareholders, and $84 in cash paid to the noncontrolling interest in AWAC, Alumina Limited of Australia. These items were mostly offset by $876 in additions to debt, virtually all of which was the result of borrowings under certain revolving credit facilities (see below).

In the 2015 six-month period, the use of cash was primarily due to $1,037 in payments on debt, mostly related to the repayment of borrowings under certain revolving credit facilities, $109 in dividends paid to shareholders, and $71 in cash paid to the noncontrolling interest in AWAC, Alumina Limited of Australia. These items were mostly offset by $1,027 in additions to debt, virtually all of which was the result of borrowings under certain revolving credit facilities, and $26 in proceeds from employee exercises of 2.9 million stock options at a weighted average exercise price of $8.99 (not in millions).

At the end of 2015, Alcoa had nine revolving credit facilities (excluding its Five-Year Revolving Credit Facility), each with a different financial institution, providing a combined borrowing capacity of $990 and expiration dates ranging from February 2016 through September 2017. In the first quarter of 2016, three credit facilities ($350 combined capacity) that were due to expire in either February or March 2016 were extended to February 2017 or September 2016, respectively.

The purpose of any borrowings under these credit arrangements is to provide for working capital requirements and for other general corporate purposes. The covenants contained in all these arrangements are the same as Alcoa’s Five-Year Revolving Credit Agreement (see the Financing Activities section of Liquidity and Capital Resources included in Management’s Discussion and Analysis of Financial Condition and Results of Operations in Alcoa’s 2015 Form 10-K).

Within each of the first and second quarters of 2016, Alcoa borrowed and repaid $435 under the respective credit arrangements. The weighted-average interest rate and weighted-average days outstanding of the respective borrowings during the first and second quarters of 2016 were 1.87% and 1.82%, respectively, and 57 days and 78 days, respectively.

Alcoa’s cost of borrowing and ability to access the capital markets are affected not only by market conditions but also by the short- and long-term debt ratings assigned to Alcoa’s debt by the major credit rating agencies.

On March 31, 2016, Moody’s Investor Service (Moody’s) affirmed the following ratings for Alcoa: long-term debt at Ba1 and short-term debt at Speculative Grade Liquidity Rating-1. Additionally, Moody’s changed the current outlook from rating under review to negative. On June 30, 2016, Moody’s maintained the current outlook as negative based on the filing of a Form 10 registration statement related to the planned separation of Alcoa.

On April 21, 2016, Fitch affirmed the following ratings for Alcoa: long-term debt at BB+ and short-term debt at B. Additionally, Fitch changed the current outlook from positive to evolving. On July 7, 2016, Fitch changed the current outlook from evolving to stable based on the filing of a Form 10 registration statement related to the planned separation of Alcoa.

On April 29, 2016, Standard and Poor’s Ratings Service (S&P) affirmed the following ratings for Alcoa: long-term debt at BBB- and short-term debt at A-3. Additionally, S&P maintained the current outlook as stable.

Investing Activities

Cash provided from investing activities was $310 in the 2016 six-month period compared with cash used for investing activities of $685 in the 2015 six-month period, resulting in an increase in cash provided of $995.

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In the 2016 six-month period, the source of cash was mainly due to $549 in proceeds from the sale of assets and businesses, mostly related to $457 in proceeds from the redemption of company-owned life insurance policies and $102 in proceeds ($99 net of transaction costs) from the sale of the Remmele Medical business (see Engineered Products and Solutions in Segment Information above), which was part of Alcoa’s acquisition of RTI International Metals in July 2015; and $275 in sales of investments, composed of $145 for an equity interest in a natural gas pipeline in Australia and $130 for fixed income and equity securities held by Alcoa’s captive insurance company. These items were partially offset by $528 in capital expenditures, 31% of which related to growth projects, including the aerospace expansion (thick plate stretcher) at the Davenport, IA plant.

The use of cash in the 2015 six-month period was mainly due to $514 in capital expenditures, 45% of which related to growth projects, including the aerospace expansion at the La Porte, IN plant, the automotive expansion at the Alcoa, TN plant, the aerospace expansion (thick plate stretcher) at the Davenport, IA plant, the aerospace expansion (isothermal press) at the Savannah, GA plant (Firth Rixson), and the specialty foil expansion at the Itapissuma plant in Brazil; and $204 (net of cash acquired) for the acquisition of TITAL. These items were slightly offset by $59 in proceeds from the sale of assets and businesses, composed of a sale of land around the Lake Charles, LA anode facility and post-closing adjustments related to an ownership stake in a smelter, four rolling mills, and an ownership stake in a bauxite mine/alumina refinery divested between December 2014 and March 2015.

Recently Adopted and Recently Issued Accounting Guidance

See Note B to the Consolidated Financial Statements in Part I Item 1 of this Form 10-Q.

Forward-Looking Statements

This report contains statements that relate to future events and expectations and, as such, constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include those containing such words as “anticipates,” “believes,” “could,” “estimates,” “expects,” “forecasts,” “goal,” “intends,” “may,” “outlook,” “plans,” “projects,” “seeks,” “sees,” “should,” “targets,” “will,” “would,” or other words of similar meaning. All statements that reflect Alcoa’s expectations, assumptions, or projections about the future, other than statements of historical fact, are forward-looking statements, including, without limitation, forecasts concerning global demand growth for aluminum, supply/demand balances, and growth of the aerospace, automotive, and other end markets; statements regarding targeted financial results or operating performance; statements about Alcoa’s strategies, outlook, and business and financial prospects; and statements regarding the separation transaction. These statements reflect beliefs and assumptions that are based on Alcoa’s perception of historical trends, current conditions and expected future developments, as well as other factors management believes are appropriate in the circumstances. Forward-looking statements are subject to a number of risks, uncertainties and other factors, and are not guarantees of future performance. Important factors that could cause actual results to differ materially from those expressed or implied in the forward-looking statements include, but are not limited to: (a) uncertainties as to the timing of the separation and whether it will be completed; (b) the possibility that various closing conditions for the separation may not be satisfied; (c) the impact of the separation on the businesses of Alcoa; (d) the risk that the businesses will not be separated successfully or such separation may be more difficult, time-consuming or costly than expected, which could result in additional demands on Alcoa’s resources, systems, procedures and controls, disruption of its ongoing business and diversion of management’s attention from other business concerns; (e) material adverse changes in aluminum industry conditions, including global supply and demand conditions and fluctuations in London Metal Exchange-based prices and premiums, as applicable, for primary aluminum, alumina, and other products, and fluctuations in indexed-based and spot prices for alumina; (f) deterioration in global economic and financial market conditions generally; (g) unfavorable changes in the markets served by Alcoa; (h) the impact of changes in foreign currency exchange rates on costs and results; (i) increases in energy costs; (j) the inability to achieve the level of revenue growth, cash generation, cost savings, improvement in profitability and margins, fiscal discipline, or strengthening of competitiveness and operations

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anticipated from restructuring programs and productivity improvement, cash sustainability, technology advancements (including, without limitation, advanced aluminum alloys, Alcoa Micromill, and other materials and processes), and other initiatives; (k) Alcoa’s inability to realize expected benefits, in each case as planned and by targeted completion dates, from acquisitions, divestitures, facility closures, curtailments, or expansions, or international joint ventures; (l) political, economic, and regulatory risks in the countries in which Alcoa operates or sells products; (m) the outcome of contingencies, including legal proceedings, government or regulatory investigations, and environmental remediation; (n) the impact of cyber attacks and potential information technology or data security breaches; and (o) the other risk factors summarized in Alcoa’s Form 10-K for the year ended December 31, 2015, including under Part I, Item 1A thereof, and in the following sections of this report: Note I and the Derivatives section of Note O to the Consolidated Financial Statements; and the discussion included above under Segment Information. Alcoa disclaims any intention or obligation to update publicly any forward-looking statements, whether in response to new information, future events, or otherwise, except as required by applicable law. Market projections are subject to the risks discussed above and other risks in the market.

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Item 3. Quantitative and Qualitative Disclosures about Market Risk.

See the Derivatives section of Note O to the Consolidated Financial Statements in Part I Item 1 of this Form 10-Q.

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Item 4. Controls and Procedures.

(a) Evaluation of Disclosure Controls and Procedures

Alcoa’s Chief Executive Officer and Chief Financial Officer have evaluated the Company’s disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as of the end of the period covered by this report, and they have concluded that these controls and procedures are effective.

(b) Changes in Internal Control over Financial Reporting

There have been no changes in internal control over financial reporting during the second quarter of 2016, that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

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PART II – OTHER INFORMATION

Item 1. Legal Proceedings.

Environmental Matters

As previously reported, in 1996, Alcoa acquired the Fusina, Italy smelter and rolling operations and the Portovesme, Italy smelter, both of which are owned by Alcoa’s subsidiary, Alcoa Trasformazioni S.r.l. (“Trasformazioni”) from Alumix, an entity owned by the Italian Government. Alcoa also acquired the extrusion plants located in Feltre and Bolzano, Italy. At the time of the acquisition, Alumix indemnified Alcoa for pre-existing environmental contamination at the sites. In 2004, the Italian Ministry of Environment and Protection of Land and Sea (MOE) issued orders to Trasformazioni and Alumix for the development of a clean-up plan related to soil contamination in excess of allowable limits under legislative decree and to institute emergency actions and pay natural resource damages. On April 5, 2006, Trasformazioni’s Fusina site was also sued by the MOE and Minister of Public Works (MOPW, and collectively with the MOE, the “Ministers”) in the Civil Court of Venice for an alleged liability for environmental damages, in parallel with the orders already issued by the MOE. Trasformazioni appealed the orders, defended the civil case for environmental damages and filed suit against Alumix, as discussed below. Similar issues also existed with respect to the Bolzano and Feltre plants, based on orders issued by local authorities in 2006. Most, if not all, of the underlying activities occurred during the ownership of Alumix, the governmental entity that sold the Italian plants to Alcoa.

As noted above, in response to the 2006 civil suit by the MOE and MOPW, Trasformazioni filed suit against Alumix claiming indemnification under the original acquisition agreement, but brought that suit in the Court of Rome due to jurisdictional rules. In June 2008, the parties (Alcoa and now Ligestra S.r.l. (Ligestra), the successor to Alumix) signed a preliminary agreement by which they have committed to pursue a settlement. The Court of Rome accepted the request, and postponed the Court’s expert technical assessment, reserving its ability to schedule the deadline depending on the development of negotiations. Alcoa and Ligestra agreed to a settlement in December 2008 with respect to the Feltre site. Ligestra paid the sum of 1.08 million euros and Alcoa committed to clean up the site. Further postponements were granted by the Court of Rome, and the next hearing is scheduled for December 20, 2016.

In the meantime, Trasformazioni and Ligestra reached a preliminary agreement for settlement of the liabilities related to Fusina, allocating 80% and 20% of the remediation costs to Ligestra and Alcoa, respectively. In January 2014, a final agreement with Ligestra was signed, and on February 5, 2014, Alcoa signed a final agreement with the MOE and MOPW settling all environmental issues at the Fusina site. As set out in the agreement between Alcoa and Ligestra, those two parties will share the remediation costs and environmental damages claimed by the MOE and MOPW. The remediation project filed by Alcoa and Ligestra has been approved by the MOE. See the caption “Fusina and Portovesme, Italy” under the Environmental Matters section of Note I to the Consolidated Financial Statements in Part I Item 1 of this Form 10-Q. To provide time for settlement with Ligestra, the MOE and Alcoa jointly requested and the Civil Court of Venice has granted a series of postponements of hearings in the Venice trial, assuming that the case will be closed. Following the settlement, the parties caused the Court to dismiss the proceedings. The proceedings were, however, restarted in April 2015 by the MOE and MOPW because the Ministers had not ratified the settlement of February 5, 2014. The settlement was ratified earlier in 2016 and the Venice Court case was dismissed on July 5, 2016.

Alcoa and Ligestra have signed a similar agreement relating to the Portovesme site. However, that agreement was contingent upon final acceptance of the proposed soil remediation project for Portovesme that was rejected by the MOE in the fourth quarter of 2013. Alcoa submitted a revised proposal in May 2014 and a further revised proposal in February 2015, in agreement with Ligestra. The MOE issued a ministerial decree approving the final project in October 2015. Work on the soil remediation project commenced in the second quarter of 2016 and is expected to be completed in 2019. Alcoa and Ligestra are now working on a final groundwater remediation project, which is expected to be submitted to the MOE for review during the second half of 2016. Alcoa is unable to reasonably predict an outcome or to estimate a range of reasonably possible loss beyond what is described in the caption “Fusina and Portovesme, Italy” under the Environmental Matters section of Note I to the Consolidated Financial Statements in Part I Item 1 of this Form 10-Q because certain costs of groundwater remediation are not yet determined and the MOE has substantial discretion in defining the extent and duration of the remediation program. Alcoa and Ligestra have settled an allocation of the cost for groundwater remediation, subject to a cap, over which the agreement is null and void.

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Other Matters

On May 27, 2016, Alcoa filed a complaint in the Delaware Court of Chancery seeking a declaratory judgment on an expedited basis to forestall what the complaint alleges are continuing threats by Alumina Limited of Australia (“Alumina Limited”) and certain related parties to attempt to interfere with Alcoa’s proposed separation transaction (see Management’s Discussion and Analysis of Financial Condition and Results of Operations in Part I Item 2 of this Form 10-Q). Alumina Limited has claimed that it has certain consent and other rights under certain agreements governing Alcoa World Alumina and Chemicals, a global joint venture between Alcoa and Alumina Limited, in connection with the proposed separation transaction. Alcoa believes Alumina Limited’s claims are without merit and is seeking a declaratory judgment that Alumina Limited and its related parties do not have such consent and other rights. On June 17, 2016, Alumina filed its answer and counterclaims. Among other things, Alumina asserts that it has rights of consent regarding the separation, that the separation triggers various first option rights, and that it is entitled to a proportionate share of offtake or marketing rights as a result of the separation. Trial date has been set for September 20, 2016. At this time, the Company is unable to reasonably predict the ultimate outcome for this matter.

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Item 4. Mine Safety Disclosures.

The information concerning mine safety violations or other regulatory matters required by Section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Securities and Exchange Commission Regulation S-K (17 CFR 229.104) is included in Exhibit 95 of this report, which is incorporated herein by reference.

52

Item 6. Exhibits.

10(a).	2013 Alcoa Stock Incentive Plan, as Amended and Restated, incorporated by reference to Exhibit 10(a) to the Company’s Current Report on Form 8-K dated May 11, 2016
10(b).	Alcoa Internal Revenue Code 162(m) Compliant Annual Cash Incentive Compensation Plan, as Amended and Restated, incorporated by reference to Exhibit 10(b) to the Company’s Current Report on Form 8-K dated May 11, 2016
10(c).	Terms and Conditions for Restricted Stock Units under the 2013 Alcoa Stock Incentive Plan, effective July 22, 2016
10(d).	Terms and Conditions for Stock Option Awards under the 2013 Alcoa Stock Incentive Plan, effective July 22, 2016
10(e).	Terms and Conditions for Special Retention Awards under the 2013 Alcoa Stock Incentive Plan, effective July 22, 2016
12.	Computations of Ratio of Earnings to Fixed Charges and Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends
15.	Letter regarding unaudited interim financial information
31.	Certifications pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.	Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
95.	Mine Safety Disclosure
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

53

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	Alcoa Inc.
July 29, 2016	By	/s/ WILLIAM F. OPLINGER
Date		William F. Oplinger
		Executive Vice President and
		Chief Financial Officer
		(Principal Financial Officer)
July 29, 2016	By	/s/ ROBERT S. COLLINS
Date		Robert S. Collins
		Vice President and Controller
		(Principal Accounting Officer)

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EXHIBIT INDEX

10(a).	2013 Alcoa Stock Incentive Plan, as Amended and Restated, incorporated by reference to Exhibit 10(a) to the Company’s Current Report on Form 8-K dated May 11, 2016
10(b).	Alcoa Internal Revenue Code 162(m) Compliant Annual Cash Incentive Compensation Plan, as Amended and Restated, incorporated by reference to Exhibit 10(b) to the Company’s Current Report on Form 8-K dated May 11, 2016
10(c).	Terms and Conditions for Restricted Stock Units under the 2013 Alcoa Stock Incentive Plan, effective July 22, 2016
10(d).	Terms and Conditions for Stock Option Awards under the 2013 Alcoa Stock Incentive Plan, effective July 22, 2016
10(e).	Terms and Conditions for Special Retention Awards under the 2013 Alcoa Stock Incentive Plan, effective July 22, 2016
12.	Computations of Ratio of Earnings to Fixed Charges and Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends
15.	Letter regarding unaudited interim financial information
31.	Certifications pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.	Certification pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
95.	Mine Safety Disclosure
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

55

EX-10.(C)

Exhibit 10(c)

ALCOA INC.

2013 ALCOA STOCK INCENTIVE PLAN

TERMS AND CONDITIONS FOR RESTRICTED SHARE UNITS

Effective July 22, 2016

These terms and conditions, including Appendices A and B attached hereto, (the “Award Terms”) are authorized by the Compensation and Benefits Committee of the Board of Directors. They are deemed to be incorporated into and form a part of every Award of Restricted Share Units issued on or after July 22, 2016 under the 2013 Alcoa Stock Incentive Plan, as amended and restated and as may be further amended from time to time (the “Plan”).

Terms that are defined in the Plan have the same meanings in the Award Terms.

General Terms and Conditions

1. Restricted Share Units are subject to the provisions of the Plan and the provisions of the Award Terms. If the Plan and the Award Terms are inconsistent, the provisions of the Plan will govern. Interpretations of the Plan and the Award Terms by the Committee are binding on the Participant and the Company. A Restricted Share Unit is an undertaking by the Company to issue the number of Shares indicated in the Participant’s account at Merrill Lynch’s OnLine^® website www.benefits.ml.com, subject to the fulfillment of certain conditions, except to the extent otherwise provided in the Plan or herein. A Participant has no voting rights or rights to receive dividends on Restricted Share Units, but the Board of Directors may authorize that dividend equivalents be accrued and paid on Restricted Share Units upon vesting in accordance with paragraphs 2 and 4 below.

Vesting and Payment

2. A Restricted Share Unit vests on the third anniversary date of the grant date and will be paid to the Participant in Shares on the vesting date or within 90 days thereafter.

3. Except as provided in paragraph 4, if a Participant’s employment with the Company (including its Subsidiaries) is terminated before the Restricted Share Unit vests, the Award is forfeited and is automatically canceled.

4. The following are exceptions to the vesting rules:

• Death or Disability: a Restricted Share Unit held by a Participant, who dies while an Employee or who is permanently and totally disabled while an Employee, is not forfeited but vests and is paid on the original stated vesting date set forth in paragraph 2.

A Participant is deemed to be permanently and totally disabled if the Participant is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than

12 months. A Participant shall not be considered to be permanently and totally disabled unless the Participant furnishes proof of the existence thereof in such form and manner, and at such times, as the Company may require. In the event of a dispute, the determination whether a Participant is permanently and totally disabled will be made by the Committee or its delegate.

• Change in Control: a Restricted Share Unit vests if a Replacement Award is not provided following certain Change in Control events, as described in the Plan. If the Change in Control qualifies as a “change in control event” within the meaning of Treas. Reg. § 1.409-3(i)(5), the vested Restricted Share Unit will be paid to the Participant within 30 days following the Change in Control. If the Change in Control does not so qualify, the vested Restricted Share Unit will be paid to the Participant on the original stated vesting date set forth in paragraph 2.

• Termination Following Change in Control: as further described in the Plan, if a Replacement Award is provided following a Change in Control, but within 24 months of such Change in Control the Participant’s employment is terminated without Cause (as defined in the Alcoa Inc. Change in Control Severance Plan) or by the Participant for Good Reason (as defined in the Alcoa Inc. Change in Control Severance Plan), the Replacement Award will vest and will be paid to the Participant on the original stated vested date set forth in paragraph 2.

• Retirement: a Restricted Share Unit is not forfeited if it is held by a Participant who retires at least 6 months after the grant date under a Company or Subsidiary plan (or if there is no Company or Subsidiary plan, a government retirement plan) in which the Participant is eligible for an immediate payment of a retirement benefit. In such event, the Restricted Share Unit vests and is paid in accordance with the original vesting schedule of the grant set forth in paragraph 2.

• Divestiture: if a Restricted Share Unit is held by a Participant who is to be terminated from employment with the Company or a Subsidiary as a result of a divestiture of a business or a portion of a business of the Company and the Participant either becomes an employee of (or is leased or seconded to) the entity acquiring the business on the date of the closing, or the Participant is not offered employment with the entity acquiring the business and is terminated by the Company or a Subsidiary within 90 days of the closing of the sale, then, at the discretion of the Chief Executive Officer of the Company, the Restricted Share Unit will not be forfeited and will vest and be paid in accordance with the original vesting schedule set forth in paragraph 2. For purposes of this paragraph, employment by “the entity acquiring the business” includes employment by a subsidiary or affiliate of the entity acquiring the business; and “divestiture of a business” means the sale of assets or stock resulting in the sale of a going concern. “Divestiture of a business” does not include a plant shut down or other termination of a business.

5. A Participant will receive one Share upon the vesting and payment of a Restricted Share Unit.

2

Taxes

6. All taxes required to be withheld under applicable tax laws in connection with a Restricted Share Unit must be paid by the Participant at the appropriate time under applicable tax laws. The Company may satisfy applicable tax withholding obligations by any of the means set forth in Section 15(l) of the Plan, but will generally withhold from the Shares to be issued upon payment of the Restricted Share Unit that number of Shares with a fair market value on the vesting date equal to the taxes required to be withheld at the minimum required rates or, to the extent permitted under applicable accounting principles, at up to the maximum individual tax rate for the applicable tax jurisdiction, which include, for Participants subject to taxation in the United States, applicable income taxes, federal and state unemployment compensation taxes and FICA/FUTA taxes. Notwithstanding the foregoing, if the Participant is subject to the short-swing profit rules of Section 16(b) of the Securities Exchange Act of 1934, as amended, the Company will withhold Shares from the Shares to be issued upon payment of the Restricted Share Unit, as described herein, and will not use the other means set forth in the Plan unless pursuant to an election by the Participant or in the event that withholding in Shares is problematic under applicable tax or securities law or has materially adverse accounting consequences.

Beneficiaries

7. If permitted by the Company, Participants will be entitled to designate one or more beneficiaries to receive all Restricted Share Units that have not yet vested at the time of death of the Participant. All beneficiary designations will be on beneficiary designation forms approved for the Plan. Copies of the form are available from the Communications Center on Merrill Lynch’s OnLine^® website www.benefits.ml.com

8. Beneficiary designations on an approved form will be effective at the time received by the Communications Center on Merrill Lynch’s OnLine^® website www.benefits.ml.com. A Participant may revoke a beneficiary designation at any time by written notice to the Communications Center on Merrill Lynch’s OnLine^® website www.benefits.ml.com or by filing a new designation form. Any designation form previously filed by a Participant will be automatically revoked and superseded by a later-filed form.

9. A Participant will be entitled to designate any number of beneficiaries on the form, and the beneficiaries may be natural or corporate persons.

10. The failure of any Participant to obtain any recommended signature on the form will not prohibit the Company from treating such designation as valid and effective. No beneficiary will acquire any beneficial or other interest in any Restricted Share Unit prior to the death of the Participant who designated such beneficiary.

11. Unless the Participant indicates on the form that a named beneficiary is to receive Restricted Share Units only upon the prior death of another named beneficiary, all beneficiaries designated on the form will be entitled to share equally in the Restricted Share Units upon vesting. Unless otherwise indicated, all such beneficiaries will have an equal, undivided interest in all such Restricted Share Units.

3

12. Should a beneficiary die after the Participant but before the Restricted Share Unit is paid, such beneficiary’s rights and interest in the Award will be transferable by the beneficiary’s last will and testament or by the laws of descent and distribution. A named beneficiary who predeceases the Participant will obtain no rights or interest in a Restricted Share Unit, nor will any person claiming on behalf of such individual. Unless otherwise specifically indicated by the Participant on the beneficiary designation form, beneficiaries designated by class (such as “children,” “grandchildren” etc.) will be deemed to refer to the members of the class living at the time of the Participant’s death, and all members of the class will be deemed to take “per capita.”

13. If a Participant does not designate a beneficiary or if the Company does not permit a beneficiary designation, the Restricted Share Units that have not yet vested or been paid at the time of death of the Participant will be paid to the Participant’s legal heirs pursuant to the Participant’s last will and testament or by the laws of descent and distribution.

Adjustments

14. In the event of an Equity Restructuring, , the Committee will equitably adjust the Restricted Share Unit as it deems appropriate to reflect the Equity Restructuring, which may include (i) adjusting the number and type of securities subject to the Restricted Share Unit; and (ii) adjusting the terms and conditions of the Restricted Share Unit. The adjustments provided under this paragraph 14 will be nondiscretionary and final and binding on all interested parties, including the affected Participant and the Company; provided that the Committee will determine whether an adjustment is equitable.

Repayment/Forfeiture

15. As an additional condition of receiving the Restricted Share Unit, the Participant agrees that the Restricted Share Unit and any benefits or proceeds the Participant may receive hereunder shall be subject to forfeiture and/or repayment to the Company to the extent required (i) under the terms of any recoupment or “clawback” policy adopted by the Company to comply with applicable laws or with the Company’s Corporate Governance Guidelines or other similar requirements, as such policy may be amended from time to time (and such requirements shall be deemed incorporated into the Award Terms without the Participant’s consent) or (ii) to comply with any requirements imposed under applicable laws and/or the rules and regulations of the securities exchange or inter-dealer quotation system on which the Shares are listed or quoted, including, without limitation, pursuant to Section 954 of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010. Further, if the Participant receives any amount in excess of what the Participant should have received under the terms of the Restricted Share Unit for any reason (including without limitation by reason of a financial restatement, mistake in calculations or administrative error), all as determined by the Committee, then the Participant shall be required to promptly repay any such excess amount to the Company.

4

Miscellaneous Provisions

16. Stock Exchange Requirements; Applicable Laws. Notwithstanding anything to the contrary in the Award Terms, no Shares issuable upon vesting of the Restricted Share Units, and no certificate representing all or any part of such Shares, shall be issued or delivered if, in the opinion of counsel to the Company, such issuance or delivery would cause the Company to be in violation of, or to incur liability under, any securities law, or any rule, regulation or procedure of any U.S. national securities exchange upon which any securities of the Company are listed, or any listing agreement with any such securities exchange, or any other requirement of law or of any administrative or regulatory body having jurisdiction over the Company or a Subsidiary.

17. Shareholder Rights. No person or entity shall be entitled to vote, receive dividends or be deemed for any purpose the holder of any Shares until the Restricted Share Unit shall have vested and been paid in the form of Shares in accordance with the provisions of the Award Terms.

18. Notices. Any notice required or permitted under the Award Terms shall be in writing and shall be deemed sufficient when delivered personally or sent by confirmed email, telegram, or fax or five days after being deposited in the mail, as certified or registered mail, with postage prepaid, and addressed to the Company at the Company’s principal corporate offices or to the Participant at the address maintained for the Participant in the Company’s records or, in either case, as subsequently modified by written notice to the other party.

19. Severability and Judicial Modification. If any provision of the Award Terms is held to be invalid or unenforceable under the applicable laws of any country, state, province, territory or other political subdivision or the Company elects not to enforce such restriction, the remaining provisions shall remain in full force and effect and the invalid or unenforceable provision shall be modified only to the extent necessary to render that provision valid and enforceable to the fullest extent permitted by law. If the invalid or unenforceable provision cannot be, or is not, modified, that provision shall be severed from the Award Terms and all other provisions shall remain valid and enforceable.

20. Successors. The Award Terms shall be binding upon and inure to the benefit of the Company and its successors and assigns, on the one hand, and the Participant and his or her heirs, beneficiaries, legatees and personal representatives, on the other hand.

21. Appendices. Notwithstanding any provisions in the Award Terms, for Participants residing and/or working outside the United States, the Restricted Share Unit shall be subject to the additional terms and conditions set forth in Appendix A to the Award Terms and to any special terms and conditions for the Participant’s country set forth in Appendix B to the Award Terms. Moreover, if the Participant relocates outside the United States or relocates between the countries included in Appendix B, the additional terms and conditions set forth in Appendix A and the special terms and conditions for such country set forth in Appendix B will apply to the Participant, to the extent the Company determines that the application of such terms and conditions is necessary or advisable for legal or administrative reasons. The Appendices constitute part of the Award Terms.

22. Imposition of Other Requirements. The Company reserves the right to impose other requirements on the Participant’s participation in the Plan, on the Restricted Share Unit and on any Shares acquired under the Plan, to the extent the Company determines it is necessary or advisable for legal or administrative reasons, and to require the Participant to sign any additional agreements or undertakings that may be necessary to accomplish the foregoing.

5

23. Compliance with Code Section 409A. It is intended that the Restricted Share Right granted pursuant to the Award Terms be compliant with Section 409A of the Code and the Award Terms shall be interpreted, construed and operated to reflect this intent. Notwithstanding the foregoing, the Award Terms and the Plan may be amended at any time, without the consent of any party, to the extent necessary or desirable to satisfy any of the requirements under Section 409A of the Code, but the Company shall not be under any obligation to make any such amendment. Further, the Company and its Subsidiaries do not make any representation to the Participant that the Restricted Share Right granted pursuant to the Award Terms satisfies the requirements of Section 409A of the Code, and the Company and its Subsidiaries will have no liability or other obligation to indemnify or hold harmless the Participant or any other party for any tax, additional tax, interest or penalties that the Participant or any other party may incur in the event that any provision of the Award Terms or any amendment or modification thereof or any other action taken with respect thereto, is deemed to violate any of the requirements of Section 409A of the Code.

24. Waiver. A waiver by the Company of breach of any provision of the Award Terms shall not operate or be construed as a waiver of any other provision of the Award Terms, or of any subsequent breach by the Participant or any other Participant.

25. No Advice Regarding Award. The Company is not providing any tax, legal or financial advice, nor is the Company making any recommendations regarding the Participant’s participation in the Plan, or the Participant’s acquisition or sale of the underlying Shares. The Participant is hereby advised to consult with the Participant’s own personal tax, legal and financial advisors regarding the Participant’s participation in the Plan before taking any action related to the Plan.

26. Governing Law and Venue. As stated in the Plan, the Restricted Share Unit and the provisions of the Award Terms and all determinations made and actions taken thereunder, to the extent not otherwise governed by the laws of the United States, shall be governed by the laws of the State of New York, United States of America, without reference to principles of conflict of laws, and construed accordingly. The jurisdiction and venue for any disputes arising under, or any actions brought to enforce (or otherwise relating to), the Restricted Share Unit will be exclusively in the courts in the State of New York, County of New York, including the Federal Courts located therein (should Federal jurisdiction exist).

27. Electronic Delivery and Acceptance. The Company may, in its sole discretion, decide to deliver any documents related to current or future participation in the Plan by electronic means. The Participant hereby consents to receive such documents by electronic delivery and agrees to participate in the Plan through an on-line or electronic system established and maintained by the Company or a third party designated by the Company.

28. Entire Agreement. The Award Terms and the Plan embody the entire understanding and agreement of the parties with respect to the subject matter hereof, and no promise, condition, representation or warranty, express or implied, not stated or incorporated by reference herein, shall bind either party hereto.

6

Acceptance of Award

29. In accordance with Section 15(c) of the Plan (as in effect at the grant date), the Participant may reject the Restricted Share Unit by notifying the Company within 30 days of the grant date that he or she does not accept the Restricted Share Unit. The Participant’s acceptance of the Restricted Share Unit constitutes the Participant’s acceptance of and agreement with the Award Terms. Notwithstanding the foregoing, if required by the Company, the Participant will provide a signed copy of the Award Terms in such manner and within such timeframe as may be requested by the Company. The Company has no obligation to issue Shares to the Participant if the Participant does not accept the Restricted Share Unit.

Performance Feature

30. If the vesting of a Restricted Share Unit is subject to a performance condition, the following additional terms and conditions will apply to that Award:

• The Participant will have the right to receive from 0% to 200% of the number of Shares indicated on the grant date, based on achievement of performance goals established by the Committee for that Award.

• The performance period is three years. Attainment of performance goals for each year of the three-year period will be determined or certified, as applicable, by the Committee at the end of each year with one-third of the number of restricted share units initially granted subject to the performance goals each year.

• Except as otherwise set forth in paragraph 4 of the Award Terms or below in this “Performance Feature” section, vesting of the Award will occur upon satisfaction of the time-based vesting conditions set forth in paragraph 2 of the Award Terms and payment of the Award will be based on the extent to which the performance objectives established by the Committee have been attained. In any case, except where payment of the Award is made upon a Change in Control within the meaning of Treas. Reg. § 1.409-3(i)(5), in no event will payment of the Award occur outside of the time period set forth in paragraph 2.

• In the event of termination of the Participant’s employment with the Company (including its Subsidiaries) before the vesting of the Restricted Share Unit by reason of death, disability, retirement or divestiture, each as described in paragraph 4, payment of the Restricted Share Unit will be based on the extent to which the performance objectives established by the Committee have been attained following the end of the performance period.

• In the event of a Change in Control, the performance feature of the Award will cease to apply and the Award will be converted into a time-based award in accordance with the formula set forth in Section 12(a)(v) of the Plan. The vesting and payment of such Award will then be governed in accordance with paragraph 4.

• Notwithstanding anything to the contrary in the Award Terms, if the Participant is or may be a Covered Employee, Section 13 of the Plan will be applicable to the Award.

7

APPENDIX A

TO THE ALCOA, INC.

2013 Stock Incentive Plan

Terms and Conditions for Restricted Share Units

For Non-U.S. Participants

This Appendix A contains additional (or, if so indicated, different) terms and conditions that govern the Restricted Share Units if the Participant resides and/or works outside of the United States. Capitalized terms used but not defined herein shall have the same meanings assigned to them in the Plan and the Terms and Conditions for Restricted Share Units (the “Terms and Conditions”).

A. Termination. This provision supplements paragraph 3 of the Terms and Conditions.

The Company will determine when the Participant is no longer providing services for purposes of the Restricted Share Units (including whether the Participant may still be considered to be providing services while on a leave of absence).

B. Responsibility for Taxes. This provision replaces paragraph 6 of the Terms and Conditions.

The Participant acknowledges that, regardless of any action taken by the Company or, if different, the Subsidiary that employs the Participant (the “Employer”), the ultimate liability for all income tax, social insurance, payroll tax, fringe benefits tax, payment on account or other tax-related items related to the Participant’s participation in the Plan and legally applicable to the Participant (“Tax-Related Items”) is and remains the Participant’s responsibility and may exceed the amount actually withheld by the Company or the Employer. The Participant further acknowledges that the Company and/or the Employer (a) make no representations or undertakings regarding the treatment of any Tax-Related Items in connection with any aspect of these Restricted Shares Units, including, but not limited to, the grant, vesting or settlement of Restricted Shares Units, the subsequent sale of Shares acquired pursuant to the Restricted Share Unit and the receipt of any dividends or dividend equivalents; and (b) do not commit to and are under no obligation to structure the terms of the Restricted Share Units or any aspect of the Restricted Share Units to reduce or eliminate the Participant’s liability for Tax-Related Items or achieve any particular tax result. The Participant shall not make any claim against the Company, the Employer or any other Subsidiary, or their respective board, officers or employees related to Tax-Related Items arising from this Award. Furthermore, if the Participant has become subject to tax in more than one jurisdiction, the Participant acknowledges that the Company and/or the Employer (or former employer, as applicable) may be required to withhold or account for Tax-Related Items in more than one jurisdiction.

Prior to any relevant taxable or tax withholding event, as applicable, the Participant will pay or make adequate arrangements satisfactory to the Company and/or the Employer to satisfy all Tax-Related Items. In this regard, the Participant authorizes the Company and/or the Employer, or their respective agents, at their discretion, to satisfy their withholding obligations with regard to all Tax-Related Items by: (i) requiring a cash payment from the Participant; (ii) withholding from the Participant’s wages or other cash compensation paid to the Participant by the Company and/or the Employer, (iii) withholding from the proceeds of the sale of Shares acquired pursuant to the Restricted Share Units, either through a voluntary sale or through a mandatory sale arranged by the Company (on the Participant’s behalf pursuant to this authorization without further consent); and/or (iv) withholding from the Shares subject to Restricted Share Units.

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Depending on the withholding method, the Company may withhold or account for Tax-Related Items by considering applicable minimum statutory withholding rates or other applicable withholding rates, including maximum applicable rates, in which case the Participant will receive a refund of any over-withheld amount in cash and will have no entitlement to the Share equivalent. If the obligation for Tax-Related Items is satisfied by withholding in Shares, the Participant is deemed, for tax purposes, to have been issued the full number of Shares subject to the vested Restricted Shares Units, notwithstanding that a number of the Shares is held back solely for the purpose of paying the Tax-Related Items.

Finally, the Participant shall pay to the Company and/or the Employer any amount of Tax-Related Items that the Company and/or the Employer may be required to withhold or account for as a result of the Participant’s participation in the Plan that cannot be satisfied by the means previously described. The Company may refuse to issue or deliver the Shares or the proceeds of the sale of Shares if the Participant fails to comply with his or her obligations in connection with the Tax-Related Items.

C. Nature of Award. In accepting the Restricted Share Units, the Participant acknowledges, understands and agrees that:

a. the Plan is established voluntarily by the Company, is discretionary in nature and may be modified, amended, suspended, or terminated by the Company at any time, to the extent permitted by the Plan;

b. this Award of Restricted Share Units is voluntary and occasional and does not create any contractual or other right to receive future Restricted Share Units, or benefits in lieu of Restricted Share Units, even if Restricted Share Units have been granted in the past;

c. all decisions with respect to future Restricted Share Units or other Awards, if any, will be at the sole discretion of the Company;

d. this Award of Restricted Share Units and the Participant’s participation in the Plan shall not create a right to, or be interpreted as forming an employment or service contract with the Company and shall not interfere with the ability of the Employer to terminate the Participant’s employment contract (if any) at any time;

e. the Participant’s participation in the Plan is voluntary;

f. this Award of Restricted Share Units and the Shares acquired under the Plan, and the income and value of same, are not part of normal or expected compensation or salary for any purposes, including, without limitation, calculating any severance, resignation, termination, redundancy, dismissal, end-of-service payments, bonuses, long-service awards, pension or retirement or welfare benefits or similar payments;

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g. the future value of the Shares subject to the Restricted Share Unit is unknown and cannot be predicted with certainty;

h. unless otherwise agreed with the Company, Restricted Share Units and the Shares acquired under the Plan, and the income and value of same, are not granted as consideration for, or in connection with, the service the Participant may provide as a director of any Subsidiary;

i. no claim or entitlement to compensation or damages shall arise from forfeiture of any portion of this Award of Restricted Share Units resulting from termination of the Participant’s employment relationship (for any reason whatsoever and regardless of whether later found to be invalid or in breach of applicable laws in the jurisdiction where the Participant is employed or the terms of the Participant’s employment agreement, if any), and, in consideration of this Award of Restricted Share Units to which the Participant is not otherwise entitled, the Participant irrevocably agrees never to institute any claim against the Company, the Employer and any other Subsidiary, waives his or her ability, if any, to bring any such claim, and releases the Company, the Employer and all other Subsidiaries from any such claim; if, notwithstanding the foregoing, any such claim is allowed by a court of competent jurisdiction, then, by participating in the Plan, the Participant shall be deemed irrevocably to have agreed not to pursue such claim and agrees to execute any and all documents necessary to request dismissal or withdrawal of such claims;

j. unless otherwise provided in the Plan or by the Company in its discretion, this Award of Restricted Share Units and the benefits under the Plan evidenced by these Award Terms do not create any entitlement to have this Award of Restricted Share Units or any such benefits transferred to, or assumed by, another company nor to be exchanged, cashed out or substituted for, in connection with any corporate transaction affecting the Shares; and

k. neither the Company, the Employer nor any other Subsidiary shall be liable for any foreign exchange rate fluctuation between the Participant’s local currency and the United States Dollar that may affect the value of the Restricted Share Units or of any amounts due to the Participant pursuant to the Restricted Share Units or the subsequent sale of any Shares acquired under the Plan.

D. Data Privacy. The Participant hereby explicitly and unambiguously consents to the collection, use and transfer, in electronic or other form, of the Participant’s personal data as described in these Award Terms and any other grant materials by and among, as applicable, the Company, the Employer and any other Subsidiary for the exclusive purpose of implementing, administering and managing the Participant’s participation in the Plan.

The Participant understands that the Company and the Employer may hold certain personal information about the Participant, including, but not limited to, the Participant’s name, home address, email address and telephone number, date of birth, social insurance number, passport or other identification number, salary, nationality, job title, any shares of stock or directorships held in the Company, details of all Restricted Share Units or any other entitlement to shares of stock awarded, canceled, exercised, vested, unvested or outstanding in the Participant’s favor (“Data”), for the exclusive purpose of implementing, administering and managing the Plan.

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The Participant understands that Data may be transferred to Merrill Lynch, which is assisting the Company with the implementation, administration and management of the Plan. The Participant understands that the recipients of Data may be located in the United States or elsewhere, and that the recipients’ country (e.g., the United States) may have different data privacy laws and protections than the Participant’s country. The Participant understands that the Participant may request a list with the names and addresses of any potential recipients of Data by contacting the Participant’s local human resources representative. The Participant authorizes the Company, Merrill Lynch and any other possible recipients which may assist the Company (presently or in the future) with implementing, administering and managing the Plan to receive, possess, use, retain and transfer Data, in electronic or other form, for the sole purpose of implementing, administering and managing the Participant’s participation in the Plan. The Participant understands that Data will be held only as long as is necessary to implement, administer and manage the Participant’s participation in the Plan. The Participant understands that the Participant may, at any time, view Data, request additional information about the storage and processing of Data, require any necessary amendments to Data or refuse or withdraw the consents herein, in any case without cost, by contacting in writing the Participant’s local human resources representative. Further, the Participant understands that the Participant is providing the consents herein on a purely voluntary basis. If the Participant does not consent, or if the Participant later seeks to revoke the Participant’s consent, the Participant’s employment and career with the Employer will not be affected; the only consequence of refusing or withdrawing the Participant’s consent is that the Company would not be able to grant this Award of Restricted Share Units or other Awards to the Participant or administer or maintain such Awards. Therefore, the Participant understands that refusing or withdrawing the Participant’s consent may affect the Participant’s ability to participate in the Plan. For more information on the consequences of the Participant’s refusal to consent or withdrawal of consent, the Participant understands that the Participant may contact the Participant’s local human resources representative.

E. Retirement. Notwithstanding paragraph 4 of the Terms and Conditions, if the Company receives an opinion of counsel that there has been a legal judgment and/or legal development in the Participant’s jurisdiction that would likely result in the favorable treatment applicable to the Restricted Share Units pursuant to paragraph 4 being deemed unlawful and/or discriminatory, then the Company will not apply the favorable treatment at the time of the Participant’s retirement, and the Restricted Share Units will be treated as set forth in the remaining provisions of paragraph 4 of the Terms and Conditions.

F. Language. If the Participant has received these Award Terms, or any other document related to this Award of Restricted Share Units and/or the Plan translated into a language other than English and if the meaning of the translated version is different than the English version, the English version will control.

G. Insider Trading Restrictions/Market Abuse Laws. The Participant acknowledges that, depending on his or her country, the Participant may be subject to insider trading restrictions and/or market abuse laws, which may affect his or her ability to acquire or sell Shares or rights to Shares under the

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Plan during such times as the Participant is considered to have “inside information” regarding the Company (as defined by applicable laws in his or her country). Any restrictions under these laws or regulations are separate from and in addition to any restrictions that may be imposed under any applicable Company insider trading policy. The Participant acknowledges that it is his or her responsibility to comply with any applicable restrictions, and the Participant should consult his or her personal advisor on this matter.

H. Foreign Asset/Account Reporting Requirements, Exchange Controls and Tax Requirements. The Participant acknowledges that his or her country may have certain foreign asset and/or account reporting requirements and exchange controls which may affect his or her ability to acquire or hold Shares under the Plan or cash received from participating in the Plan (including from any dividends received or sale proceeds arising from the sale of Shares) in a brokerage or bank account outside his or her country. The Participant understands that he or she may be required to report such accounts, assets or transactions to the tax or other authorities in his or her country. The Participant also may be required to repatriate sale proceeds or other funds received as a result of the Participant’s participation in the Plan to his or her country through a designated bank or broker and/or within a certain time after receipt. The Participant acknowledges that it is his or her responsibility to be compliant with all such requirements, and that the Participant should consult his or her personal legal and tax advisors, as applicable, to ensure the Participant’s compliance.

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APPENDIX B

TO THE ALCOA, INC.

2013 Stock Incentive Plan

Terms and Conditions for Restricted Share Units

For Non-U.S. Participants

Capitalized terms used but not defined in this Appendix B have the meanings set forth in the Plan and the Terms and Conditions for Restricted Share Units (the “Terms and Conditions”).

Terms and Conditions

This Appendix B includes special terms and conditions that govern Restricted Share Units if the Participant resides and/or works in one of the countries listed below.

If the Participant is a citizen or resident of a country other than the country in which the Participant is currently residing and/or working, or if the Participant transfers to another country after the grant of Restricted Share Units or is considered a resident of another country for local law purposes, the Committee shall, in its discretion, determine to what extent the special terms and conditions contained herein shall be applicable to the Participant.

Notifications

This Appendix B also includes information regarding exchange controls, tax and certain other issues of which the Participant should be aware with respect to participation in the Plan. The information is based on the securities, exchange control, tax and other laws in effect in the respective countries as of January 2016. Such laws are often complex and change frequently. As a result, the Company strongly recommends that the Participant not rely on the information in this Appendix B as the only source of information relating to the consequences of participation in the Plan because the information may be out of date at the time the Participant sells Shares acquired under the Plan.

In addition, the information contained herein is general in nature and may not apply to the Participant’s particular situation and the Company is not in a position to assure the Participant of any particular result. Accordingly, the Participant should seek appropriate professional advice as to how the relevant laws in the Participant’s country may apply to his or her situation.

Finally, if the Participant is a citizen or resident of a country other than the country in which the Participant currently works and/or resides, or if the Participant transfers to another country after the grant of the Restricted Share Unit, or is considered a resident of another country for local law purposes, the information contained herein may not be applicable to the Participant in the same manner.

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AUSTRALIA

Notifications

Exchange Control Information.

Exchange control reporting is required for cash transactions exceeding A$10,000 and for international fund transfers. If an Australian bank is assisting with the transaction, the bank will file the report on the Participant’s behalf.

Tax Information.

The Plan is a plan to which Subdivision 83A-C of the Income Tax Assessment Act 1997 (Cth) applies (subject to conditions in the Act).

BELGIUM

Notifications

Foreign Asset/Account Reporting Information.

If the Participant is a Belgian resident, the Participant is required to report any bank accounts opened and maintained outside of Belgium (e.g., brokerage accounts opened in connection with the Plan) on his or her annual tax return. In a separate report, the Participant is required to provide the National Bank of Belgium with certain details regarding such foreign accounts (including the account number, bank name and country in which any such account was opened). This report, as well as additional information on how to complete it, can be found on the website of the National Bank of Belgium, www.nbb.be, under Kredietcentrales / Centrales des crédits caption. The Participant should consult with his or her personal tax advisor to determine his or her personal reporting obligations.

BRAZIL

Terms and Conditions

Compliance with Law.

By accepting the Restricted Share Units, the Participant acknowledges that he or she agrees to comply with applicable Brazilian laws and to pay any and all applicable taxes associated with the vesting of the Restricted Share Units, the sale of the Shares acquired under the Plan and the receipt of any dividends.

Acknowledgement of Nature of the Grant.

This provision supplements paragraph C “Nature of Award” of Appendix A:

By accepting the Restricted Share Units, the Participant agrees that he or she is making an investment decision, the Shares will be issued to the Participant only if the vesting conditions are met and any necessary services are rendered by the Participant over the vesting period, and the value of the underlying Shares is not fixed and may increase or decrease in value over the vesting period without compensation to the Participant.

Notifications

Exchange Control Information.

If the Participant is a resident of or domiciled in Brazil, he or she will be required to submit an annual declaration of assets and rights held outside of Brazil to the Central Bank of Brazil if the aggregate value of the assets and rights is equal to or greater than US$100,000. If such amount exceeds US$100,000,000, the declaration must be submitted quarterly. Assets and rights that must be reported include Shares acquired under the Plan.

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Tax on Financial Transactions (IOF).

Repatriation of funds (e.g., sale proceeds) into Brazil and the conversion of USD into BRL associated with such fund transfers may be subject to the Tax on Financial Transactions. It is the Participant’s responsibility to comply with any applicable Tax on Financial Transactions arising from the Participant’s participation in the Plan. The Participant should consult with his or her personal tax advisor for additional details.

CANADA

Terms and Conditions

Award Settled Only in Shares.

Notwithstanding any discretion in the Plan, the Award of Restricted Share Units shall be settled in Shares only. The Participant is not entitled to receive a cash payment pursuant to the Award.

Termination of Service.

The following provision replaces paragraph A “Termination” of Appendix A:

For purposes of the Restricted Share Units, the Participant’s employment relationship will be considered terminated (regardless of the reason for such termination and whether or not later found to be invalid or in breach of Canadian laws or the terms of the Participant’s employment agreement, if any) effective as of the date that is the earlier of (i) the date of the Participant’s termination, (ii) the date the Participant receives notice of termination, or (iii) the date the Participant is no longer actively providing service and will not be extended by any notice period (e.g., active service would not include any contractual notice period or any period of “garden leave” or similar period mandated under Canadian laws or the terms of the Participant’s employment agreement, if any). Unless otherwise expressly provided in these Award Terms or determined by the Company, the Participant’s right to vest in the Restricted Share Units, if any, will terminate on such date. The Committee shall have the exclusive discretion to determine when the Participant is no longer actively providing service for purposes of the Restricted Share Unit (including whether the Participant may still be considered to be providing services while on a leave of absence).

The Following Provisions Apply for Participants Resident in Quebec:

Consent to Receive Information in English.

The Participant acknowledges that it is the express wish of the parties that these Award Terms, as well as all documents, notices and legal proceedings entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be written in English.

Les parties reconnaissent avoir exigé la rédaction en anglais de Conditions d’attribution, ainsi que de tous documents, avis et procédures judiciaires, exécutés, donnés ou intentés en vertu de, ou liés directement ou indirectement à, la présente convention.

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Authorization to Release and Transfer Necessary Personal Information.

The following provision supplements paragraph D “Data Privacy” of Appendix A:

The Participant hereby authorizes the Company and the Company’s representatives to discuss with and obtain all relevant information from all personnel, professional or not, involved in the administration and operation of the Plan. The Participant further authorizes the Company, any Subsidiary and the administrator of the Plan to disclose and discuss the Plan with their advisors. The Participant further authorizes the Company and any Subsidiary to record such information and to keep such information in the Participant’s Employee file.

Notifications

Securities Law Information.

The Participant acknowledges that he or she is permitted to sell the Shares acquired under the Plan through the designated broker appointed by the Company, provided the sale of the Shares takes place outside of Canada through facilities of a stock exchange on which the Shares are listed (i.e., the NYSE).

Foreign Asset/Account Reporting Information.

Canadian residents are required to report to the tax authorities any foreign property on form T1135 (Foreign Income Verification Statement) if the total cost of the foreign property exceeds C$100,000 at any time in the year. The form must be filed by April 30 of the following year. Restricted Share Units must be reported—generally at a nil cost—if the C$100,000 cost threshold is exceeded because of other foreign property the Participant holds. If Shares are acquired, their cost generally is the adjusted cost base (“ACB”) of the Shares. The ACB would normally equal the fair market value of the Shares at vesting, but if the Participant owns other Shares, this ACB may have to be averaged with the ACB of the other Shares. The Participant should consult with his or her personal legal advisor to ensure compliance with applicable reporting obligations.

CHINA

Terms and Conditions

The following terms and conditions will apply to Participants who are subject to exchange control restrictions and regulations in the People’s Republic of China (“PRC”), including the requirements imposed by the State Administration of Foreign Exchange (“SAFE”), as determined by the Company in its sole discretion:

Termination of Employment.

Due to legal restrictions in China, the Participant agrees that the Company reserves the right to require the sale of any Shares acquired at vesting of the Restricted Share Units upon the termination of the Participant’s employment for any reason. The Participant hereby authorizes the sale of all Shares issued to the Participant as soon as administratively practicable after the applicable termination of employment and pursuant to this authorization. The Participant further agrees that the Company is authorized to instruct its designated broker to assist with the mandatory sale of such Shares and the Participant expressly authorizes the Company’s designated broker to complete the sale of such Shares. The Participant acknowledges that the Company’s designated broker is under no obligation to arrange for the sale of the Shares at any particular price. Upon the sale of Shares, the Participant will receive the sale proceeds less any amounts necessary to satisfy Tax-Related Items and applicable transaction fees or commissions. Due to currency exchange conversion rate fluctuation between the applicable vesting date of the Restricted Share Units and (if later) the date on which the Shares are sold, the amount of sale

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proceeds may be more or less than the fair market value of the Shares on the applicable vesting date (which is the relevant amount for purposes of calculating amounts necessary to satisfy applicable Tax-Related Items).

Exchange Control Restrictions.

The Participant understands and agrees that, pursuant to local exchange control requirements, the Participant will be required to immediately repatriate any cash payments or proceeds obtained with respect to participation in the Plan to the PRC. The Participant further understands that such repatriation of any cash payments or proceeds may need to be effectuated through a special exchange control account established by the Company or any Subsidiary, and the Participant hereby consents and agrees that any payment or proceeds may be transferred to such special account prior to being delivered to the Participant.

Any payment or proceeds may be paid to the Participant in U.S. dollars or local currency at the Company’s discretion. If the payments or proceeds are paid to the Participant in U.S. dollars, the Participant will be required to set up a U.S. dollar bank account in the PRC so that the payments or proceeds may be deposited into this account. If the payments or proceeds are paid to the Participant in local currency, the Company is under no obligation to secure any particular exchange conversion rate and the Company may face delays in converting the payments or proceeds to local currency due to exchange control restrictions.

The Participant further agrees to comply with any other requirements that may be imposed by the Company in the future to facilitate compliance with exchange control requirements in the PRC.

CZECH REPUBLIC

Notifications

Foreign Asset/Account Reporting Information.

Upon request of the Czech National Bank, the Participant may be required to file a report in connection with the Restricted Share Units and the opening and maintenance of a foreign account. However, because exchange control regulations change frequently and without notice, the Participant should consult with his or her personal advisor before accepting the Restricted Share Units and before opening any foreign accounts in connection with the Restricted Share Units to ensure compliance with current regulations. The Participant is solely responsible for complying with applicable Czech exchange control laws.

FINLAND

There are no country-specific provisions.

FRANCE

Terms and Conditions

Language Consent.

By accepting the Restricted Share Units and the Award Terms, which provide for the terms and conditions of the Restricted Share Units, the Participant confirms having read and understood the documents relating to this Award (the Plan and the Award Terms, including the Appendices) which were provided to the Participant in English. The Participant accepts the terms of those documents accordingly.

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En acceptant l’Attribution d’Actions Attribuées et ce Contrat d’Attribution qui contient les termes et conditions des Actions Attribuées, le Participant confirme avoir lu et compris les documents relatifs à cette attribution (le Plan et le Contrat d’Attribution, ainsi que les Annexes) qui ont été transmis au Participant en langue anglaise. Le Participant accepte ainsi les conditions et termes de ces documents.

Notifications

Foreign Asset/Account Reporting Information.

If the Participant is a French resident, he or she must declare all foreign bank and brokerage accounts (including any accounts that were opened or closed during the tax year) on an annual basis on form No. 3916, together with the Participant’s income tax return. Failure to complete this reporting triggers penalties for the Participant. Further, French residents with foreign account balances exceeding €1,000,000 may have additional monthly reporting obligations.

GERMANY

Notifications

Exchange Control Information.

Cross-border payments in excess of €12,500 must be reported monthly to the German Federal Bank (Bundesbank). If the Participant makes or receives a payment in excess of this amount, the Participant must report the payment to Bundesbank electronically using the “General Statistics Reporting Portal” (“Allgemeines Meldeportal Statistik”) available via Bundesbank’s website (www.bundesbank.de).

GUINEA

Terms and Conditions

Award Settlement.

Notwithstanding any provision in the Award Terms to the contrary, if deemed by the Company to be necessary for regulatory reasons, the Company reserves the right to settle Restricted Share Units by payment in cash or its equivalent of an amount equal in value to the Shares subject to the vested Restricted Share Units.

HUNGARY

There are no country-specific provisions.

ICELAND

Terms and Conditions

Award Settlement.

Notwithstanding any provision in the Award Terms to the contrary, if deemed by the Company to be necessary for regulatory reasons, the Company reserves the right to settle Restricted Share Units by payment in cash or its equivalent of an amount equal in value to the Shares subject to the vested Restricted Share Units.

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ITALY

Terms and Conditions

Authorization to Release and Transfer Necessary Personal Information. The following provision replaces in its entirety paragraph D. “Data Privacy” of Appendix A:

The Participant understands that the Employer and/or the Company may hold certain personal information about the Participant, including, but not limited to, the Participant’s name, home address and telephone number, date of birth, social security number (or any other social or national identification number), salary, nationality, job title, number of Shares held and the details of all Restricted Share Units or any other entitlement to Shares awarded, cancelled, exercised, vested, unvested or outstanding (the “Data”) for the exclusive purpose of implementing, administering and managing the Participant’s participation in the Plan. The Participant is aware that providing the Company with the Participant’s Data is necessary for the performance of the Award Terms and that the Participant’s refusal to provide such Data would make it impossible for the Company to perform its contractual obligations and may affect the Participant’s ability to participate in the Plan.

The Controller of personal data processing is Alcoa, Inc., 390 Park Avenue, New York City, New York, 10022 U.S.A., and, pursuant to D.lgs 196/2003, its representative in Italy is Fusina Rolling Srl, Piazza Giuseppe Missori n.2, Milano, 20122 Italy. The Participant understands that the Data may be transferred to the Company or any of its Subsidiaries, or to any third parties assisting in the implementation, administration and management of the Plan, including any transfer required to Merrill Lynch with whom Shares acquired pursuant to the vesting of the Restricted Share Units or cash from the sale of such Shares may be deposited. Furthermore, the recipients that may receive, possess, use, retain and transfer such Data for the above mentioned purposes may be located in Italy or elsewhere, including outside of the European Union and the recipients’ country (e.g., the United States) may have different data privacy laws and protections than the Participant’s country. The processing activity, including the transfer of the Participant’s personal data abroad, outside of the European Union, as herein specified and pursuant to applicable laws and regulations, does not require the Participant’s consent thereto as the processing is necessary for the performance of contractual obligations related to the implementation, administration and management of the Plan. The Participant understands that Data processing relating to the purposes above specified shall take place under automated or non-automated conditions, anonymously when possible, that comply with the purposes for which Data are collected and with confidentiality and security provisions as set forth by applicable laws and regulations, with specific reference to D.lgs. 196/2003.

The Participant understands that Data will be held only as long as is required by law or as necessary to implement, administer and manage the Participant’s participation in the Plan. Participant understands that pursuant to art.7 of D.lgs 196/2003, the Participant has the right, including but not limited to, access, delete, update, request the rectification of the Data and cease, for legitimate reasons, the Data processing. Furthermore, the Participant is aware that the Data will not be used for direct marketing purposes. In addition, the Data provided can be reviewed and questions or complaints can be addressed by contacting a local human resources representative.

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Plan Document Acknowledgement

By accepting the Restricted Share Units, the Participant acknowledges that the Participant has received a copy of the Plan and the Award Terms and has reviewed the Plan and the Award Terms, including the Appendices, in their entirety and fully understands and accepts all provisions of the Plan and the Award Terms, including the Appendices. The Participant further acknowledges that the Participant has read and specifically and expressly approves the following paragraphs of the Award Terms: paragraphs 2-5: Vesting and Payment; paragraph 15: Repayment and Forfeiture; paragraph 16: Stock Exchange Requirements and Applicable Laws; paragraph 19: Severability and Judicial Modification; paragraph 21: Appendices; paragraph 22: Imposition of Other Requirements; paragraph 26: Governing Law and Venue; paragraph A of Appendix A: Termination; paragraph C of Appendix A: Nature of Award and the Data Privacy provisions above.

Notifications

Foreign Asset/Account Reporting Information.

Italian residents who, during the fiscal year, hold investments abroad or foreign financial assets (e.g., cash, Shares) which may generate income taxable in Italy are required to report such on their annual tax returns (UNICO form, RW Schedule) or on a special form if no tax return is due. The same reporting obligations apply to Italian residents who, even if they do not directly hold investments abroad or foreign financial assets (e.g., cash, Shares), are beneficial owners of the investment pursuant to Italian money laundering provisions.

Tax on Foreign Financial Assets.

The value of the financial assets held outside of Italy by Italian residents is subject to a foreign asset tax at an annual rate of 2 per thousand (0.2%) . The taxable amount will be the fair market value of the financial assets (including Shares) assessed at the end of the calendar year. No tax payment duties arise if the amount of the foreign assets tax calculated on all financial assets held abroad does not exceed €12.

JAMAICA

There are no country-specific provisions.

JAPAN

Notifications

Foreign Asset/Account Reporting Information.

The Participant will be required to report details of any assets held outside of Japan as of December 31 (including any Shares acquired under the Plan) to the extent such assets have a total net fair market value exceeding ¥50,000,000. Such report will be due by March 15 of the following year. The Participant should consult with his or her personal tax advisor as to whether the reporting obligation applies to the Participant and whether the Participant will be required to report details of any outstanding Restricted Share Units, Shares or cash held by the Participant in the report.

KOREA

Notifications

Exchange Control Information.

Exchange control laws require Korean residents who realize US$500,000 or more from the sale of Shares or the receipt of dividends in a single transaction to repatriate the proceeds back to Korea within three years of the sale/receipt.

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Foreign Asset/Account Reporting Information.

If the Participant is a Korean resident, the Participant must declare all of his or her foreign financial accounts (including any brokerage account) to the Korean tax authority and file a report with respect to such accounts if the value of such accounts exceeds KRW 1 billion (or an equivalent amount in foreign currency). The Participant should consult with his or her personal tax advisor as to whether the reporting obligation applies.

MEXICO

Terms and Conditions

Policy Statement.

The Award of Restricted Share Units is a unilateral and discretionary award and, therefore, the Company reserves the absolute right to amend it and discontinue it at any time without any liability.

The Company, with offices at 390 Park Avenue, New York City, New York, 10022 U.S.A., is solely responsible for the administration of the Plan, and participation in the Plan and the Award of the Restricted Share Units does not, in any way, establish an employment relationship between the Participant and the Company since the Participant is participating in the Plan on a wholly commercial basis and the sole employer is a Mexican Subsidiary, nor does it establish any rights between the Participant and the Employer.

Plan Document Acknowledgment.

By accepting the Restricted Share Units, the Participant acknowledges that he or she has received copies of the Plan, has reviewed the Plan and the Award Terms in their entirety, and fully understands and accepts all provisions of the Plan and the Award Terms, including the Appendices.

In addition, the Participant expressly approves that: (i) participation in the Plan does not constitute an acquired right; (ii) the Plan and participation in the Plan is offered by the Company on a wholly discretionary basis; (iii) participation in the Plan is voluntary; and (iv) neither the Company nor any Subsidiary is responsible for any decrease in the value of the Shares acquired upon vesting of the Restricted Share Units.

Finally, the Participant hereby declares that he or she does not reserve any action or right to bring any claim against the Company for any compensation or damages as a result of his or her participation in the Plan and therefore grant a full and broad release to the Employer, the Company and its other Subsidiaries with respect to any claim that may arise under the Plan.

Spanish Translation

Declaración de Política.

El Otorgamiento de Unidades de Acciones Restringidas es un otorgamiento unilateral y discrecional y, por lo tanto, la Compañía se reserva el derecho absoluto de modificar y discontinuar el Plan en cualquier tiempo, sin responsabilidad alguna.

La Compañía, con oficinas registradas ubicadas en 390 Park Avenue, New York, New York 10022 U.S.A., es únicamente responsable de la administración del Plan, y la participación en el Plan y el Otorgamiento de Unidades de Acciones Restringidas no establecen, de forma alguna, una relación

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de trabajo entre el Participante y la Compañía, ya que el Participante está participando en el Plan sobre una base comercial y el único patrón es una Afiliada Mexicana y tampoco establece ningún derecho entre usted y el Patrón.

Reconocimiento del Documento del Plan.

Al aceptar el Otorgamiento de las Unidades de Acciones Restringidas, el Participante reconoce que ha recibido copias del Plan, ha revisado el Plan y los Términos del Otorgamiento en su totalidad y que entiende y acepta completamente todas las disposiciones contenidas en el Plan y en los Términos del Otorgamiento, incluyendo los Apéndices.

Adicionalmente, el Participante aprueba expresamente que (i) la participación en el Plan no constituye un derecho adquirido; (ii) el Plan y la participación en el Plan se ofrecen por la Compañía de forma enteramente discrecional; (iii) la participación en el Plan es voluntaria; y (iv) la Compañía, cualquier Filial y el Patrón no son responsables por cualquier disminución en el valor de las Acciones adquiridas al momento de tener derecho en relación con las Unidades de Acciones Restringidas.

Finalmente, el Participante declara que no se reserva ninguna acción o derecho para interponer una reclamación o demanda en contra de la Compañía por compensación, daño o perjuicio alguno como resultado de su participación en el Plan y, por lo tanto, otorga el más amplio y total finiquito al Patrón, la Compañía y sus Filiales en relación con cualquier reclamación demanda que pudiera surgir de conformidad con el Plan.

NETHERLANDS

There are no country-specific provisions.

NORWAY

There are no country-specific provisions.

POLAND

Notifications

Exchange Control Information.

Polish residents holding foreign securities (including Shares) and maintaining accounts abroad (including any brokerage account) must report information to the National Bank of Poland on transactions and balances of the securities and cash deposited in such accounts if the value of such securities and cash (calculated individually or together with all other assets/liabilities held abroad) exceeds a specified threshold (currently PLN 7,000,000). If required, the reports are due on a quarterly basis on special forms available on the website of the National Bank of Poland. Further, any transfer of funds in excess of a specified threshold (currently €15,000) must be effected through a bank account in Poland. The Participant should maintain evidence of such foreign exchange transactions for five (5) years, in case of a request for their production by the National Bank of Poland.

B-10

RUSSIA

Terms and Conditions

U.S. Transaction.

The Participant understands that the grant of the Restricted Share Units is a right to receive Shares if certain conditions are met and that the offer is made by the Company in the United States. Upon vesting of the Restricted Share Units, any Shares to be issued to the Participant shall be delivered to the Participant through a brokerage account in the United States. The Participant is not permitted to sell Shares directly to other Russian legal entities or residents.

Notifications

Exchange Control Information.

Upon the sale of Shares acquired under the Plan, the Participant must repatriate the proceeds of the sale back to Russia within a reasonably short time after receipt. The Participant may remit proceeds to Participant’s foreign currency account at an authorized bank in Russia or in a foreign bank account opened in accordance with Russian exchange control laws. The Participant is encouraged to contact the Participant’s personal advisor before remitting the Participant’s sale proceeds to Russia.

Securities Law Information.

The grant of the Restricted Share Units and the distribution of the Plan and all other materials the Participant may receive regarding participation in the Plan do not constitute an offering or the advertising of securities in Russia. The issuance of Shares pursuant to the Plan has not and will not be registered in Russia and, therefore, the Shares may not be used for an offering or public circulation in Russia. In no event will Shares be delivered to the Participant in Russia; all Shares acquired under the Plan will be maintained on the Participant’s behalf in the United States.

Data Privacy Acknowledgement.

The Participant hereby acknowledges that he or she has read and understands the terms regarding collection, processing and transfer of Data contained in Appendix A to the Award Terms and by participating in the Plan, the Participant agrees to such terms. In this regard, upon request of the Company or the Employer, the Participant agrees to provide an executed data privacy consent form to the Company or the Employer (or any other agreements or consents that may be required by the Company or the Employer) that the Company and/or the Employer may deem necessary to obtain under the data privacy laws of Russia, either now or in the future.

Labor Law Information.

If the Participant continues to hold Shares after involuntary termination, the Participant may not be eligible to receive unemployment benefits in Russia.

SOUTH AFRICA

Notifications

Tax Reporting Information.

By accepting the Restricted Share Units, the Participant agrees to notify the Employer of the amount of income realized at vesting of the Restricted Share Units. If the Participant fails to advise the Employer of the income at vesting, the Participant may be liable for a fine. The Participant will be responsible for paying any difference between the actual tax liability and the amount withheld.

B-11

Exchange Control Information.

The Participant is solely responsible for complying with applicable South African exchange control regulations. Since the exchange control regulations change frequently and without notice, the Participant should consult his or her legal advisor prior to the acquisition or sale of Shares acquired under the Plan to ensure compliance with current regulations. As it is the Participant’s responsibility to comply with South African exchange control laws, neither the Company, the Employer nor any other Subsidiary will be liable for any fines or penalties resulting from the Participant’s failure to comply with applicable laws.

SPAIN

Terms and Conditions

No Entitlement for Claims or Compensation.

The following provisions supplement paragraph A “Termination” of Appendix A.

By accepting the Restricted Share Units, the Participant consents to participation in the Plan and acknowledges that Participant has received a copy of the Plan.

The Participant understands and agrees that, as a condition of the grant of the Restricted Share Units, if the Participant’s employment terminates, unless otherwise provided in the Award Terms or by the Company, any unvested Restricted Share Units shall be forfeited without entitlement to the underlying Shares or to any amount as indemnification in the event of a termination, including, but not limited to: resignation, disciplinary dismissal adjudged to be with cause, disciplinary dismissal adjudged or recognized to be without cause, individual or collective layoff on objective grounds, whether adjudged to be with cause or adjudged or recognized to be without cause, material modification of the terms of employment under Article 41 of the Workers’ Statute, relocation under Article 40 of the Workers’ Statute, Article 50 of the Workers’ Statute, unilateral withdrawal by the Employer, and under Article 10.3 of Royal Decree 1382/1985.

The Participant understands that the Company has unilaterally, gratuitously and in its sole discretion decided to grant Restricted Share Units under the Plan to individuals who may be Employees of the Company or a Subsidiary. The decision is limited and entered into based upon the express assumption and condition that any Restricted Share Units will not economically or otherwise bind the Company or any Subsidiary, including the Employer, on an ongoing basis, other than as expressly set forth in the Award Terms. Consequently, the Participant understands that the Restricted Share Units are granted on the assumption and condition that the Restricted Share Units shall not become part of any employment or service agreement (whether with the Company or any Subsidiary, including the Employer) and shall not be considered a mandatory benefit, salary for any purpose (including severance compensation) or any other right whatsoever. Furthermore, the Participant understands and freely accepts that there is no guarantee that any benefit whatsoever shall arise from the grant of Restricted Share Units, which is gratuitous and discretionary, since the future value of the Restricted Share Units and the underlying Shares is unknown and unpredictable. The Participant also understands that the grant of Restricted Share Units would not be made but for the assumptions and conditions set forth hereinabove; thus, the Participant understands, acknowledges and freely accepts that, should any or all of the assumptions be mistaken or any of the conditions not be met for any reason, the Restricted Share Unit and any right to the underlying Shares shall be null and void.

B-12

Notifications

Securities Law Information.

No “offer of securities to the public”, as defined under Spanish law, has taken place or will take place in the Spanish territory with respect to the Restricted Share Units. No public offering prospectus has been nor will be registered with the Comisión Nacional del Mercado de Valores (Spanish Securities Exchange Commission) (“CNMV”). Neither the Plan nor the Award Terms constitute a public offering prospectus and they have not been, nor will they be, registered with the CNMV.

Exchange Control Information.

It is the Participant’s responsibility to comply with exchange control regulations in Spain. The Participant must declare the acquisition of Shares for statistical purposes to the Spanish Direccion General de Comercio e Inversiones (the “DGCI”) of the Ministry of Economy and Competitiveness. In addition, the Participant must also file a Form D-6 with the Directorate of Foreign Transaction each January in which the Shares are owned. The sale of Shares also must be declared on Form D-6 filed with the DGCI in January, unless the sale proceeds exceed the applicable threshold (currently €1,502,530), in which case, the filing is due within one month after the sale.

Foreign Asset/Account Reporting Information.

The Participant is required to declare electronically to the Bank of Spain any securities accounts (including brokerage accounts held abroad), as well as the Shares held in such accounts if the value of the transactions during the prior tax year or the balances in such accounts as of December 31 of the prior tax year exceed €1,000,000.

Further, to the extent that the Participant holds Shares and/or has bank accounts outside Spain with a value in excess of €50,000 (for each type of asset) as of December 31, the Participant will be required to report information on such assets on his or her tax return (tax form 720) for such year. After such Shares and/or accounts are initially reported, the reporting obligation will apply for subsequent years only if the value of any previously-reported Shares or accounts increases by more than €20,000 or if the Participant sells or otherwise disposes of any previously-reported Shares or accounts.

SURINAME

Terms and Conditions

Award Settlement.

Notwithstanding any provision in the Award Terms to the contrary, if deemed by the Company to be necessary for regulatory reasons, the Company reserves the right to settle Restricted Share Units by payment in cash or its equivalent of an amount equal in value to the Shares subject to the vested Restricted Share Units.

SWITZERLAND

Notifications

Securities Law Information.

The grant of the Restricted Share Units under the Plan is considered a private offering in Switzerland and is, therefore, not subject to registration in Switzerland. Neither this document nor any other material related to the Restricted Share Units constitutes a prospectus as such term is understood pursuant to Article 652a of the Swiss Code of Obligations, and neither this document nor any other materials related to the Restricted Share Units may be publicly distributed or otherwise made publicly available in Switzerland.

B-13

UNITED KINGDOM

Terms and Conditions

Responsibility for Taxes.

The following supplements paragraph B “Responsibility for Taxes” of Appendix A:

The Participant shall pay to the Company or the Employer any amount of income tax that the Company or the Employer may be required to account to Her Majesty’s Revenue & Customs (“HMRC”) with respect to the event giving rise to the income tax (the “Taxable Event”) that cannot be satisfied by the means described in paragraph B of Appendix A. If payment or withholding of the income tax due is not made within ninety (90) days of the end of the U.K. tax year in which the Taxable Event occurs or such other period as required under U.K. law (the “Due Date”), the Participant agrees that the amount of any uncollected income tax shall constitute a loan owed by the Participant to the Employer, effective on the Due Date. The Participant agrees that the loan will bear interest at the then-current HMRC Official Rate, it will be immediately due and repayable, and the Company or the Employer may recover it at any time thereafter by any of the means referred to in paragraph B of Appendix A. If the Participant fails to comply with his or her obligations in connection with the income tax as described in this section, the Company may refuse to deliver the Shares acquired under the Plan.

Notwithstanding the foregoing, if the Participant is a Director or executive officer of the Company (within the meaning of
Section 13(k) of the U.S. Securities Exchange Act of 1934), the Participant shall not be eligible for a loan from the Company to cover income tax. In the event that the Participant is a Director or executive officer and income tax is not collected from or paid by the Participant by the Due Date, the amount of any uncollected income tax may constitute a benefit to the Participant on which additional income tax and National Insurance contributions (“NICs”) may be payable. The Participant will be responsible for reporting and paying any income tax due on this additional benefit directly to HMRC under the self-assessment regime and for reimbursing the Company or the Employer for the value of any employee NICs due on this additional benefit, which the Company or the Employer may recover by any of the means referred to in paragraph B of Appendix A.

B-14

EX-10.(D)

Exhibit 10(d)

ALCOA INC.

2013 ALCOA STOCK INCENTIVE PLAN

TERMS AND CONDITIONS FOR STOCK OPTION AWARDS

Effective July 22, 2016

These terms and conditions, including Appendices A and B attached hereto, (the “Award Terms”) are authorized by the Compensation and Benefits Committee of the Board of Directors. They are deemed to be incorporated into and form a part of every Stock Option award issued on or after July 22, 2016 under the 2013 Alcoa Stock Incentive Plan, as amended and restated and as may be further amended from time to time (the “Plan”).

Terms that are defined in the Plan have the same meanings in the Award Terms.

General Terms and Conditions

1. Stock Option awards are subject to the terms and conditions set forth in the Participant’s account at Merrill Lynch’s OnLine^® website www.benefits.ml.com, the provisions of the Plan and the Award Terms. If the Plan and the Award Terms are inconsistent, the provisions of the Plan will govern. Interpretations of the Plan and the Award Terms by the Committee are binding on the Participant and the Company.

2. The exercise price (or option price) of a stock option is 100% of the fair market value per Share on the date of grant, unless the Participant’s account at Merrill Lynch’s OnLine^® website www.benefits.ml.com, specifies a higher exercise price.

3. The expiration date of a Stock Option is ten years after the date of grant.

Vesting and Exercisability

4. Stock Options vest as to one-third of the Award on the first anniversary of the grant date, as to one-third of the Award on the second anniversary of the grant date and as to one-third of the Award on the third anniversary of the grant date.

5. Except as provided in paragraph 7, once vested, a Stock Option may be exercised until its expiration date, as long as the Participant remains an active employee of the Company or a Subsidiary. As an administrative matter, the vested portion of this Stock Option may be exercised only until the close of the New York Stock Exchange on the expiration date or such earlier termination date set forth in paragraph 7 or, if such date is not a business day on the New York Stock Exchange, the last business day before such date. Any later attempt to exercise the Stock Option will not be honored. The Participant is solely responsible for any election to exercise the Stock Option, and the Company has no obligation to provide notice to the Participant of any matter, including, but not limited to, the date the Stock Option terminates. Neither the Company nor any Subsidiary has any liability in the event of the Participant’s failure to timely exercise any vested Stock Option prior to its expiration.

6. Except as provided in paragraph 7:

• as a condition to exercise of a Stock Option, a Participant must remain an active employee of the Company or a Subsidiary until the date the option vests, and if a Stock Option vests as to some but not all Shares covered by the Award, the Participant must be an active employee on the date the relevant portion of the Award vests; and

• if the Participant’s employment with the Company (including its Subsidiaries) terminates prior to the vesting date of the Stock Option (or relevant option portion), the Stock Option (or relevant option portion) is forfeited and is automatically canceled.

7. The following are exceptions to the vesting and exercisability rules:

• Death or Disability: a Stock Option held by a Participant, who dies while an Employee or who is permanently and totally disabled while an Employee, is not forfeited but vests in accordance with the original vesting date. In the case of a Participant who dies while an Employee, any Stock Option that is vested must be exercised by a legal representative or beneficiary on the earlier of five years from the date of death or the original expiration date of the Stock Option. In the case of a Participant who is permanently and totally disabled while an Employee, any Stock Option that is vested must be exercised on the earlier of five years from the date of such disability or the original expiration date of the Stock Option.

A Participant is deemed to be permanently and totally disabled if the Participant is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than 12 months. A Participant shall not be considered to be permanently and totally disabled unless the Participant furnishes proof of the existence thereof in such form and manner, and at such times, as the Company may require. In the event of a dispute, the determination whether a Participant is permanently and totally disabled will be made by the Committee or its delegate.

• Change in Control: a Stock Option vests if a Replacement Award is not provided following certain Change in Control events, as described in the Plan.

• Retirement: a Stock Option is not forfeited if it is held by a Participant who retires at least 6 months after the grant date under an applicable Company or Subsidiary plan (or if there is no Company or Subsidiary plan, a government retirement plan) in which the Participant is eligible for an immediate payment of a retirement benefit. In that event, any unvested portion of the Stock Option vests in accordance with the original vesting schedule of the grant, and any Stock Option that is vested will be exercisable until the earlier of five years from the date of retirement or the original expiration date of the Stock Option.

• Divestiture: if a Stock Option is held by a Participant who is to be terminated from employment with the Company or a Subsidiary as a result of a divestiture of a business or a portion of a business of the Company and the Participant either becomes an employee of (or is leased or seconded to) the entity acquiring the business on the date of the closing, or the Participant is not offered employment with the entity acquiring the business and is

2

terminated by the Company or a Subsidiary within 90 days of the closing of the sale, then, at the discretion of the Chief Executive Officer of the Company:

• Any unvested portion of the Stock Option will continue to vest under the original vesting schedule and once vested, will be exercisable until the earlier of the original expiration date of the Stock Option or two years from the date the Participant’s employment with the Company or a Subsidiary has been terminated; and

• Any vested portion of the Stock Option will remain exercisable until the earlier of the original expiration date of the Stock Option or two years from the date the Participant’s employment with the Company or a Subsidiary has been terminated.

For purposes of this paragraph, employment by “the entity acquiring the business” includes employment by a subsidiary or affiliate of the entity acquiring the business; and “divestiture of a business” means the sale of assets or stock resulting in the sale of a going concern. “Divestiture of a business” does not include a plant shut down or other termination of a business.

• Termination of Employment: if a Stock Option is held by a Participant whose employment with the Company (including its Subsidiaries) is terminated for any reason other than those described above in this paragraph 7, any unvested Stock Options will be forfeited on the date of termination of employment and any vested Stock Options will remain exercisable for 90 days after the date employment is terminated.

Option Exercise and Payment of Exercise Price

8. A vested, exercisable option is exercised when a signed notification of exercise is received by Merrill Lynch’s OnLine^® website www.benefits.ml.com.

9. Payment in full of the exercise price of a Stock Option is due on the exercise date. Unless otherwise determined by the Company, payment of the option exercise price may be made:

• in cash (including a “broker-assisted cashless exercise” described in the next paragraph); or

• if permitted by the Company, by the delivery or presentation of Shares that have an aggregate fair market value on the date of exercise, which, together with any cash payment, equals or exceeds the Stock Option exercise price.

10. A Participant may elect to pay the cash exercise price of the option through a “broker-assisted cashless exercise,” using Merrill Lynch’s OnLine^® website www.benefits.ml.com. On or prior to the exercise date, the Participant must deliver the Participant’s instruction directing and obligating the broker to (a) sell Shares (or a sufficient portion of the Shares) acquired upon exercise of the option and (b) remit to the Company a sufficient portion of the sale proceeds to pay the entire exercise price and any tax withholding resulting from the exercise. Such proceeds are due not later than the third trading day after the exercise date.

11. Shares owned by a Participant include (a) those registered in the Participant’s name (or registered jointly with another person), (b) those held in a brokerage account owned by the

3

Participant individually or jointly with another person, and (c) those held in a trust, partnership, limited partnership or other entity for the benefit of the Participant individually (or for the benefit of the Participant jointly with another person). Notwithstanding the foregoing, Shares owned by a Participant do not include Shares held in any qualified plan, IRA or similar tax deferred arrangement or Shares that are otherwise subject to potential accounting limitations regarding their use in stock swap transactions. The Company may require verification or proof of ownership or length of ownership of any shares delivered in payment of the exercise price of an option.

Taxes

12. All taxes required to be withheld under applicable tax laws in connection with the Stock Option must be paid by the Participant immediately upon exercise (or at the time of any other relevant taxable event).

13. The Company may satisfy applicable tax withholding obligations by any of the means set forth in Section 15(l) of the Plan, except that unless otherwise determined by the Committee, if the Participant is subject to the short-swing profit rules of Section 16(b) of the Securities Exchange Act of 1934, as amended, Shares will be withheld from any Shares deliverable upon exercise only pursuant to the election of the Participant. Withholding taxes in the United States include applicable income taxes, federal and state unemployment compensation taxes and FICA/FUTA taxes.

14. The amount of taxes that may be paid by a Participant may be determined by applying the minimum rates or, to the extent permitted under applicable accounting principles, up to the maximum individual tax rate for the applicable tax jurisdiction required by applicable tax regulations.

15. The Participant acknowledges that neither the Company nor any Subsidiary has made any representation or given any advice to the Participant with respect to taxes.

Beneficiaries

16. If permitted by the Company, Participants will be entitled to designate one or more beneficiaries to receive all Stock Options that are unexercised at the time of the Participant’s death. All beneficiary designations will be on a beneficiary designation form approved for the Plan. Copies of the form are available from the Communications Center on Merrill Lynch’s Benefits OnLine^® www.benefits.ml.com.

17. Beneficiary designations on an approved form will be effective at the time received by Merrill Lynch’s OnLine^® website www.benefits.ml.com. A Participant may revoke a beneficiary designation at any time by written notice to Merrill Lynch’s OnLine^® website www.benefits.ml.com or by filing a new designation form. Any designation form previously filed by a Participant will be automatically revoked and superseded by a later-filed form.

18. A Participant will be entitled to designate any number of beneficiaries on the form, and the beneficiaries may be natural or corporate persons.

4

19. The failure of any Participant to obtain any recommended signature on the form will not prohibit the Company from treating such designation as valid and effective. No beneficiary will acquire any beneficial or other interest in any Stock Option prior to the death of the Participant who designated such beneficiary.

20. Unless the Participant indicates on the form that a named beneficiary is to receive unexercised options only upon the prior death of another named beneficiary, all beneficiaries designated on the form will be entitled and required to join in the exercise of the option. Unless otherwise indicated, all such beneficiaries will have an equal, undivided interest in all such Stock Options.

21. Should a beneficiary die after the Participant but before the option is exercised, such beneficiary’s rights and interest in the option award will be transferable by last will and testament of the beneficiary or the laws of descent and distribution. A named beneficiary who predeceases the Participant will obtain no rights or interest in a stock option award, nor will any person claiming on behalf of such individual. Unless otherwise specifically indicated by the Participant on the beneficiary designation form, beneficiaries designated by class (such as “children,” “grandchildren” etc.) will be deemed to refer to the members of the class living at the time of the Participant’s death, and all members of the class will be deemed to take “per capita.”

22. If a Participant does not designate a beneficiary or if the Company does not permit a beneficiary designation, the Stock Options that are unexercised at the time of death of the Participant will be transferred to the Participant’s legal heirs pursuant to the Participant’s last will and testament or by the laws of descent and distribution and may be exercised by the legal heirs as set forth in paragraph 7.

Transferable Options

23. Upon approval of, and subject to such requirements as may be imposed by, the Company, vested Stock Options may be transferred to one or more immediate family members, individually or jointly. A trust, each of whose beneficiaries is the Participant or an immediate family member, will be deemed to be a family member for purposes of these rules.

24. Any permitted transfer of Stock Options shall be effective on the date written notice thereof, on a form approved for this purpose, is received. Copies of the form are available from the Communications Center on Merrill Lynch’s Benefits OnLine^® website www.benefits.ml.com. As a condition to transfer, the Participant shall agree to remain responsible to pay the applicable taxes due in relation to the option. The Participant or the Participant’s estate will be required to provide sufficient evidence of ability to pay such taxes upon the Company’s request.

25. A transfer shall be irrevocable; no subsequent transfer by the transferee shall be effective. Notwithstanding the foregoing, a transferee shall be entitled to designate a beneficiary in accordance with the provisions of paragraphs 16 through 22 above. Except where a beneficiary has been designated, in the event of death of the transferee prior to option exercise, the transferee’s option will be transferable by last will and testament or the laws of descent and distribution.

5

26. Except as modified by the provisions of paragraphs 23 through 25, all terms applicable to option exercises by Participants are applicable to exercises by transferees. The Plan administrator may make and publish additional rules applicable to exercises by transferees not inconsistent with these provisions.

Adjustments

27. In the event of an Equity Restructuring, the Committee will equitably adjust the Stock Option as it deems appropriate to reflect the Equity Restructuring, which may include (i) adjusting the number and type of securities subject to the Stock Option; and (ii) adjusting the terms and conditions of the Stock Option, including the exercise price. The adjustments provided under this paragraph 27 will be nondiscretionary and final and binding on all interested parties, including the affected Participant and the Company; provided that the Committee will determine whether an adjustment is equitable.

Repayment/Forfeiture

28. As an additional condition of receiving the Stock Option, the Participant agrees that the Stock Option and any benefits or proceeds the Participant may receive hereunder shall be subject to forfeiture and/or repayment to the Company to the extent required (i) under the terms of any recoupment or “clawback” policy adopted by the Company to comply with applicable laws or with the Company’s Corporate Governance Guidelines or other similar requirements, as such policy may be amended from time to time (and such requirements shall be deemed incorporated into the Award Terms without the Participant’s consent) or (ii) to comply with any requirements imposed under applicable laws and/or the rules and regulations of the securities exchange or inter-dealer quotation system on which the Shares are listed or quoted, including, without limitation, pursuant to Section 954 of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010. Further, if the Participant receives any amount in excess of what the Participant should have received under the terms of the Stock Option for any reason (including without limitation by reason of a financial restatement, mistake in calculations or administrative error), all as determined by the Committee, then the Participant shall be required to promptly repay any such excess amount to the Company.

Miscellaneous Provisions

29. Stock Exchange Requirements; Applicable Laws. Notwithstanding anything to the contrary in the Award Terms, no Shares purchased upon exercise of the Stock Option, and no certificate representing all or any part of such Shares, shall be issued or delivered if, in the opinion of counsel to the Company, such issuance or delivery would cause the Company to be in violation of, or to incur liability under, any securities law, or any rule, regulation or procedure of any U.S. national securities exchange upon which any securities of the Company are listed, or any listing agreement with any such securities exchange, or any other requirement of law or of any administrative or regulatory body having jurisdiction over the Company or a Subsidiary.

6

30. Shareholder Rights. No person or entity shall be entitled to vote, receive dividends or be deemed for any purpose the holder of any Shares until the Stock Option shall have been duly exercised to purchase such Shares in accordance with the provisions of the Award Terms.

31. Notices. Any notice required or permitted under the Award Terms shall be in writing and shall be deemed sufficient when delivered personally or sent by confirmed email, telegram, or fax or five days after being deposited in the mail, as certified or registered mail, with postage prepaid, and addressed to the Company at the Company’s principal corporate offices or to the Participant at the address maintained for the Participant in the Company’s records or, in either case, as subsequently modified by written notice to the other party.

32. Severability and Judicial Modification. If any provision of the Award Terms is held to be invalid or unenforceable under the applicable laws of any country, state, province, territory or other political subdivision or the Company elects not to enforce such restriction, the remaining provisions shall remain in full force and effect and the invalid or unenforceable provision shall be modified only to the extent necessary to render that provision valid and enforceable to the fullest extent permitted by law. If the invalid or unenforceable provision cannot be, or is not, modified, that provision shall be severed from the Award Terms and all other provisions shall remain valid and enforceable.

33. Successors. The Award Terms shall be binding upon and inure to the benefit of the Company and its successors and assigns, on the one hand, and the Participant and his or her heirs, beneficiaries, legatees and personal representatives, on the other hand.

34. Appendices. Notwithstanding any provisions in the Award Terms, for Participants residing and/or working outside the United States, the Stock Option shall be subject to the additional terms and conditions set forth in Appendix A to the Award Terms and to any special terms and conditions for the Participant’s country set forth in Appendix B to the Award Terms. Moreover, if the Participant relocates outside the United States or relocates between the countries included in Appendix B, the additional terms and conditions set forth in Appendix A and the special terms and conditions for such country set forth in Appendix B will apply to the Participant, to the extent the Company determines that the application of such terms and conditions is necessary or advisable for legal or administrative reasons. The Appendices constitutes part of the Award Terms.

35. Imposition of Other Requirements. The Company reserves the right to impose other requirements on the Participant’s participation in the Plan, on the Stock Option and on any Shares acquired under the Plan, to the extent the Company determines it is necessary or advisable for legal or administrative reasons, and to require the Participant to sign any additional agreements or undertakings that may be necessary to accomplish the foregoing.

36. Waiver. A waiver by the Company of breach of any provision of the Award Terms shall not operate or be construed as a waiver of any other provision of the Award Terms, or of any subsequent breach by the Participant or any other Participant.

37. No Advice Regarding Award. The Company is not providing any tax, legal or financial advice, nor is the Company making any recommendations regarding the Participant’s participation in the

7

Plan, or the Participant’s acquisition or sale of the underlying Shares. The Participant is hereby advised to consult with the Participant’s own personal tax, legal and financial advisors regarding the Participant’s participation in the Plan before taking any action related to the Plan.

38. Governing Law and Venue. As stated in the Plan, the Stock Option and the provisions of the Award Terms and all determinations made and actions taken thereunder, to the extent not otherwise governed by the laws of the United States, shall be governed by the laws of the State of New York, United States of America, without reference to principles of conflict of laws, and construed accordingly. The jurisdiction and venue for any disputes arising under, or any actions brought to enforce (or otherwise relating to), the Stock Option will be exclusively in the courts in the State of New York, County of New York, including the Federal Courts located therein (should Federal jurisdiction exist).

39. Electronic Delivery and Acceptance. The Company may, in its sole discretion, decide to deliver any documents related to current or future participation in the Plan by electronic means. The Participant hereby consents to receive such documents by electronic delivery and agrees to participate in the Plan through an on-line or electronic system established and maintained by the Company or a third party designated by the Company.

40. Entire Agreement. The Award Terms and the Plan embody the entire understanding and agreement of the parties with respect to the subject matter hereof, and no promise, condition, representation or warranty, express or implied, not stated or incorporated by reference herein, shall bind either party hereto.

Acceptance of Award

41. In accordance with Section 15(c) of the Plan (as in effect at the grant date), the Participant may reject the Stock Option by notifying the Company within 30 days of the grant date that he or she does not accept the Stock Option. The Participant’s acceptance of the Stock Option constitutes the Participant’s acceptance of and agreement with the Award Terms. Notwithstanding the foregoing, if required by the Company, the Participant will provide a signed copy of the Award Terms in such manner and within such timeframe as may be requested by the Company. The Company has no obligation to issue Shares to the Participant if the Participant does not accept the Stock Option.

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APPENDIX A TO THE ALCOA, INC.

2013 Stock Incentive Plan

Terms and Conditions for Stock Option Awards

For Non-U.S. Participants

This Appendix A contains additional (or, if so indicated, different) terms and conditions that govern the Stock Option if the Participant resides and/or works outside of the United States. Capitalized terms used but not defined herein shall have the same meanings assigned to them in the Plan and the Terms and Conditions for Stock Option Awards (the “Terms and Conditions”).

A. Termination. This provision supplements paragraph 3 of the Terms and Conditions.

The Company will determine when the Participant is no longer providing services for purposes of the Stock Option (including whether the Participant may still be considered to be providing services while on a leave of absence).

B. Responsibility for Taxes. This provision replaces paragraph 6 of the Terms and Conditions.

The Participant acknowledges that, regardless of any action taken by the Company or, if different, the Subsidiary that employs the Participant (the “Employer”), the ultimate liability for all income tax, social insurance, payroll tax, fringe benefits tax, payment on account or other tax-related items related to the Participant’s participation in the Plan and legally applicable to the Participant (“Tax-Related Items”) is and remains the Participant’s responsibility and may exceed the amount actually withheld by the Company or the Employer. The Participant further acknowledges that the Company and/or the Employer (a) make no representations or undertakings regarding the treatment of any Tax-Related Items in connection with any aspect of the Stock Option, including, but not limited to, the grant, vesting or exercise of the Stock Option, the subsequent sale of Shares acquired upon exercise of the Stock Option and the receipt of any dividends; and (b) do not commit to and are under no obligation to structure the terms of the Stock Option or any aspect of the Stock Option to reduce or eliminate the Participant’s liability for Tax-Related Items or achieve any particular tax result. The Participant shall not make any claim against the Company, the Employer or any other Subsidiary, or their respective board, officers or employees related to Tax-Related Items arising from the Stock Option. Furthermore, if the Participant has become subject to tax in more than one jurisdiction, the Participant acknowledges that the Company and/or the Employer (or former employer, as applicable) may be required to withhold or account for Tax-Related Items in more than one jurisdiction.

Prior to any relevant taxable or tax withholding event, as applicable, the Participant will pay or make adequate arrangements satisfactory to the Company and/or the Employer to satisfy all Tax-Related Items. In this regard, the Participant authorizes the Company and/or the Employer, or their respective agents, at their discretion, to satisfy their withholding obligations with regard to all Tax-Related Items by: (i) requiring a cash payment from the Participant; (ii) withholding from the Participant’s wages or other cash compensation paid to the Participant by the Company and/or the Employer, (iii) withholding from the proceeds of the sale of Shares acquired pursuant to the Stock

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Option, either through a voluntary sale or through a mandatory sale arranged by the Company (on the Participant’s behalf pursuant to this authorization without further consent); and/or (iv) withholding from the Shares to be issued upon exercise of the Stock Option.

Depending on the withholding method, the Company may withhold or account for Tax-Related Items by considering applicable minimum statutory withholding rates or other applicable withholding rates, including maximum applicable rates, in which case the Participant will receive a refund of any over-withheld amount in cash and will have no entitlement to the Share equivalent. If the obligation for Tax-Related Items is satisfied by withholding in Shares, the Participant is deemed, for tax purposes, to have been issued the full number of Shares upon exercise of the Stock Option, notwithstanding that a number of the Shares is held back solely for the purpose of paying the Tax-Related Items.

Finally, the Participant shall pay to the Company and/or the Employer any amount of Tax-Related Items that the Company and/or the Employer may be required to withhold or account for as a result of the Participant’s participation in the Plan that cannot be satisfied by the means previously described. The Company may refuse to issue or deliver the Shares or the proceeds of the sale of Shares if the Participant fails to comply with his or her obligations in connection with the Tax-Related Items.

C. Nature of Award. In accepting the Stock Option, the Participant acknowledges, understands and agrees that:

a. the Plan is established voluntarily by the Company, is discretionary in nature and may be modified, amended, suspended, or terminated by the Company at any time, to the extent permitted by the Plan;

b. this Award of Stock Options is voluntary and occasional and does not create any contractual or other right to receive future Stock Options, or benefits in lieu of Stock Options, even if Stock Options have been granted in the past;

c. all decisions with respect to future Stock Options or other Awards, if any, will be at the sole discretion of the Company;

d. this Award of Stock Options and the Participant’s participation in the Plan shall not create a right to, or be interpreted as forming an employment or service contract with the Company and shall not interfere with the ability of the Employer to terminate the Participant’s employment contract (if any) at any time;

e. the Participant’s participation in the Plan is voluntary;

f. this Award of Stock Options and the Shares acquired under the Plan, and the income and value of same, are not part of normal or expected compensation or salary for any purposes, including, without limitation, calculating any severance, resignation, termination, redundancy, dismissal, end-of-service payments, bonuses, long-service awards, pension or retirement or welfare benefits or similar payments;

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g. if the underlying Shares do not increase in value, the Stock Option will have no value;

h. if the Participant exercise the Stock Option and acquires Shares, the value of such Shares may increase or decrease in value, even below the exercise price’

i. the future value of the Shares subject to the Stock Option is unknown and cannot be predicted with certainty;

j. unless otherwise agreed with the Company, Stock Options and the Shares acquired under the Plan, and the income and value of same, are not granted as consideration for, or in connection with, the service the Participant may provide as a director of any Subsidiary;

k. no claim or entitlement to compensation or damages shall arise from forfeiture of any portion of this Award of Stock Options resulting from termination of the Participant’s employment relationship (for any reason whatsoever and regardless of whether later found to be invalid or in breach of applicable laws in the jurisdiction where the Participant is employed or the terms of the Participant’s employment agreement, if any), and, in consideration of this Award of Stock Options to which the Participant is not otherwise entitled, the Participant irrevocably agrees never to institute any claim against the Company, the Employer and any other Subsidiary, waives his or her ability, if any, to bring any such claim, and releases the Company, the Service Recipient and all other Subsidiaries from any such claim; if, notwithstanding the foregoing, any such claim is allowed by a court of competent jurisdiction, then, by participating in the Plan, the Participant shall be deemed irrevocably to have agreed not to pursue such claim and agrees to execute any and all documents necessary to request dismissal or withdrawal of such claims;

l. unless otherwise provided in the Plan or by the Company in its discretion, this Award of Stock Options and the benefits under the Plan evidenced by these Award Terms do not create any entitlement to have this Award of Stock Options or any such benefits transferred to, or assumed by, another company nor to be exchanged, cashed out or substituted for, in connection with any corporate transaction affecting the Shares; and

m. neither the Company, the Employer nor any other Subsidiary shall be liable for any foreign exchange rate fluctuation between the Participant’s local currency and the United States Dollar that may affect the value of the Stock Option or of any amounts due to the Participant pursuant to the Stock Option or the subsequent sale of any Shares acquired under the Plan.

D. Data Privacy. The Participant hereby explicitly and unambiguously consents to the collection, use and transfer, in electronic or other form, of the Participant’s personal data as described in these Award Terms and any other grant materials by and among, as applicable, the Company, the Employer and any other Subsidiary for the exclusive purpose of implementing, administering and managing the Participant’s participation in the Plan.

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The Participant understands that the Company and the Employer may hold certain personal information about the Participant, including, but not limited to, the Participant’s name, home address, email address and telephone number, date of birth, social insurance number, passport or other identification number, salary, nationality, job title, any shares of stock or directorships held in the Company, details of all Stock Options or any other entitlement to shares of stock awarded, canceled, exercised, vested, unvested or outstanding in the Participant’s favor (“Data”), for the exclusive purpose of implementing, administering and managing the Plan.

The Participant understands that Data may be transferred to Merrill Lynch, which is assisting the Company with the implementation, administration and management of the Plan. The Participant understands that the recipients of Data may be located in the United States or elsewhere, and that the recipients’ country (e.g., the United States) may have different data privacy laws and protections than the Participant’s country. The Participant understands that the Participant may request a list with the names and addresses of any potential recipients of Data by contacting the Participant’s local human resources representative. The Participant authorizes the Company, Merrill Lynch and any other possible recipients which may assist the Company (presently or in the future) with implementing, administering and managing the Plan to receive, possess, use, retain and transfer Data, in electronic or other form, for the sole purpose of implementing, administering and managing the Participant’s participation in the Plan. The Participant understands that Data will be held only as long as is necessary to implement, administer and manage the Participant’s participation in the Plan. The Participant understands that the Participant may, at any time, view Data, request additional information about the storage and processing of Data, require any necessary amendments to Data or refuse or withdraw the consents herein, in any case without cost, by contacting in writing the Participant’s local human resources representative. Further, the Participant understands that the Participant is providing the consents herein on a purely voluntary basis. If the Participant does not consent, or if the Participant later seeks to revoke the Participant’s consent, the Participant’s employment and career with the Employer will not be affected; the only consequence of refusing or withdrawing the Participant’s consent is that the Company would not be able to grant this Award of Stock Options or other Awards to the Participant or administer or maintain such Awards. Therefore, the Participant understands that refusing or withdrawing the Participant’s consent may affect the Participant’s ability to participate in the Plan. For more information on the consequences of the Participant’s refusal to consent or withdrawal of consent, the Participant understands that the Participant may contact the Participant’s local human resources representative.

E. Retirement. Notwithstanding paragraph 7 of the Terms and Conditions, if the Company receives an opinion of counsel that there has been a legal judgment and/or legal development in the Participant’s jurisdiction that would likely result in the favorable treatment applicable to the Stock Option pursuant to paragraph 7 being deemed unlawful and/or discriminatory, then the Company will not apply the favorable treatment at the time of the Participant’s retirement, and the Stock Option will be treated as set forth in the remaining provisions of paragraph 7 of the Terms and Conditions.

F. Language. If the Participant has received these Award Terms, or any other document related to this Award of Stock Option and/or the Plan translated into a language other than English and if the meaning of the translated version is different than the English version, the English version will control.

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G. Insider Trading Restrictions/Market Abuse Laws. The Participant acknowledges that, depending on his or her country, the Participant may be subject to insider trading restrictions and/or market abuse laws, which may affect his or her ability to acquire or sell Shares or rights to Shares under the Plan during such times as the Participant is considered to have “inside information” regarding the Company (as defined by applicable laws in his or her country). Any restrictions under these laws or regulations are separate from and in addition to any restrictions that may be imposed under any applicable Company insider trading policy. The Participant acknowledges that it is his or her responsibility to comply with any applicable restrictions, and the Participant should consult his or her personal advisor on this matter.

H. Foreign Asset/Account Reporting Requirements, Exchange Controls and Tax Requirements. The Participant acknowledges that his or her country may have certain foreign asset and/or account reporting requirements and exchange controls which may affect his or her ability to acquire or hold Shares under the Plan or cash received from participating in the Plan (including from any dividends received or sale proceeds arising from the sale of Shares) in a brokerage or bank account outside his or her country. The Participant understands that he or she may be required to report such accounts, assets or transactions to the tax or other authorities in his or her country. The Participant also may be required to repatriate sale proceeds or other funds received as a result of the Participant’s participation in the Plan to his or her country through a designated bank or broker and/or within a certain time after receipt. In addition, the Participant may be subject to tax payment and/or reporting obligations in connection with any income realized under the Plan and/or from the sale of Shares. The Participant acknowledges that it is his or her responsibility to be compliant with all such requirements, and that the Participant should consult his or her personal legal and tax advisors, as applicable, to ensure the Participant’s compliance.

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APPENDIX B TO THE ALCOA, INC.

2013 Stock Incentive Plan

Terms and Conditions for Stock Option Awards

For Non-U.S. Participants

Capitalized terms used but not defined in this Appendix B have the meanings set forth in the Plan and the Terms and Conditions for Stock Option Awards (the “Terms and Conditions”).

Terms and Conditions

This Appendix B includes special terms and conditions that govern the Stock Option if the Participant resides and/or works in one of the countries listed below.

If the Participant is a citizen or resident of a country other than the country in which the Participant is currently residing and/or working, or if the Participant transfers to another country after the grant of the Stock Option or is considered a resident of another country for local law purposes, the Committee shall, in its discretion, determine to what extent the special terms and conditions contained herein shall be applicable to the Participant.

Notifications

This Appendix B also includes information regarding exchange controls, tax and certain other issues of which the Participant should be aware with respect to participation in the Plan. The information is based on the securities, exchange control, tax and other laws in effect in the respective countries as of January 2016. Such laws are often complex and change frequently. As a result, the Company strongly recommends that the Participant not rely on the information in this Appendix B as the only source of information relating to the consequences of participation in the Plan because the information may be out of date at the time the Participant exercises the Stock Option or sells Shares acquired under the Plan.

In addition, the information contained herein is general in nature and may not apply to the Participant’s particular situation and the Company is not in a position to assure the Participant of any particular result. Accordingly, the Participant should seek appropriate professional advice as to how the relevant laws in the Participant’s country may apply to his or her situation.

Finally, if the Participant is a citizen or resident of a country other than the country in which the Participant currently works and/or resides, or if the Participant transfers to another country after the grant of the Stock Option, or is considered a resident of another country for local law purposes, the information contained herein may not be applicable to the Participant in the same manner.

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AUSTRALIA

Notifications

Exchange Control Information.

Exchange control reporting is required for cash transactions exceeding A$10,000 and for international fund transfers. If an Australian bank is assisting with the transaction, the bank will file the report on the Participant’s behalf.

Tax Information.

The Plan is a plan to which Subdivision 83A-C of the Income Tax Assessment Act 1997 (Cth) applies (subject to conditions in the Act).

BELGIUM

Terms and Conditions

Accepting the Stock Option.

The tax consequences to the Participant vary depending upon when the Participant accepts the Stock Option. Based on the current interpretation of Belgian tax law by the Belgian Minister of Finance, if the Participant accepts the Stock Option within 60 days from the offer date, the Participant will be subject to tax at the time of offer; or if the Participant accepts the Stock Option after 60 days from the offer date, the Participant will be subject to tax at the time of exercise. The Company is not in a position to provide the Participant with tax advice, so Participants should consult with his or her personal tax advisor to determine when the Participant should accept the Stock Option. The choice is at the Participant’s risk and neither the Company nor any of its Subsidiaries may be held liable for damages, if any, that the Participant may incur should the Minister of Finance’s interpretation not be upheld (with respect to taxation at exercise for Stock Option awards accepted after 60 days following the offer date).

The Participant is strongly encouraged to consult his or her tax advisor in deciding which choice to make with respect to the Stock Option.

Notifications

Foreign Asset/Account Reporting Information.

If the Participant is a Belgian resident, the Participant is required to report any bank accounts opened and maintained outside of Belgium (e.g., brokerage accounts opened in connection with the Plan) on his or her annual tax return. In a separate report, the Participant is required to provide the National Bank of Belgium with certain details regarding such foreign accounts (including the account number, bank name and country in which any such account was opened). This report, as well as additional information on how to complete it, can be found on the website of the National Bank of Belgium, www.nbb.be, under Kredietcentrales / Centrales des crédits caption. The Participant should consult with his or her personal tax advisor to determine his or her personal reporting obligations.

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BRAZIL

Terms and Conditions

Compliance with Law.

By accepting the Stock Option, the Participant acknowledges that he or she agrees to comply with applicable Brazilian laws and to pay any and all applicable taxes associated with the exercise of the Stock Options, the sale of the Shares acquired under the Plan and the receipt of any dividends.

Acknowledgment of Nature of the Grant.

This provision supplements paragraph C “Nature of Award” of Appendix A:

By accepting and/or exercising the Stock Option, the Participant agrees that he or she is making an investment decision, the Stock Option may be exercised only if the vesting conditions are met and any necessary services are rendered by the Participant over the vesting period, and the value of the underlying Shares is not fixed and may increase or decrease in value without compensation to the Participant.

Notifications

Exchange Control Information.

If the Participant is a resident of or domiciled in Brazil, he or she will be required to submit an annual declaration of assets and rights held outside of Brazil to the Central Bank of Brazil if the aggregate value of the assets and rights is equal to or greater than US$100,000. If such amount exceeds US$100,000,000, the declaration must be submitted quarterly. Assets and rights that must be reported include Shares acquired under the Plan.

Tax on Financial Transactions (IOF).

The remittance of funds from Brazil, the repatriation of funds (e.g., sale proceeds) into Brazil and the conversion of USD into BRL associated with such fund transfers may be subject to the Tax on Financial Transactions. It is the Participant’s responsibility to comply with any applicable Tax on Financial Transactions arising from the Participant’s participation in the Plan. The Participant should consult with his or her personal tax advisor for additional details.

CANADA

Terms and Conditions

Payment of Exercise Price and Tax-Related Items.

Notwithstanding any provision in the Plan or the Terms and Conditions (including Appendix A), the Participant is prohibited from delivering Shares that have been owned by the Participant to pay the exercise price or Tax-Related Items in connection with the Stock Option.

Termination of Service. The following provision replaces paragraph A “Termination” of Appendix A.

For purposes of the Stock Option, the Participant’s employment relationship will be considered terminated (regardless of the reason for such termination and whether or not later found to be

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invalid or in breach of Canadian laws or the terms of the Participant’s employment agreement, if any)effective as of the date that is the earlier of (i) the date of the Participant’s termination, (ii) the date the Participant receives notice of termination, or (iii) the date the Participant is no longer actively providing service and will not be extended by any notice period (e.g., active service would not include any contractual notice period or any period of “garden leave” or similar period mandated under Canadian laws or the terms of the Participant’s employment agreement, if any). Unless otherwise expressly provided in these Award Terms or determined by the Company, the Participant’s right to vest in the Stock Option, if any, will terminate effective as of such date and any period to exercise the Stock Option after termination will start to run on such date. The Committee shall have the exclusive discretion to determine when the Participant is no longer actively providing service for purposes of the Stock Option (including whether the Participant may still be considered to be providing services while on a leave of absence).

The Following Provisions Apply for Participants Resident in Quebec:

Consent to Receive Information in English.

The Participant acknowledges that it is the express wish of the parties that these Award Terms, as well as all documents, notices and legal proceedings entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be written in English.

Les parties reconnaissent avoir exigé la rédaction en anglais de Conditions d’attribution, ainsi que de tous documents, avis et procédures judiciaires, exécutés, donnés ou intentés en vertu de, ou liés directement ou indirectement à, la présente convention.

Authorization to Release and Transfer Necessary Personal Information. The following provision supplements paragraph D “Data Privacy” of Appendix A.

The Participant hereby authorizes the Company and the Company’s representatives to discuss with and obtain all relevant information from all personnel, professional or not, involved in the administration and operation of the Plan. The Participant further authorizes the Company, any Subsidiary and the administrator of the Plan to disclose and discuss the Plan with their advisors. The Participant further authorizes the Company and any Subsidiary to record such information and to keep such information in the Participant’s employee file.

Notifications

Securities Law Information.

The Participant acknowledges that he or she is permitted to sell the Shares acquired under the Plan through the designated broker appointed by the Company, provided the sale of the Shares takes place outside of Canada through facilities of a stock exchange on which the Shares are listed (i.e., the NYSE).

Foreign Asset/Account Reporting Information.

Canadian residents are required to report to the tax authorities any foreign property on form T1135 (Foreign Income Verification Statement) if the total cost of the foreign property exceeds C$100,000 at any time in the year. The form must be filed by April 30 of the following year. Stock Options must be reported—generally at a nil cost—if the C$100,000 cost threshold is exceeded because of other

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foreign property the Participant holds. If Shares are acquired, their cost generally is the adjusted cost base (“ACB”) of the Shares. The ACB would normally equal the fair market value of the Shares at exercise, but if the Participant owns other Shares, this ACB may have to be averaged with the ACB of the other Shares. The Participant should consult with his or her personal legal advisor to ensure compliance with applicable reporting obligations.

CHINA

Terms and Conditions

The following terms and conditions will apply to Participants who are subject to exchange control restrictions and regulations in the People’s Republic of China (“PRC”), including the requirements imposed by the State Administration of Foreign Exchange (“SAFE”), as determined by the Company in its sole discretion:

Cashless Exercise Restriction.

Notwithstanding anything to the contrary in the Award Terms or the Plan, to facilitate compliance with exchange control laws in China, the Participant will be required to exercise the Stock Option using a cashless sell-all exercise method whereby all Shares subject to the exercised Stock Option will be sold immediately upon exercise and the proceeds of sale, less the exercise price, any Tax-Related Items and broker’s fees or commissions, will be remitted to the Participant in accordance with any applicable exchange control laws and regulations. The Participant will not be permitted to hold Shares after exercise. The Company reserves the right to provide additional methods of exercise to the Participant depending on the development of local law.

Termination of Employment.

Due to legal restrictions in China, notwithstanding any provision in the Plan or the Award Terms, the Participant may be required to exercise any Stock Option within a certain period of time (determined by the Company) after termination. If the Stock Option is not exercised by the Participant by the end of this period, the Stock Option shall be forfeited and cancelled.

Furthermore, the Participant agrees that the Company reserves the right to require the sale of any Shares acquired at exercise of the Stock Option upon the termination of the Participant’s employment for any reason. The Participant hereby authorizes the sale of all Shares issued to the Participant as soon as administratively practicable after the applicable termination of employment and pursuant to this authorization. The Participant further agrees that the Company is authorized to instruct its designated broker to assist with the mandatory sale of such Shares and the Participant expressly authorizes the Company’s designated broker to complete the sale of such Shares. The Participant acknowledges that the Company’s designated broker is under no obligation to arrange for the sale of the Shares at any particular price. Upon the sale of Shares, the Participant will receive the sale proceeds less any amounts necessary to satisfy Tax-Related Items and applicable transaction fees or commissions. Due to currency exchange conversion rate fluctuation between the applicable exercise date of the Stock Option and (if later) the date on which the Shares are sold, the amount of sale proceeds may be more or less than the fair market value of the Shares on the applicable exercise date (which is the relevant amount for purposes of calculating amounts necessary to satisfy applicable Tax-Related Items).

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Exchange Control Restrictions.

The Participant understands and agrees that, pursuant to local exchange control requirements, the Participant will be required to immediately repatriate any cash payments or proceeds obtained with respect to participation in the Plan to the PRC. The Participant further understands that such repatriation of any cash payments or proceeds may need to be effectuated through a special exchange control account established by the Company or any Subsidiary, and the Participant hereby consents and agrees that any payment or proceeds may be transferred to such special account prior to being delivered to the Participant.

Any payment or proceeds may be paid to the Participant in U.S. dollars or local currency at the Company’s discretion. If the payments or proceeds are paid to the Participant in U.S. dollars, the Participant will be required to set up a U.S. dollar bank account in the PRC so that the payments or proceeds may be deposited into this account. If the payments or proceeds are paid to the Participant in local currency, the Company is under no obligation to secure any particular exchange conversion rate and the Company may face delays in converting the payments or proceeds to local currency due to exchange control restrictions.

The Participant further agrees to comply with any other requirements that may be imposed by the Company in the future to facilitate compliance with exchange control requirements in the PRC.

CZECH REPUBLIC

Notifications

Foreign Asset/Account Reporting Information.

Upon request of the Czech National Bank, the Participant may be required to file a report in connection with the Stock Option and the opening and maintenance of a foreign account. However, because exchange control regulations change frequently and without notice, the Participant should consult with his or her personal advisor before exercising the Stock Option and before opening any foreign accounts in connection with the Stock Option to ensure compliance with current regulations. The Participant is solely responsible for complying with applicable Czech exchange control laws.

FINLAND

There are no country-specific provisions.

FRANCE

Terms and Conditions

Language Consent.

By accepting the Stock Option and the Award Terms, which provide for the terms and conditions of the Stock Option, the Participant confirms having read and understood the documents relating to this Award (the Plan and the Award Terms, including the Appendices) which were provided to the Participant in English. The Participant accepts the terms of those documents accordingly.

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En acceptant l’attribution d’e Stock Option et ce Contrat d’Attribution qui contient les termes et conditions de Stock Option, le Participant confirme avoir lu et compris les documents relatifs à cette attribution (le Plan et le Contrat d’Attribution, ainsi que les Annexes) qui ont été transmis au Participant en langue anglaise. Le Participant accepte ainsi les conditions et termes de ces documents.

Notifications

Foreign Asset/Account Reporting Information.

If the Participant is a French resident, he or she must declare all foreign bank and brokerage accounts (including any accounts that were opened or closed during the tax year) on an annual basis on form No. 3916, together with the Participant’s income tax return. Failure to complete this reporting triggers penalties for the Participant. Further, French residents with foreign account balances exceeding €1,000,000 may have additional monthly reporting obligations.

GERMANY

Notifications

Exchange Control Information.

Cross-border payments in excess of €12,500 must be reported monthly to the German Federal Bank (Bundesbank). If the Participant makes or receives a payment in excess of this amount, the Participant must report the payment to Bundesbank electronically using the “General Statistics Reporting Portal” (“Allgemeines Meldeportal Statistik”) available via Bundesbank’s website (www.bundesbank.de).

GUINEA

Terms and Conditions

Option Exercise.

Notwithstanding anything to the contrary in the Award Terms or the Plan, if deemed to be necessary by the Company to comply with applicable laws, the Participant will be required to exercise the Stock Option using a cashless sell-all exercise method whereby all Shares subject to the exercised Stock Option will be sold immediately upon exercise and the proceeds of sale, less the exercise price, any Tax-Related Items and broker’s fees or commissions, will be remitted to the Participant in accordance with any applicable exchange control laws and regulations. In this case, the Participant will not be permitted to hold Shares after exercise. The Company reserves the right to provide additional methods of exercise to the Participant depending on the development of local law.

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HUNGARY

There are no country-specific provisions.

ICELAND

Terms and Conditions

Cashless Exercise Restriction.

Notwithstanding anything to the contrary in the Award Terms or the Plan, to facilitate compliance with exchange control laws in Iceland, the Participant will be required to exercise the Stock Option using a cashless sell-all exercise method whereby all Shares subject to the exercised Stock Option will be sold immediately upon exercise and the proceeds of sale, less the exercise price, any Tax-Related Items and broker’s fees or commissions, will be remitted to the Participant in accordance with any applicable exchange control laws and regulations. The Participant will not be permitted to hold Shares after exercise. The Company reserves the right to provide additional methods of exercise to the Participant depending on the development of local law.

ITALY

Terms and Conditions

Cashless Exercise Restriction.

Notwithstanding anything to the contrary in the Award Terms or the Plan, to facilitate compliance with securities laws in Italy, the Participant will be required to exercise the Stock Option using a cashless sell-all exercise method whereby all Shares subject to the exercised Stock Option will be sold immediately upon exercise and the proceeds of sale, less the exercise price, any Tax-Related Items and broker’s fees or commissions, will be remitted to the Participant in accordance with any applicable exchange control laws and regulations. The Participant will not be permitted to hold Shares after exercise. The Company reserves the right to provide additional methods of exercise to the Participant depending on the development of local law.

Authorization to Release and Transfer Necessary Personal Information. The following provision replaces in its entirety paragraph D “Data Privacy” of Appendix A:

The Participant understands that the Employer and/or the Company may hold certain personal information about the Participant, including, but not limited to, the Participant’s name, home address and telephone number, date of birth, social security number (or any other social or national identification number), salary, nationality, job title, number of Shares held and the details of all Stock Options or any other entitlement to Shares awarded, cancelled, exercised, vested, unvested or outstanding (the “Data”) for the exclusive purpose of implementing, administering and managing the Participant’s participation in the Plan. The Participant is aware that providing the Company with the Participant’s Data is necessary for the performance of the Award Terms and that the Participant’s refusal to provide such Data would make it impossible for the Company to perform its contractual obligations and may affect the Participant’s ability to participate in the Plan.

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The Controller of personal data processing is Alcoa, Inc., 390 Park Avenue, New York City, New York, 10022 U.S.A., and, pursuant to D.lgs 196/2003, its representative in Italy is Fusina Rolling Srl, Piazza Giuseppe Missori n.2, Milano, 20122 Italy. The Participant understands that the Data may be transferred to the Company or any of its Subsidiaries, or to any third parties assisting in the implementation, administration and management of the Plan, including any transfer required to Merrill Lynch with whom Shares acquired pursuant to the exercise of the Stock Option or cash from the sale of such Shares may be deposited. Furthermore, the recipients that may receive, possess, use, retain and transfer such Data for the above mentioned purposes may be located in Italy or elsewhere, including outside of the European Union and the recipients’ country (e.g., the United States) may have different data privacy laws and protections than the Participant’s country. The processing activity, including the transfer of the Participant’s personal data abroad, outside of the European Union, as herein specified and pursuant to applicable laws and regulations, does not require the Participant’s consent thereto as the processing is necessary for the performance of contractual obligations related to the implementation, administration and management of the Plan. The Participant understands that Data processing relating to the purposes above specified shall take place under automated or non-automated conditions, anonymously when possible, that comply with the purposes for which Data are collected and with confidentiality and security provisions as set forth by applicable laws and regulations, with specific reference to D.lgs. 196/2003.

The Participant understands that Data will be held only as long as is required by law or as necessary to implement, administer and manage the Participant’s participation in the Plan. Participant understands that pursuant to art.7 of D.lgs 196/2003, the Participant has the right, including but not limited to, access, delete, update, request the rectification of the Data and cease, for legitimate reasons, the Data processing. Furthermore, the Participant is aware that the Data will not be used for direct marketing purposes. In addition, the Data provided can be reviewed and questions or complaints can be addressed by contacting a local human resources representative.

Plan Document Acknowledgement.

By accepting the Stock Option, the Participant acknowledges that the Participant has received a copy of the Plan and the Award Terms and has reviewed the Plan and the Award Terms, including the Appendices, in their entirety and fully understands and accepts all provisions of the Plan and the Award Terms, including the Appendices. The Participant further acknowledges that the Participant has read and specifically and expressly approves the following paragraphs of the Award Terms: paragraphs 4-11: Vesting, Option Exercise and Payment of Exercise Price; paragraph 28: Repayment and Forfeiture; paragraph 29: Stock Exchange Requirements and Applicable Laws; paragraph 32: Severability and Judicial Modification; paragraph 34: Appendices; paragraph 35: Imposition of Other Requirements; paragraph 38: Governing Law and Venue; paragraph A of Appendix A: Termination; paragraph C of Appendix A: Nature of Award and the Data Privacy provisions above.

Notifications

Foreign Asset/Account Reporting Information.

Italian residents who, during the fiscal year, hold investments abroad or foreign financial assets (e.g., cash, Shares, Stock Options) which may generate income taxable in Italy are required to

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report such on their annual tax returns (UNICO form, RW Schedule) or on a special form if no tax return is due. The same reporting obligations apply to Italian residents who, even if they do not directly hold investments abroad or foreign financial assets (e.g., cash, Shares, Stock Options), are beneficial owners of the investment pursuant to Italian money laundering provisions.

Tax on Foreign Financial Assets.

The value of the financial assets held outside of Italy by Italian residents is subject to a foreign asset tax at an annual rate of 2 per thousand (0.2%) . The taxable amount will be the fair market value of the financial assets (including Shares) assessed at the end of the calendar year. No tax payment duties arise if the amount of the foreign assets tax calculated on all financial assets held abroad does not exceed €12.

JAMAICA

There are no country-specific provisions.

JAPAN

Notifications

Exchange Control Information.

Japanese residents purchasing Shares valued at more than ¥100,000,000 in a single transaction must file a Securities Acquisition Report with the Ministry of Finance through the Bank of Japan within 20 days of the acquisition of the Shares.

In addition, Japanese resident Participants paying more than ¥30,000,000 in a single transaction for the purchase of Shares when the resident Participant exercises the Stock Option must file a Payment Report with the Ministry of Finance through the Bank of Japan within 20 days of the date that the payment is made. The precise reporting requirements vary depending on whether or not the relevant payment is made through a bank in Japan.

Please note that a Payment Report is required independently from a Securities Acquisition Report; therefore, the Japanese resident Participant must file both a Payment Report and a Securities Acquisition Report if the total amount that the resident Participant pays in a single transaction for exercising the Stock Option and purchasing Shares exceeds ¥100,000,000.

Foreign Asset/Account Reporting Information.

The Participant will be required to report details of any assets held outside of Japan as of December 31 (including any Shares acquired under the Plan) to the extent such assets have a total net fair market value exceeding ¥50,000,000. Such report will be due by March 15 of the following year. The Participant should consult with his or her personal tax advisor as to whether the reporting obligation applies to the Participant and whether the Participant will be required to report details of any outstanding Stock Options, Shares or cash held by the Participant in the report.

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KOREA

Notifications

Exchange Control Information.

Exchange control laws require Korean residents who realize US$500,000 or more from the sale of Shares or the receipt of dividends in a single transaction to repatriate the proceeds back to Korea within three years of the sale/receipt.

Foreign Asset/Account Reporting Information.

If the Participant is a Korean resident, the Participant must declare all of his or her foreign financial accounts (including any brokerage account) to the Korean tax authority and file a report with respect to such accounts if the value of such accounts exceeds KRW 1 billion (or an equivalent amount in foreign currency).The Participant should consult with his or her personal tax advisor as to whether the reporting obligation applies.

MEXICO

Terms and Conditions

Policy Statement.

The Stock Option is a unilateral and discretionary award and, therefore, the Company reserves the absolute right to amend it and discontinue it at any time without any liability.

The Company, with offices at 390 Park Avenue, New York City, New York, 10022 U.S.A., is solely responsible for the administration of the Plan, and participation in the Plan and the Stock Option does not, in any way, establish an employment relationship between the Participant and the Company since the Participant is participating in the Plan on a wholly commercial basis and the sole employer is a Mexican Subsidiary, nor does it establish any rights between the Participant and the Employer.

Plan Document Acknowledgment.

By accepting the Stock Option, the Participant acknowledges that he or she has received copies of the Plan, has reviewed the Plan and the Award Terms in their entirety, and fully understands and accepts all provisions of the Plan and the Award Terms, including the Appendices.

In addition, the Participant expressly approves that: (i) participation in the Plan does not constitute an acquired right; (ii) the Plan and participation in the Plan is offered by the Company on a wholly discretionary basis; (iii) participation in the Plan is voluntary; and (iv) neither the Company nor any Subsidiary is responsible for any decrease in the value of the Shares acquired upon exercise of the Stock Option.

Finally, the Participant hereby declares that he or she does not reserve any action or right to bring any claim against the Company for any compensation or damages as a result of his or her participation in the Plan and therefore grant a full and broad release to the Employer, the Company and its other Subsidiaries with respect to any claim that may arise under the Plan.

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Spanish Translation

Declaración de Política.

El otorgamiento de la Opción es unilateral y discrecional y, por lo tanto, la Compañía se reserva el derecho absoluto de modificar y discontinuar el mismo en cualquier momento, sin responsabilidad alguna.

La Compañía, con oficinas registradas ubicadas en 390 Park Avenue, New York, New York, 10022, EE.UU., es únicamente responsable por la administración del Plan, y el otorgamiento de la Opción no establece de forma alguna una relación de trabajo entre el Participante y la Compañía, ya que el Participante está participando en el Plan es sobre una base totalmente comercial, y el único patrón es una Afiliado Mexicana y tampoco establece ningún derecho entre usted y el Patrón.

Reconocimiento del Documento del Plan.

Al aceptar el otorgamiento de la Opción, el Participante reconoce que ha recibido copias del Plan, ha revisado el Plan y los Términos del Otorgamiento en su totalidad, y que entiende y acepta completamente todas las disposiciones contenidas en el Plan y en los Términos del Otorgamiento, incluyendo los Apéndices.

Adicionalmente, el Participante aprueba expresamente que: (i) la participación en el Plan no constituye un derecho adquirido; (ii) el Plan y la participación en el Plan se ofrecen por la Compañía de forma totalmente discrecional; (iii) la participación en el Plan es voluntaria; y (iv) la Compañía, cualquier Filial y el Patrón no son responsables por ninguna disminución en el valor de las Acciones que se adquieran al ejercer la Opción.

Finalmente, el Participante declara que no se reserva ninguna acción o derecho alguno para interponer una reclamación o demanda en contra de la Compañía por compensación, daño o perjuicio alguno como resultado de su participación en el Plan y, por lo tanto, otorga el más amplio y total finiquito al Patrón, a Compañía y sus Filiales en relación con cualquier reclamación o demanda que pudiera surgir de conformidad con el Plan.

NETHERLANDS

There are no country-specific provisions.

NORWAY

There are no country-specific provisions.

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POLAND

Notifications

Exchange Control Information.

Polish residents holding foreign securities (including Shares) and maintaining accounts abroad (including any brokerage account) must report information to the National Bank of Poland on transactions and balances of the securities and cash deposited in such accounts if the value of such securities and cash (calculated individually or together with all other assets/liabilities held abroad) exceeds a specified threshold (currently PLN7,000,000). If required, the reports are due on a quarterly basis on special forms available on the website of the National Bank of Poland. Further, any transfer of funds in excess of a specified threshold (currently €15,000) must be effected through a bank account in Poland. The Participant should maintain evidence of such foreign exchange transactions for five (5) years, in case of a request for their production by the National Bank of Poland.

RUSSIA

Terms and Conditions

U.S. Transaction.

The Participant understands that the grant of the Stock Option is a right to receive Shares if certain conditions are met and that the offer is made by the Company in the United States. Upon exercise of the Stock Option, any Shares to be issued to the Participant shall be delivered to the Participant through a brokerage account in the United States. The Participant is not permitted to sell Shares directly to other Russian legal entities or residents.

Notifications

Exchange Control Information.

Upon the sale of Shares acquired under the Plan, the Participant must repatriate the proceeds of the sale back to Russia within a reasonably short time after receipt. The Participant may remit proceeds to Participant’s foreign currency account at an authorized bank in Russia or in a foreign bank account opened in accordance with Russian exchange control laws. The Participant is encouraged to contact the Participant’s personal advisor before remitting the Participant’s sale proceeds to Russia.

Securities Law Information.

The grant of the Stock Option and the distribution of the Plan and all other materials the Participant may receive regarding participation in the Plan do not constitute an offering or the advertising of securities in Russia. The issuance of Shares pursuant to the Plan has not and will not be registered in Russia and, therefore, the Shares may not be used for an offering or public circulation in Russia. In no event will Shares be delivered to the Participant in Russia; all Shares acquired under the Plan will be maintained on the Participant’s behalf in the United States.

Data Privacy Acknowledgement.

The Participant hereby acknowledges that he or she has read and understands the terms regarding collection, processing and transfer of Data contained in Appendix A to the Award Terms and by participating in the Plan, the Participant agrees to such terms. In this regard, upon request of the Company or the Employer, the Participant agrees to provide an executed data privacy consent form to the Company or the Employer (or any other agreements or consents that may be required by the Company or the Employer) that the Company and/or the Employer may deem necessary to obtain under the data privacy laws of Russia, either now or in the future.

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Labor Law Information.

If the Participant continues to hold Shares after involuntary termination, the Participant may not be eligible to receive unemployment benefits in Russia.

SOUTH AFRICA

Notifications

Tax Reporting Information.

By accepting the Stock Option, the Participant agrees to notify the Employer of the amount of income realized at exercise of the Stock Option. If the Participant fails to advise the Employer of the income at exercise, the Participant may be liable for a fine. The Participant will be responsible for paying any difference between the actual tax liability and the amount withheld.

Exchange Control Information.

The Participant is solely responsible for complying with applicable South African exchange control regulations. Since the exchange control regulations change frequently and without notice, the Participant should consult his or her legal advisor prior to the acquisition or sale of Shares acquired under the Plan to ensure compliance with current regulations. As it is the Participant’s responsibility to comply with South African exchange control laws, neither the Company, the Employer nor any other Subsidiary will be liable for any fines or penalties resulting from the Participant’s failure to comply with applicable laws.

SPAIN

No Entitlement for Claims or Compensation.

The following provisions supplement paragraph A “Termination” of Appendix A:

By accepting the Stock Option, the Participant consents to participation in the Plan and acknowledges that Participant has received a copy of the Plan.

The Participant understands and agrees that, as a condition of the grant of the Stock Option, if the Participant’s employment terminates, unless otherwise provided in the Award Terms or by the Company, any unvested Stock Options shall be forfeited without entitlement to the underlying Shares or to any amount as indemnification in the event of a termination, including, but not limited to: resignation, disciplinary dismissal adjudged to be with cause, disciplinary dismissal adjudged or recognized to be without cause, individual or collective layoff on objective grounds, whether adjudged to be with cause or adjudged or recognized to be without cause, material modification of the terms of employment under Article 41 of the Workers’ Statute, relocation under Article 40 of the Workers’ Statute, Article 50 of the Workers’ Statute, unilateral withdrawal by the Employer, and under Article 10.3 of Royal Decree 1382/1985.

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The Participant understands that the Company has unilaterally, gratuitously and in its sole discretion decided to grant Stock Options under the Plan to individuals who may be Employees of the Company or a Subsidiary. The decision is limited and entered into based upon the express assumption and condition that any grant will not economically or otherwise bind the Company or its Subsidiaries, including the Employer, on an ongoing basis, other than to the extent set forth in these Award Terms. Consequently, the Participant understands that the Stock Option is granted on the assumption and condition that the Stock Option and any Shares issued upon exercise are not part of any employment or service agreement (either with the Company or any Subsidiary, including the Employer) and shall not be considered a mandatory benefit, salary for any purposes (including severance compensation) or any other right whatsoever. Furthermore, the Participant understands and freely accepts that there is no guarantee that any benefit whatsoever shall arise from the grant of the Stock Option, which is gratuitous and discretionary, since the future value of the Stock Option and the underlying Shares is unknown and unpredictable. The Participant also understands that the grant of the Stock Option would not be made but for the assumptions and conditions set forth hereinabove; thus, the Participant understands, acknowledges and freely accepts that, should any or all of the assumptions be mistaken or any of the conditions not be met for any reason, the Stock Option and any right to the underlying Shares shall be null and void.

Notifications

Securities Law Information.

No “offer of securities to the public”, as defined under Spanish law, has taken place or will take place in the Spanish territory with respect to the Stock Option. No public offering prospectus has been nor will be registered with the Comisión Nacional del Mercado de Valores (Spanish Securities Exchange Commission) (“CNMV”). Neither the Plan nor the Award Terms constitute a public offering prospectus and they have not been, nor will they be, registered with the CNMV.

Exchange Control Information.

It is the Participant’s responsibility to comply with exchange control regulations in Spain. The Participant must declare the acquisition of Shares for statistical purposes to the Spanish Direccion General de Comercio e Inversiones (the “DGCI”) of the Ministry of Economy and Competitiveness. In addition, the Participant must also file a Form D-6 with the Directorate of Foreign Transaction each January in which the Shares are owned. The sale of Shares also must be declared on Form D-6 filed with the DGCI in January, unless the sale proceeds exceed the applicable threshold (currently €1,502,530), in which case, the filing is due within one month after the sale.

Foreign Asset/Account Reporting Information.

The Participant is required to declare electronically to the Bank of Spain any securities accounts (including brokerage accounts held abroad), as well as the Shares held in such accounts if the value of the transactions during the prior tax year or the balances in such accounts as of December 31 of the prior tax year exceed €1,000,000.

Further, to the extent that the Participant holds Shares and/or has bank accounts outside Spain with a value in excess of €50,000 (for each type of asset) as of December 31, the Participant will be required to report information on such assets on his or her tax return (tax form 720) for such year. After such Shares and/or accounts are initially reported, the reporting obligation will apply for subsequent years only if the value of any previously-reported Shares or accounts increases by more than €20,000 or if the Participant sells or otherwise disposes of any previously-reported Shares or accounts.

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SURINAME

Terms and Conditions

Option Exercise.

Notwithstanding anything to the contrary in the Award Terms or the Plan, if deemed to be necessary by the Company to comply with applicable laws, the Participant will be required to exercise the Stock Option using a cashless sell-all exercise method whereby all Shares subject to the exercised Stock Option will be sold immediately upon exercise and the proceeds of sale, less the exercise price, any Tax-Related Items and broker’s fees or commissions, will be remitted to the Participant in accordance with any applicable exchange control laws and regulations. In this case, the Participant will not be permitted to hold Shares after exercise. The Company reserves the right to provide additional methods of exercise to the Participant depending on the development of local law.

SWITZERLAND

Notifications

Securities Law Information.

The grant of the Stock Option under the Plan is considered a private offering in Switzerland and is, therefore, not subject to registration in Switzerland. Neither this document nor any other material related to the Stock Option constitutes a prospectus as such term is understood pursuant to Article 652a of the Swiss Code of Obligations, and neither this document nor any other materials related to the Stock Option may be publicly distributed or otherwise made publicly available in Switzerland.

UNITED KINGDOM

Terms and Conditions

Responsibility for Taxes. The following supplements paragraph B “Responsibility for Taxes” of Appendix A.

The Participant shall pay to the Company or the Employer any amount of income tax that the Company or the Employer may be required to account to Her Majesty’s Revenue & Customs (“HMRC”) with respect to the event giving rise to the income tax (the “Taxable Event”) that cannot be satisfied by the means described in paragraph B of Appendix A. If payment or withholding of the income tax due is not made within ninety (90) days of the end of the U.K. tax year in which the Taxable Event occurs or such other period as required under U.K. law (the “Due Date”), the Participant agrees that the amount of any uncollected income tax shall constitute a loan owed by the Participant to the Employer, effective on the Due Date. The Participant agrees that the loan will bear interest at the then-current HMRC Official Rate, it will be immediately due and repayable, and the Company or the Employer may recover it at any time thereafter by any of the means referred to

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in paragraph B of Appendix A. If the Participant fails to comply with his or her obligations in connection with the income tax as described in this section, the Company may refuse to deliver the Shares acquired under the Plan.

Notwithstanding the foregoing, if the Participant is a Director or executive officer of the Company (within the meaning of Section 13(k) of the U.S. Securities Exchange Act of 1934), the Participant shall not be eligible for a loan from the Company to cover income tax. In the event that the Participant is a Director or executive officer and income tax is not collected from or paid by the Participant by the Due Date, the amount of any uncollected income tax may constitute a benefit to the Participant on which additional income tax and National Insurance contributions (“NICs”) may be payable. The Participant will be responsible for reporting and paying any income tax due on this additional benefit directly to HMRC under the self-assessment regime and for reimbursing the Company or the Employer for the value of any employee NICs due on this additional benefit, which the Company or the Employer may recover by any of the means referred to in paragraph B of Appendix A.

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EX-10.(E)

Exhibit 10(e)

ALCOA INC.

TERMS AND CONDITIONS FOR SPECIAL RETENTION AWARDS

Effective July 22, 2016

These terms and conditions, including Appendices A and B attached hereto, (the “Award Terms”) are authorized by the Compensation and Benefits Committee of the Board of Directors. They are deemed to be incorporated into and form a part of every special retention Award (“Special Retention Award”) issued on or after July 22, 2016 under the 2013 Alcoa Stock Incentive Plan, as amended and restated and as may be further amended from time to time (the “Plan”).

Terms that are defined in the Plan have the same meanings in the Award Terms.

General Terms and Conditions

1. Special Retention Awards are subject to the provisions of the Plan and the provisions of the Award Terms. If the Plan and the Award Terms are inconsistent, the provisions of the Plan will govern. Interpretations of the Plan and the Award Terms by the Committee are binding on the Participant and the Company. A Special Retention Award is an undertaking by the Company to issue the number of Shares indicated in the notice of the Special Retention Award on the date the Special Retention Award vests, subject to the fulfillment of certain conditions, except to the extent otherwise provided in the Plan or herein.

Vesting and Payment

2. A Special Retention Award vests on the third anniversary date of the grant date, and will be paid to the Participant in Shares on the vesting date or within 90 days thereafter.

3. As a condition to a Special Retention Award vesting, a Participant must remain an active employee of the Company or a Subsidiary through the date of vesting. Except as provided in paragraph 5, if a Participant’s employment with the Company (including its Subsidiaries) is terminated prior to the vesting date of the Special Retention Award, the Special Retention Award is forfeited and is automatically canceled.

4. Special Retention Awards will be paid by the issuance to the Participant of Shares covered by the Special Retention Award. Prior to issuance of the Shares, the Participant has no voting rights. Dividend equivalents will accrue on Special Retention Awards, unless the Committee determines that no dividend equivalents may be accrued or paid. Dividend equivalents that accrue on Special Retention Awards will be equal to the common stock dividend per Share payable on the Company’s common stock multiplied by the number of Shares covered by the Special Retention Award. Notwithstanding any provision herein to the contrary, no dividends or dividend equivalents will be paid on Special Retention Awards that have not vested.

5. The following are exceptions to the vesting rules:

• Involuntary Termination without Cause: An unvested Special Retention Award held by a Participant who is involuntarily terminated without Cause (as defined below) from employment with the Company or a Subsidiary during the vesting period is not forfeited in whole but only in part upon termination of employment. The portion of the Special Retention Award that is not forfeited vests on the original stated vesting date set forth in paragraph 2 and is calculated based on a proportionate share of the time during the vesting period that the Participant remained actively employed with the Company or a Subsidiary, with the remaining portion being automatically forfeited. The proportionate share is computed on the basis of the actual number of days actively employed after the date of grant over a total vesting period of three years of 360 days each (or a total vesting period of 1,080 days). For example, a Participant who is involuntarily terminated without Cause from employment with the Company (or a Subsidiary) at the end of the first year of the three-year vesting period will receive one-third of the Shares upon vesting, with the remaining two-thirds of the Shares being automatically forfeited upon termination.

For this purpose, if the Participant participates in the Alcoa Inc. Change in Control Severance Plan, “Cause” shall have the meaning set forth in such plan. If the Participant does not participate in the Alcoa Inc. Change in Control Severance Plan, “Cause” means (i) the willful and continued failure by the Participant to substantially perform the Participant’s duties with the Employer that has not been cured within thirty (30) days after a written demand for substantial performance is delivered to the Participant by the Board or the Participant’s direct supervisor, which demand specifically identifies the manner in which the Participant has not substantially performed the Participant’s duties, (ii) the willful engaging by the Participant in conduct which is demonstrably and materially injurious to the Company or a Subsidiary, monetarily or otherwise; (iii) the Participant’s fraud or acts of dishonesty relating to the Company or any of its Subsidiaries, or (iv) the Participant’s conviction of any misdemeanor relating to the affairs of the Company or any of its Subsidiaries or indictment for any felony. For purposes of clauses (i) and (ii) of this definition, no act, or failure to act, on the Participant’s part shall be deemed “willful” unless done, or omitted to be done, by the Participant not in good faith and without reasonable belief that the Participant’s act, or failure to act, was in the best interest of the Company.

• Death or Disability: An unvested Special Retention Award held by a Participant, who dies while an employee or who is permanently and totally disabled while an employee, is not forfeited but vests on the original stated vesting date set forth in paragraph 2.

A Participant is deemed to be permanently and totally disabled if the Participant is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than 12 months. A Participant shall not be considered to be permanently and totally disabled unless the Participant furnishes proof of the existence thereof in such form and manner, and at such times, as the Company may require. In the event of a dispute, the determination whether a Participant is permanently and totally disabled will be made by the Committee or its delegate.

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• Change in Control: A Special Retention Award vests if a Replacement Award is not provided following certain Change in Control events, as described in the Plan. If the Change in Control qualifies as a “change in control event” within the meaning of Treas. Reg. § 1.409-3(i)(5), the vested Special Retention Award will be paid to the Participant within 30 days following the Change in Control. If the Change in Control does not so qualify, the vested Special Retention Award will be paid to the Participant on the original stated vesting date set forth in paragraph 2.

• Termination Following Change in Control: As further described in the Plan, if a Replacement Award is provided following a Change in Control, but within 24 months of such Change in Control the Participant’s employment is terminated without Cause (as defined in the Alcoa Inc. Change in Control Severance Plan) or by the Participant for Good Reason (as defined in the Alcoa Inc. Change in Control Severance Plan), the Replacement Award will vest and will be paid to the Participant on the original stated vested date set forth in paragraph 2.

Taxes

6. All taxes required to be withheld under applicable tax laws in connection with a Special Retention Award must be paid by the Participant at the appropriate time under applicable tax laws. The Company may satisfy applicable tax withholding obligations by any of the means set forth in Section 15(l) of the Plan, but will generally withhold from the Shares to be issued upon payment of the Special Retention Award that number of Shares with a fair market value on the vesting date equal to the taxes required to be withheld at the minimum required rates or, to the extent permitted under applicable accounting principles, at up to the maximum individual tax rate for the applicable tax jurisdiction, which include, for Participants subject to taxation in the United States, applicable income taxes, federal and state unemployment compensation taxes and FICA/FUTA taxes. Notwithstanding the foregoing, if the Participant is subject to the short-swing profit rules of Section 16(b) of the Securities Exchange Act of 1934, as amended, the Company will withhold Shares from the Shares to be issued upon payment of the Special Retention Award, as described herein, and will not use the other means set forth in the Plan unless pursuant to an election by the Participant or in the event that withholding in Shares is problematic under applicable tax or securities law or has materially adverse accounting consequences.

Beneficiaries

7. If permitted by the Company, Participants will be entitled to designate one or more beneficiaries to receive all Special Retention Awards that have not yet vested at the time of death of the Participant. All beneficiary designations will be on beneficiary designation forms approved for the Plan. Copies of the form are available from the Communications Center on Merrill Lynch’s OnLine^® website www.benefits.ml.com.

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8. Beneficiary designations on an approved form will be effective at the time received by the Communications Center on Merrill Lynch’s OnLine^® website www.benefits.ml.com. A Participant may revoke a beneficiary designation at any time by written notice to the Communications Center on Merrill Lynch’s OnLine^® website www.benefits.ml.com or by filing a new designation form. Any designation form previously filed by a Participant will be automatically revoked and superseded by a later-filed form.

9. A Participant will be entitled to designate any number of beneficiaries on the form, and the beneficiaries may be natural or corporate persons.

10. The failure of any Participant to obtain any recommended signature on the form will not prohibit the Company from treating such designation as valid and effective. No beneficiary will acquire any beneficial or other interest in any Special Retention Award prior to the death of the Participant who designated such beneficiary.

11. Unless the Participant indicates on the form that a named beneficiary is to receive Special Retention Awards only upon the prior death of another named beneficiary, all beneficiaries designated on the form will be entitled to share equally in the Special Retention Awards upon vesting. Unless otherwise indicated, all such beneficiaries will have an equal, undivided interest in all such Special Retention Awards.

12. Should a beneficiary die after the Participant but before the Special Retention Award is paid, such beneficiary’s rights and interest in the Special Retention Award will be transferable by the beneficiary’s last will and testament or by the laws of descent and distribution. A named beneficiary who predeceases the Participant will obtain no rights or interest in a Special Retention Award, nor will any person claiming on behalf of such individual. Unless otherwise specifically indicated by the Participant on the beneficiary designation form, beneficiaries designated by class (such as “children,” “grandchildren” etc.) will be deemed to refer to the members of the class living at the time of the Participant’s death, and all members of the class will be deemed to take “per capita.”

13. If a Participant does not designate a beneficiary or if the Company does not permit a beneficiary designation, the Special Retention Award that has not yet vested or been paid at the time of death of the Participant will vest and be paid to the Participant’s legal heirs pursuant to the Participant’s last will and testament or by the laws of descent and distribution.

Adjustments

14. In the event of an Equity Restructuring, the Committee will equitably adjust the Special Retention Award as it deems appropriate to reflect the Equity Restructuring, which may include (i) adjusting the number and type of securities subject to the Special Retention Award; and (ii) adjusting the terms and conditions of the Special Retention Award. The adjustments provided under this paragraph 14 will be nondiscretionary and final and binding on all interested parties, including the affected Participant and the Company; provided that the Committee will determine whether an adjustment is equitable.

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Repayment/Forfeiture

15. As an additional condition of receiving the Special Retention Award, the Participant agrees that the Special Retention Award and any benefits or proceeds the Participant may receive hereunder shall be subject to forfeiture and/or repayment to the Company to the extent required (i) under the terms of any recoupment or “clawback” policy adopted by the Company to comply with applicable laws or with the Company’s Corporate Governance Guidelines or other similar requirements, as such policy may be amended from time to time (and such requirements shall be deemed incorporated into the Award Terms without the Participant’s consent) or (ii) to comply with any requirements imposed under applicable laws and/or the rules and regulations of the securities exchange or inter-dealer quotation system on which the Shares are listed or quoted, including, without limitation, pursuant to Section 954 of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010. Further, if the Participant receives any amount in excess of what the Participant should have received under the terms of the Special Retention Award for any reason (including without limitation by reason of a financial restatement, mistake in calculations or administrative error), all as determined by the Committee, then the Participant shall be required to promptly repay any such excess amount to the Company.

Miscellaneous Provisions

16. Stock Exchange Requirements; Applicable Laws. Notwithstanding anything to the contrary in the Award Terms, no Shares issuable upon vesting of the Special Retention Awards, and no certificate representing all or any part of such Shares, shall be issued or delivered if, in the opinion of counsel to the Company, such issuance or delivery would cause the Company to be in violation of, or to incur liability under, any securities law, or any rule, regulation or procedure of any U.S. national securities exchange upon which any securities of the Company are listed, or any listing agreement with any such securities exchange, or any other requirement of law or of any administrative or regulatory body having jurisdiction over the Company or a Subsidiary.

17. Shareholder Rights. No person or entity shall be entitled to vote, receive dividends or be deemed for any purpose the holder of any Shares until the Special Retention Award shall have vested and been paid in the form of Shares in accordance with the provisions of the Award Terms.

18. Notices. Any notice required or permitted under the Award Terms shall be in writing and shall be deemed sufficient when delivered personally or sent by confirmed email, telegram, or fax or five days after being deposited in the mail, as certified or registered mail, with postage prepaid, and addressed to the Company at the Company’s principal corporate offices or to the Participant at the address maintained for the Participant in the Company’s records or, in either case, as subsequently modified by written notice to the other party.

19. Severability and Judicial Modification. If any provision of the Award Terms is held to be invalid or unenforceable under the applicable laws of any country, state, province, territory or other political subdivision or the Company elects not to enforce such restriction, the remaining provisions shall remain in full force and effect and the invalid or unenforceable provision shall be modified only to the extent necessary to render that provision valid and enforceable to the fullest extent permitted by law. If the invalid or unenforceable provision cannot be, or is not, modified, that provision shall be severed from the Award Terms and all other provisions shall remain valid and enforceable.

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20. Successors. The Award Terms shall be binding upon and inure to the benefit of the Company and its successors and assigns, on the one hand, and the Participant and his or her heirs, beneficiaries, legatees and personal representatives, on the other hand.

21. Appendices. Notwithstanding any provisions in the Award Terms, for Participants residing and/or working outside the United States, the Special Retention Award shall be subject to the additional terms and conditions set forth in Appendix A to the Award Terms and to any special terms and conditions for the Participant’s country set forth in Appendix B to the Award Terms. Moreover, if the Participant relocates outside the United States or relocates between the countries included in Appendix B, the additional terms and conditions set forth in Appendix A and the special terms and conditions for such country set forth in Appendix B will apply to the Participant, to the extent the Company determines that the application of such terms and conditions is necessary or advisable for legal or administrative reasons. The Appendices constitute part of the Award Terms.

22. Imposition of Other Requirements. The Company reserves the right to impose other requirements on the Participant’s participation in the Plan, on the Special Retention Award and on any Shares acquired under the Plan, to the extent the Company determines it is necessary or advisable for legal or administrative reasons, and to require the Participant to sign any additional agreements or undertakings that may be necessary to accomplish the foregoing.

23. Compliance with Code Section 409A. It is intended that the Special Retention Award granted pursuant to the Award Terms be compliant with Section 409A of the Code and the Award Terms shall be interpreted, construed and operated to reflect this intent. Notwithstanding the foregoing, the Award Terms and the Plan may be amended at any time, without the consent of any party, to the extent necessary or desirable to satisfy any of the requirements under Section 409A of the Code, but the Company shall not be under any obligation to make any such amendment. Further, the Company and its Subsidiaries do not make any representation to the Participant that the Special Retention Award granted pursuant to the Award Terms satisfies the requirements of Section 409A of the Code, and the Company and its Subsidiaries will have no liability or other obligation to indemnify or hold harmless the Participant or any other party for any tax, additional tax, interest or penalties that the Participant or any other party may incur in the event that any provision of the Award Terms or any amendment or modification thereof or any other action taken with respect thereto, is deemed to violate any of the requirements of Section 409A of the Code.

24. Waiver. A waiver by the Company of breach of any provision of the Award Terms shall not operate or be construed as a waiver of any other provision of the Award Terms, or of any subsequent breach by the Participant or any other Participant.

25. No Advice Regarding Award. The Company is not providing any tax, legal or financial advice, nor is the Company making any recommendations regarding the Participant’s participation in the Plan, or the Participant’s acquisition or sale of the underlying Shares. The Participant is hereby advised to consult with the Participant’s own personal tax, legal and financial advisors regarding the Participant’s participation in the Plan before taking any action related to the Plan.

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26. Governing Law and Venue. As stated in the Plan, the Special Retention Award and the provisions of the Award Terms and all determinations made and actions taken thereunder, to the extent not otherwise governed by the laws of the United States, shall be governed by the laws of the State of New York, United States of America, without reference to principles of conflict of laws, and construed accordingly. The jurisdiction and venue for any disputes arising under, or any actions brought to enforce (or otherwise relating to), the Special Retention Award will be exclusively in the courts in the State of New York, County of New York, including the Federal Courts located therein (should Federal jurisdiction exist).

27. Electronic Delivery and Acceptance. The Company may, in its sole discretion, decide to deliver any documents related to current or future participation in the Plan by electronic means. The Participant hereby consents to receive such documents by electronic delivery and agrees to participate in the Plan through an on-line or electronic system established and maintained by the Company or a third party designated by the Company.

28. Entire Agreement. The Award Terms and the Plan embody the entire understanding and agreement of the parties with respect to the subject matter hereof, and no promise, condition, representation or warranty, express or implied, not stated or incorporated by reference herein, shall bind either party hereto.

Acceptance of Award

29. In accordance with Section 15(c) of the Plan (as in effect at the grant date), the Participant may reject the Special Retention Award by notifying the Company within 30 days of the grant date that he or she does not accept the Special Retention Award. The Participant’s acceptance of the Special Retention Award constitutes the Participant’s acceptance of and agreement with the Award Terms. Notwithstanding the foregoing, if required by the Company, the Participant will provide a signed copy of the Award Terms in such manner and within such timeframe as may be requested by the Company. The Company has no obligation to issue Shares to the Participant if the Participant does not accept the Special Retention Award.

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APPENDIX A

TO THE ALCOA, INC.

2013 Stock Incentive Plan

Terms and Conditions for Special Retention Awards

For Non-U.S. Participants

This Appendix A contains additional (or, if so indicated, different) terms and conditions that govern the Special Retention Awards if the Participant resides and/or works outside of the United States. Capitalized terms used but not defined herein shall have the same meanings assigned to them in the Plan and the Terms and Conditions for Special Retention Awards (the “Terms and Conditions”).

A. Termination. This provision supplements paragraph 3 of the Terms and Conditions.

The Company will determine when the Participant is no longer providing services for purposes of the Special Retention Awards (including whether the Participant may still be considered to be providing services while on a leave of absence).

B. Responsibility for Taxes. This provision replaces paragraph 6 of the Terms and Conditions.

The Participant acknowledges that, regardless of any action taken by the Company or, if different, the Subsidiary that employs the Participant (the “Employer”), the ultimate liability for all income tax, social insurance, payroll tax, fringe benefits tax, payment on account or other tax-related items related to the Participant’s participation in the Plan and legally applicable to the Participant (“Tax-Related Items”) is and remains the Participant’s responsibility and may exceed the amount actually withheld by the Company or the Employer. The Participant further acknowledges that the Company and/or the Employer (a) make no representations or undertakings regarding the treatment of any Tax-Related Items in connection with any aspect of these Special Retention Awards, including, but not limited to, the grant, vesting or settlement of Special Retention Awards, the subsequent sale of Shares acquired pursuant to the Special Retention Award and the receipt of any dividends or dividend equivalents; and (b) do not commit to and are under no obligation to structure the terms of the Special Retention Awards or any aspect of the Special Retention Awards to reduce or eliminate the Participant’s liability for Tax-Related Items or achieve any particular tax result. The Participant shall not make any claim against the Company, the Employer or any other Subsidiary, or their respective board, officers or employees related to Tax-Related Items arising from this Award. Furthermore, if the Participant has become subject to tax in more than one jurisdiction, the Participant acknowledges that the Company and/or the Employer (or former employer, as applicable) may be required to withhold or account for Tax-Related Items in more than one jurisdiction.

Prior to any relevant taxable or tax withholding event, as applicable, the Participant will pay or make adequate arrangements satisfactory to the Company and/or the Employer to satisfy all Tax-Related Items. In this regard, the Participant authorizes the Company and/or the Employer, or their respective agents, at their discretion, to satisfy their withholding obligations with regard to all Tax-Related Items by: (i) requiring a cash payment from the Participant; (ii) withholding from the Participant’s wages or other cash compensation paid to the Participant by the Company and/or the

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Employer, (iii) withholding from the proceeds of the sale of Shares acquired pursuant to the Special Retention Awards, either through a voluntary sale or through a mandatory sale arranged by the Company (on the Participant’s behalf pursuant to this authorization without further consent); and/or (iv) withholding from the Shares subject to Special Retention Awards.

Depending on the withholding method, the Company may withhold or account for Tax-Related Items by considering applicable minimum statutory withholding rates or other applicable withholding rates, including maximum applicable rates, in which case the Participant will receive a refund of any over-withheld amount in cash and will have no entitlement to the Share equivalent. If the obligation for Tax-Related Items is satisfied by withholding in Shares, the Participant is deemed, for tax purposes, to have been issued the full number of Shares subject to the vested Special Retention Awards, notwithstanding that a number of the Shares is held back solely for the purpose of paying the Tax-Related Items.

Finally, the Participant shall pay to the Company and/or the Employer any amount of Tax-Related Items that the Company and/or the Employer may be required to withhold or account for as a result of the Participant’s participation in the Plan that cannot be satisfied by the means previously described. The Company may refuse to issue or deliver the Shares or the proceeds of the sale of Shares if the Participant fails to comply with his or her obligations in connection with the Tax-Related Items.

C. Nature of Award. In accepting the Special Retention Awards, the Participant acknowledges, understands and agrees that:

a. the Plan is established voluntarily by the Company, is discretionary in nature and may be modified, amended, suspended, or terminated by the Company at any time, to the extent permitted by the Plan;

b. this Special Retention Award is voluntary and occasional and does not create any contractual or other right to receive future Special Retention Awards, or benefits in lieu of Special Retention Awards, even if Special Retention Awards have been granted in the past;

c. all decisions with respect to future Special Retention Awards or other Awards, if any, will be at the sole discretion of the Company;

d. this Special Retention Award and the Participant’s participation in the Plan shall not create a right to, or be interpreted as forming an employment or service contract with the Company and shall not interfere with the ability of the Employer to terminate the Participant’s employment contract (if any) at any time;

e. the Participant’s participation in the Plan is voluntary;

f. this Special Retention Award and the Shares acquired under the Plan, and the income and value of same, are not part of normal or expected compensation or salary for any purposes, including, without limitation, calculating any severance, resignation, termination, redundancy, dismissal, end-of-service payments, bonuses, long-service awards, pension or retirement or welfare benefits or similar payments;

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g. the future value of the Shares subject to the Special Retention Award is unknown and cannot be predicted with certainty;

h. unless otherwise agreed with the Company, Special Retention Awards and the Shares acquired under the Plan, and the income and value of same, are not granted as consideration for, or in connection with, the service the Participant may provide as a director of any Subsidiary;

i. no claim or entitlement to compensation or damages shall arise from forfeiture of any portion of this Special Retention Award resulting from termination of the Participant’s employment relationship (for any reason whatsoever and regardless of whether later found to be invalid or in breach of applicable laws in the jurisdiction where the Participant is employed or the terms of the Participant’s employment agreement, if any), and, in consideration of this Special Retention Award to which the Participant is not otherwise entitled, the Participant irrevocably agrees never to institute any claim against the Company, the Employer and any other Subsidiary, waives his or her ability, if any, to bring any such claim, and releases the Company, the Employer and all other Subsidiaries from any such claim; if, notwithstanding the foregoing, any such claim is allowed by a court of competent jurisdiction, then, by participating in the Plan, the Participant shall be deemed irrevocably to have agreed not to pursue such claim and agrees to execute any and all documents necessary to request dismissal or withdrawal of such claims;

j. unless otherwise provided in the Plan or by the Company in its discretion, this Special Retention Award and the benefits under the Plan evidenced by these Award Terms do not create any entitlement to have this Special Retention Award or any such benefits transferred to, or assumed by, another company nor to be exchanged, cashed out or substituted for, in connection with any corporate transaction affecting the Shares; and

k. neither the Company, the Employer nor any other Subsidiary shall be liable for any foreign exchange rate fluctuation between the Participant’s local currency and the United States Dollar that may affect the value of the Special Retention Awards or of any amounts due to the Participant pursuant to the Special Retention Awards or the subsequent sale of any Shares acquired under the Plan.

D. Data Privacy. The Participant hereby explicitly and unambiguously consents to the collection, use and transfer, in electronic or other form, of the Participant’s personal data as described in these Award Terms and any other grant materials by and among, as applicable, the Company, the Employer and any other Subsidiary for the exclusive purpose of implementing, administering and managing the Participant’s participation in the Plan.

The Participant understands that the Company and the Employer may hold certain personal information about the Participant, including, but not limited to, the Participant’s name, home address and telephone number, email address, date of birth, social insurance number, passport or

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other identification number, salary, nationality, job title, any shares of stock or directorships held in the Company, details of all Special Retention Awards or any other entitlement to shares of stock awarded, canceled, exercised, vested, unvested or outstanding in the Participant’s favor (“Data”), for the exclusive purpose of implementing, administering and managing the Plan.

The Participant understands that Data may be transferred to Merrill Lynch, which is assisting the Company with the implementation, administration and management of the Plan. The Participant understands that the recipients of Data may be located in the United States or elsewhere, and that the recipients’ country (e.g., the United States) may have different data privacy laws and protections than the Participant’s country. The Participant understands that the Participant may request a list with the names and addresses of any potential recipients of Data by contacting the Participant’s local human resources representative. The Participant authorizes the Company, Merrill Lynch and any other possible recipients which may assist the Company (presently or in the future) with implementing, administering and managing the Plan to receive, possess, use, retain and transfer Data, in electronic or other form, for the sole purpose of implementing, administering and managing the Participant’s participation in the Plan. The Participant understands that Data will be held only as long as is necessary to implement, administer and manage the Participant’s participation in the Plan. The Participant understands that the Participant may, at any time, view Data, request additional information about the storage and processing of Data, require any necessary amendments to Data or refuse or withdraw the consents herein, in any case without cost, by contacting in writing the Participant’s local human resources representative. Further, the Participant understands that the Participant is providing the consents herein on a purely voluntary basis. If the Participant does not consent, or if the Participant later seeks to revoke the Participant’s consent, the Participant’s employment and career with the Employer will not be affected; the only consequence of refusing or withdrawing the Participant’s consent is that the Company would not be able to grant this Special Retention Award or other Awards to the Participant or administer or maintain such Awards. Therefore, the Participant understands that refusing or withdrawing the Participant’s consent may affect the Participant’s ability to participate in the Plan. For more information on the consequences of the Participant’s refusal to consent or withdrawal of consent, the Participant understands that the Participant may contact the Participant’s local human resources representative.

E. Language. If the Participant has received these Award Terms, or any other document related to this Special Retention Award and/or the Plan translated into a language other than English and if the meaning of the translated version is different than the English version, the English version will control.

F. Insider Trading Restrictions/Market Abuse Laws. The Participant acknowledges that, depending on his or her country, the Participant may be subject to insider trading restrictions and/or market abuse laws, which may affect his or her ability to acquire or sell Shares or rights to Shares under the Plan during such times as the Participant is considered to have “inside information” regarding the Company (as defined by applicable laws in his or her country). Any restrictions under these laws or regulations are separate from and in addition to any restrictions that may be imposed under any applicable Company insider trading policy. The Participant acknowledges that it is his or her responsibility to comply with any applicable restrictions, and the Participant should consult his or her personal advisor on this matter.

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G. Foreign Asset/Account Reporting Requirements, Exchange Controls and Tax Requirements. The Participant acknowledges that his or her country may have certain foreign asset and/or account reporting requirements and exchange controls which may affect his or her ability to acquire or hold Shares under the Plan or cash received from participating in the Plan (including from any dividends received or sale proceeds arising from the sale of Shares) in a brokerage or bank account outside his or her country. The Participant understands that he or she may be required to report such accounts, assets or transactions to the tax or other authorities in his or her country. The Participant also may be required to repatriate sale proceeds or other funds received as a result of the Participant’s participation in the Plan to his or her country through a designated bank or broker and/or within a certain time after receipt. The Participant acknowledges that it is his or her responsibility to be compliant with all such requirements, and that the Participant should consult his or her personal legal and tax advisors, as applicable, to ensure the Participant’s compliance.

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APPENDIX B

TO THE ALCOA, INC.

2013 Stock Incentive Plan

Terms and Conditions for Special Retention Awards

For Non-U.S. Participants

Capitalized terms used but not defined in this Appendix B have the meanings set forth in the Plan and the Terms and Conditions for Special Retention Awards (the “Terms and Conditions”).

Terms and Conditions

This Appendix B includes special terms and conditions that govern Special Retention Awards if the Participant resides and/or works in one of the countries listed below.

If the Participant is a citizen or resident of a country other than the country in which the Participant is currently residing and/or working, or if the Participant transfers to another country after the grant of Special Retention Awards or is considered a resident of another country for local law purposes, the Committee shall, in its discretion, determine to what extent the special terms and conditions contained herein shall be applicable to the Participant.

Notifications

This Appendix B also includes information regarding exchange controls, tax and certain other issues of which the Participant should be aware with respect to participation in the Plan. The information is based on the securities, exchange control, tax and other laws in effect in the respective countries as of January 2016. Such laws are often complex and change frequently. As a result, the Company strongly recommends that the Participant not rely on the information in this Appendix B as the only source of information relating to the consequences of participation in the Plan because the information may be out of date at the time the Participant sells Shares acquired under the Plan.

In addition, the information contained herein is general in nature and may not apply to the Participant’s particular situation and the Company is not in a position to assure the Participant of any particular result. Accordingly, the Participant should seek appropriate professional advice as to how the relevant laws in the Participant’s country may apply to his or her situation.

Finally, if the Participant is a citizen or resident of a country other than the country in which the Participant currently works and/or resides, or if the Participant transfers to another country after the grant of the Special Retention Award, or is considered a resident of another country for local law purposes, the information contained herein may not be applicable to the Participant in the same manner.

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Australia

Notifications

Exchange Control Information.

Exchange control reporting is required for cash transactions exceeding A$10,000 and for international fund transfers. If an Australian bank is assisting with the transaction, the bank will file the report on the Participant’s behalf.

Tax Information.

The Plan is a plan to which Subdivision 83A-C of the Income Tax Assessment Act 1997 (Cth) applies (subject to conditions in the Act).

Belgium

Notifications

Foreign Asset/Account Reporting Information.

If the Participant is a Belgian resident, the Participant is required to report any bank accounts opened and maintained outside of Belgium (e.g., brokerage accounts opened in connection with the Plan) on his or her annual tax return. In a separate report, the Participant is required to provide the National Bank of Belgium with certain details regarding such foreign accounts (including the account number, bank name and country in which any such account was opened). This report, as well as additional information on how to complete it, can be found on the website of the National Bank of Belgium, www.nbb.be, under Kredietcentrales / Centrales des crédits caption. The Participant should consult with his or her personal tax advisor to determine his or her personal reporting obligations.

Brazil

Terms and Conditions

Compliance with Law.

By accepting the Special Retention Award, the Participant acknowledges that he or she agrees to comply with applicable Brazilian laws and to pay any and all applicable taxes associated with the vesting of Special Retention Awards, the sale of the Shares acquired under the Plan and the receipt of any dividends.

Acknowledgement of Nature of the Grant. This provision supplements paragraph C “Nature of Award” of Appendix A.

By accepting the Special Retention Awards, the Participant agrees that he or she is making an investment decision, the Shares will be issued to the Participant only if the vesting conditions are met and any necessary services are rendered by the Participant over the vesting period, and the value of the underlying Shares is not fixed and may increase or decrease in value over the vesting period without compensation to the Participant.

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Notifications

Exchange Control Information.

If the Participant is a resident of or domiciled in Brazil, he or she will be required to submit an annual declaration of assets and rights held outside of Brazil to the Central Bank of Brazil if the aggregate value of the assets and rights is equal to or greater than US$100,000. If such amount exceeds US$100,000,000, the declaration must be submitted quarterly. Assets and rights that must be reported include Shares acquired under the Plan.

Tax on Financial Transactions (IOF).

Repatriation of funds (e.g., sale proceeds) into Brazil and the conversion of USD into BRL associated with such fund transfers may be subject to the Tax on Financial Transactions. It is the Participant’s responsibility to comply with any applicable Tax on Financial Transactions arising from the Participant’s participation in the Plan. The Participant should consult with his or her personal tax advisor for additional details.

Canada

Terms and Conditions

Award Settled Only in Shares.

Notwithstanding any discretion in the Plan, the Special Retention Award shall be settled in Shares only. The Participant is not entitled to receive a cash payment pursuant to the Award.

Termination of Service. The following provision replaces paragraph A “Termination” of Appendix A.

For purposes of the Special Retention Award, the Participant’s employment relationship will be considered terminated (regardless of the reason for such termination and whether or not later found to be invalid or in breach of Canadian laws or the terms of the Participant’s employment agreement, if any) effective as of the date that is the earlier of (i) the date of the Participant’s termination, (ii) the date the Participant receives notice of termination, or (iii) the date the Participant is no longer actively providing service and will not be extended by any notice period (e.g., active service would not include any contractual notice period or any period of “garden leave” or similar period mandated under Canadian laws or the terms of the Participant’s employment agreement, if any). Unless otherwise expressly provided in these Award Terms or determined by the Company, the Participant’s right to vest in the Special Retention Awards, if any, will terminate on such date. The Committee shall have the exclusive discretion to determine when the Participant is no longer actively providing service for purposes of the Special Retention Award (including whether the Participant may still be considered to be providing services while on a leave of absence).

The Following Provisions Apply for Participants Resident in Quebec:

Consent to Receive Information in English.

The Participant acknowledges that it is the express wish of the parties that these Award Terms, as well as all documents, notices and legal proceedings entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be written in English.

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Les parties reconnaissent avoir exigé la rédaction en anglais de Conditions d’attribution, ainsi que de tous documents, avis et procédures judiciaires, exécutés, donnés ou intentés en vertu de, ou liés directement ou indirectement à, la présente convention.

Authorization to Release and Transfer Necessary Personal Information. The following provision supplements paragraph D “Data Privacy” of Appendix A.

The Participant hereby authorizes the Company and the Company’s representatives to discuss with and obtain all relevant information from all personnel, professional or not, involved in the administration and operation of the Plan. The Participant further authorizes the Company, any Subsidiary and the administrator of the Plan to disclose and discuss the Plan with their advisors. The Participant further authorizes the Company and any Subsidiary to record such information and to keep such information in the Participant’s Employee file.

Notifications

Securities Law Information.

The Participant acknowledges that he or she is permitted to sell the Shares acquired under the Plan through the designated broker appointed by the Company, provided the sale of the Shares takes place outside of Canada through facilities of a stock exchange on which the Shares are listed (i.e., the NYSE).

Foreign Asset/Account Reporting Information.

Canadian residents are required to report to the tax authorities any foreign property on form T1135 (Foreign Income Verification Statement) if the total cost of the foreign property exceeds C$100,000 at any time in the year. The form must be filed by April 30 of the following year. Special Retention Awards must be reported—generally at a nil cost—if the C$100,000 cost threshold is exceeded because of other foreign property the Participant holds. If Shares are acquired, their cost generally is the adjusted cost base (“ACB”) of the Shares. The ACB would normally equal the fair market value of the Shares at vesting, but if the Participant owns other Shares, this ACB may have to be averaged with the ACB of the other Shares. The Participant should consult with his or her personal legal advisor to ensure compliance with applicable reporting obligations.

China

Terms and Conditions

The following terms and conditions will apply to Participants who are subject to exchange control restrictions and regulations in the People’s Republic of China (“PRC”), including the requirements imposed by the State Administration of Foreign Exchange (“SAFE”), as determined by the Company in its sole discretion:

Termination of Employment.

Due to legal restrictions in China, the Participant agrees that the Company reserves the right to require the sale of any Shares acquired at vesting of the Special Retention Awards upon the termination of the Participant’s employment for any reason. The Participant hereby authorizes the sale of all Shares issued to the Participant as soon as administratively practicable after the applicable termination of employment and pursuant to this authorization. The Participant further

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agrees that the Company is authorized to instruct its designated broker to assist with the mandatory sale of such Shares and the Participant expressly authorizes the Company’s designated broker to complete the sale of such Shares. The Participant acknowledges that the Company’s designated broker is under no obligation to arrange for the sale of the Shares at any particular price. Upon the sale of Shares, the Participant will receive the sale proceeds less any amounts necessary to satisfy Tax-Related Items and applicable transaction fees or commissions. Due to currency exchange conversion rate fluctuation between the applicable vesting date of the Special Retention Awards and (if later) the date on which the Shares are sold, the amount of sale proceeds may be more or less than the fair market value of the Shares on the applicable vesting date (which is the relevant amount for purposes of calculating amounts necessary to satisfy applicable Tax-Related Items).

Exchange Control Restrictions.

The Participant understands and agrees that, pursuant to local exchange control requirements, the Participant will be required to immediately repatriate any cash payments or proceeds obtained with respect to participation in the Plan to the PRC. The Participant further understands that such repatriation of any cash payments or proceeds may need to be effectuated through a special exchange control account established by the Company or any Subsidiary, and the Participant hereby consents and agrees that any payment or proceeds may be transferred to such special account prior to being delivered to the Participant.

Any payment or proceeds may be paid to the Participant in U.S. dollars or local currency at the Company’s discretion. If the payments or proceeds are paid to the Participant in U.S. dollars, the Participant will be required to set up a U.S. dollar bank account in the PRC so that the payments or proceeds may be deposited into this account. If the payments or proceeds are paid to the Participant in local currency, the Company is under no obligation to secure any particular exchange conversion rate and the Company may face delays in converting the payments or proceeds to local currency due to exchange control restrictions.

The Participant further agrees to comply with any other requirements that may be imposed by the Company in the future to facilitate compliance with exchange control requirements in the PRC.

Czech Republic

Notifications

Foreign Asset/Account Reporting Information.

Upon request of the Czech National Bank, the Participant may be required to file a report in connection with the Special Retention Award and the opening and maintenance of a foreign account. However, because exchange control regulations change frequently and without notice, the Participant should consult with his or her personal advisor before vesting of the Special Retention Award and before opening any foreign accounts in connection with the Special Retention Award to ensure compliance with current regulations. The Participant is solely responsible for complying with applicable Czech exchange control laws.

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Finland

There are no country-specific provisions.

France

Terms and Conditions

Language Consent.

By accepting the grant of Special Retention Awards and the Award Terms, which provides for the terms and conditions of your Special Retention Awards, you confirm having read and understood the documents relating to this Award (the Plan and the Award Terms, including this Appendix) which were provided to you in English. You accept the terms of those documents accordingly.

En acceptant l’Attribution d’Actions Attribuées et ce Contrat d’Attribution qui contient les termes et conditions de vos Actions Attribuées, vous confirmez avoir lu et compris les documents relatifs à cette attribution (le Plan et le Contrat d’Attribution, ainsi que la présente Annexe) qui vous ont été transmis en langue anglaise. Vous acceptez ainsi les conditions et termes de ces documents.

Notifications

Foreign Asset/Account Reporting Information.

If the Participant is a French resident, he or she must declare all foreign bank and brokerage accounts (including any accounts that were opened or closed during the tax year) on an annual basis on form No. 3916, together with the Participant’s income tax return. Failure to complete this reporting triggers penalties for the Participant. Further, French residents with foreign account balances exceeding €1,000,000 may have additional monthly reporting obligations.

Germany

Notifications

Exchange Control Information.

Cross-border payments in excess of €12,500 must be reported monthly to the German Federal Bank (Bundesbank). If the Participant makes or receives a payment in excess of this amount, the Participant must report the payment to Bundesbank electronically using the “General Statistics Reporting Portal” (“Allgemeines Meldeportal Statistik”) available via Bundesbank’s website (www.bundesbank.de).

Guinea

Terms and Conditions

Award Settlement.

Notwithstanding any provision in the Award Terms to the contrary, if deemed by the Company to be necessary for regulatory reasons, the Company reserves the right to settle Special Retention Awards by payment in cash or its equivalent of an amount equal in value to the Shares subject to the vested Special Retention Awards.

Hungary

There are no country-specific provisions.

B-6

Iceland

Terms and Conditions

Award Settlement.

Notwithstanding any provision in the Award Terms to the contrary, if deemed by the Company to be necessary for regulatory reasons, the Company reserves the right to settle Special Retention Awards by payment in cash or its equivalent of an amount equal in value to the Shares subject to the vested Special Retention Awards.

Italy

Terms and Conditions

Authorization to Release and Transfer Necessary Personal Information. The following provision replaces in its entirety paragraph D “Data Privacy” of Appendix A:

The Participant understands that the Employer and/or the Company may hold certain personal information about the Participant, including, but not limited to, the Participant’s name, home address and telephone number, date of birth, social security number (or any other social or national identification number), salary, nationality, job title, number of Shares held and the details of all Special Retention Awards or any other entitlement to Shares awarded, cancelled, exercised, vested, unvested or outstanding (the “Data”) for the exclusive purpose of implementing, administering and managing the Participant’s participation in the Plan. The Participant is aware that providing the Company with the Participant’s Data is necessary for the performance of the Award Terms and that the Participant’s refusal to provide such Data would make it impossible for the Company to perform its contractual obligations and may affect the Participant’s ability to participate in the Plan.

The Controller of personal data processing is Alcoa, Inc., 390 Park Avenue, New York City, New York, 10022 U.S.A., and, pursuant to D.lgs 196/2003, its representative in Italy is Fusina Rolling Srl, Piazza Giuseppe Missori n.2, Milano, 20122 Italy. The Participant understands that the Data may be transferred to the Company or any of its Subsidiaries, or to any third parties assisting in the implementation, administration and management of the Plan, including any transfer required to Merrill Lynch with whom Shares acquired pursuant to the vesting of the Special Retention Awards or cash from the sale of such Shares may be deposited. Furthermore, the recipients that may receive, possess, use, retain and transfer such Data for the above mentioned purposes may be located in Italy or elsewhere, including outside of the European Union and that the recipients’ country (e.g., the United States) may have different data privacy laws and protections than the Participant’s country. The processing activity, including the transfer of the Participant’s personal data abroad, outside of the European Union, as herein specified and pursuant to applicable laws and regulations, does not require the Participant’s consent thereto as the processing is necessary for the performance of contractual obligations related to the implementation, administration and management of the Plan. The Participant understands that Data processing relating to the purposes above specified shall take place under automated or non-automated conditions, anonymously when possible, that comply with the purposes for which Data are collected and with confidentiality and security provisions as set forth by applicable laws and regulations, with specific reference to D.lgs. 196/2003.

B-7

The Participant understands that Data will be held only as long as is required by law or as necessary to implement, administer and manage the Participant’s participation in the Plan. Participant understands that pursuant to art.7 of D.lgs 196/2003, the Participant has the right, including but not limited to, access, delete, update, request the rectification of the Data and cease, for legitimate reasons, the Data processing. Furthermore, the Participant is aware that the Data will not be used for direct marketing purposes. In addition, the Data provided can be reviewed and questions or complaints can be addressed by contacting a local human resources representative.

Plan Document Acknowledgement.

By accepting the Special Retention Award, the Participant acknowledges that the Participant has received a copy of the Plan and the Award Terms and has reviewed the Plan and the Award Terms, including the Appendices, in their entirety and fully understands and accepts all provisions of the Plan and the Award Terms, including the Appendices. The Participant further acknowledges that the Participant has read and specifically and expressly approves the following paragraphs of the Award Terms: paragraphs 2-5: Vesting and Payment; paragraph 15: Repayment and Forfeiture; paragraph 16: Stock Exchange Requirements and Applicable Laws; paragraph 19: Severability and Judicial Modification; paragraph 21: Appendices; paragraph 22: Imposition of Other Requirements; paragraph 26: Governing Law and Venue; paragraph A of Appendix A: Termination; paragraph C of Appendix A: Nature of Award and the Data Privacy provisions above.

Notifications

Foreign Asset/Account Reporting Information.

Italian residents who, during the fiscal year, hold investments abroad or foreign financial assets (e.g., cash, Shares) which may generate income taxable in Italy are required to report such on their annual tax returns (UNICO form, RW Schedule) or on a special form if no tax return is due. The same reporting obligations apply to Italian residents who, even if they do not directly hold investments abroad or foreign financial assets (e.g., cash, Shares), are beneficial owners of the investment pursuant to Italian money laundering provisions.

Tax on Foreign Financial Assets.

The value of the financial assets held outside of Italy by Italian residents is subject to a foreign asset tax at an annual rate of 2 per thousand (0.2%) . The taxable amount will be the fair market value of the financial assets (including Shares) assessed at the end of the calendar year. No tax payment duties arise if the amount of the foreign assets tax calculated on all financial assets held abroad does not exceed €12.

Jamaica

There are no country-specific provisions.

B-8

Japan

Notifications

Foreign Asset/Account Reporting Information.

The Participant will be required to report details of any assets held outside of Japan as of December 31 (including any Shares acquired under the Plan) to the extent such assets have a total net fair market value exceeding ¥50,000,000. Such report will be due by March 15 of the following year. The Participant should consult with his or her personal tax advisor as to whether the reporting obligation applies to the Participant and whether the Participant will be required to report details of any outstanding Special Retention Awards, Shares or cash held by the Participant in the report.

Korea

Notifications

Exchange Control Information.

Exchange control laws require Korean residents who realize US$500,000 or more from the sale of Shares or the receipt of dividends in a single transaction to repatriate the sale proceeds back to Korea within three years of the sale/receipt.

Foreign Asset/Account Reporting Information.

If the Participant is a Korean resident, the Participant must declare all of his or her foreign financial accounts (including any brokerage account) to the Korean tax authority and file a report with respect to such accounts if the value of such accounts exceeds KRW 1 billion (or an equivalent amount in foreign currency). The Participant should consult with his or her personal tax advisor as to whether the reporting obligation applies.

Mexico

Terms and Conditions

Policy Statement.

The Special Retention Award is a unilateral and discretionary award and, therefore, the Company reserves the absolute right to amend it and discontinue it at any time without any liability.

The Company, with offices at 390 Park Avenue, New York City, New York, 10022 U.S.A., is solely responsible for the administration of the Plan, and participation in the Plan and the Award of the Special Retention Award does not, in any way, establish an employment relationship between the Participant and the Company since the Participant is participating in the Plan on a wholly commercial basis and the sole employer is a Mexican Subsidiary, nor does it establish any rights between the Participant and the Employer.

Plan Document Acknowledgment.

By accepting the Special Retention Awards, the Participant acknowledges that he or she has received copies of the Plan, has reviewed the Plan and the Award Terms in their entirety, and fully understands and accepts all provisions of the Plan and the Award Terms, including the Appendices.

In addition, the Participant expressly approves that: (i) participation in the Plan does not constitute an acquired right; (ii) the Plan and participation in the Plan is offered by the Company on a wholly discretionary basis; (iii) participation in the Plan is voluntary; and (iv) neither the Company nor any Subsidiary is responsible for any decrease in the value of the Shares acquired upon vesting of the Special Retention Awards.

B-9

Finally, the Participant hereby declares that he or she does not reserve any action or right to bring any claim against the Company for any compensation or damages as a result of his or her participation in the Plan and therefore grant a full and broad release to the Employer, the Company and its other Subsidiaries with respect to any claim that may arise under the Plan.

Spanish Translation

Declaración de Política.

El Otorgamiento de Unidades de Acciones Restringidas es un otorgamiento unilateral y discrecional y, por lo tanto, la Compañía se reserva el derecho absoluto de modificar y discontinuar el Plan en cualquier tiempo, sin responsabilidad alguna.

La Compañía, con oficinas registradas ubicadas en 390 Park Avenue, New York, New York 10022 U.S.A., es únicamente responsable de la administración del Plan, y la participación en el Plan y el Otorgamiento de Unidades de Acciones Restringidas no establecen, de forma alguna, una relación de trabajo entre el Participante y la Compañía, ya que el Participante está participando en el Plan sobre una base comercial y el único patrón es una Afiliada Mexicana y tampoco establece ningún derecho entre usted y el Patrón.

Reconocimiento del Documento del Plan.

Al aceptar el Otorgamiento de las Unidades de Acciones Restringidas, el Participante reconoce que ha recibido copias del Plan, ha revisado el Plan y los Términos del Otorgamiento en su totalidad y que entiende y acepta completamente todas las disposiciones contenidas en el Plan y en los Términos del Otorgamiento, incluyendo los Apéndices.

Adicionalmente, el Participante aprueba expresamente que (i) la participación en el Plan no constituye un derecho adquirido; (ii) el Plan y la participación en el Plan se ofrecen por la Compañía de forma enteramente discrecional; (iii) la participación en el Plan es voluntaria; y (iv) la Compañía, cualquier Filial y el Patrón no son responsables por cualquier disminución en el valor de las Acciones adquiridas al momento de tener derecho en relación con las Unidades de Acciones Restringidas.

Finalmente, el Participante declara que no se reserva ninguna acción o derecho para interponer una reclamación o demanda en contra de la Compañía por compensación, daño o perjuicio alguno como resultado de su participación en el Plan y, por lo tanto, otorga el más amplio y total finiquito al Patrón, la Compañía y sus Filiales en relación con cualquier reclamación demanda que pudiera surgir de conformidad con el Plan.

Netherlands

There are no country-specific provisions.

B-10

Norway

There are no country-specific provisions.

Poland

Notifications

Exchange Control Information.

Polish residents holding foreign securities (including Shares) and maintaining accounts abroad (including any brokerage account) must report information to the National Bank of Poland on transactions and balances of the securities and cash deposited in such accounts if the value of such securities and cash (calculated individually or together with all other assets/liabilities held abroad) exceeds a specified threshold (currently PLN7,000,000). If required, the reports are due on a quarterly basis on special forms available on the website of the National Bank of Poland. Further, any transfer of funds in excess of a specified threshold (currently €15,000) must be effected through a bank account in Poland. The Participant should maintain evidence of such foreign exchange transactions for five (5) years, in case of a request for their production by the National Bank of Poland.

Russia

Terms and Conditions

U.S. Transaction.

The Participant understands that the grant of the Special Retention Award is a right to receive Shares if certain conditions are met and that the offer is made by the Company in the United States. Upon vesting of the Special Retention Award, any Shares to be issued to the Participant shall be delivered to the Participant through a brokerage account in the United States.

Notifications

Exchange Control Information.

Upon the sale of Shares acquired under the Plan, the Participant must repatriate the proceeds of the sale back to Russia within a reasonably short time after receipt. The Participant may remit proceeds to Participant’s foreign currency account at an authorized bank in Russia or in a foreign bank account opened in accordance with Russian exchange control laws. The Participant is encouraged to contact the Participant’s personal advisor before remitting the Participant’s sale proceeds to Russia.

Securities Law Information.

The Participant is not permitted to sell Shares directly to other Russian legal entities or residents.

The grant of the Special Retention Awards and the distribution of the Plan and all other materials the Participant may receive regarding participation in the Plan do not constitute an offering or the advertising of securities in Russia. The issuance of Shares pursuant to the Plan has not and will not be registered in Russia and, therefore, the Shares may not be used for an offering or public circulation in Russia. In no event will Shares be delivered to the Participant in Russia; all Shares acquired under the Plan will be maintained on the Participant’s behalf in the United States.

B-11

Data Privacy Acknowledgement.

The Participant hereby acknowledges that he or she has read and understands the terms regarding collection, processing and transfer of Data contained in Appendix A to the Award Terms and by participating in the Plan, the Participant agrees to such terms. In this regard, upon request of the Company or the Employer, the Participant agrees to provide an executed data privacy consent form to the Company or the Employer (or any other agreements or consents that may be required by the Company or the Employer) that the Company and/or the Employer may deem necessary to obtain under the data privacy laws of Russia, either now or in the future.

Labor Law Information.

If the Participant continues to hold Shares after involuntary termination, the Participant may not be eligible to receive unemployment benefits in Russia.

South Africa

Notifications

Tax Reporting Information.

By accepting the Special Retention Award, the Participant agrees to notify the Employer of the amount of income realized at vesting of the Special Retention Award. If the Participant fails to advise the Employer of the income at vesting, the Participant may be liable for a fine. The Participant will be responsible for paying any difference between the actual tax liability and the amount withheld.

Exchange Control Information.

The Participant is solely responsible for complying with applicable South African exchange control regulations. Since the exchange control regulations change frequently and without notice, the Participant should consult his or her legal advisor prior to the acquisition or sale of Shares acquired under the Plan to ensure compliance with current regulations. As it is the Participant’s responsibility to comply with South African exchange control laws, neither the Company, the Employer nor any other Subsidiary will be liable for any fines or penalties resulting from the Participant’s failure to comply with applicable laws.

Spain

Terms and Conditions

No Entitlement for Claims or Compensation. The following provisions supplement paragraph A “Termination” of Appendix A.

By accepting the Special Retention Award, the Participant consents to participation in the Plan and acknowledges that Participant has received a copy of the Plan.

The Participant understands and agrees that, as a condition of the grant of the Special Retention Award, if the Participant’s employment terminates, unless otherwise provided in the Award Terms or by the Company, any unvested Special Retention Awards shall be forfeited without entitlement to the underlying Shares or to any amount as indemnification in the event of a termination, including, but not limited to: resignation, disciplinary dismissal adjudged to be with cause,

B-12

disciplinary dismissal adjudged or recognized to be without cause, individual or collective layoff on objective grounds, whether adjudged to be with cause or adjudged or recognized to be without cause, material modification of the terms of employment under Article 41 of the Workers’ Statute, relocation under Article 40 of the Workers’ Statute, Article 50 of the Workers’ Statute, unilateral withdrawal by the Employer, and under Article 10.3 of Royal Decree 1382/1985.

The Participant understands that the Company has unilaterally, gratuitously and in its sole discretion decided to grant Special Retention Awards under the Plan to individuals who may be Employees of the Company or a Subsidiary. The decision is limited and entered into based upon the express assumption and condition that any Special Retention Awards will not economically or otherwise bind the Company or any Subsidiary, including the Employer, on an ongoing basis, other than as expressly set forth in the Award Terms. Consequently, the Participant understands that the Special Retention Awards are granted on the assumption and condition that the Special Retention Awards shall not become part of any employment or service agreement (whether with the Company or any Subsidiary, including the Employer) and shall not be considered a mandatory benefit, salary for any purpose (including severance compensation) or any other right whatsoever. Furthermore, the Participant understands and freely accepts that there is no guarantee that any benefit whatsoever shall arise from the grant of Special Retention Awards, which is gratuitous and discretionary, since the future value of the Special Retention Awards and the underlying Shares is unknown and unpredictable. The Participant also understands that the grant of Special Retention Awards would not be made but for the assumptions and conditions set forth hereinabove; thus, the Participant understands, acknowledges and freely accepts that, should any or all of the assumptions be mistaken or any of the conditions not be met for any reason, the Special Retention Award and any right to the underlying Shares shall be null and void.

Notifications

Securities Law Information.

No “offer of securities to the public”, as defined under Spanish law, has taken place or will take place in the Spanish territory with respect to the Special Retention Award. No public offering prospectus has been nor will be registered with the Comisión Nacional del Mercado de Valores (Spanish Securities Exchange Commission) (“CNMV”). Neither the Plan nor the Award Terms constitute a public offering prospectus and they have not been, nor will they be, registered with the CNMV.

Exchange Control Information.

It is the Participant’s responsibility to comply with exchange control regulations in Spain. The Participant must declare the acquisition of Shares for statistical purposes to the Spanish Direccion General de Comercio e Inversiones (the “DGCI”) of the Ministry of Economy and Competitiveness. In addition, the Participant must also file a Form D-6 with the Directorate of Foreign Transaction each January in which the Shares are owned. The sale of Shares also must be declared on Form D-6 filed with the DGCI in January, unless the sale proceeds exceed the applicable threshold (currently €1,502,530), in which case, the filing is due within one month after the sale.

Foreign Asset/Account Reporting Information.

The Participant is required to declare electronically to the Bank of Spain any securities accounts (including brokerage accounts held abroad), as well as the Shares held in such accounts if the value of the transactions during the prior tax year or the balances in such accounts as of December 31 of the prior tax year exceed €1,000,000.

B-13

Further, to the extent that the Participant holds Shares and/or has bank accounts outside Spain with a value in excess of €50,000 (for each type of asset) as of December 31, the Participant will be required to report information on such assets on his or her tax return (tax form 720) for such year. After such Shares and/or accounts are initially reported, the reporting obligation will apply for subsequent years only if the value of any previously-reported Shares or accounts increases by more than €20,000 or if the Participant sells or otherwise disposes of any previously-reported Shares or accounts.

Suriname

Terms and Conditions

Award Settlement.

Notwithstanding any provision in the Award Terms to the contrary, if deemed by the Company to be necessary for regulatory reasons, the Company reserves the right to settle Special Retention Awards by payment in cash or its equivalent of an amount equal in value to the Shares subject to the vested Special Retention Awards.

Switzerland

Notifications

Securities Law Information.

The grant of the Special Retention Award under the Plan is considered a private offering in Switzerland and is, therefore, not subject to registration in Switzerland. Neither this document nor any other material related to the Special Retention Award constitutes a prospectus as such term is understood pursuant to Article 652a of the Swiss Code of Obligations, and neither this document nor any other materials related to the Special Retention Award may be publicly distributed or otherwise made publicly available in Switzerland.

United Kingdom

Terms and Conditions

Responsibility for Taxes. The following supplements paragraph B “Responsibility for Taxes” of Appendix A:

The Participant shall pay to the Company or the Employer any amount of income tax that the Company or the Employer may be required to account to Her Majesty’s Revenue & Customs (“HMRC”) with respect to the event giving rise to the income tax (the “Taxable Event”) that cannot be satisfied by the means described in paragraph B of Appendix A. If payment or withholding of the income tax due is not made within ninety (90) days of the end of the U.K. tax year in which the Taxable Event occurs or such other period as required under U.K. law (the “Due Date”), the Participant agrees that the amount of any uncollected income tax shall constitute a loan owed by the Participant to the Employer, effective on the Due Date. The Participant agrees that the loan will bear interest at the then-current HMRC Official Rate, it will be immediately due and repayable, and

B-14

the Company or the Employer may recover it at any time thereafter by any of the means referred to in paragraph B of Appendix A. If the Participant fails to comply with his or her obligations in connection with the income tax as described in this section, the Company may refuse to deliver the Shares acquired under the Plan.

Notwithstanding the foregoing, if the Participant is a Director or executive officer of the Company (within the meaning of Section 13(k) of the U.S. Securities Exchange Act of 1934), the Participant shall not be eligible for a loan from the Company to cover income tax. In the event that the Participant is a Director or executive officer and income tax is not collected from or paid by the Participant by the Due Date, the amount of any uncollected income tax may constitute a benefit to the Participant on which additional income tax and National Insurance contributions (“NICs”) may be payable. The Participant will be responsible for reporting and paying any income tax due on this additional benefit directly to HMRC under the self-assessment regime and for reimbursing the Company or the Employer for the value of any employee NICs due on this additional benefit, which the Company or the Employer may recover by any of the means referred to in paragraph B of Appendix A.

B-15

EX-12

Exhibit 12

Alcoa and subsidiaries

Computations of Ratio of Earnings to Fixed Charges and

Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends

(in millions, except ratios)

Six months ended June 30,	2016
Earnings:
Income before income taxes	$	371
Noncontrolling interests’ share of earnings of majority-owned subsidiaries without fixed charges		—
Equity income		(31	)
Fixed charges added to earnings		273
Distributed income of less than 50 percent-owned persons		51
Amortization of capitalized interest:
Consolidated		20
Proportionate share of 50 percent-owned persons		—
Total earnings	$	684
Fixed Charges:
Interest expense:
Consolidated	$	256
Proportionate share of 50 percent-owned persons		—
	$	256
Amount representative of the interest factor in rents:
Consolidated	$	17
Proportionate share of 50 percent-owned persons		—
	$	17
Fixed charges added to earnings	$	273
Interest capitalized:
Consolidated	$	25
Proportionate share of 50 percent-owned persons		—
	$	25
Preferred stock dividend requirements of majority-owned subsidiaries	$	—
Total fixed charges	$	298
Pretax earnings required to pay preferred stock dividends*	$	53
Combined total fixed charges and preferred stock dividends	$	351
Ratio of earnings to fixed charges		2.3
Ratio of earnings to combined fixed charges and preferred stock dividends		1.9

* Based on a U.S. statutory tax rate of 35%

EX-15

Exhibit 15

July 29, 2016

Securities and Exchange Commission

100 F Street, NE

Washington, D.C. 20549

RE: Alcoa Inc.

Commissioners:

We are aware that our report dated July 29, 2016 on our review of interim financial information of Alcoa Inc. and its subsidiaries (Alcoa) for the three- and six-month periods ended June 30, 2016 and 2015 and included in Alcoa’s quarterly report on Form 10-Q for the quarter ended June 30, 2016 is incorporated by reference in its Registration Statements on Form S-3 (Nos. 333-197371 and 333-201055) and Form S-8 (Nos. 333-32516, 333-106411, 333-128445, 333-146330, 333-153369, 333-155668, 333-159123, 333-168428, 333-170801, 333-182899, 333-189882, 333-203275, 333-205829, 333-209772, 333-209777, and 333-212246).

Very truly yours,

/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP

Pittsburgh, Pennsylvania

EX-31

Exhibit 31

Certifications

I, Klaus Kleinfeld, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Alcoa Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: July 29, 2016
	/s/ KLAUS KLEINFELD
	Name:	Klaus Kleinfeld
	Title:	Chairman and Chief Executive Officer

I, William F. Oplinger, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Alcoa Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: July 29, 2016
	/s/ WILLIAM F. OPLINGER
	Name:	William F. Oplinger
	Title:	Executive Vice President and Chief Financial Officer

EX-32

Exhibit 32

Certification

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), each of the undersigned officers of Alcoa Inc., a Pennsylvania corporation (the “Company”), does hereby certify that:

The Quarterly Report on Form 10-Q for the quarter ended June 30, 2016 (the “Form 10-Q”) of the Company fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 and information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: July 29, 2016	/s/ KLAUS KLEINFELD
	Name:	Klaus Kleinfeld
	Title:	Chairman and Chief Executive Officer
Date: July 29, 2016	/s/ WILLIAM F. OPLINGER
	Name:	William F. Oplinger
	Title:	Executive Vice President and Chief Financial Officer

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

The foregoing certification is being furnished to the Securities and Exchange Commission as an exhibit to the Form 10-Q and shall not be considered filed as part of the Form 10-Q.

EX-95

Exhibit 95

MINE SAFETY DISCLOSURE

At Alcoa, management strives to work safely in a manner that protects and promotes the health and well-being of the Company’s employees, contractors, and the communities in which Alcoa operates because it is fundamentally the right thing to do. Despite uncertainties and economic challenges, Alcoa remains committed to living its values and managing risks accordingly. In 2015, 44.4% of Alcoa’s global locations reported no recordable injuries, and 79.1% reported zero lost workdays. In Alcoa’s 2015 Employee Global Voices Survey, “If I see a situation that is unsafe, I can stop work” received the highest overall rating (at 92% favorable) by employees participating in the survey.

Alcoa’s health and safety systems are anchored by committed people who are actively engaged and effectively support a safe work environment, safe work methods, and overall production system stability. Each day, people at all levels proactively monitor and intervene to defend against weaknesses that develop in Alcoa’s safety systems by identifying potential hazards and error-likely situations and responding to eliminate or control them.

In the table below, there are disclosures involving the Point Comfort, TX alumina refinery. All citations have been or are being addressed. None constituted an imminent danger.

Dodd-Frank Act Disclosure of Mine Safety and Health Administration Safety Data

Certain of Alcoa’s U.S. facilities are subject to regulation by the Mine Safety and Health Administration (MSHA) under the U.S. Federal Mine Safety and Health Act of 1977 (the “Mine Act”). The MSHA inspects these facilities on a regular basis and issues various citations and orders when it believes a violation has occurred under the Mine Act. Whenever the MSHA issues a citation or order, it also generally proposes a civil penalty, or fine, related to the alleged violation. Citations or orders can be contested and appealed, and as part of that process, are often reduced in severity and amount, and are sometimes dismissed.

Management believes the following mine safety disclosures meet the requirements of section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd-Frank Act”).

Mine Safety Data. The table and other data below present mine safety information related to Alcoa’s U.S. facilities subject to MSHA regulation, as required by section 1503(a)(1) of the Dodd-Frank Act. The following data reflects citations and orders received from the MSHA during the quarter ended June 30, 2016, as reflected in the MSHA system on June 30, 2016, and the proposed penalties received from the MSHA during such period. ($ in full amounts)

Mine or Operating Name/MSHA Identification Number(1)	Section 104 S&S Citations(3) (#)		Section 104(b) Orders(4) (#)		Section 104(d) Citations and Orders(5) (#)		Section 110(b)(2) Violations(6) (#)		Section 107(a) Orders(7) (#)		Total Dollar Value of MSHA Assessments Proposed(8) ($)		Total Number of Mining Related Fatalities (#)		Received Notice of Pattern of Violations Under Section 104(e) (yes/no)		Received Notice of Potential to Have Pattern Under Section 104(e) (yes/no)		Legal Actions Pending as of Last Day of Period (#)		Legal Actions Initiated During Period (#)		Legal Actions Resolved During Period (#)
Point Comfort, TX Alumina Refinery(2)		1		—		1		—		—	$	55,180		—		no		no		15		4		1

(1) The MSHA assigns an identification number to each mine or operation and may or may not assign separate identification numbers to related facilities. The information provided in this table is presented by mine or operation rather than the MSHA identification number because that is how Alcoa manages and operates its business, and management believes that this presentation is more useful to investors.

(2) Under the Interagency Agreement dated March 29, 1979 between the MSHA, the U.S. Department of Labor, and The Occupational Safety and Health Administration, alumina refineries (such as Alcoa’s Point Comfort facility) are subject to MSHA jurisdiction.

(3) Represents the total number of citations issued under section 104 of the Mine Act, for violations of mandatory health or safety standards that could significantly and substantially contribute to a serious injury if left unabated. This includes the citations listed under the column headed §104(d).

(4) Represents the total number of orders issued under section 104(b) of the Mine Act, which represents a failure to abate a citation under section 104(a) within the period prescribed by the MSHA. This results in an order of immediate withdrawal from the area of the mine affected by the condition until the MSHA determines that the violation has been abated.

(5) Represents the total number of citations and orders issued under section 104(d) of the Mine Act for unwarrantable failure to comply with mandatory health or safety standards.

(6) Represents the total number of flagrant violations identified under section 110(b)(2) of the Mine Act.

(7) Represents the total number of imminent danger orders issued under section 107(a) of the Mine Act.

(8) Amounts represent the total dollar value of proposed assessments received.

During the quarter ended June 30, 2016, Alcoa had no mining related fatalities, and none of the Company’s mining operations received written notice from the MSHA of a pattern of, or the potential to have a pattern of, violations of mandatory health or safety standards that are of such nature as could have significantly and substantially contributed to the cause and effect of mine health or safety hazards under section 104(e) of the Mine Act.

The Federal Mine Safety and Health Review Commission (the “Commission”) is an independent adjudicative agency that provides administrative trial and appellate review of legal disputes arising under the Mine Act. As of June 30, 2016, Alcoa has a total of 15 matters pending before the Commission. Fourteen of these matters concern contests of citations or orders issued under section 104 of the Mine Act, along with the contests of the proposed penalties for each of these. The other matter was a retaliation complaint filed by an employee, which was dismissed by an Administrative Law Judge on September 28, 2015. The employee has appealed the dismissal to the Commission, where the matter is pending. All of these matters concern citations, orders or proposed assessments issued by MSHA during 2016 (seven), 2015 (six) or 2014 (two).

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Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2016	Jul. 22, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2
Trading Symbol	AA
Entity Registrant Name	ALCOA INC.
Entity Central Index Key	0000004281
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		1,315,374,511

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Statement of Consolidated Operations (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Sales (K)	$ 5,295	$ 5,897	$ 10,242	$ 11,716
Cost of goods sold (exclusive of expenses below)	4,216	4,663	8,257	9,106
Selling, general administrative, and other expenses (P)	286	224	546	456
Research and development expenses	39	68	81	123
Provision for depreciation, depletion, and amortization	309	319	618	640
Restructuring and other charges (D)	23	217	116	394
Interest expense	129	124	256	246
Other income, net (J)	(37)		(3)	(12)
Total costs and expenses	4,965	5,615	9,871	10,953
Income before income taxes	330	282	371	763
Provision for income taxes	152	75	182	301
Net income	178	207	189	462
Less: Net income attributable to noncontrolling interests	43	67	38	127
Consolidated net income attributable to Alcoa	135	140	151	335
AMOUNTS ATTRIBUTABLE TO ALCOA COMMON SHAREHOLDERS (L):
Net income	$ 118	$ 123	$ 116	$ 300
Earnings per share:
Basic	$ 0.09	$ 0.10	$ 0.09	$ 0.25
Diluted	0.09	0.10	0.09	0.24
Dividends paid per share	$ 0.03	$ 0.03	$ 0.06	$ 0.06

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Statement of Consolidated Comprehensive Income (Loss) (unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net income	$ 178	$ 207	$ 189	$ 462
Other comprehensive (loss) income, net of tax (C):
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits	67	(1)	100	106
Foreign currency translation adjustments	77	229	487	(978)
Net change in unrealized losses/gains on available-for-sale securities	3	(2)	4
Net change in unrecognized gains/losses on cash flow hedges	(137)	430	(219)	366
Total Other comprehensive (loss) income, net of tax	10	656	372	(506)
Comprehensive income	188	863	561	(44)
Alcoa [Member]
Net income	135	140	151	335
Other comprehensive (loss) income, net of tax (C):
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits	65	(4)	97	101
Foreign currency translation adjustments	45	197	348	(760)
Net change in unrealized losses/gains on available-for-sale securities	3	(2)	4
Net change in unrecognized gains/losses on cash flow hedges	(153)	434	(233)	370
Total Other comprehensive (loss) income, net of tax	(40)	625	216	(289)
Comprehensive income	95	765	367	46
Noncontrolling Interests [Member]
Net income	43	67	38	127
Other comprehensive (loss) income, net of tax (C):
Change in unrecognized net actuarial loss and prior service cost/benefit related to pension and other postretirement benefits	2	3	3	5
Foreign currency translation adjustments	32	32	139	(218)
Net change in unrecognized gains/losses on cash flow hedges	16	(4)	14	(4)
Total Other comprehensive (loss) income, net of tax	50	31	156	(217)
Comprehensive income	$ 93	$ 98	$ 194	$ (90)

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Consolidated Balance Sheet (Unaudited) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 1,929	$ 1,919
Receivables from customers, less allowances of $14 in 2016 and $13 in 2015 (M)	1,595	1,340
Other receivables (M)	494	522
Inventories (F)	3,438	3,442
Prepaid expenses and other current assets	637	730
Total current assets	8,093	7,953
Properties, plants, and equipment	34,441	33,687
Less: accumulated depreciation, depletion, and amortization	19,424	18,872
Properties, plants, and equipment, net	15,017	14,815
Goodwill (E)	5,396	5,401
Investments (G)	1,466	1,685
Deferred income taxes	2,752	2,668
Other noncurrent assets (H)	3,415	3,955
Total assets	36,139	36,477
Current liabilities:
Short-term borrowings	33	38
Accounts payable, trade	2,665	2,889
Accrued compensation and retirement costs	810	850
Taxes, including income taxes	206	239
Other current liabilities	1,000	1,174
Long-term debt due within one year	774	21
Total current liabilities	5,488	5,211
Long-term debt, less amount due within one year	8,278	8,993
Accrued pension benefits	3,122	3,298
Accrued other postretirement benefits	2,070	2,106
Other noncurrent liabilities and deferred credits	2,652	2,738
Total liabilities	21,610	22,346
CONTINGENCIES AND COMMITMENTS (I)
Alcoa shareholders' equity:
Preferred stock	55	55
Mandatory convertible preferred stock	3	3
Common stock	1,391	1,391
Additional capital	9,877	10,019
Retained earnings	8,871	8,834
Treasury stock, at cost	(2,647)	(2,825)
Accumulated other comprehensive loss (C)	(5,215)	(5,431)
Total Alcoa shareholders' equity	12,335	12,046
Noncontrolling interests	2,194	2,085
Total equity	14,529	14,131
Total liabilities and equity	$ 36,139	$ 36,477

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Consolidated Balance Sheet (Unaudited) (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Receivables from customers, allowance	$ 14	$ 13

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Statement of Consolidated Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
CASH FROM OPERATIONS
Net income	$ 189	$ 462
Adjustments to reconcile net income to cash from operations:
Depreciation, depletion, and amortization	622	641
Deferred income taxes	(78)	(45)
Equity income, net of dividends	20	50
Restructuring and other charges (D)	116	394
Net gain from investing activities - asset sales (G & J)	(28)	(28)
Net periodic pension benefit cost (N)	168	243
Stock-based compensation	55	55
Excess tax benefits from stock-based payment arrangements		(9)
Other	19	(64)
Changes in assets and liabilities, excluding effects of acquisitions, divestitures, and foreign currency translation adjustments:
(Increase) in receivables	(218)	(200)
(Increase) in inventories	(3)	(221)
Decrease in prepaid expenses and other current assets	4	7
(Decrease) in accounts payable, trade	(243)	(130)
(Decrease) in accrued expenses	(301)	(374)
Increase in taxes, including income taxes	57	130
Pension contributions	(147)	(169)
(Increase) in noncurrent assets (I)	(215)	(352)
(Decrease) in noncurrent liabilities	(115)	(93)
CASH (USED FOR) PROVIDED FROM OPERATIONS	(98)	297
FINANCING ACTIVITIES
Net change in short-term borrowings (original maturities of three months or less)	(5)	(4)
Additions to debt (original maturities greater than three months)	876	1,027
Payments on debt (original maturities greater than three months)	(882)	(1,037)
Proceeds from exercise of employee stock options	2	26
Excess tax benefits from stock-based payment arrangements		9
Dividends paid to shareholders	(114)	(109)
Distributions to noncontrolling interests	(84)	(71)
CASH USED FOR FINANCING ACTIVITIES	(207)	(159)
INVESTING ACTIVITIES
Capital expenditures	(528)	(514)
Acquisitions, net of cash acquired (E)		(204)
Proceeds from the sale of assets and businesses (E & H)	549	59
Additions to investments	(8)	(50)
Sales of investments (G)	275	22
Net change in restricted cash	7	(9)
Other	15	11
CASH PROVIDED FROM (USED FOR) INVESTING ACTIVITIES	310	(685)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	5	(19)
Net change in cash and cash equivalents	10	(566)
Cash and cash equivalents at beginning of year	1,919	1,877
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 1,929	$ 1,311

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Statement of Changes in Consolidated Equity (Unaudited) - USD ($) $ in Millions	Total	Preferred Class A [Member]	Preferred Class B [Member]	Preferred Stock [Member]	Mandatory Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Capital [Member]	Retained Earnings [Member]	Retained Earnings [Member] Preferred Class A [Member]	Retained Earnings [Member] Preferred Class B [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Noncontrolling Interests [Member]
Balance at Dec. 31, 2014	$ 14,794			$ 55	$ 3	$ 1,304	$ 9,284	$ 9,379			$ (3,042)	$ (4,677)	$ 2,488
Net income	462							335					127
Other comprehensive (loss) income (C)	(506)											(289)	(217)
Cash dividends declared:
Common share, value	(74)							(74)
Preferred share, value		$ (1)	$ (34)						$ (1)	$ (34)
Stock-based compensation	55						55
Common stock issued: compensation plans	16						(192)				208
Distributions	(71)												(71)
Other	(3)												(3)
Balance at Jun. 30, 2015	14,638			55	3	1,304	9,147	9,605			(2,834)	(4,966)	2,324
Balance at Mar. 31, 2015	13,843			55	3	1,304	9,124	9,520			(2,841)	(5,591)	2,269
Net income	207							140					67
Other comprehensive (loss) income (C)	656											625	31
Cash dividends declared:
Common share, value	(38)							(38)
Preferred share, value			(17)							(17)
Stock-based compensation	29						29
Common stock issued: compensation plans	1						(6)				7
Distributions	(42)												(42)
Other	(1)												(1)
Balance at Jun. 30, 2015	14,638			55	3	1,304	9,147	9,605			(2,834)	(4,966)	2,324
Balance at Dec. 31, 2015	14,131			55	3	1,391	10,019	8,834			(2,825)	(5,431)	2,085
Net income	189							151					38
Other comprehensive (loss) income (C)	372											216	156
Cash dividends declared:
Common share, value	(79)							(79)
Preferred share, value		$ (1)	(34)						$ (1)	(34)
Stock-based compensation	55						55
Common stock issued: compensation plans	(19)						(197)				178
Distributions	(84)												(84)
Other	(1)												(1)
Balance at Jun. 30, 2016	14,529			55	3	1,391	9,877	8,871			(2,647)	(5,215)	2,194
Balance at Mar. 31, 2016	14,361			55	3	1,391	9,856	8,753			(2,657)	(5,175)	2,135
Net income	178							135					43
Other comprehensive (loss) income (C)	10											(40)	50
Cash dividends declared:
Preferred share, value			$ (17)							$ (17)
Stock-based compensation	29						29
Common stock issued: compensation plans	2						(8)				10
Distributions	(34)												(34)
Balance at Jun. 30, 2016	$ 14,529			$ 55	$ 3	$ 1,391	$ 9,877	$ 8,871			$ (2,647)	$ (5,215)	$ 2,194

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Statement of Changes in Consolidated Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Common stock, dividends per share		$ 0.03	$ 0.06	$ 0.06
Preferred Class A [Member]
Preferred, dividends per share		0.9375	1.875	1.875
Preferred Class B [Member]
Preferred, dividends per share	$ 6.71875	$ 6.71875	$ 13.4375	$ 13.4375

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Basis of Presentation

6 Months Ended

Jun. 30, 2016

Accounting Policies [Abstract]

Basis of Presentation

A. Basis of Presentation– The interim Consolidated Financial Statements of Alcoa Inc. and its subsidiaries (“Alcoa” or the “Company”) are unaudited. These Consolidated Financial Statements include all adjustments, consisting only of normal recurring adjustments, considered necessary by management to fairly state the Company’s results of operations, financial position, and cash flows. The results reported in these Consolidated Financial Statements are not necessarily indicative of the results that may be expected for the entire year. The 2015 year-end balance sheet data was derived from audited financial statements but does not include all disclosures required by accounting principles generally accepted in the United States of America (GAAP). This Form 10-Q report should be read in conjunction with Alcoa’s Annual Report on Form 10-K for the year ended December 31, 2015, which includes all disclosures required by GAAP. Certain amounts in previously issued financial statements were reclassified to conform to the current period presentation (see Note B).

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Recently Adopted and Recently Issued Accounting Guidance

6 Months Ended

Jun. 30, 2016

Accounting Changes and Error Corrections [Abstract]

Recently Adopted and Recently Issued Accounting Guidance

B. Recently Adopted and Recently Issued Accounting Guidance

Adopted

On January 1, 2016, Alcoa adopted changes issued by the Financial Accounting Standards Board (FASB) to the presentation of extraordinary items. Such items are defined as transactions or events that are both unusual in nature and infrequent in occurrence, and, previously, were required to be presented separately in an entity’s income statement, net of income tax, after income from continuing operations. The changes eliminate the concept of an extraordinary item and, therefore, the presentation of such items is no longer required. Notwithstanding this change, an entity is still required to present and disclose a transaction or event that is both unusual in nature and infrequent in occurrence in the notes to the financial statements. The adoption of these changes had no impact on the Consolidated Financial Statements.

On January 1, 2016, Alcoa adopted changes issued by the FASB to the analysis an entity must perform to determine whether it should consolidate certain types of legal entities. These changes (i) modify the evaluation of whether limited partnerships and similar legal entities are variable interest entities or voting interest entities, (ii) eliminate the presumption that a general partner should consolidate a limited partnership, (iii) affect the consolidation analysis of reporting entities that are involved with variable interest entities, particularly those that have fee arrangements and related party relationships, and (iv) provide a scope exception from consolidation guidance for reporting entities with interests in legal entities that are required to comply with or operate in accordance with requirements that are similar to those in Rule 2a-7 of the Investment Company Act of 1940 for registered money market funds. The adoption of these changes had no impact on the Consolidated Financial Statements.

On January 1, 2016, Alcoa adopted changes issued by the FASB to the presentation of debt issuance costs. Previously, such costs were required to be presented as a noncurrent asset in an entity’s balance sheet and amortized into interest expense over the term of the related debt instrument. The changes require that debt issuance costs be presented in an entity’s balance sheet as a direct deduction from the carrying value of the related debt liability. The amortization of debt issuance costs remains unchanged. The FASB issued an update to these changes based on an announcement of the staff of the U.S. Securities and Exchange Commission. This update provides an exception to the FASB changes allowing debt issuance costs related to line-of-credit arrangements to continue to be presented as an asset regardless of whether there are any outstanding borrowings under such arrangement. This additional change also was adopted by Alcoa on January 1, 2016. This adoption is required on a retrospective basis; therefore, the December 31, 2015 Consolidated Balance Sheet has been updated to conform to the June 30, 2016 presentation. As a result, $51 of debt issuance costs (previously reported in Other noncurrent assets) were reclassified to the Long-term debt, less amount due within one year line item on the December 31, 2015 Consolidated Balance Sheet.

Issued

In January 2016, the FASB issued changes to equity investments. These changes require equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. However, an entity may choose to measure equity investments that do not have readily determinable fair values at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. Additionally, the impairment assessment of equity investments without readily determinable fair values has been simplified by requiring a qualitative assessment to identify impairment. These changes become effective for Alcoa on January 1, 2018. Management is currently evaluating the potential impact of these changes on the Consolidated Financial Statements.

In February 2016, the FASB issued changes to the accounting and presentation of leases. These changes require lessees to recognize a right of use asset and lease liability on the balance sheet for all leases with terms longer than 12 months. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize a right of use asset and lease liability. Additionally, when measuring assets and liabilities arising from a lease, optional payments should be included only if the lessee is reasonably certain to exercise an option to extend the lease, exercise a purchase option, or not exercise an option to terminate the lease. These changes become effective for Alcoa on January 1, 2019. Management is currently evaluating the potential impact of these changes on the Consolidated Financial Statements.

In March 2016, the FASB issued changes to employee share-based payment accounting. Currently, an entity must determine for each share-based payment award whether the difference between the deduction for tax purposes and the compensation cost recognized for financial reporting purposes results in either an excess tax benefit or a tax deficiency. Excess tax benefits are recognized in additional paid-in capital; tax deficiencies are recognized either as an offset to accumulated excess tax benefits, if any, or in the income statement. Excess tax benefits are not recognized until the deduction reduces taxes payable. The changes require all excess tax benefits and tax deficiencies related to share-based payment awards to be recognized as income tax expense or benefit in the income statement. The tax effects of exercised or vested awards should be treated as discrete items in the reporting period in which they occur. An entity also should recognize excess tax benefits regardless of whether the benefit reduces taxes payable in the current period. Additionally, the presentation of excess tax benefits related to share-based payment awards in the statement of cash flows is changed. Currently, excess tax benefits must be separated from other income tax cash flows and classified as a financing activity. The changes require excess tax benefits to be classified along with other income tax cash flows as an operating activity. Also, the changes require cash paid by an employer when directly withholding shares for tax-withholding purposes to be classified as a financing activity. Currently, there is no specific guidance on the classification in the statement of cash flows of cash paid by an employer to the tax authorities when directly withholding shares for tax-withholding purposes. Additionally, for a share-based award to qualify for equity classification it cannot partially settle in cash in excess of the employer’s minimum statutory withholding requirements. The changes permit equity classification of share-based awards for withholdings up to the maximum statutory tax rates in applicable jurisdictions. These changes become effective for Alcoa on January 1, 2017. Management is currently evaluating the potential impact of these changes on the Consolidated Financial Statements.

In March 2016, the FASB issued changes eliminating the requirement for an investor to adjust an equity method investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held as a result of an increase in the level of ownership interest or degree of influence. Additionally, an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting must recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. These changes become effective for Alcoa on January 1, 2017. Management is currently evaluating the potential impact of these changes on the Consolidated Financial Statements.

In March 2016, the FASB issued changes to derivative instruments designated as hedging instruments. These changes clarify that a change in the counterparty to a derivative instrument that has been designated as a hedging instrument does not, in and of itself, require dedesignation of that hedging relationship provided that all other hedge accounting criteria continue to be met. These changes become effective for Alcoa on January 1, 2017. Management does not expect these changes to have a material impact on the Consolidated Financial Statements.

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Accumulated Other Comprehensive Loss

6 Months Ended

Jun. 30, 2016

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 Alcoa’s shareholders and noncontrolling interests:

	Alcoa						Noncontrolling Interests
	Second quarter ended June 30,						Second quarter ended June 30,
	2016			2015			2016			2015
Pension and other postretirement benefits (N)
Balance at beginning of period	$	(3,579	)	$	(3,496	)	$	(55	)	$	(62	)
Other comprehensive income (loss):
Unrecognized net actuarial loss and prior service cost/benefit		(5	)		(118	)		1			3
Tax benefit		3			39			—			—
Total Other comprehensive (loss) income before reclassifications, net of tax		(2	)		(79	)		1			3
Amortization of net actuarial loss and prior service cost/benefit(1)		104			115			—			1
Tax (expense) benefit(2)		(37	)		(40	)		1			(1	)
Total amount reclassified from Accumulated other comprehensive loss, net of tax(8)		67			75			1			—
Total Other comprehensive income (loss)		65			(4	)		2			3
Balance at end of period	$	(3,514	)	$	(3,500	)	$	(53	)	$	(59	)
Foreign currency translation
Balance at beginning of period	$	(2,109	)	$	(1,803	)	$	(673	)	$	(601	)
Other comprehensive income(3)		45			197			32			32
Balance at end of period	$	(2,064	)	$	(1,606	)	$	(641	)	$	(569	)
Available-for-sale securities
Balance at beginning of period	$	(4	)	$	2		$	—		$	—
Other comprehensive income (loss)(4)		3			(2	)		—			—
Balance at end of period	$	(1	)	$	—		$	—		$	—
Cash flow hedges (O)
Balance at beginning of period	$	517		$	(294	)	$	(5	)	$	(2	)
Other comprehensive (loss) income:
Net change from periodic revaluations		(225	)		614			18			(5	)
Tax benefit (expense)		66			(190	)		(5	)		1
Total Other comprehensive (loss) income before reclassifications, net of tax		(159	)		424			13			(4	)
Net amount reclassified to earnings:
Aluminum contracts(5)		(1	)		10			—			—
Energy contracts(6)		—			2			—			—
Foreign exchange contracts(5)		—			1			—			—
Interest rate contracts(7)		8			1			5			—
Sub-total		7			14			5			—
Tax expense(2)		(1	)		(4	)		(2	)		—
Total amount reclassified from Accumulated other comprehensive income (loss), net of tax(8)		6			10			3			—
Total Other comprehensive (loss) income		(153	)		434			16			(4	)
Balance at end of period	$	364		$	140		$	11		$	(6	)

	Alcoa						Noncontrolling Interests
	Six months ended June 30,						Six months ended June 30,
	2016			2015			2016			2015
Pension and other postretirement benefits (N)
Balance at beginning of period	$	(3,611	)	$	(3,601	)	$	(56	)	$	(64	)
Other comprehensive income:
Unrecognized net actuarial loss and prior service cost/benefit		(64	)		(76	)		1			3
Tax benefit		26			28			—			—
Total Other comprehensive (loss) income before reclassifications, net of tax		(38	)		(48	)		1			3
Amortization of net actuarial loss and prior service cost/benefit(1)		208			229			2			4
Tax expense(2)		(73	)		(80	)		—			(2	)
Total amount reclassified from Accumulated other comprehensive loss, net of tax(8)		135			149			2			2
Total Other comprehensive income		97			101			3			5
Balance at end of period	$	(3,514	)	$	(3,500	)	$	(53	)	$	(59	)
Foreign currency translation
Balance at beginning of period	$	(2,412	)	$	(846	)	$	(780	)	$	(351	)
Other comprehensive income (loss)(3)		348			(760	)		139			(218	)
Balance at end of period	$	(2,064	)	$	(1,606	)	$	(641	)	$	(569	)
Available-for-sale securities
Balance at beginning of period	$	(5	)	$	—		$	—		$	—
Other comprehensive income(4)		4			—			—			—
Balance at end of period	$	(1	)	$	—		$	—		$	—
Cash flow hedges (O)
Balance at beginning of period	$	597		$	(230	)	$	(3	)	$	(2	)
Other comprehensive (loss) income:
Net change from periodic revaluations		(342	)		504			15			(5	)
Tax benefit (expense)		103			(156	)		(4	)		1
Total Other comprehensive (loss) income before reclassifications, net of tax		(239	)		348			11			(4	)
Net amount reclassified to earnings:
Aluminum contracts(5)		(6	)		23			—			—
Energy contracts(6)		1			4			—			—
Foreign exchange contracts(5)		1			1			—			—
Interest rate contracts(7)		8			1			5			—
Nickel contracts(6)		1			—			—			—
Sub-total		5			29			5			—
Tax benefit (expense)(2)		1			(7	)		(2	)		—
Total amount reclassified from Accumulated other comprehensive loss, net of tax(8)		6			22			3			—
Total Other comprehensive (loss) income		(233	)		370			14			(4	)
Balance at end of period	$	364		$	140		$	11		$	(6	)

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

⁽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⁾  In all periods presented, unrealized and realized gains and losses related to these securities were immaterial. Realized gains and losses were included in Other income, net on the accompanying Statement of Consolidated Operations.

⁽⁵⁾  These amounts were included in Sales on the accompanying Statement of Consolidated Operations.

⁽⁶⁾  These amounts were included in Cost of goods sold on the accompanying Statement of Consolidated Operations.

⁽⁷⁾  For Alcoa, $7 of the amount in both the second quarter ended and six months ended as of June 30, 2016 was included in Other income, net on the accompanying Statement of Consolidated Operations. The remaining amount in both the second quarter ended and six months ended as of June 30, 2016 and the entire amount in both the second quarter ended and six months ended as of June 30, 2015 were included in Interest expense on the accompanying Statement of Consolidated Operations. For Noncontrolling interests, the amount in both the second quarter ended and six months ended as of June 30, 2016 was included in Other income, net on the accompanying Statement of Consolidated Operations.

⁽⁸⁾  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 1 through 7.

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Restructuring and Other Charges

6 Months Ended

Jun. 30, 2016

Restructuring and Related Activities [Abstract]

Restructuring and Other Charges

D. Restructuring and Other Charges – In the second quarter and six-month period of 2016, Alcoa recorded Restructuring and other charges of $23 ($16 after-tax and noncontrolling interest) and $116 ($77 after-tax and noncontrolling interest), respectively.

Restructuring and other charges in the 2016 second quarter included $15 ($11 after-tax and noncontrolling interest) for layoff costs related to cost reduction initiatives and the planned separation of Alcoa (see Note P), including the separation of approximately 540 employees (300 in the Engineered Products and Solutions segment and 240 in the Transportation and Construction Solutions segment); $8 ($6 after-tax and noncontrolling interest) for additional net costs related to decisions made in the fourth quarter of 2015 to permanently close and demolish the Warrick (Indiana) smelter and to curtail the Wenatchee (Washington) smelter and Point Comfort (Texas) refinery (see below); a net charge of $8 ($4 after-tax and noncontrolling interest) for other miscellaneous items; and $8 ($5 after-tax and noncontrolling interest) for the reversal of a number of small layoff reserves related to prior periods.

In the 2016 six-month period, Restructuring and other charges included $86 ($56 after-tax and noncontrolling interest) for additional net costs related to decisions made in the fourth quarter of 2015 to permanently close and demolish the Warrick (Indiana) smelter and to curtail the Wenatchee (Washington) smelter and Point Comfort (Texas) refinery (see below); $34 ($25 after-tax and noncontrolling interest) for layoff costs related to cost reduction initiatives and the planned separation of Alcoa (see Note P), including the separation of approximately 1,100 employees (800 in the Engineered Products and Solutions segment, 240 in the Transportation and Construction Solutions segment, and 30 each in the Primary Metals and Global Rolled Products segments); a net charge of $8 ($4 after-tax and noncontrolling interest) for other miscellaneous items; and $12 ($8 after-tax and noncontrolling interest) for the reversal of a number of small layoff reserves related to prior periods.

In the 2016 six-month period, costs related to the closure and curtailment actions included accelerated depreciation of $70 related to the Warrick smelter as it continued to operate during the 2016 first quarter; $20 ($1 in the 2016 second quarter) for the reversal of severance costs initially recorded in the 2015 fourth quarter; and $36 ($9 in the 2016 second quarter) in other costs. Additionally in the 2016 six-month period, remaining inventories, mostly operating supplies and raw materials, were written down to their net realizable value, resulting in a charge of $5 ($3 after-tax and noncontrolling interest) ($2 ($1 after-tax and noncontrolling interest) in the 2016 second quarter), which was recorded in Cost of goods sold on the accompanying Statement of Consolidated Operations. The other costs of $36 ($9 in the 2016 second quarter) represent $27 ($10 in the 2016 second quarter) for contract termination, $7 in asset retirement obligations for the rehabilitation of a coal mine related to the Warrick smelter, and $2 ($(1) in the 2016 second quarter) in other related costs. Additional charges may be recognized in future periods related to these actions.

In the second quarter and six-month period of 2015, Alcoa recorded Restructuring and other charges of $217 ($141 after-tax and noncontrolling interest) and $394 ($299 after-tax and noncontrolling interest), respectively.

Restructuring and other charges in the 2015 second quarter included $179 ($115 after-tax and noncontrolling interest) for exit costs related to decisions to permanently shut down and demolish a smelter and a power station (see below); $18 ($10 after-tax and noncontrolling interest) for the separation of approximately 120 employees (Alumina segment) and other charges related to the decisions to temporarily curtail both a portion of the capacity (443,000 metric-tons-per-year) at the refinery in Suriname and the remaining capacity (74,000 metric-tons-per-year) at the São Luís smelter in Brazil; $16 ($13 after-tax and noncontrolling interest) for layoff costs, including the separation of approximately 390 employees (210 in the Engineered Products and Solutions segment, 150 in the Primary Metals segment, and 30 in the Global Rolled Products segment); $10 ($7 after-tax and noncontrolling interest) related to post-closing adjustments associated with two December 2014 divestitures; a net credit of $5 ($3 after-tax and noncontrolling interest) for other miscellaneous items; and $1 ($1 after-tax and noncontrolling interest) for the reversal of a few layoff reserves related to prior periods.

In the 2015 six-month period, Restructuring and other charges included the aforementioned $179 ($115 after-tax and noncontrolling interest); $159 ($149 after-tax and noncontrolling interest) related to the March 2015 divestiture of a rolling mill in Russia and post-closing adjustments associated with three December 2014 divestitures; $38 ($23 after-tax and noncontrolling interest) for the separation of approximately 800 employees (680 in the Primary Metals segment and 120 in the Alumina segment), supplier contract-related costs, and other charges associated with the aforementioned decisions to temporarily curtail certain capacity at the São Luís smelter and the refinery in Suriname; $29 ($21 after-tax and noncontrolling interest) for layoff costs, including the separation of approximately 600 employees (290 in the Engineered Products and Solutions segment, 150 in the Primary Metals segment, 60 in the Global Rolled Products segment, 50 in the Transportation and Construction Solutions segment, and 50 in Corporate); a net credit of $3 ($2 after-tax and noncontrolling interest) for other miscellaneous items; and $8 ($7 after-tax and noncontrolling interest) for the reversal of a number of small layoff reserves related to prior periods.

In the second quarter of 2015, management approved the permanent shutdown and demolition of the Poços de Caldas smelter (capacity of 96,000 metric-tons-per-year) in Brazil and the Anglesea power station (includes the closure of a related coal mine) in Australia. The entire capacity at Poços de Caldas has been temporarily idled since May 2014 and the Anglesea power station was shut down at the end of August 2015. Demolition and remediation activities related to the Poços de Caldas smelter and the Anglesea power station began in late 2015 and are expected to be completed by the end of 2026 and 2020, respectively.

The decision on the Poços de Caldas smelter was due to management’s conclusion that the smelter was no longer competitive as a result of challenging global market conditions for primary aluminum, which led to the initial curtailment, that have not dissipated and higher costs. For the Anglesea power station, the decision was made because a sale process did not result in a sale and there would be imminent operating costs and financial constraints related to this site in the remainder of 2015 and beyond, including significant costs to source coal from available resources, necessary maintenance costs, and a depressed outlook for forward electricity prices. The Anglesea power station previously supplied approximately 40 percent of the power needs for the Point Henry smelter, which was closed in August 2014.

In the 2015 second quarter and six-month period, costs related to the shutdown actions included asset impairments of $86, representing the write-off of the remaining book value of all related properties, plants, and equipment; $11 for the layoff of approximately 100 employees (Primary Metals segment); and $82 in other exit costs. Additionally in the 2015 second quarter and six-month period, remaining inventories, mostly operating supplies and raw materials, were written down to their net realizable value, resulting in a charge of $4 ($2 after-tax and noncontrolling interest), which was recorded in Cost of goods sold on the accompanying Statement of Consolidated Operations. The other exit costs of $82 represent $45 in asset retirement obligations and $29 in environmental remediation, both of which were triggered by the decisions to permanently shut down and demolish the aforementioned structures in Brazil and Australia (includes the rehabilitation of a related coal mine), and $8 in supplier and customer contract-related costs.

Alcoa does not include Restructuring and other charges in the results of its reportable segments. The pretax impact of allocating such charges to segment results would have been as follows:

	Second quarter ended June 30,					Six months ended June 30,
	2016			2015		2016			2015
Alumina	$	(1	)	$	10	$	4		$	17
Primary Metals		10			173		88			198
Global Rolled Products		—			1		2			136
Engineered Products and Solutions		9			8		17			11
Transportation and Construction Solutions		8			1		8			3
Segment total		26			193		119			365
Corporate		(3	)		24		(3	)		29
Total restructuring and other charges	$	23		$	217	$	116		$	394

As of June 30, 2016, approximately 730 of the 1,100 employees associated with 2016 restructuring programs, approximately 3,800 of the 5,000 employees (previously 5,200) associated with 2015 restructuring programs, and approximately 2,600 of the 2,700 employees (previously 2,870) associated with 2014 restructuring programs were separated. The total number of employees associated with both 2015 and 2014 restructuring programs was updated to reflect employees, who were initially identified for separation, accepting other positions within Alcoa and natural attrition. Most of the remaining separations for the 2016 restructuring programs and all of the remaining separations for the 2015 and 2014 restructuring programs are expected to be completed by the end of 2016.

In the 2016 second quarter and six-month period, cash payments of $9 and $11, respectively, were made against layoff reserves related to 2016 restructuring programs, $30 and $92, respectively, were made against layoff reserves related to 2015 restructuring programs, and $1 and $3, respectively, were made against layoff reserves related to 2014 restructuring programs.

Activity and reserve balances for restructuring charges were as follows:

	Layoff costs			Other exit costs			Total
Reserve balances at December 31, 2014	$	98		$	34		$	132
2015:
Cash payments		(111	)		(12	)		(123	)
Restructuring charges		299			233			532
Other*		(60	)		(231	)		(291	)
Reserve balances at December 31, 2015		226			24			250
2016:
Cash payments		(107	)		(22	)		(129	)
Restructuring charges		34			41			75
Other*		(31	)		1			(30	)
Reserve balances at June 30, 2016	$	122		$	44		$	166

* Other includes reversals of previously recorded restructuring charges and the effects of foreign currency translation. In the 2016 six-month period, Other for layoff costs also included a reclassification of $1 in pension benefits costs, as this obligation was included in Alcoa’s separate liability for pension benefits obligations (see Note N). Additionally in the 2016 six-month period, Other for other exit costs also included a reclassification of $7 in asset retirement obligations, as this liability was included in Alcoa’s separate reserve for asset retirement obligations. In 2015, Other for layoff costs also included a reclassification of $35 in pension and other postretirement benefits costs, as these obligations were included in Alcoa’s separate liability for pension and other postretirement benefits obligations. Additionally in 2015, Other for other exit costs also included a reclassification of the following restructuring charges: $76 in asset retirement and $86 in environmental obligations, as these liabilities were included in Alcoa’s separate reserves for asset retirement obligations and environmental remediation.

The remaining reserves are expected to be paid in cash during the remainder of 2016, with the exception of approximately $25 to $30, which is expected to be paid over the next several years for ongoing site remediation work and special layoff benefit payments.

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Acquisitions and Divestitures

6 Months Ended

Jun. 30, 2016

Business Combinations [Abstract]

Acquisitions and Divestitures

E. Acquisitions and Divestitures – In April 2016, Alcoa completed the sale of the Remmele Medical business to LISI MEDICAL for $102 in cash ($99 net of transaction costs), which was included in Proceeds from the sale of assets and businesses on the accompanying Statement of Consolidated Cash Flows. This business, which was part of the RTI International Metals (RTI) acquisition (see below), manufactures precision-machined metal products for customers in the minimally invasive surgical device and implantable device markets. No gain was recorded on this transaction as the excess of the proceeds over the carrying value of the net assets of this business was reflected as a purchase price adjustment (decrease to goodwill of $44) to the preliminary allocation of the purchase price related to Alcoa’s acquisition of RTI. While owned by Alcoa, the operating results and assets and liabilities of this business were included in the Engineered Products and Solutions segment. This business generated sales of approximately $20 from January 1, 2016 through the divestiture date, April 29, 2016, and, at the time of the divestiture, had approximately 330 employees. This transaction is subject to certain post-closing adjustments as defined in the sale agreement.

In July 2016, Alcoa’s wholly-owned subsidiary, Alcoa Power Generating Inc., reached an agreement to sell its 215-megawatt Yadkin Hydroelectric Project (Yadkin) to ISQ Hydro Aggregator LLC. Yadkin encompasses four hydroelectric power developments (reservoirs, dams and powerhouses), known as High Rock, Tuckertown, Narrows and Falls, situated along a 38-mile stretch of the Yadkin River through the central part of North Carolina. This transaction is expected to close in the second half of 2016, subject to customary federal and state regulatory approvals. The power generated by Yadkin is primarily sold into the open market. Yadkin generated sales of approximately $20 in 2015, and had approximately 35 employees as of June 30, 2016. The carrying value of the net assets to be sold was $128 and $127 as of June 30, 2016 and December 31, 2015, respectively, which consist mostly of properties, plants, and equipment.

In March 2015, Alcoa completed the acquisition of an aerospace structural castings company, TITAL, for $204 (€188) in cash (an additional $1 (€1) was paid in September 2015 to settle working capital in accordance with the purchase agreement). TITAL, a privately held company with approximately 650 employees based in Germany, produces aluminum and titanium investment casting products for the aerospace and defense markets. The purpose of this acquisition is to capture increasing demand for advanced jet engine components made of titanium, establish titanium-casting capabilities in Europe, and expand existing aluminum casting capacity. The assets, including the associated goodwill, and liabilities of this business were included within Alcoa’s Engineered Products and Solutions segment since the date of acquisition. Based on the preliminary allocation of the purchase price, goodwill of $118 was recorded for this transaction. In the first quarter of 2016, the allocation of the purchase price was finalized, based, in part, on the completion of a third-party valuation of certain assets acquired, resulting in a $1 reduction of the initial goodwill amount. None of the $117 in goodwill is deductible for income tax purposes and no other intangible assets were identified. This transaction is no longer subject to post-closing adjustments.

In July 2015, Alcoa completed the acquisition of RTI, a global supplier of titanium and specialty metal products and services for the commercial aerospace, defense, energy, and medical device markets, for $870 in Alcoa common stock. The preliminary allocation of the purchase price resulted in total assets of $1,752, including $240 in goodwill and $73 in intangibles, $822 in total liabilities, and $60 in additional capital. In the 2016 six-month period, Alcoa updated the estimated beginning balances of certain assets acquired, including a decrease to each of properties, plants, and equipment of $110, inventories of $48, and intangible assets of $33 and an increase to goodwill of $54. These changes were based, in part, on management’s review of information from a preliminary third-party valuation and the sale of the medical device business (see above). The current allocation of the purchase price, which will be finalized in the third quarter of 2016, is subject to change upon further review by management.

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Inventories

6 Months Ended

Jun. 30, 2016

Inventory Disclosure [Abstract]

Inventories

F. Inventories

	June 30, 2016		December 31, 2015
Finished goods	$	827	$	811
Work-in-process		1,344		1,272
Bauxite and alumina		416		445
Purchased raw materials		650		720
Operating supplies		201		194
	$	3,438	$	3,442

At June 30, 2016 and December 31, 2015, the total amount of inventories valued on a LIFO basis was $1,335 and $1,373, respectively. If valued on an average-cost basis, total inventories would have been $567 and $559 higher at June 30, 2016 and December 31, 2015, respectively.

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Investments

6 Months Ended

Jun. 30, 2016

Investments Schedule [Abstract]

Investments

G. Investments – A summary of unaudited financial information for Alcoa’s equity investments is as follows (amounts represent 100% of investee financial information):

	Second quarter ended June 30,					Six months ended June 30,
	2016		2015			2016		2015
Sales	$	904	$	971		$	1,796	$	1,857
Cost of goods sold		679		862			1,360		1,557
Net income (loss)		14		(45	)		29		(86	)

In April 2016, Alcoa’s majority-owned subsidiary, Alcoa of Australia Limited (AofA), sold its 20% interest in a consortium, DBP, the owner and operator of the Dampier to Bunbury Natural Gas Pipeline (DBNGP) in Western Australia, to the only other member of the consortium, DUET Group. AofA received $145 (A$192) in cash, which was included in Sales of investments on the accompanying Statement of Consolidated Cash Flows, and recorded a gain of $27 (A$35) ($11 (A$15) after-tax and noncontrolling interest) in Other income, net on the accompanying Statement of Consolidated Operations. Prior to this transaction, AofA’s 20% interest was previously classified as an equity investment on Alcoa’s Consolidated Balance Sheet. As part of the transaction, AofA will maintain its current access to approximately 30% of the DBNGP transmission capacity for gas supply to its three alumina refineries in Western Australia. AofA is part of Alcoa World Alumina and Chemicals (AWAC), an unincorporated joint venture that consists of a group of companies, which are owned 60% by Alcoa and 40% by Alumina Limited of Australia.

In the 2016 six-month period, Alcoa sold various exchange-traded fixed income and equity securities held by its captive insurance company for $130, which was included in Sales of investments on the accompanying Statement of Consolidated Cash Flows, and recorded a loss of $3 ($2 after-tax) in Other income, net on the accompanying Statement of Consolidated Operations. Previously, these securities were classified as available-for-sale investments on Alcoa’s Consolidated Balance Sheet and were carried at fair value with unrealized gains and losses recognized in other comprehensive income. As of June 30, 2016 and December 31, 2015, the carrying value of available-for-sale-securities was $68 and $193, respectively, which was included in Investments on the accompanying Consolidated Balance Sheet.

H. Other Noncurrent Assets – In the first quarter of 2016, Alcoa received $234 in proceeds from the redemption of certain company-owned life insurance policies. In the second quarter of 2016, Alcoa liquidated additional company-owned life insurance policies for $223 in cash. Both of these amounts were included in Proceeds from the sale of assets and businesses on the accompanying Statement of Consolidated Cash Flows. As the cash received was equivalent to the cash surrender value of these policies, no gain or loss was recognized on the sales of these policies. As of June 30, 2016 and December 31, 2015, the cash surrender value of life insurance policies was $26 and $492, respectively, which was included in Other noncurrent assets on the accompanying Consolidated Balance Sheet.

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Other Noncurrent Assets

6 Months Ended

Jun. 30, 2016

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Other Noncurrent Assets

H. Other Noncurrent Assets – In the first quarter of 2016, Alcoa received $234 in proceeds from the redemption of certain company-owned life insurance policies. In the second quarter of 2016, Alcoa liquidated additional company-owned life insurance policies for $223 in cash. Both of these amounts were included in Proceeds from the sale of assets and businesses on the accompanying Statement of Consolidated Cash Flows. As the cash received was equivalent to the cash surrender value of these policies, no gain or loss was recognized on the sales of these policies. As of June 30, 2016 and December 31, 2015, the cash surrender value of life insurance policies was $26 and $492, respectively, which was included in Other noncurrent assets on the accompanying Consolidated Balance Sheet.

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Contingencies and Commitments

6 Months Ended

Jun. 30, 2016

Commitments and Contingencies Disclosure [Abstract]

Contingencies and Commitments

I. Contingencies and Commitments

Contingencies

Litigation

On June 5, 2015, Alcoa World Alumina LLC (“AWA”) and St. Croix Alumina, L.L.C. (“SCA”) filed a complaint in Delaware Chancery Court for a declaratory judgment and injunctive relief to resolve a dispute between Alcoa and Glencore Ltd. (“Glencore”) with respect to claimed obligations under a 1995 asset purchase agreement between Alcoa and Glencore. The dispute arose from Glencore’s demand that Alcoa indemnify it for liabilities it may have to pay to Lockheed Martin (“Lockheed”) related to the St. Croix alumina refinery. Lockheed had earlier filed suit against Glencore in federal court in New York seeking indemnity for liabilities it had incurred and would incur to the U.S. Virgin Islands to remediate certain properties at the refinery property and claimed that Glencore was required by an earlier, 1989 purchase agreement to indemnify it. Glencore had demanded that Alcoa indemnify and defend it in the Lockheed case and threatened to claim against Alcoa in the New York action despite exclusive jurisdiction for resolution of disputes under the 1995 purchase agreement being in Delaware. After Glencore conceded that it was not seeking to add Alcoa to the New York action, AWA and SCA dismissed their complaint in the Chancery Court case and on August 6, 2015 filed a complaint for declaratory judgment in Delaware Superior Court. AWA and SCA filed a motion for judgment on the pleadings on September 16, 2015. Glencore answered AWA’s and SCA’s complaint and asserted counterclaims on August 27, 2015, and on October 2, 2015 filed its own motion for judgment on the pleadings. Argument on the parties’ motions was held by the court on December 7, 2015, and by order dated February 8, 2016, the court granted Alcoa’s motion and denied Glencore’s motion, resulting in Alcoa not being liable to indemnify Glencore for the Lockheed action. The decision also leaves for pretrial discovery and possible summary judgment or trial Glencore’s claims for costs and fees it incurred in defending and settling an earlier Superfund action brought against Glencore by the Government of the Virgin Islands. On February 17, 2016, Glencore filed notice of its application for interlocutory appeal of the February 8, 2016 ruling. AWA and SCA filed an opposition to that application on February 29, 2016. On March 10, 2016, the court denied Glencore’s motion for interlocutory appeal and on the same day entered judgment on claims other than Glencore’s claims for costs and fees it incurred in defending and settling the earlier Superfund action brought against Glencore by the Government of the Virgin Islands. On March 29, 2016, Glencore filed a withdrawal of its notice of interlocutory appeal, and on April 6, 2016, Glencore filed an appeal of the court’s March 10, 2016 judgment to the Delaware Supreme Court. At this time, the Company is unable to reasonably predict the ultimate outcome for this matter.

Before 2002, Alcoa purchased power in Italy in the regulated energy market and received a drawback of a portion of the price of power under a special tariff in an amount calculated in accordance with a published resolution of the Italian Energy Authority, Energy Authority Resolution n. 204/1999 (“204/1999”). In 2001, the Energy Authority published another resolution, which clarified that the drawback would be calculated in the same manner, and in the same amount, in either the regulated or unregulated market. At the beginning of 2002, Alcoa left the regulated energy market to purchase energy in the unregulated market. Subsequently, in 2004, the Energy Authority introduced regulation no. 148/2004 which set forth a different method for calculating the special tariff that would result in a different drawback for the regulated and unregulated markets. Alcoa challenged the new regulation in the Administrative Court of Milan and received a favorable judgment in 2006. Following this ruling, Alcoa continued to receive the power price drawback in accordance with the original calculation method, through 2009, when the European Commission declared all such special tariffs to be impermissible “state aid.” In 2010, the Energy Authority appealed the 2006 ruling to the Consiglio di Stato (final court of appeal). On December 2, 2011, the Consiglio di Stato ruled in favor of the Energy Authority and against Alcoa, thus presenting the opportunity for the energy regulators to seek reimbursement from Alcoa of an amount equal to the difference between the actual drawback amounts received over the relevant time period, and the drawback as it would have been calculated in accordance with regulation 148/2004. On February 23, 2012, Alcoa filed its appeal of the decision of the Consiglio di Stato (this appeal was subsequently withdrawn in March 2013). On March 26, 2012, Alcoa received a letter from the agency (Cassa Conguaglio per il Settore Eletrico (CCSE)) responsible for making and collecting payments on behalf of the Energy Authority demanding payment in the amount of approximately $110 (€85), including interest. By letter dated April 5, 2012, Alcoa informed CCSE that it disputes the payment demand of CCSE since (i) CCSE was not authorized by the Consiglio di Stato decisions to seek payment of any amount, (ii) the decision of the Consiglio di Stato has been appealed (see above), and (iii) in any event, no interest should be payable. On April 29, 2012, Law No. 44 of 2012 (“44/2012”) came into effect, changing the method to calculate the drawback. On February 21, 2013, Alcoa received a revised request letter from CCSE demanding Alcoa’s subsidiary, Alcoa Trasformazioni S.r.l., make a payment in the amount of $97 (€76), including interest, which reflects a revised calculation methodology by CCSE and represents the high end of the range of reasonably possible loss associated with this matter of $0 to $97 (€76). Alcoa rejected that demand and formally challenged it through an appeal before the Administrative Court on April 5, 2013. The Administrative Court scheduled a hearing for December 19, 2013, which was subsequently postponed until April 17, 2014, and further postponed until June 19, 2014. On that date, the Administrative Court listened to Alcoa’s oral argument, and on September 2, 2014, rendered its decision. The Administrative Court declared the payment request of CCSE and the Energy Authority to Alcoa to be unsubstantiated based on the 148/2004 resolution with respect to the January 19, 2007 through November 19, 2009 timeframe. On December 18, 2014, the CCSE and the Energy Authority appealed the Administrative Court’s September 2, 2014 decision; however, a date for the hearing has not been scheduled. As a result of the conclusion of the European Commission Matter on January 26, 2016 (see Note N in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015), management modified its outlook with respect to a portion of the pending legal proceedings related to this matter. As such, a charge of $37 (€34) was recorded in Restructuring and other charges for the year ended December 31, 2015 to establish a partial reserve for this matter. At this time, the Company is unable to reasonably predict the ultimate outcome for this matter.

Environmental Matters

Alcoa participates in environmental assessments and cleanups at more than 100 locations. These include owned or operating facilities and adjoining properties, previously owned or operating facilities and adjoining properties, and waste sites, including Superfund (Comprehensive Environmental Response, Compensation and Liability Act (CERCLA)) sites.

A liability is recorded for environmental remediation when a cleanup program becomes probable and the costs can be reasonably estimated. As assessments and cleanups proceed, the liability is adjusted based on progress made in determining the extent of remedial actions and related costs. The liability can change substantially due to factors such as the nature and extent of contamination, changes in remedial requirements, and technological changes, among others.

Alcoa’s remediation reserve balance was $606 and $604 at June 30, 2016 and December 31, 2015 (of which $49 and $50 was classified as a current liability), respectively, and reflects the most probable costs to remediate identified environmental conditions for which costs can be reasonably estimated.

In the 2016 second quarter and six-month period, the remediation reserve was increased by $6 and $13, respectively. The change in both periods was due to a net charge associated with a number of sites and was recorded in Cost of goods sold on the accompanying Statement of Consolidated Operations.

Payments related to remediation expenses applied against the reserve were $14 and $25 in the 2016 second quarter and six-month period, respectively. These amounts include expenditures currently mandated, as well as those not required by any regulatory authority or third party. In the 2016 second quarter and six-month period, the change in the reserve also reflects an increase of $6 and $11, respectively, due to the effects of foreign currency translation and an increase of $3 related to the acquisition of RTI International Metals (see Note E).

Included in annual operating expenses are the recurring costs of managing hazardous substances and environmental programs. These costs are estimated to be approximately 2% of cost of goods sold.

The following discussion provides details regarding the current status of certain significant reserves related to current or former Alcoa sites.

Massena West, NY—Alcoa has an ongoing remediation project related to the Grasse River, which is adjacent to Alcoa’s Massena plant site. Many years ago, it was determined that sediments and fish in the river contain varying levels of polychlorinated biphenyls (PCBs). The project, which was selected by the U.S. Environmental Protection Agency (EPA) in a Record of Decision (ROD) issued in April 2013, is aimed at capping PCB contaminated sediments with concentration in excess of one part per million in the main channel of the river and dredging PCB contaminated sediments in the near-shore areas where total PCBs exceed one part per million. At June 30, 2016 and December 31, 2015, the reserve balance associated with this matter was $232 and $234, respectively. Alcoa is in the planning and design phase, which is expected to be completed in 2017. Subsequently in 2017, the actual remediation fieldwork is expected to commence and take approximately four years. The majority of the project funding is expected to be spent between 2017 and 2021.

Sherwin, TX—In connection with the sale of the Sherwin alumina refinery, which was required to be divested as part of the Reynolds merger in 2000, Alcoa agreed to retain responsibility for the remediation of the then existing environmental conditions, as well as a pro rata share of the final closure of the active bauxite residue waste disposal areas (known as the Copano facility). Alcoa’s share of the closure costs is proportional to the total period of operation of the active waste disposal areas. At June 30, 2016 and December 31, 2015, the reserve balance associated with Sherwin was $30. Approximately half of the project funding is expected to be spent through 2019. The remainder is not expected to be spent in the foreseeable future as it is dependent upon the operating life of the active waste disposal areas.

East St. Louis, IL—Alcoa has an ongoing remediation project related to an area used for the disposal of bauxite residue from former alumina refining operations. The project, which was selected by the EPA in a ROD issued in July 2012, is aimed at implementing a soil cover over the affected area. On November 1, 2013, the U.S. Department of Justice lodged a consent decree on behalf of the EPA for Alcoa to conduct the work outlined in the ROD. This consent decree was entered as final in February 2014 by the U.S. Department of Justice. As a result, Alcoa began construction in March 2014; the field work on this project was completed at the end of June 2016. Alcoa is now in the documentation and final reporting stage with the EPA, which will continue into 2017 when this matter will transition into a long-term inspection and monitoring program (Alcoa has a second project in East St. Louis that is separate from the matter presented herein on which Alcoa is expecting an EPA decision at some point in the remainder of 2016 – any resulting liability is not expected to be material). At June 30, 2016 and December 31, 2015, the reserve balance associated with this matter was $6 and $8, respectively.

Fusina and Portovesme, Italy—In 1996, Alcoa acquired the Fusina smelter and rolling operations and the Portovesme smelter, both of which are owned by Alcoa’s subsidiary Alcoa Trasformazioni S.r.l. (“Trasformazioni”), from Alumix, an entity owned by the Italian Government. At the time of the acquisition, Alumix indemnified Alcoa for pre-existing environmental contamination at the sites. In 2004, the Italian Ministry of Environment and Protection of Land and Sea (MOE) issued orders to Trasformazioni and Alumix for the development of a clean-up plan related to soil contamination in excess of allowable limits under legislative decree and to institute emergency actions and pay natural resource damages. Trasformazioni appealed the orders and filed suit against Alumix, among others, seeking indemnification for these liabilities under the provisions of the acquisition agreement. In 2009, Ligestra S.r.l. (“Ligestra”), Alumix’s successor, and Trasformazioni agreed to a stay of the court proceedings while investigations were conducted and negotiations advanced towards a possible settlement.

In December 2009, Trasformazioni and Ligestra reached an initial agreement for settlement of the liabilities related to Fusina while negotiations continued related to Portovesme (see below). The agreement outlined an allocation of payments to the MOE for emergency action and natural resource damages and the scope and costs for a proposed soil remediation project, which was formally presented to the MOE in mid-2010. The agreement was contingent upon final acceptance of the remediation project by the MOE. As a result of entering into this agreement, Alcoa increased the reserve by $12 in 2009 for Fusina. Based on comments received from the MOE and local and regional environmental authorities, Trasformazioni submitted a revised remediation plan in the first half of 2012; however, such revisions did not require any change to the existing reserve. In October 2013, the MOE approved the project submitted by Alcoa, resulting in no adjustment to the reserve.

In January 2014, in anticipation of Alcoa reaching a final administrative agreement with the MOE, Alcoa and Ligestra entered into a final agreement related to Fusina for allocation of payments to the MOE for emergency action and natural resource damages and the costs for the approved soil remediation project. The agreement resulted in Ligestra assuming 50% to 80% of all payments and remediation costs. On February 27, 2014, Alcoa and the MOE reached a final administrative agreement for conduct of work. The agreement includes both a soil and groundwater remediation project estimated to cost $33 (€24) and requires payments of $25

(€18) to the MOE for emergency action and natural resource damages. The remediation projects are slated to begin as soon as Alcoa receives final approval from the Ministry of Infrastructure. Based on the final agreement with Ligestra, Alcoa’s share of all costs and payments is $17 (€12), of which $9 (€6) related to the damages will be paid annually over a 10-year period, which began in April 2014, and was previously fully reserved.

Separately, in 2009, due to additional information derived from the site investigations conducted at Portovesme, Alcoa increased the reserve by $3. In November 2011, Trasformazioni and Ligestra reached an agreement for settlement of the liabilities related to Portovesme, similar to the one for Fusina. A proposed soil remediation project for Portovesme was formally presented to the MOE in June 2012. Neither the agreement with Ligestra nor the proposal to the MOE resulted in a change to the reserve for Portovesme. In November 2013, the MOE rejected the proposed soil remediation project and requested a revised project be submitted. In May 2014, Trasformazioni and Ligestra submitted a revised soil remediation project that addressed certain stakeholders’ concerns. Alcoa increased the reserve by $3 in 2014 to reflect the estimated higher costs associated with the revised soil remediation project, as well as current operating and maintenance costs of the Portovesme site.

In October 2014, the MOE required a further revised project be submitted to reflect the removal of a larger volume of contaminated soil than what had been proposed, as well as design changes for the cap related to the remaining contaminated soil left in place and the expansion of an emergency containment groundwater pump and treatment system that was previously installed. Trasformazioni and Ligestra submitted the further revised soil remediation project in February 2015. As a result, Alcoa increased the reserve by $7 in March 2015 to reflect the increase in the estimated costs of the project. In October 2015, Alcoa received a final ministerial decree approving the February 2015 revised soil remediation project. Work on the soil remediation project commenced in the second quarter of 2016 and is expected to be completed in 2019. Alcoa and Ligestra are now working on a final groundwater remediation project, which will be submitted to the MOE for review during the second half of 2016. The ultimate outcome of this matter may result in a change to the existing reserve for Portovesme.

Baie Comeau, Quebec, Canada—In August 2012, Alcoa presented an analysis of remediation alternatives to the Quebec Ministry of Sustainable Development, Environment, Wildlife and Parks (MDDEP), in response to a previous request, related to known PCBs and polycyclic aromatic hydrocarbons (PAHs) contained in sediments of the Anse du Moulin bay. As such, Alcoa increased the reserve for Baie Comeau by $25 in 2012 to reflect the estimated cost of Alcoa’s recommended alternative, consisting of both dredging and capping of the contaminated sediments. In July 2013, Alcoa submitted the Environmental Impact Assessment for the project to the MDDEP. The MDDEP notified Alcoa that the project as it was submitted was approved and a final ministerial decree was issued in July 2015. As a result, no further adjustment to the reserve was required in 2015. The decree provides final approval for the project and allows Alcoa to start work on the final project design, which is expected to be completed in the second half of 2016 with construction on the project expected to begin in 2017. Completion of the final project design and bidding of the project may result in additional liability in a future period.

Mosjøen, Norway—In September 2012, Alcoa presented an analysis of remediation alternatives to the Norwegian Environmental Agency (NEA) (formerly the Norwegian Climate and Pollution Agency, or “Klif”), in response to a previous request, related to known PAHs in the sediments located in the harbor and extending out into the fjord. As such, Alcoa increased the reserve for Mosjøen by $20 in 2012 to reflect the estimated cost of the baseline alternative for dredging of the contaminated sediments. A proposed project reflecting this alternative was formally presented to the NEA in June 2014, and was resubmitted in late 2014 to reflect changes by the NEA. The revised proposal did not result in a change to the reserve for Mosjøen.

In April 2015, the NEA notified Alcoa that the revised project was approved and required submission of the final project design before issuing a final order. Alcoa completed and submitted the final project design, which identified a need to stabilize the related wharf structure to allow for the sediment dredging in the harbor. As a result, Alcoa increased the reserve for Mosjøen by $11 in June 2015 to reflect the estimated cost of the wharf stabilization. Also in June 2015, the NEA issued a final order approving the project as well as the final project design. In September 2015, Alcoa increased the reserve by $1 to reflect the potential need (based on prior experience with similar projects) to perform additional dredging if the results of sampling, which is required by the order, don’t achieve the required cleanup levels. Project construction commenced in the first quarter of 2016 and is expected to be completed by the end of 2017.

Tax

In September 2010, following a corporate income tax audit covering the 2003 through 2005 tax years, an assessment was received as a result of Spain’s tax authorities disallowing certain interest deductions claimed by a Spanish consolidated tax group owned by the Company. An appeal of this assessment in Spain’s Central Tax Administrative Court by the Company was denied in October 2013. In December 2013, the Company filed an appeal of the assessment in Spain’s National Court.

Additionally, following a corporate income tax audit of the same Spanish tax group for the 2006 through 2009 tax years, Spain’s tax authorities issued an assessment in July 2013 similarly disallowing certain interest deductions. In August 2013, the Company filed an appeal of this second assessment in Spain’s Central Tax Administrative Court, which was denied in January 2015. The Company filed an appeal of this second assessment in Spain’s National Court in March 2015.

At June 30, 2016, the combined assessments total $269 (€243), including interest. The Company believes it has meritorious arguments to support its tax position and intends to vigorously litigate the assessments through Spain’s court system. However, in the event the Company is unsuccessful, a portion of the assessments may be offset with existing net operating losses available to the Spanish consolidated tax group. Additionally, it is possible that the Company may receive similar assessments for tax years subsequent to 2009. At this time, the Company is unable to reasonably predict an outcome for this matter.

In March 2013, Alcoa’s subsidiary, Alcoa World Alumina Brasil (AWAB), was notified by the Brazilian Federal Revenue Office (RFB) that approximately $110 (R$220) of value added tax credits previously claimed are being disallowed and a penalty of 50% assessed. Of this amount, AWAB received $41 (R$82) in cash in May 2012. The value added tax credits were claimed by AWAB for both fixed assets and export sales related to the Juruti bauxite mine and São Luís refinery expansion. The RFB has disallowed credits they allege belong to the consortium in which AWAB owns an interest and should not have been claimed by AWAB. Credits have also been disallowed as a result of challenges to apportionment methods used, questions about the use of the credits, and an alleged lack of documented proof. AWAB presented defense of its claim to the RFB on April 8, 2013. If AWAB is successful in this administrative process, the RFB would have no further recourse. If unsuccessful in this process, AWAB has the option to litigate at a judicial level. Separately from AWAB’s administrative appeal, in June 2015, new tax law was enacted repealing the provisions in the tax code that were the basis for the RFB assessing a 50% penalty in this matter. As such, the estimated range of reasonably possible loss is $0 to $32 (R$103), whereby the maximum end of the range represents the portion of the disallowed credits applicable to the export sales and excludes the 50% penalty. Additionally, the estimated range of disallowed credits related to AWAB’s fixed assets is $0 to $36 (R$117), which would increase the net carrying value of AWAB’s fixed assets if ultimately disallowed. It is management’s opinion that the allegations have no basis; however, at this time, management is unable to reasonably predict an outcome for this matter.

Between 2000 and 2002, Alcoa Alumínio (Alumínio) sold approximately 2,000 metric tons of metal per month from its Poços de Caldas facility, located in the State of Minas Gerais (the “State”), to Alfio, a customer also located in the State. Sales in the State were exempted from value-added tax (VAT) requirements. Alfio subsequently sold metal to customers outside of the State, but did not pay the required VAT on those transactions. In July 2002, Alumínio received an assessment from State auditors on the theory that Alumínio should be jointly and severally liable with Alfio for the unpaid VAT. In June 2003, the administrative tribunal found Alumínio liable, and Alumínio filed a judicial case in the State in February 2004 contesting the finding. In May 2005, the Court of First Instance found Alumínio solely liable, and a panel of a State appeals court confirmed this finding in April 2006. Alumínio filed a special appeal to the Superior Tribunal of Justice (STJ) in Brasilia (the federal capital of Brazil) later in 2006. In 2011, the STJ (through one of its judges) reversed the judgment of the lower courts, finding that Alumínio should neither be solely nor jointly and severally liable with Alfio for the VAT, which ruling was then appealed by the State. In August 2012, the STJ agreed to have the case reheard before a five-judge panel. A decision from this panel is pending, but additional appeals are likely. At June 30, 2016, the assessment totaled $43 (R$139), including penalties and interest. While the Company believes it has meritorious defenses, the Company is unable to reasonably predict an outcome.

Other

In connection with the sale in 2001 of Reynolds Metals Company’s (“Reynolds,” a subsidiary of Alcoa), alumina refinery in Gregory, Texas, Reynolds assigned an Energy Services Agreement (“ESA”) with Gregory Power Partners (“Gregory Power”) for purchase of steam and electricity by the refinery. On January 11, 2016, Sherwin Alumina Company, LLC (“Sherwin”), the current owner of the refinery, and one of its affiliate entities, filed bankruptcy petitions in Corpus Christi, Texas for reorganization under Chapter 11 of the Bankruptcy Code. On January 26, 2016, Gregory Power delivered notice to Reynolds that Sherwin’s bankruptcy filing constitutes a breach of the ESA; on January 29, 2016, Reynolds responded that the filing does not constitute a breach. Sherwin has indicated that it may cease operations if an acceptable, modified ESA cannot be achieved and it is not able to continue its bauxite supply agreement with a subsidiary of Noranda Aluminum Holding Corporation. If Sherwin is unable to confirm a revised plan of reorganization to continue operation of the refinery, Reynolds may face claims under the ESA or for environmental remediation at the refinery and associated properties. This matter is neither estimable nor probable; therefore, at this time, the Company is unable to reasonably predict the ultimate outcome.

In addition to the matters discussed above, various other lawsuits, claims, and proceedings have been or may be instituted or asserted against Alcoa, including those pertaining to environmental, product liability, safety and health, and tax matters. While the amounts claimed in these other matters may be substantial, the ultimate liability cannot now be determined because of the considerable uncertainties that exist. Therefore, it is possible that the Company’s liquidity or results of operations in a particular period could be materially affected by one or more of these other matters. However, based on facts currently available, management believes that the disposition of these other matters that are pending or asserted will not have a material adverse effect, individually or in the aggregate, on the financial position of the Company.

Commitments

Investments

Alcoa has an investment in a joint venture for the development, construction, ownership, and operation of an integrated aluminum complex (bauxite mine, alumina refinery, aluminum smelter, and rolling mill) in Saudi Arabia. The joint venture is owned 74.9% by the Saudi Arabian Mining Company (known as “Ma’aden”) and 25.1% by Alcoa and consists of three separate companies as follows: one each for the mine and refinery, the smelter, and the rolling mill. Alcoa accounts for its investment in the joint venture under the equity method. Capital investment in the project is expected to total approximately $10,800 (SAR 40.5 billion) and has been funded through a combination of equity contributions by the joint venture partners and project financing by the joint venture, which has been guaranteed by both partners (see below). Both the equity contributions and the guarantees of the project financing are based on the joint venture’s partners’ ownership interests. Originally, it was estimated that Alcoa’s total equity investment in the joint venture would be approximately $1,100, of which Alcoa has contributed $982, including $1 in the 2016 six-month period. Based on changes to both the project’s capital investment and equity and debt structure from the initial plans, the estimated $1,100 equity contribution may be reduced. As of June 30, 2016 and December 31, 2015, the carrying value of Alcoa’s investment in this project was $883 and $928, respectively.

The smelting and rolling mill companies have project financing totaling $4,227 (reflects principal repayments made through June 30, 2016), of which $1,061 represents Alcoa’s share (the equivalent of Alcoa’s 25.1% interest in the smelting and rolling mill companies). In conjunction with the financings, Alcoa issued guarantees on behalf of the smelting and rolling mill companies to the lenders in the event that such companies default on their debt service requirements through 2017 and 2020 for the smelting company and 2018 and 2021 for the rolling mill company (Ma’aden issued similar guarantees for its 74.9% interest). Alcoa’s guarantees for the smelting and rolling mill companies cover total debt service requirements of $142 in principal and up to a maximum of approximately $30 in interest per year (based on projected interest rates). At June 30, 2016 and December 31, 2015, the combined fair value of the guarantees was $4 and $7, respectively, which was included in Other noncurrent liabilities and deferred credits on the accompanying Consolidated Balance Sheet.

The mining and refining company has project financing totaling $2,232, of which $560 represents AWAC’s 25.1% interest in the mining and refining company. In conjunction with the financings, Alcoa, on behalf of AWAC, issued guarantees to the lenders in the event that the mining and refining company defaults on its debt service requirements through 2019 and 2024 (Ma’aden issued similar guarantees for its 74.9% interest). Alcoa’s guarantees for the mining and refining company cover total debt service requirements of $120 in principal and up to a maximum of approximately $30 in interest per year (based on projected interest rates). At both June 30, 2016 and December 31, 2015, the combined fair value of the guarantees was $3, which was included in Other noncurrent liabilities and deferred credits on the accompanying Consolidated Balance Sheet. In the event Alcoa would be required to make payments under the guarantees, 40% of such amount would be contributed to Alcoa by Alumina Limited, consistent with its ownership interest in AWAC.

In 2004, AofA acquired a 20% interest in a consortium, which subsequently purchased the Dampier to Bunbury Natural Gas Pipeline (DBNGP) in Western Australia, in exchange for an initial cash investment of $17 (A$24). The investment in the DBNGP, which was classified as an equity investment, was made in order to secure a competitively priced long-term supply of natural gas to AofA’s refineries in Western Australia. AofA made additional contributions of $141 (A$176) for its share of the pipeline capacity expansion and other operational purposes of the consortium through September 2011. In late 2011, the consortium initiated a three-year equity call plan to improve its capitalization structure. This plan required AofA to contribute $39 (A$40), all of which was made through December 2014. Following the completion of the three-year equity call plan in December 2014, the consortium initiated a new equity call plan to further improve its capitalization structure. This plan required AofA to contribute $30 (A$36) through mid-2016, of which $20 (A$27) was made through March 31, 2016, including $3 (A$5) in the 2016 first quarter.

In April 2016, AofA sold its interest in the consortium (see Note G), effectively terminating its remaining obligation to make contributions under the current equity call plan. As part of the sale transaction, AofA will maintain its current access to approximately 30% of the DBNGP transmission capacity for gas supply to its three alumina refineries in Western Australia under an existing agreement to purchase gas transmission services from the DBNGP. At June 30, 2016, AofA has an asset of $275 (A$372) representing prepayments made under the agreement for future gas transmission services.

On April 8, 2015, AofA secured a new 12-year gas supply agreement to power its three alumina refineries in Western Australia beginning in July 2020. This agreement was conditional on the completion of a third-party acquisition of the related energy assets from the then-current owner, which occurred in June 2015. The terms of AofA’s gas supply agreement required a prepayment of $500 to be made in two installments. The first installment of $300 was made at the time of the completion of the third-party acquisition in June 2015 and the second installment of $200 was made in April 2016. Both of these amounts were included in (Increase) in noncurrent assets on the accompanying Statement of Consolidated Cash Flows in the respective periods. At June 30, 2016 and December 31, 2015, Alcoa has an asset of $484 (A$654) and $288 (A$395), respectively, representing the respective prepayments made under this agreement, which were included in Other noncurrent assets on the accompanying Consolidated Balance Sheet.

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Other Income, Net

6 Months Ended

Jun. 30, 2016

Other Income and Expenses [Abstract]

Other Income, Net

J. Other Income, Net

	Second quarter ended June 30,						Six months ended June 30,
	2016			2015			2016			2015
Equity loss	$	15		$	24		$	37		$	44
Interest income		(5	)		(4	)		(9	)		(7	)
Foreign currency (gains) losses, net		(9	)		6			6			(10	)
Net gain from asset sales		(30	)		(28	)		(28	)		(28	)
Net loss on mark-to-market derivative contracts (O)		8			7			9			3
Other, net		(16	)		(5	)		(18	)		(14	)
	$	(37	)	$	—		$	(3	)	$	(12	)

In the 2016 second quarter and six-month period, Net gain from assets sales included a $27 gain related to the sale of an equity interest in a natural gas pipeline in Australia (see Note G). In the 2015 second quarter and six-month period, Net gain from assets sales included a $29 gain related to the sale of land around the Lake Charles, LA anode facility.

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Segment Information

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Segment Information

K. Segment Information – The operating results of Alcoa’s reportable segments were as follows (differences between segment totals and consolidated totals are in Corporate):

	Alumina			Primary Metals			Global Rolled Products			Engineered Products and Solutions		Transportation and Construction Solutions		Total
Second quarter ended June 30, 2016
Sales:
Third-party sales	$	694		$	1,119		$	1,550		$	1,465	$	467	$	5,295
Intersegment sales		300			473			29			—		—		802
Total sales	$	994		$	1,592		$	1,579		$	1,465	$	467	$	6,097
Profit and loss:
Equity loss	$	(7	)	$	—		$	(10	)	$	—	$	—	$	(17	)
Depreciation, depletion, and amortization		66			101			55			62		12		296
Income taxes		40			—			28			87		18		173
After-tax operating income (ATOI)		109			41			68			180		46		444
Second quarter ended June 30, 2015
Sales:
Third-party sales	$	924		$	1,534		$	1,668		$	1,279	$	492	$	5,897
Intersegment sales		431			562			34			—		—		1,027
Total sales	$	1,355		$	2,096		$	1,702		$	1,279	$	492	$	6,924
Profit and loss:
Equity loss	$	(11	)	$	(5	)	$	(7	)	$	—	$	—	$	(23	)
Depreciation, depletion, and amortization		77			109			56			54		11		307
Income taxes		87			6			25			81		17		216
ATOI		215			67			76			165		44		567

	Alumina			Primary Metals			Global Rolled Products			Engineered Products and Solutions		Transportation and Construction Solutions		Total
Six months ended June 30, 2016
Sales:
Third-party sales	$	1,239		$	2,242		$	2,947		$	2,914	$	896	$	10,238
Intersegment sales		592			948			58			—		—		1,598
Total sales	$	1,831		$	3,190		$	3,005		$	2,914	$	896	$	11,836
Profit and loss:
Equity (loss) income	$	(21	)	$	4		$	(21	)	$	—	$	—	$	(38	)
Depreciation, depletion, and amortization		129			203			111			127		23		593
Income taxes		45			(16	)		62			165		32		288
ATOI		117			55			136			342		85		735
Six months ended June 30, 2015
Sales:
Third-party sales	$	1,811		$	3,106		$	3,289		$	2,536	$	963	$	11,705
Intersegment sales		932			1,254			70			—		—		2,256
Total sales	$	2,743		$	4,360		$	3,359		$	2,536	$	963	$	13,961
Profit and loss:
Equity loss	$	(18	)	$	(8	)	$	(16	)	$	—	$	—	$	(42	)
Depreciation, depletion, and amortization		157			218			112			105		21		613
Income taxes		179			63			61			157		31		491
ATOI		436			254			130			321		82		1,223

The following table reconciles total segment ATOI to consolidated net income attributable to Alcoa:

	Second quarter ended June 30,						Six months ended June 30,
	2016			2015			2016			2015
Total segment ATOI	$	444		$	567		$	735		$	1,223
Unallocated amounts (net of tax):
Impact of LIFO		(10	)		36			(6	)		43
Metal price lag		7			(39	)		8			(62	)
Interest expense		(84	)		(80	)		(167	)		(160	)
Noncontrolling interests		(43	)		(67	)		(38	)		(127	)
Corporate expense		(77	)		(65	)		(132	)		(127	)
Restructuring and other charges		(15	)		(159	)		(76	)		(320	)
Other		(87	)		(53	)		(173	)		(135	)
Consolidated net income attributable to Alcoa	$	135		$	140		$	151		$	335

Items required to reconcile total segment ATOI to consolidated net income attributable to Alcoa include: the impact of LIFO inventory accounting; metal price lag; interest expense; noncontrolling interests; corporate expense (general administrative and selling expenses of operating the corporate headquarters and other global administrative facilities, along with depreciation and amortization on corporate-owned assets); restructuring and other charges; and other items, including intersegment profit eliminations, differences between tax rates applicable to the segments and the consolidated effective tax rate, and other nonoperating items such as foreign currency transaction gains/losses and interest income.

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Earnings Per Share

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Earnings Per Share

L. Earnings Per Share – Basic earnings per share (EPS) amounts are computed by dividing earnings, after the deduction of preferred stock dividends declared, by the average number of common shares outstanding. Diluted EPS amounts assume the issuance of common stock for all potentially dilutive share equivalents outstanding.

The information used to compute basic and diluted EPS attributable to Alcoa common shareholders was as follows (shares in millions):

	Second quarter ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Net income attributable to Alcoa	$	135	$	140	$	151	$	335
Less: preferred stock dividends declared		17		17		35		35
Net income available to Alcoa common shareholders – basic		118		123		116		300
Add: interest expense related to convertible notes		2		—		—		—
Add: dividends related to mandatory convertible preferred stock		—		—		—		—
Net income available to Alcoa common shareholders – diluted	$	120	$	123	$	116	$	300
Average shares outstanding – basic		1,315		1,222		1,314		1,222
Effect of dilutive securities:
Stock options		2		4		1		5
Stock and performance awards		11		11		11		11
Convertible notes		28		—		—		—
Mandatory convertible preferred stock		—		—		—		—
Average shares outstanding – diluted		1,356		1,237		1,326		1,238

In all periods presented, 77 million share equivalents related to mandatory convertible preferred stock were not included in the computation of diluted EPS because their effect was anti-dilutive. Additionally, in the 2016 six-month period, 28 million share equivalents related to convertible notes were not included in the computation of diluted EPS because their effect was anti-dilutive

Options to purchase 25 million and 13 million shares of common stock at a weighted average exercise price of $12.73 and $14.78 per share were outstanding as of June 30, 2016 and 2015, respectively, but were not included in the computation of diluted EPS because they were anti-dilutive, as the exercise prices of the options were greater than the average market price of Alcoa’s common stock.

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Receivables

6 Months Ended

Jun. 30, 2016

Transfers and Servicing [Abstract]

Receivables

M. Receivables – Alcoa has an arrangement with three financial institutions to sell certain customer receivables without recourse on a revolving basis. The sale of such receivables is completed through the use of a bankruptcy remote special purpose entity, which is a consolidated subsidiary of Alcoa. This arrangement provides for minimum funding of $200 up to a maximum of $500 for receivables sold. The initial sale of receivables in March 2012 resulted in the setup of a deferred purchase price of $254. Alcoa has received net cash funding of $350 ($1,508 in draws and $1,158 in repayments) since the program’s inception, including $100 ($200 in draws and $100 in repayments) in the 2016 six-month period.

As of June 30, 2016 and December 31, 2015, the deferred purchase price receivable was $197 and $249, respectively, which was included in Other receivables on the accompanying Consolidated Balance Sheet. The deferred purchase price receivable is reduced as collections of the underlying receivables occur; however, as this is a revolving program, the sale of new receivables will result in an increase in the deferred purchase price receivable. The net change in the deferred purchase price receivable was reflected in the (Increase) in receivables line item on the accompanying Statement of Consolidated Cash Flows. This activity is reflected as an operating cash flow because the related customer receivables are the result of an operating activity with an insignificant, short-term interest rate risk.

The gross amount of receivables sold and total cash collected under this program since its inception was $27,521 and $26,974, respectively. Alcoa services the customer receivables for the financial institutions at market rates; therefore, no servicing asset or liability was recorded.

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Pension and Other Postretirement Benefits

6 Months Ended

Jun. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Pension and Other Postretirement Benefits

N. Pension and Other Postretirement Benefits – The components of net periodic benefit cost were as follows:

	Second quarter ended June 30,						Six months ended June 30,
Pension benefits	2016			2015			2016			2015
Service cost	$	41		$	44		$	81		$	88
Interest cost		122			145			244			289
Expected return on plan assets		(186	)		(189	)		(371	)		(377	)
Recognized net actuarial loss		102			117			204			235
Amortization of prior service cost		4			4			8			8
Settlements*		2			—			2			1
Special termination benefits*		—			10			1			12
Net periodic benefit cost	$	85		$	131		$	169		$	256

* Except for Settlements of $2 in both the second quarter and six months ended June 30, 2016, these amounts were recorded in Restructuring and other charges on the accompanying Statement of Consolidated Operations (see Note D).

	Second quarter ended June 30,						Six months ended June 30,
Other postretirement benefits	2016			2015			2016			2015
Service cost	$	4		$	4		$	7		$	7
Interest cost		19			23			37			46
Recognized net actuarial loss		5			5			11			9
Amortization of prior service benefit		(7	)		(10	)		(13	)		(19	)
Curtailments*		—			(1	)		—			(1	)
Special termination benefits*		—			1			—			1
Net periodic benefit cost	$	21		$	22		$	42		$	43

* These amounts were recorded in Restructuring and other charges on the accompanying Statement of Consolidated Operations (see Note D).

In conjunction with the annual measurement of the funded status of Alcoa’s pension and other postretirement benefit plans at December 31, 2015, management elected to change the manner in which the interest cost component of net periodic benefit cost is determined in 2016 and beyond. Previously, the interest cost component was determined by multiplying the single equivalent rate and the aggregate discounted cash flows of the plans’ projected benefit obligations. Under the new methodology, the interest cost component is determined by aggregating the product of the discounted cash flows of the plans’ projected benefit obligations for each year and an individual spot rate (referred to as the “spot rate” approach). In the 2016 second quarter and six-month period, this change resulted in a lower interest cost component of net periodic benefit cost under the new methodology compared to the previous methodology of $24 and $48, respectively, for pension plans and $4 and $8, respectively, for other postretirement benefit plans. Management believes this new methodology, which represents a change in an accounting estimate, is a better measure of the interest cost as each year’s cash flows are specifically linked to the interest rates of bond payments in the same respective year.

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Derivatives and Other Financial Instruments

6 Months Ended

Jun. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Other Financial Instruments

O. Derivatives and Other Financial Instruments

Fair Value

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value hierarchy distinguishes between (i) market participant assumptions developed based on market data obtained from independent sources (observable inputs) and (ii) an entity’s own assumptions about market participant assumptions developed based on the best information available in the circumstances (unobservable inputs). The fair value hierarchy consists of three broad levels, which gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below:

• Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.

• Level 2 - Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly, including quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are observable for the asset or liability (e.g., interest rates); and inputs that are derived principally from or corroborated by observable market data by correlation or other means.

• Level 3 - Inputs that are both significant to the fair value measurement and unobservable.

Derivatives

Alcoa is exposed to certain risks relating to its ongoing business operations, including financial, market, political, and economic risks. The following discussion provides information regarding Alcoa’s exposure to the risks of changing commodity prices, interest rates, and foreign currency exchange rates.

Alcoa’s commodity and derivative activities are subject to the management, direction, and control of the Strategic Risk Management Committee (SRMC), which is composed of the chief executive officer, the chief financial officer, and other officers and employees that the chief executive officer selects. The SRMC meets on a periodic basis to review derivative positions and strategy and reports to Alcoa’s Board of Directors on the scope of its activities.

The aluminum, energy, interest rate, and foreign exchange contracts are held for purposes other than trading. They are used primarily to mitigate uncertainty and volatility, and to cover underlying exposures. Alcoa is not involved in trading activities for energy, weather derivatives, or other nonexchange commodity trading activities.

A number of Alcoa’s aluminum, energy, and foreign exchange contracts are classified as Level 1 and an interest rate contract is classified as Level 2 under the fair value hierarchy. These energy, foreign exchange, and interest rate contracts are not material to Alcoa’s Consolidated Financial Statements for all periods presented.

For the aluminum contracts classified as Level 1, the total fair value of derivatives recorded as assets and liabilities was $6 and $11, respectively, at June 30, 2016 and $8 and $58, respectively, at December 31, 2015. These contracts were entered into to either hedge forecasted sales or purchases of aluminum in order to manage the associated aluminum price risk. Certain of these contracts are designated as hedging instruments, either fair value or cash flow, and the remaining are not designated as such. Combined, Alcoa recognized a net gain of $1 and $3 in the 2016 second quarter and six-month period, respectively, and a net gain of $15 and $41 in the 2015 second quarter and six-month period, respectively, in Sales on the accompanying Statement of Consolidated Operations related to these aluminum contracts.

In addition to the Level 1 and 2 derivative instruments described above, Alcoa has ten derivative instruments classified as Level 3 under the fair value hierarchy. These instruments are composed of eight embedded aluminum derivatives, an energy contract, and an embedded credit derivative, all of which relate to energy supply contracts associated with nine smelters and three refineries. Five of the embedded aluminum derivatives and the energy contract were designated as cash flow hedging instruments and three of the embedded aluminum derivatives and the embedded credit derivative were not designated as hedging instruments.

The following section describes the valuation methodologies used by Alcoa to measure its Level 3 derivative instruments at fair value. Derivative instruments classified as Level 3 in the fair value hierarchy represent those in which management has used at least one significant unobservable input in the valuation model. Alcoa uses a discounted cash flow model to fair value all Level 3 derivative instruments. Where appropriate, the description below includes the key inputs to those models and any significant assumptions. These valuation models are reviewed and tested at least on an annual basis.

Inputs in the valuation models for Level 3 derivative instruments are composed of the following: (i) quoted market prices (e.g., aluminum prices on the 10-year London Metal Exchange (LME) forward curve and energy prices), (ii) significant other observable inputs (e.g., information concerning time premiums and volatilities for certain option type embedded derivatives and regional premiums for aluminum contracts), and (iii) unobservable inputs (e.g., aluminum and energy prices beyond those quoted in the market). For periods beyond the term of quoted market prices for aluminum, Alcoa estimates the price of aluminum by extrapolating the 10-year LME forward curve. Additionally, for periods beyond the term of quoted market prices for energy, management has developed a forward curve based on independent consultant market research. Where appropriate, valuations are adjusted for various factors such as liquidity, bid/offer spreads, and credit considerations. Such adjustments are generally based on available market evidence (Level 2). In the absence of such evidence, management’s best estimate is used (Level 3). If a significant input that is unobservable in one period becomes observable in a subsequent period, the related asset or liability would be transferred to the appropriate classification (Level 1 or 2) in the period of such change (there were no such transfers in the periods presented).

Alcoa has two power contracts, each of which contain an embedded derivative that indexes the price of power to the LME price of aluminum. Additionally, Alcoa has three power contracts, each of which contain an embedded derivative that indexes the price of power to the LME price of aluminum plus the Midwest premium. The embedded derivatives in these five power contracts are primarily valued using observable market prices; however, due to the length of the contracts, the valuation models also require management to estimate the long-term price of aluminum based upon an extrapolation of the 10-year LME forward curve and/or 5-year Midwest premium curve. Significant increases or decreases in the actual LME price beyond 10 years and/or the Midwest premium beyond 5 years would result in a higher or lower fair value measurement. An increase in actual LME price and/or the Midwest premium over the inputs used in the valuation models will result in a higher cost of power and a corresponding decrease to the derivative asset or increase to the derivative liability. The embedded derivatives have been designated as cash flow hedges of forward sales of aluminum. Unrealized gains and losses were included in Other comprehensive (loss) income on the accompanying Consolidated Balance Sheet while realized gains and losses were included in Sales on the accompanying Statement of Consolidated Operations.

Also, Alcoa has a power contract (expires in September 2016 – see below) separate from above that contains an LME-linked embedded derivative. The embedded derivative is valued using the probability and interrelationship of future LME prices, Australian dollar to U.S. dollar exchange rates, and the U.S. consumer price index. Significant increases or decreases in the LME price would result in a higher or lower fair value measurement. An increase in actual LME price over the inputs used in the valuation model will result in a higher cost of power and a corresponding decrease to the derivative asset. This embedded derivative did not qualify for hedge accounting treatment. Unrealized gains and losses from the embedded derivative were included in Other income, net on the accompanying Statement of Consolidated Operations while realized gains and losses were included in Cost of goods sold on the accompanying Statement of Consolidated Operations as electricity purchases were made under the contract. At the time this derivative asset was recognized, an equivalent amount was recognized as a deferred credit in Other noncurrent liabilities and deferred credits on the accompanying Consolidated Balance Sheet. This deferred credit is recognized in Other income, net on the accompanying Statement of Consolidated Operations as power is received over the life of the contract.

Additionally, Alcoa has a natural gas supply contract, which has an LME-linked ceiling. This embedded derivative is valued using probabilities of future LME aluminum prices and the price of Brent crude oil (priced on Platts), including the interrelationships between the two commodities subject to the ceiling. Any change in the interrelationship would result in a higher or lower fair value measurement. An LME ceiling was embedded into the contract price to protect against an increase in the price of oil without a corresponding increase in the price of LME. An increase in oil prices with no similar increase in the LME price would limit the increase of the price paid for natural gas. This embedded derivative did not qualify for hedge accounting treatment. Unrealized gains and losses from the embedded derivative were included in Other income, net on the accompanying Statement of Consolidated Operations while realized gains and losses were included in Cost of goods sold on the accompanying Statement of Consolidated Operations as gas purchases were made under the contract.

In the second quarter of 2016, Alcoa and the related counterparty elected to modify the pricing of an existing power contract for a smelter in the United States. This amendment contains an embedded derivative that now indexes the price of power to the LME price of aluminum plus the Midwest premium. The embedded derivative is valued using the interrelationship of future metal prices (LME base plus Midwest premium) and the amount of megawatt hours of energy needed to produce the forecasted metric tons of aluminum at the smelter. Significant increases or decreases in the metal price would result in a higher or lower fair value measurement. An increase in actual metal price over the inputs used in the valuation model will result in a higher cost of power and a corresponding increase to the derivative liability. Management elected not to qualify the embedded derivative for hedge accounting treatment. Unrealized gains and losses from the embedded derivative will be included in Other income, net on the accompanying Statement of Consolidated Operations while realized gains and losses will be included in Cost of goods sold on the accompanying Statement of Consolidated Operations as electricity purchases are made under the contract. At the time this derivative liability was recognized, an equivalent amount was recognized as a deferred charge in Other noncurrent assets on the accompanying Consolidated Balance Sheet. This deferred charge will be recognized in Other income, net on the accompanying Statement of Consolidated Operations as power is received over the life of the contract.

Furthermore, Alcoa has a power contract, which contains an embedded derivative that indexes the difference between the long-term debt ratings of Alcoa and the counterparty from any of the three major credit rating agencies. Management uses market prices, historical relationships, and forecast services to determine fair value. Significant increases or decreases in any of these inputs would result in a lower or higher fair value measurement. A wider credit spread between Alcoa and the counterparty would result in a higher cost of power and a corresponding increase in the derivative liability. This embedded derivative did not qualify for hedge accounting treatment. Unrealized gains and losses were included in Other income, net on the accompanying Statement of Consolidated Operations while realized gains and losses were included in Cost of goods sold on the accompanying Statement of Consolidated Operations as electricity purchases were made under the contract.

Finally, Alcoa has a derivative contract that will hedge the anticipated power requirements at one of its smelters once the existing power contract expires in September 2016 (see above). Beyond the term where market information is available, management has developed a forward curve, for valuation purposes, based on independent consultant market research. Significant increases or decreases in the power market may result in a higher or lower fair value measurement. Lower prices in the power market would cause a decrease in the derivative asset. The derivative contract has been designated as a cash flow hedge of future purchases of electricity. Unrealized gains and losses on this contract were recorded in Other comprehensive (loss) income on the accompanying Consolidated Balance Sheet. Once the designated hedge period begins in September 2016, realized gains and losses will be recorded in Cost of goods sold as electricity purchases are made under the power contract.

The following table presents quantitative information related to the significant unobservable inputs described above for Level 3 derivative contracts:

	Fair value at June 30, 2016*		Unobservable input	Range ($ in full amounts)
Assets:
Embedded aluminum derivatives	$	718	Price of aluminum beyond forward curve	Aluminum: $2,093 per metric ton in 2026 to $2,245 per metric ton in 2029 (two contracts) and $2,540 per metric ton in 2036 (one contract) Midwest premium: $0.0775 per pound in 2021 to $0.0775 per pound in 2029 (two contracts) and 2036 (one contract)
Embedded aluminum derivative		23	Interrelationship of future aluminum prices, foreign currency exchange rates, and the U.S. consumer price index (CPI)	Aluminum: $1,631 per metric ton in July 2016 to $1,637 per metric ton in September 2016 Foreign currency: A$1 = $0.74 in 2016 (July through September) CPI: 1982 base year of 100 and 236 in 2016 (July through September)
Embedded aluminum derivative		4	Interrelationship of LME price to overall energy price	Aluminum: $1,614 per metric ton in 2016 to $1,755 per metric ton in 2019
Embedded aluminum derivative		—	Interrelationship of future aluminum and oil prices	Aluminum: $1,631 per metric ton in 2016 to $1,710 per metric ton in 2018 Oil: $49 per barrel in 2016 to $55 per barrel in 2018
Energy contract		40	Price of electricity beyond forward curve	Electricity: $48 per megawatt hour in 2019 to $116 per megawatt hour in 2036
Liabilities:
Embedded aluminum derivative		196	Price of aluminum beyond forward curve	Aluminum: $2,093 per metric ton in 2026 to $2,137 per metric ton in 2027
Embedded aluminum derivative		32	Interrelationship of LME price to the amount of megawatt hours of energy needed to produce the forecasted metric tons of aluminum	Aluminum: $1,631 per metric ton in 2016 to $1,729 per metric ton in 2019 Midwest premium: $0.0725 per pound in 2016 to $0.0775 per pound in 2019 Electricity: rate at 2 million megawatt hours per year
Embedded credit derivative		33	Credit spread between Alcoa and counterparty	3.45% to 3.81% (3.63% median)

* The fair value of the energy contract reflected as an asset in this table is lower by $9 compared to the respective amount reflected in the Level 3 tables presented below. This is due to the fact that this contract is in a liability position for the current portion but is in an asset position for the noncurrent portion, and is reflected as such on the accompanying Consolidated Balance Sheet. However, this derivative is reflected as a net asset in the above table for purposes of presenting the assumptions utilized to measure the fair value of the derivative instrument in its entirety.

The fair values of Level 3 derivative instruments recorded as assets and liabilities in the accompanying Consolidated Balance Sheet were as follows:

	June 30, 2016		December 31, 2015
Asset Derivatives
Derivatives designated as hedging instruments:
Prepaid expenses and other current assets:
Embedded aluminum derivatives	$	51	$	72
Other noncurrent assets:
Embedded aluminum derivatives		671		994
Energy contract		49		2
Total derivatives designated as hedging instruments	$	771	$	1,068
Derivatives not designated as hedging instruments:
Prepaid expenses and other current assets:
Embedded aluminum derivatives	$	23	$	69
Total derivatives not designated as hedging instruments	$	23	$	69
Total Asset Derivatives	$	794	$	1,137
Liability Derivatives
Derivatives designated as hedging instruments:
Other current liabilities:
Embedded aluminum derivative	$	14	$	9
Energy contract		9		4
Other noncurrent liabilities and deferred credits:
Embedded aluminum derivative		182		160
Total derivatives designated as hedging instruments	$	205	$	173
Derivatives not designated as hedging instruments:
Other current liabilities:
Embedded aluminum derivative	$	8	$	—
Embedded credit derivative		5		6
Other noncurrent liabilities and deferred credits:
Embedded aluminum derivative		24		—
Embedded credit derivative		28		29
Total derivatives not designated as hedging instruments	$	65	$	35
Total Liability Derivatives	$	270	$	208

The following tables present a reconciliation of activity for Level 3 derivative contracts:

	Assets					Liabilities
Second quarter ended June 30, 2016	Embedded aluminum derivatives			Energy contract		Embedded aluminum derivative			Embedded credit derivative			Energy contract
Opening balance – April 1, 2016	$	988		$	6	$	161		$	33		$	11
Total gains or losses (realized and unrealized) included in:
Sales		(3	)		—		(3	)		—			—
Cost of goods sold		(30	)		—		—			(2	)		—
Other income, net		(4	)		—		—			2			—
Other comprehensive loss		(215	)		37		38			—			(8	)
Purchases, sales, issuances, and settlements*		—			—		32			—			—
Transfers into and/or out of Level 3*		—			—		—			—			—
Other		9			6		—			—			6
Closing balance – June 30, 2016	$	745		$	49	$	228		$	33		$	9
Change in unrealized gains or losses included in earnings for derivative contracts held at June 30, 2016:
Sales	$	—		$	—	$	—		$	—		$	—
Cost of goods sold		—			—		—			—			—
Other income, net		(4	)		—		—			2			—

* In the 2016 second quarter, there was an issuance of a new embedded derivative contained in an amendment to an existing power contract. There were no purchases, sales or settlements of Level 3 derivative instruments. Additionally, there were no transfers of derivative instruments into or out of Level 3.

	Assets					Liabilities
Six months ended June 30, 2016	Embedded aluminum derivatives			Energy contract		Embedded aluminum derivative			Embedded credit derivative			Energy contract
Opening balance – January 1, 2016	$	1,135		$	2	$	169		$	35		$	4
Total gains or losses (realized and unrealized) included in:
Sales		(10	)		—		(5	)		—			—
Cost of goods sold		(61	)		—		—			(3	)		—
Other income, net		(8	)		2		—			1			(1	)
Other comprehensive income		(336	)		39		32			—			—
Purchases, sales, issuances, and settlements*		—			—		32			—			—
Transfers into and/or out of Level 3*		—			—		—			—			—
Other		25			6		—			—			6
Closing balance – June 30, 2016	$	745		$	49	$	228		$	33		$	9
Change in unrealized gains or losses included in earnings for derivative contracts held at June 30, 2016:
Sales	$	—		$	—	$	—		$	—		$	—
Cost of goods sold		—			—		—			—			—
Other income, net		(8	)		2		—			1			(1	)

* In the 2016 six-month period, there was an issuance of a new embedded derivative contained in an amendment to an existing power contract. There were no purchases, sales or settlements of Level 3 derivative instruments. Additionally, there were no transfers of derivative instruments into or out of Level 3.

Derivatives Designated As Hedging Instruments – Cash Flow Hedges

For derivative instruments that are designated and qualify as cash flow hedges, the effective portion of unrealized gains or losses on the derivative is reported as a component of other comprehensive income (OCI). Realized gains or losses on the derivative are reclassified from OCI into earnings in the same period or periods during which the hedged transaction impacts earnings. Gains and losses on the derivative representing either hedge ineffectiveness or hedge components excluded from the assessment of effectiveness are recognized directly in earnings immediately.

Alcoa has five Level 3 embedded aluminum derivatives and one Level 3 energy contract that have been designated as cash flow hedges as follows.

Embedded aluminum derivatives. Alcoa has entered into energy supply contracts that contain pricing provisions related to the LME aluminum price. The LME-linked pricing features are considered embedded derivatives. Five of these embedded derivatives have been designated as cash flow hedges of forward sales of aluminum. At June 30, 2016 and December 31, 2015, these embedded aluminum derivatives hedge forecasted aluminum sales of 3,261 kmt and 3,307 kmt, respectively.

Alcoa recognized a net unrealized loss of $253 and $368 in the 2016 second quarter and six-month period, respectively, and a net unrealized gain of $616 and $518 in the 2015 second quarter and six-month period, respectively, in Other comprehensive (loss) income related to these five derivative instruments. Additionally, Alcoa reclassified a realized gain of less than $1 and $5 in the 2016 second quarter and six-month period, respectively, and a realized loss of $12 and $24 in the 2015 second quarter and six-month period, respectively, from Accumulated other comprehensive loss to Sales. Assuming market rates remain constant with the rates at June 30, 2016, a realized gain of $25 is expected to be recognized in Sales over the next 12 months.

Also, Alcoa recognized a gain of less than $1 in the 2016 six-month period (no such gain was recognized in the 2016 second quarter) and a gain of less than $1 and $1 in the 2015 second quarter and six-month period, respectively, in Other income, net related to the amount excluded from the assessment of hedge effectiveness. There was no ineffectiveness related to these five derivative instruments in the 2016 second quarter and six-month period and the 2015 second quarter and six-month period.

Energy contract. Alcoa has a derivative contract that will hedge the anticipated power requirements at one of its smelters once the existing power contract expires in September 2016. At June 30, 2016 and December 31, 2015, this energy contract hedges forecasted electricity purchases of 59,409,328 megawatt hours. Alcoa recognized an unrealized gain of $45 and $39 in the 2016 second quarter and six-month period, respectively, and an unrealized loss of $17 and $11 in the 2015 second quarter and six-month period, respectively, in Other comprehensive (loss) income. Additionally, Alcoa recognized a gain of $3 in Other income, net related to hedge ineffectiveness in the 2016 six-month period. There was no ineffectiveness related to the energy contract in the 2016 second quarter and the 2015 second quarter and six-month period.

Derivatives Not Designated As Hedging Instruments

Alcoa has three Level 3 embedded aluminum derivatives and one Level 3 embedded credit derivative that do not qualify for hedge accounting treatment. As such, gains and losses related to the changes in fair value of these instruments are recorded directly in earnings. In the second quarter of 2016 and 2015, Alcoa recognized a loss of $6 and $5, respectively, in Other income, net, of which a loss of $4 and $2, respectively, related to the embedded aluminum derivatives and a loss of $2 and $3, respectively, related to the embedded credit derivative. In the six-month period of 2016 and 2015, Alcoa recognized a loss of $9 and $2, respectively, in Other income, net, of which a loss of $8 and $1, respectively, related to the embedded aluminum derivatives and a loss of $1 and $1, respectively, related to the embedded credit derivative.

Material Limitations

The disclosures with respect to commodity prices, interest rates, and foreign currency exchange risk do not take into account the underlying commitments or anticipated transactions. If the underlying items were included in the analysis, the gains or losses on the futures contracts may be offset. Actual results will be determined by a number of factors that are not under Alcoa’s control and could vary significantly from those factors disclosed.

Alcoa is exposed to credit loss in the event of nonperformance by counterparties on the above instruments, as well as credit or performance risk with respect to its hedged customers’ commitments. Although nonperformance is possible, Alcoa does not anticipate nonperformance by any of these parties. Contracts are with creditworthy counterparties and are further supported by cash, treasury bills, or irrevocable letters of credit issued by carefully chosen banks. In addition, various master netting arrangements are in place with counterparties to facilitate settlement of gains and losses on these contracts.

Other Financial Instruments

The carrying values and fair values of Alcoa’s other financial instruments were as follows:

	June 30, 2016				December 31, 2015
	Carrying value		Fair value		Carrying value		Fair value
Cash and cash equivalents	$	1,929	$	1,929	$	1,919	$	1,919
Restricted cash		30		30		37		37
Noncurrent receivables		19		19		17		17
Available-for-sale securities		68		68		193		193
Short-term borrowings		33		33		38		38
Commercial paper		—		—		—		—
Long-term debt due within one year		774		791		21		21
Contingent payment related to an acquisition		132		132		130		130
Long-term debt, less amount due within one year		8,278		8,670		8,993		8,922

The following methods were used to estimate the fair values of other financial instruments:

Cash and cash equivalents, Restricted cash, Short-term borrowings, and Commercial paper. The carrying amounts approximate fair value because of the short maturity of the instruments. The fair value amounts for Cash and cash equivalents, Restricted cash, and Commercial paper were classified in Level 1, and Short-term borrowings were classified in Level 2.

Noncurrent receivables. The fair value of noncurrent receivables was based on anticipated cash flows, which approximates carrying value, and was classified in Level 2 of the fair value hierarchy.

Available-for-sale securities. The fair value of such securities was based on quoted market prices. These financial instruments consist of exchange-traded fixed income and equity securities, which are carried at fair value and were classified in Level 1 of the fair value hierarchy.

Contingent payment related to an acquisition. The fair value was based on the net present value of expected future cash flows and was classified in Level 3 of the fair value hierarchy.

Long-term debt due within one year and Long-term debt, less amount due within one year. The fair value was based on quoted market prices for public debt and on interest rates that are currently available to Alcoa for issuance of debt with similar terms and maturities for non-public debt. The fair value amounts for all Long-term debt were classified in Level 2 of the fair value hierarchy.

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Proposed Separation Transaction

6 Months Ended

Jun. 30, 2016

Text Block [Abstract]

Proposed Separation Transaction

P. Proposed Separation Transaction – On September 28, 2015, Alcoa announced that its Board of Directors preliminarily approved a plan to separate into two standalone, publicly-traded companies. One company will be named Alcoa Corporation and will include the Alumina and Primary Metals segments and the Warrick, IN rolling operations and the equity interest in the rolling mill at the joint venture in Saudi Arabia, both of which are currently part of the Global Rolled Products segment. Alcoa, which will be re-named Arconic Inc., will continue to own the Global Rolled Products (except for the aforementioned rolling operations to be included in the future Alcoa Corporation company), Engineered Products and Solutions, and Transportation and Construction Solutions segments.

Alcoa is targeting to complete the separation in the second half of 2016. The transaction is subject to a number of conditions, including, but not limited to, final approval by Alcoa’s Board of Directors; receipt of a private letter ruling from the Internal Revenue Service regarding certain U.S. federal income tax matters relating to the transaction; receipt of an opinion of legal counsel with respect to the tax-free nature of the transaction for U.S. federal income tax purposes; and the effectiveness of a Form 10 registration statement, which was filed with the U.S. Securities and Exchange Commission on June 29, 2016. Upon completion of the separation, Alcoa shareholders will own all of the outstanding shares of the future Arconic Inc. company, and each Alcoa shareholder as of the separation record date will own a pro rata share of the outstanding shares of the future Alcoa Corporation company to be distributed (up to 19.9% of such shares may be retained by the future Arconic Inc. company). Alcoa may, at any time and for any reason until the proposed transaction is complete, abandon the separation plan or modify or change its terms. In the 2016 second quarter and six-month period, Alcoa recognized $45 ($37 after-tax) and $63 ($54 after-tax), respectively, in Selling, general administrative, and other expenses on the accompanying Statement of Consolidated Operations for costs related to the proposed separation transaction.

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Subsequent Events

6 Months Ended

Jun. 30, 2016

Subsequent Events [Abstract]

Subsequent Events

Q. Subsequent Events – Management evaluated all activity of Alcoa and concluded that no subsequent events have occurred that would require recognition in the Consolidated Financial Statements or disclosure in the Notes to the Consolidated Financial Statements, except as described below.

On July 21, 2016, Alcoa’s Board of Directors authorized both a reverse stock split of the Company’s common stock at a ratio of one-for-three and a proportionate reduction in the number of authorized shares of Alcoa’s common stock from 1.8 billion to 600 million. Alcoa will hold a special shareholder meeting on October 5, 2016 to seek approval of the reverse stock split and authorized share count reduction, both of which require an affirmative vote of a majority of votes cast by the shareholders entitled to vote. Alcoa is not planning to issue fractional shares as a result of the reverse stock split; therefore, cash payments in lieu of such fractional shares would be made to shareholders, as applicable. The reverse stock split would not change the proportionate equity interests or voting rights of holders of Alcoa’s common stock, subject to the treatment of fractional shares. As of July 22, 2016, 1,315,374,511 shares of Alcoa’s common stock were outstanding.

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Accumulated Other Comprehensive Loss (Tables)

6 Months Ended

Jun. 30, 2016

Equity [Abstract]

Summary of Changes in Accumulated Other Comprehensive (Loss) by Component

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

	Alcoa						Noncontrolling Interests
	Second quarter ended June 30,						Second quarter ended June 30,
	2016			2015			2016			2015
Pension and other postretirement benefits (N)
Balance at beginning of period	$	(3,579	)	$	(3,496	)	$	(55	)	$	(62	)
Other comprehensive income (loss):
Unrecognized net actuarial loss and prior service cost/benefit		(5	)		(118	)		1			3
Tax benefit		3			39			—			—
Total Other comprehensive (loss) income before reclassifications, net of tax		(2	)		(79	)		1			3
Amortization of net actuarial loss and prior service cost/benefit(1)		104			115			—			1
Tax (expense) benefit(2)		(37	)		(40	)		1			(1	)
Total amount reclassified from Accumulated other comprehensive loss, net of tax(8)		67			75			1			—
Total Other comprehensive income (loss)		65			(4	)		2			3
Balance at end of period	$	(3,514	)	$	(3,500	)	$	(53	)	$	(59	)
Foreign currency translation
Balance at beginning of period	$	(2,109	)	$	(1,803	)	$	(673	)	$	(601	)
Other comprehensive income(3)		45			197			32			32
Balance at end of period	$	(2,064	)	$	(1,606	)	$	(641	)	$	(569	)
Available-for-sale securities
Balance at beginning of period	$	(4	)	$	2		$	—		$	—
Other comprehensive income (loss)(4)		3			(2	)		—			—
Balance at end of period	$	(1	)	$	—		$	—		$	—
Cash flow hedges (O)
Balance at beginning of period	$	517		$	(294	)	$	(5	)	$	(2	)
Other comprehensive (loss) income:
Net change from periodic revaluations		(225	)		614			18			(5	)
Tax benefit (expense)		66			(190	)		(5	)		1
Total Other comprehensive (loss) income before reclassifications, net of tax		(159	)		424			13			(4	)
Net amount reclassified to earnings:
Aluminum contracts(5)		(1	)		10			—			—
Energy contracts(6)		—			2			—			—
Foreign exchange contracts(5)		—			1			—			—
Interest rate contracts(7)		8			1			5			—
Sub-total		7			14			5			—
Tax expense(2)		(1	)		(4	)		(2	)		—
Total amount reclassified from Accumulated other comprehensive income (loss), net of tax(8)		6			10			3			—
Total Other comprehensive (loss) income		(153	)		434			16			(4	)
Balance at end of period	$	364		$	140		$	11		$	(6	)

	Alcoa						Noncontrolling Interests
	Six months ended June 30,						Six months ended June 30,
	2016			2015			2016			2015
Pension and other postretirement benefits (N)
Balance at beginning of period	$	(3,611	)	$	(3,601	)	$	(56	)	$	(64	)
Other comprehensive income:
Unrecognized net actuarial loss and prior service cost/benefit		(64	)		(76	)		1			3
Tax benefit		26			28			—			—
Total Other comprehensive (loss) income before reclassifications, net of tax		(38	)		(48	)		1			3
Amortization of net actuarial loss and prior service cost/benefit(1)		208			229			2			4
Tax expense(2)		(73	)		(80	)		—			(2	)
Total amount reclassified from Accumulated other comprehensive loss, net of tax(8)		135			149			2			2
Total Other comprehensive income		97			101			3			5
Balance at end of period	$	(3,514	)	$	(3,500	)	$	(53	)	$	(59	)
Foreign currency translation
Balance at beginning of period	$	(2,412	)	$	(846	)	$	(780	)	$	(351	)
Other comprehensive income (loss)(3)		348			(760	)		139			(218	)
Balance at end of period	$	(2,064	)	$	(1,606	)	$	(641	)	$	(569	)
Available-for-sale securities
Balance at beginning of period	$	(5	)	$	—		$	—		$	—
Other comprehensive income(4)		4			—			—			—
Balance at end of period	$	(1	)	$	—		$	—		$	—
Cash flow hedges (O)
Balance at beginning of period	$	597		$	(230	)	$	(3	)	$	(2	)
Other comprehensive (loss) income:
Net change from periodic revaluations		(342	)		504			15			(5	)
Tax benefit (expense)		103			(156	)		(4	)		1
Total Other comprehensive (loss) income before reclassifications, net of tax		(239	)		348			11			(4	)
Net amount reclassified to earnings:
Aluminum contracts(5)		(6	)		23			—			—
Energy contracts(6)		1			4			—			—
Foreign exchange contracts(5)		1			1			—			—
Interest rate contracts(7)		8			1			5			—
Nickel contracts(6)		1			—			—			—
Sub-total		5			29			5			—
Tax benefit (expense)(2)		1			(7	)		(2	)		—
Total amount reclassified from Accumulated other comprehensive loss, net of tax(8)		6			22			3			—
Total Other comprehensive (loss) income		(233	)		370			14			(4	)
Balance at end of period	$	364		$	140		$	11		$	(6	)

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

⁽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⁾  In all periods presented, unrealized and realized gains and losses related to these securities were immaterial. Realized gains and losses were included in Other income, net on the accompanying Statement of Consolidated Operations.

⁽⁵⁾  These amounts were included in Sales on the accompanying Statement of Consolidated Operations.

⁽⁶⁾  These amounts were included in Cost of goods sold on the accompanying Statement of Consolidated Operations.

⁽⁷⁾  For Alcoa, $7 of the amount in both the second quarter ended and six months ended as of June 30, 2016 was included in Other income, net on the accompanying Statement of Consolidated Operations. The remaining amount in both the second quarter ended and six months ended as of June 30, 2016 and the entire amount in both the second quarter ended and six months ended as of June 30, 2015 were included in Interest expense on the accompanying Statement of Consolidated Operations. For Noncontrolling interests, the amount in both the second quarter ended and six months ended as of June 30, 2016 was included in Other income, net on the accompanying Statement of Consolidated Operations.

⁽⁸⁾  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 1 through 7.

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Restructuring and Other Charges (Tables)

6 Months Ended

Jun. 30, 2016

Restructuring and Related Activities [Abstract]

Schedule of Restructuring and Other Charges by Reportable Segments, Pretax

The pretax impact of allocating such charges to segment results would have been as follows:

	Second quarter ended June 30,					Six months ended June 30,
	2016			2015		2016			2015
Alumina	$	(1	)	$	10	$	4		$	17
Primary Metals		10			173		88			198
Global Rolled Products		—			1		2			136
Engineered Products and Solutions		9			8		17			11
Transportation and Construction Solutions		8			1		8			3
Segment total		26			193		119			365
Corporate		(3	)		24		(3	)		29
Total restructuring and other charges	$	23		$	217	$	116		$	394

Activity and Reserve Balances for Restructuring Charges

Activity and reserve balances for restructuring charges were as follows:

	Layoff costs			Other exit costs			Total
Reserve balances at December 31, 2014	$	98		$	34		$	132
2015:
Cash payments		(111	)		(12	)		(123	)
Restructuring charges		299			233			532
Other*		(60	)		(231	)		(291	)
Reserve balances at December 31, 2015		226			24			250
2016:
Cash payments		(107	)		(22	)		(129	)
Restructuring charges		34			41			75
Other*		(31	)		1			(30	)
Reserve balances at June 30, 2016	$	122		$	44		$	166

* Other includes reversals of previously recorded restructuring charges and the effects of foreign currency translation. In the 2016 six-month period, Other for layoff costs also included a reclassification of $1 in pension benefits costs, as this obligation was included in Alcoa’s separate liability for pension benefits obligations (see Note N). Additionally in the 2016 six-month period, Other for other exit costs also included a reclassification of $7 in asset retirement obligations, as this liability was included in Alcoa’s separate reserve for asset retirement obligations. In 2015, Other for layoff costs also included a reclassification of $35 in pension and other postretirement benefits costs, as these obligations were included in Alcoa’s separate liability for pension and other postretirement benefits obligations. Additionally in 2015, Other for other exit costs also included a reclassification of the following restructuring charges: $76 in asset retirement and $86 in environmental obligations, as these liabilities were included in Alcoa’s separate reserves for asset retirement obligations and environmental remediation.

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Inventories (Tables)

6 Months Ended

Jun. 30, 2016

Inventory Disclosure [Abstract]

Schedule of Inventory Components

	June 30, 2016		December 31, 2015
Finished goods	$	827	$	811
Work-in-process		1,344		1,272
Bauxite and alumina		416		445
Purchased raw materials		650		720
Operating supplies		201		194
	$	3,438	$	3,442

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Investments (Tables)

6 Months Ended

Jun. 30, 2016

Investments Schedule [Abstract]

Summary of Unaudited Financial Information for Alcoa's Equity Investments

A summary of unaudited financial information for Alcoa’s equity investments is as follows (amounts represent 100% of investee financial information):

	Second quarter ended June 30,					Six months ended June 30,
	2016		2015			2016		2015
Sales	$	904	$	971		$	1,796	$	1,857
Cost of goods sold		679		862			1,360		1,557
Net income (loss)		14		(45	)		29		(86	)

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Other Income, Net (Tables)

6 Months Ended

Jun. 30, 2016

Other Income and Expenses [Abstract]

Schedule of Other Income, Net

	Second quarter ended June 30,						Six months ended June 30,
	2016			2015			2016			2015
Equity loss	$	15		$	24		$	37		$	44
Interest income		(5	)		(4	)		(9	)		(7	)
Foreign currency (gains) losses, net		(9	)		6			6			(10	)
Net gain from asset sales		(30	)		(28	)		(28	)		(28	)
Net loss on mark-to-market derivative contracts (O)		8			7			9			3
Other, net		(16	)		(5	)		(18	)		(14	)
	$	(37	)	$	—		$	(3	)	$	(12	)

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Segment Information (Tables)

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Schedule of Operating Results of Alcoa's Reportable Segments

The operating results of Alcoa’s reportable segments were as follows (differences between segment totals and consolidated totals are in Corporate):

	Alumina			Primary Metals			Global Rolled Products			Engineered Products and Solutions		Transportation and Construction Solutions		Total
Second quarter ended June 30, 2016
Sales:
Third-party sales	$	694		$	1,119		$	1,550		$	1,465	$	467	$	5,295
Intersegment sales		300			473			29			—		—		802
Total sales	$	994		$	1,592		$	1,579		$	1,465	$	467	$	6,097
Profit and loss:
Equity loss	$	(7	)	$	—		$	(10	)	$	—	$	—	$	(17	)
Depreciation, depletion, and amortization		66			101			55			62		12		296
Income taxes		40			—			28			87		18		173
After-tax operating income (ATOI)		109			41			68			180		46		444
Second quarter ended June 30, 2015
Sales:
Third-party sales	$	924		$	1,534		$	1,668		$	1,279	$	492	$	5,897
Intersegment sales		431			562			34			—		—		1,027
Total sales	$	1,355		$	2,096		$	1,702		$	1,279	$	492	$	6,924
Profit and loss:
Equity loss	$	(11	)	$	(5	)	$	(7	)	$	—	$	—	$	(23	)
Depreciation, depletion, and amortization		77			109			56			54		11		307
Income taxes		87			6			25			81		17		216
ATOI		215			67			76			165		44		567

	Alumina			Primary Metals			Global Rolled Products			Engineered Products and Solutions		Transportation and Construction Solutions		Total
Six months ended June 30, 2016
Sales:
Third-party sales	$	1,239		$	2,242		$	2,947		$	2,914	$	896	$	10,238
Intersegment sales		592			948			58			—		—		1,598
Total sales	$	1,831		$	3,190		$	3,005		$	2,914	$	896	$	11,836
Profit and loss:
Equity (loss) income	$	(21	)	$	4		$	(21	)	$	—	$	—	$	(38	)
Depreciation, depletion, and amortization		129			203			111			127		23		593
Income taxes		45			(16	)		62			165		32		288
ATOI		117			55			136			342		85		735
Six months ended June 30, 2015
Sales:
Third-party sales	$	1,811		$	3,106		$	3,289		$	2,536	$	963	$	11,705
Intersegment sales		932			1,254			70			—		—		2,256
Total sales	$	2,743		$	4,360		$	3,359		$	2,536	$	963	$	13,961
Profit and loss:
Equity loss	$	(18	)	$	(8	)	$	(16	)	$	—	$	—	$	(42	)
Depreciation, depletion, and amortization		157			218			112			105		21		613
Income taxes		179			63			61			157		31		491
ATOI		436			254			130			321		82		1,223

Schedule of Segment ATOI to Consolidated Net Income Attributable to Alcoa

The following table reconciles total segment ATOI to consolidated net income attributable to Alcoa:

	Second quarter ended June 30,						Six months ended June 30,
	2016			2015			2016			2015
Total segment ATOI	$	444		$	567		$	735		$	1,223
Unallocated amounts (net of tax):
Impact of LIFO		(10	)		36			(6	)		43
Metal price lag		7			(39	)		8			(62	)
Interest expense		(84	)		(80	)		(167	)		(160	)
Noncontrolling interests		(43	)		(67	)		(38	)		(127	)
Corporate expense		(77	)		(65	)		(132	)		(127	)
Restructuring and other charges		(15	)		(159	)		(76	)		(320	)
Other		(87	)		(53	)		(173	)		(135	)
Consolidated net income attributable to Alcoa	$	135		$	140		$	151		$	335

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Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Reconciliation of Information Used to Compute Basic and Diluted EPS

The information used to compute basic and diluted EPS attributable to Alcoa common shareholders was as follows (shares in millions):

	Second quarter ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Net income attributable to Alcoa	$	135	$	140	$	151	$	335
Less: preferred stock dividends declared		17		17		35		35
Net income available to Alcoa common shareholders – basic		118		123		116		300
Add: interest expense related to convertible notes		2		—		—		—
Add: dividends related to mandatory convertible preferred stock		—		—		—		—
Net income available to Alcoa common shareholders – diluted	$	120	$	123	$	116	$	300
Average shares outstanding – basic		1,315		1,222		1,314		1,222
Effect of dilutive securities:
Stock options		2		4		1		5
Stock and performance awards		11		11		11		11
Convertible notes		28		—		—		—
Mandatory convertible preferred stock		—		—		—		—
Average shares outstanding – diluted		1,356		1,237		1,326		1,238

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Pension and Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2016

Compensation and Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Cost

The components of net periodic benefit cost were as follows:

	Second quarter ended June 30,						Six months ended June 30,
Pension benefits	2016			2015			2016			2015
Service cost	$	41		$	44		$	81		$	88
Interest cost		122			145			244			289
Expected return on plan assets		(186	)		(189	)		(371	)		(377	)
Recognized net actuarial loss		102			117			204			235
Amortization of prior service cost		4			4			8			8
Settlements*		2			—			2			1
Special termination benefits*		—			10			1			12
Net periodic benefit cost	$	85		$	131		$	169		$	256

* Except for Settlements of $2 in both the second quarter and six months ended June 30, 2016, these amounts were recorded in Restructuring and other charges on the accompanying Statement of Consolidated Operations (see Note D).

	Second quarter ended June 30,						Six months ended June 30,
Other postretirement benefits	2016			2015			2016			2015
Service cost	$	4		$	4		$	7		$	7
Interest cost		19			23			37			46
Recognized net actuarial loss		5			5			11			9
Amortization of prior service benefit		(7	)		(10	)		(13	)		(19	)
Curtailments*		—			(1	)		—			(1	)
Special termination benefits*		—			1			—			1
Net periodic benefit cost	$	21		$	22		$	42		$	43

* These amounts were recorded in Restructuring and other charges on the accompanying Statement of Consolidated Operations (see Note D).

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Derivatives and Other Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Quantitative Information for Level 3 Derivative Contracts

The following table presents quantitative information related to the significant unobservable inputs described above for Level 3 derivative contracts:

	Fair value at June 30, 2016*		Unobservable input	Range ($ in full amounts)
Assets:
Embedded aluminum derivatives	$	718	Price of aluminum beyond forward curve	Aluminum: $2,093 per metric ton in 2026 to $2,245 per metric ton in 2029 (two contracts) and $2,540 per metric ton in 2036 (one contract) Midwest premium: $0.0775 per pound in 2021 to $0.0775 per pound in 2029 (two contracts) and 2036 (one contract)
Embedded aluminum derivative		23	Interrelationship of future aluminum prices, foreign currency exchange rates, and the U.S. consumer price index (CPI)	Aluminum: $1,631 per metric ton in July 2016 to $1,637 per metric ton in September 2016 Foreign currency: A$1 = $0.74 in 2016 (July through September) CPI: 1982 base year of 100 and 236 in 2016 (July through September)
Embedded aluminum derivative		4	Interrelationship of LME price to overall energy price	Aluminum: $1,614 per metric ton in 2016 to $1,755 per metric ton in 2019
Embedded aluminum derivative		—	Interrelationship of future aluminum and oil prices	Aluminum: $1,631 per metric ton in 2016 to $1,710 per metric ton in 2018 Oil: $49 per barrel in 2016 to $55 per barrel in 2018
Energy contract		40	Price of electricity beyond forward curve	Electricity: $48 per megawatt hour in 2019 to $116 per megawatt hour in 2036
Liabilities:
Embedded aluminum derivative		196	Price of aluminum beyond forward curve	Aluminum: $2,093 per metric ton in 2026 to $2,137 per metric ton in 2027
Embedded aluminum derivative		32	Interrelationship of LME price to the amount of megawatt hours of energy needed to produce the forecasted metric tons of aluminum	Aluminum: $1,631 per metric ton in 2016 to $1,729 per metric ton in 2019 Midwest premium: $0.0725 per pound in 2016 to $0.0775 per pound in 2019 Electricity: rate at 2 million megawatt hours per year
Embedded credit derivative		33	Credit spread between Alcoa and counterparty	3.45% to 3.81% (3.63% median)

* The fair value of the energy contract reflected as an asset in this table is lower by $9 compared to the respective amount reflected in the Level 3 tables presented below. This is due to the fact that this contract is in a liability position for the current portion but is in an asset position for the noncurrent portion, and is reflected as such on the accompanying Consolidated Balance Sheet. However, this derivative is reflected as a net asset in the above table for purposes of presenting the assumptions utilized to measure the fair value of the derivative instrument in its entirety.

Schedule of Fair Values of Level 3 Derivative Instruments Recorded as Assets and Liabilities

The fair values of Level 3 derivative instruments recorded as assets and liabilities in the accompanying Consolidated Balance Sheet were as follows:

	June 30, 2016		December 31, 2015
Asset Derivatives
Derivatives designated as hedging instruments:
Prepaid expenses and other current assets:
Embedded aluminum derivatives	$	51	$	72
Other noncurrent assets:
Embedded aluminum derivatives		671		994
Energy contract		49		2
Total derivatives designated as hedging instruments	$	771	$	1,068
Derivatives not designated as hedging instruments:
Prepaid expenses and other current assets:
Embedded aluminum derivatives	$	23	$	69
Total derivatives not designated as hedging instruments	$	23	$	69
Total Asset Derivatives	$	794	$	1,137
Liability Derivatives
Derivatives designated as hedging instruments:
Other current liabilities:
Embedded aluminum derivative	$	14	$	9
Energy contract		9		4
Other noncurrent liabilities and deferred credits:
Embedded aluminum derivative		182		160
Total derivatives designated as hedging instruments	$	205	$	173
Derivatives not designated as hedging instruments:
Other current liabilities:
Embedded aluminum derivative	$	8	$	—
Embedded credit derivative		5		6
Other noncurrent liabilities and deferred credits:
Embedded aluminum derivative		24		—
Embedded credit derivative		28		29
Total derivatives not designated as hedging instruments	$	65	$	35
Total Liability Derivatives	$	270	$	208

Schedule of Reconciliation of Activity for Derivative Contracts

The following tables present a reconciliation of activity for Level 3 derivative contracts:

	Assets					Liabilities
Second quarter ended June 30, 2016	Embedded aluminum derivatives			Energy contract		Embedded aluminum derivative			Embedded credit derivative			Energy contract
Opening balance – April 1, 2016	$	988		$	6	$	161		$	33		$	11
Total gains or losses (realized and unrealized) included in:
Sales		(3	)		—		(3	)		—			—
Cost of goods sold		(30	)		—		—			(2	)		—
Other income, net		(4	)		—		—			2			—
Other comprehensive loss		(215	)		37		38			—			(8	)
Purchases, sales, issuances, and settlements*		—			—		32			—			—
Transfers into and/or out of Level 3*		—			—		—			—			—
Other		9			6		—			—			6
Closing balance – June 30, 2016	$	745		$	49	$	228		$	33		$	9
Change in unrealized gains or losses included in earnings for derivative contracts held at June 30, 2016:
Sales	$	—		$	—	$	—		$	—		$	—
Cost of goods sold		—			—		—			—			—
Other income, net		(4	)		—		—			2			—

* In the 2016 second quarter, there was an issuance of a new embedded derivative contained in an amendment to an existing power contract. There were no purchases, sales or settlements of Level 3 derivative instruments. Additionally, there were no transfers of derivative instruments into or out of Level 3.

Schedule of Carrying Values and Fair Values of Other Financial Instruments

The carrying values and fair values of Alcoa’s other financial instruments were as follows:

	June 30, 2016				December 31, 2015
	Carrying value		Fair value		Carrying value		Fair value
Cash and cash equivalents	$	1,929	$	1,929	$	1,919	$	1,919
Restricted cash		30		30		37		37
Noncurrent receivables		19		19		17		17
Available-for-sale securities		68		68		193		193
Short-term borrowings		33		33		38		38
Commercial paper		—		—		—		—
Long-term debt due within one year		774		791		21		21
Contingent payment related to an acquisition		132		132		130		130
Long-term debt, less amount due within one year		8,278		8,670		8,993		8,922

XML

Recently Adopted and Recently Issued Accounting Guidance - Additional Information (Detail) $ in Millions	Jan. 01, 2016 USD ($)
Accounting Changes and Error Corrections [Abstract]
Change due to recent accounting guidance	$ 51

XML

Accumulated Other Comprehensive Loss - Summary of Changes in Accumulated Other Comprehensive (Loss) Income by Component (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Pension and other postretirement benefits
Total Other comprehensive income	$ 67	$ (1)	$ 100	$ 106
Foreign currency translation
Other comprehensive income	77	229	487	(978)
Available-for-sale securities
Other comprehensive income	3	(2)	4
Cash flow hedges
Total Other comprehensive (loss) income	(137)	430	(219)	366
Energy Contracts [Member]
Cash flow hedges
Total Other comprehensive (loss) income before reclassifications, net of tax	45	(17)	39	(11)
Alcoa [Member]
Pension and other postretirement benefits
Balance at beginning of period	(3,579)	(3,496)	(3,611)	(3,601)
Unrecognized net actuarial loss and prior service cost/benefit	(5)	(118)	(64)	(76)
Tax benefit	3	39	26	28
Total Other comprehensive (loss) income before reclassifications, net of tax	(2)	(79)	(38)	(48)
Amortization of net actuarial loss and prior service cost/benefit	104	115	208	229
Tax (expense) benefit	(37)	(40)	(73)	(80)
Total amount reclassified from Accumulated other comprehensive loss, net of tax	67	75	135	149
Total Other comprehensive income	65	(4)	97	101
Balance at end of period	(3,514)	(3,500)	(3,514)	(3,500)
Foreign currency translation
Balance at beginning of period	(2,109)	(1,803)	(2,412)	(846)
Other comprehensive income	45	197	348	(760)
Balance at end of period	(2,064)	(1,606)	(2,064)	(1,606)
Available-for-sale securities
Balance at beginning of period	(4)	2	(5)
Other comprehensive income	3	(2)	4
Balance at end of period	(1)		(1)
Cash flow hedges
Balance at beginning of period	517	(294)	597	(230)
Net change from periodic revaluations	(225)	614	(342)	504
Tax benefit (expense)	66	(190)	103	(156)
Total Other comprehensive (loss) income before reclassifications, net of tax	(159)	424	(239)	348
Net amount reclassified to earnings	7	14	(5)	29
Tax benefit (expense)	(1)	(4)	1	(7)
Total amount reclassified from Accumulated other comprehensive income (loss), net of tax	6	10	6	22
Total Other comprehensive (loss) income	(153)	434	(233)	370
Balance at end of period	364	140	364	140
Alcoa [Member] | Aluminum Contracts [Member]
Cash flow hedges
Net amount reclassified to earnings	(1)	10	(6)	23
Alcoa [Member] | Energy Contracts [Member]
Cash flow hedges
Net amount reclassified to earnings		2	1	4
Alcoa [Member] | Foreign Exchange Contracts [Member]
Cash flow hedges
Net amount reclassified to earnings		1	1	1
Alcoa [Member] | Interest Rate Contracts [Member]
Cash flow hedges
Net amount reclassified to earnings	8	1	8	1
Alcoa [Member] | Nickel Contracts [Member]
Cash flow hedges
Net amount reclassified to earnings			1
Noncontrolling Interests [Member]
Pension and other postretirement benefits
Balance at beginning of period	(55)	(62)	(56)	(64)
Unrecognized net actuarial loss and prior service cost/benefit	1	3	1	3
Total Other comprehensive (loss) income before reclassifications, net of tax	1	3	1	3
Amortization of net actuarial loss and prior service cost/benefit		1	2	4
Tax (expense) benefit	1	(1)		(2)
Total amount reclassified from Accumulated other comprehensive loss, net of tax	1		2	2
Total Other comprehensive income	2	3	3	5
Balance at end of period	(53)	(59)	(53)	(59)
Foreign currency translation
Balance at beginning of period	(673)	(601)	(780)	(351)
Other comprehensive income	32	32	139	(218)
Balance at end of period	(641)	(569)	(641)	(569)
Cash flow hedges
Balance at beginning of period	(5)	(2)	(3)	(2)
Net change from periodic revaluations	18	(5)	15	(5)
Tax benefit (expense)	(5)	1	(4)	1
Total Other comprehensive (loss) income before reclassifications, net of tax	13	(4)	11	(4)
Net amount reclassified to earnings	5		5
Tax benefit (expense)	(2)		(2)
Total amount reclassified from Accumulated other comprehensive income (loss), net of tax	3		3
Total Other comprehensive (loss) income	16	(4)	14	(4)
Balance at end of period	11	$ (6)	11	$ (6)
Noncontrolling Interests [Member] | Interest Rate Contracts [Member]
Cash flow hedges
Net amount reclassified to earnings	$ 5		$ 5

XML

Accumulated Other Comprehensive Loss - Summary of Changes in Accumulated Other Comprehensive (Loss) Income by Component (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2016
Interest Rate Contracts [Member] | Other Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net amount reclassified to earnings	$ 7	$ 7

XML

Restructuring and Other Charges - Additional Information (Detail)		3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016 Employees	Jun. 30, 2016 USD ($) Employees	Jun. 30, 2015 USD ($) Employees t	Jun. 30, 2016 USD ($) Employees	Jun. 30, 2015 USD ($) Employees	Dec. 31, 2015 USD ($) Employees
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		$ 23,000,000	$ 217,000,000	$ 116,000,000	$ 394,000,000
Restructuring and other charges after tax and noncontrolling interest		16,000,000	141,000,000	77,000,000	299,000,000
Other costs				30,000,000		$ 291,000,000
Inventory write down					4,000,000
Inventory write down after tax and noncontrolling interests					2,000,000
Minimum amount of cash payments expected to be paid beyond the end of the current annual period				25,000,000
Maximum amount of cash payments expected to be paid beyond the end of the current annual period				30,000,000
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		(3,000,000)	$ 24,000,000	(3,000,000)	29,000,000
Warrick Smelter, Wenatchee Smelter and Point Comfort [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		8,000,000		86,000,000
Restructuring and other charges after tax and noncontrolling interest		6,000,000		56,000,000
Warrick, IN Smelter [Member]
Restructuring Cost and Reserve [Line Items]
Other costs		9,000,000		36,000,000
Inventory write down		2,000,000		5,000,000
Inventory write down after tax and noncontrolling interests		1,000,000		3,000,000
Other related costs		1,000,000		$ 2,000,000
Suriname [Member]
Restructuring Cost and Reserve [Line Items]
Capacity of lines under review | t			443,000
Suriname [Member] | Alumina [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions | Employees			120
Rolling Mill in Russia [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges					179,000,000
Restructuring and other charges after tax and noncontrolling interest					115,000,000
Sao Luis Smelter [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges					38,000,000
Restructuring and other charges after tax and noncontrolling interest					$ 23,000,000
Number of positions | Employees					800
Sao Luis Smelter [Member] | Primary Metals [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions | Employees					680
Sao Luis Smelter [Member] | Alumina [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions | Employees					120
Pocos de Caldas Smelter [Member]
Restructuring Cost and Reserve [Line Items]
Capacity closure | t			96,000
Point Henry Smelter [Member]
Restructuring Cost and Reserve [Line Items]
Percentage of power supply				40.00%
Asset Retirement Obligation Costs [Member] | Warrick, IN Smelter [Member]
Restructuring Cost and Reserve [Line Items]
Other costs				$ 7,000,000
Restructuring And Related Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		15,000,000
Restructuring and other charges after tax and noncontrolling interest		11,000,000
Other Miscellaneous Items [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		8,000,000	$ 5,000,000	8,000,000	$ 3,000,000
Restructuring and other charges after tax and noncontrolling interest		4,000,000	3,000,000	4,000,000	2,000,000
Other Adjustments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		8,000,000	1,000,000	12,000,000	8,000,000
Restructuring and other charges after tax and noncontrolling interest		$ 5,000,000	1,000,000	8,000,000	7,000,000
Restructuring Programs Layoffs 2015 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges				34,000,000
Restructuring and other charges after tax and noncontrolling interest				$ 25,000,000
Number of positions | Employees	5,000	540		1,100		5,200
Approximate number of employees already laid off | Employees	3,800	3,800		3,800
Cash payments made against the layoff reserves		$ 30,000,000		$ 92,000,000
Restructuring Programs Layoffs 2015 [Member] | Engineered Products and Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions | Employees		300		800
Restructuring Programs Layoffs 2015 [Member] | Transportation and Construction Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions | Employees		240		240
Restructuring Programs Layoffs 2015 [Member] | Primary Metals [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions | Employees				30
Asset Impairment and Accelerated Depreciation [Member] | Warrick, IN Smelter [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges				$ 70,000,000
Severance costs		$ 1,000,000		20,000,000
Other costs		9,000,000		36,000,000
Contract Termination [Member] | Warrick, IN Smelter [Member]
Restructuring Cost and Reserve [Line Items]
Other costs		$ 10,000,000		27,000,000
Other Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges			179,000,000		82,000,000
Restructuring and other charges after tax and noncontrolling interest			115,000,000
Other costs				$ (1,000,000)		$ 231,000,000
Restructuring Programs Layoffs 2014 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges			16,000,000		29,000,000
Restructuring and other charges after tax and noncontrolling interest			$ 13,000,000		$ 21,000,000
Number of positions | Employees	2,700		390		600	2,870
Capacity of lines under review | t			74,000
Approximate number of employees already laid off | Employees	2,600	2,600		2,600
Cash payments made against the layoff reserves		$ 1,000,000		$ 3,000,000
Restructuring Programs Layoffs 2014 [Member] | Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions | Employees					50
Restructuring Programs Layoffs 2014 [Member] | Engineered Products and Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions | Employees			210		290
Restructuring Programs Layoffs 2014 [Member] | Transportation and Construction Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions | Employees					50
Restructuring Programs Layoffs 2014 [Member] | Primary Metals [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions | Employees			150		150
Restructuring Programs Layoffs 2014 [Member] | Global Rolled Products [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions | Employees			30		60
Restructuring Programs Layoffs 2014 [Member] | Suriname [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges			$ 18,000,000
Restructuring and other charges after tax and noncontrolling interest			10,000,000
Post Closing Adjustments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges			10,000,000
Restructuring and other charges after tax and noncontrolling interest			$ 7,000,000
Divested Businesses [Member] | Global Rolled Products [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges					$ 159,000,000
Restructuring and other charges after tax and noncontrolling interest					149,000,000
Shutdown and Curtailment Actions [Member]
Restructuring Cost and Reserve [Line Items]
Asset impairment charges					$ 86,000,000
Number of employees associated with layoff costs | Employees					100
Layoff Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges					$ 11,000,000
Other costs				31,000,000		$ 60,000,000
Asset Retirement Obligations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges				$ 7,000,000	45,000,000	76,000,000
Environmental Remediation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges					29,000,000	$ 86,000,000
Supplier and Customer Contract [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges					$ 8,000,000
Restructuring Programs Layoffs 2016 [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions | Employees	1,100
Approximate number of employees already laid off | Employees	730	730		730
Cash payments made against the layoff reserves		$ 9,000,000		$ 11,000,000

XML

Restructuring and Other Charges - Schedule of Restructuring and Other Charges by Reportable Segments, Pretax (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ 23	$ 217	$ 116	$ 394
Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	26	193	119	365
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	(3)	24	(3)	29
Alumina [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	(1)	10	4	17
Primary Metals [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	10	173	88	198
Global Rolled Products [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges		1	2	136
Engineered Products and Solutions [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	9	8	17	11
Transportation and Construction Solutions [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ 8	$ 1	$ 8	$ 3

XML

Restructuring and Other Charges - Activity and Reserve Balances for Restructuring Charges (Detail) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring reserve beginning balance	$ 250	$ 132
Cash payments	(129)	(123)
Restructuring charges	75	532
Other	(30)	(291)
Restructuring reserve ending balance	166	250
Layoff Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve beginning balance	226	98
Cash payments	(107)	(111)
Restructuring charges	34	299
Other	(31)	(60)
Restructuring reserve ending balance	122	226
Other Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve beginning balance	24	34
Cash payments	(22)	(12)
Restructuring charges	41	233
Other	1	(231)
Restructuring reserve ending balance	$ 44	$ 24

XML

Restructuring and Other Charges - Activity and Reserve Balances for Restructuring Charges (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Other layoff cost including reclassification in pension cost			$ 30		$ 291
Restructuring and other charges	$ 23	$ 217	116	$ 394
Pension And Other Postretirement Benefits Costs Charged To Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Other layoff cost including reclassification in pension cost					35
Asset Retirement Obligations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges			7	45	76
Environmental Remediation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges				$ 29	$ 86
Pension Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Other layoff cost including reclassification in pension cost			1
Restructuring and other charges	$ 2		$ 2

XML

Acquisitions and Divestitures - 2015 Acquisitions - Additional Information (Detail) € in Millions			1 Months Ended		3 Months Ended			4 Months Ended	6 Months Ended		12 Months Ended
	Jul. 29, 2016 HydroelectricPowerDevelopments	Apr. 30, 2016 USD ($)	Mar. 31, 2015 USD ($) Employees	Mar. 31, 2015 EUR (€) Employees	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Jun. 30, 2015 USD ($)	Apr. 29, 2016 USD ($) Employees	Jun. 30, 2016 USD ($) Employees	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	Jul. 31, 2015 USD ($)	Mar. 31, 2015 EUR (€)
Business Acquisition [Line Items]
Gain from sale of Remmele Medical business		$ 0
Sale generated in last annual period prior to divestiture					$ 5,295,000,000		$ 5,897,000,000		$ 10,242,000,000	$ 11,716,000,000
Number of employees | Employees									35
Sale generated by Yadkin											$ 20,000,000
Carrying value of net assets to be sold					128,000,000				$ 128,000,000		127,000,000
Goodwill					5,396,000,000				5,396,000,000		$ 5,401,000,000
Income tax expense					152,000,000		$ 75,000,000		182,000,000	$ 301,000,000
Subsequent Event [Member]
Business Acquisition [Line Items]
No of hydroelectric power developments held by Yadkin | HydroelectricPowerDevelopments	4
Goodwill [Member]
Business Acquisition [Line Items]
Increase (decrease) intangible assets		(44,000,000)
LISI MEDICAL [Member]
Business Acquisition [Line Items]
Cash received on sale of operations		102,000,000
Sale of Remmele Medical business, net of transaction costs		$ 99,000,000
TITAL [Member]
Business Acquisition [Line Items]
Number of employees | Employees			650	650
Cash paid for business acquisition			$ 204,000,000	€ 188
Business acquisition transaction cost			1,000,000										€ 1
Goodwill			$ 118,000,000		117,000,000				117,000,000
Income tax expense									0
Other intangible assets					$ 0				0
TITAL [Member] | Goodwill [Member]
Business Acquisition [Line Items]
Increase (decrease) intangible assets						$ 1,000,000
RTI [Member]
Business Acquisition [Line Items]
Sale generated in last annual period prior to divestiture								$ 20,000,000
Number of employees | Employees								330
Goodwill												$ 240,000,000
Common stock conversion transaction value												870,000,000
Total assets												1,752,000,000
Intangibles												73,000,000
Total liabilities												822,000,000
Additional capital												$ 60,000,000
Decrease in properties, plants, and equipment									110,000,000
Decrease in inventories									48,000,000
RTI [Member] | Goodwill [Member]
Business Acquisition [Line Items]
Increase (decrease) intangible assets									54,000,000
RTI [Member] | Intangible Assets [Member]
Business Acquisition [Line Items]
Increase (decrease) intangible assets									$ 33,000,000

XML

Inventories - Schedule of Inventory Components (Detail) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Finished goods	$ 827	$ 811
Work-in-process	1,344	1,272
Bauxite and alumina	416	445
Purchased raw materials	650	720
Operating supplies	201	194
Inventories, total	$ 3,438	$ 3,442

XML

Inventories - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Inventories valued on a LIFO basis	$ 1,335	$ 1,373
Total inventories valued on an average-cost basis	$ 567	$ 559

XML

Investments - Summary of Unaudited Financial Information for Alcoa's Equity Investments (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Investments Schedule [Abstract]
Sales	$ 904	$ 971	$ 1,796	$ 1,857
Cost of goods sold	679	862	1,360	1,557
Net income (loss)	$ 14	$ (45)	$ 29	$ (86)

XML

Investments - Additional Information (Detail) AUD in Millions, $ in Millions	1 Months Ended		3 Months Ended		6 Months Ended			12 Months Ended
	Apr. 30, 2016 USD ($) Refinery	Apr. 30, 2016 AUD Refinery	Jun. 30, 2016 USD ($)	Jun. 30, 2016 AUD	Jun. 30, 2016 USD ($)	Jun. 30, 2016 AUD	Jun. 30, 2015 USD ($)	Dec. 31, 2004	Dec. 31, 2015 USD ($)
Schedule of Equity Method Investments [Line Items]
Gain after tax and noncontrolling interest			$ 11	AUD 15	$ 27	AUD 35
Number of alumina refineries to be powered under supplied agreement | Refinery	3	3
Sales of investments					275		$ 22
Carrying value of available-for-sale-securities			128		$ 128				$ 127
Alcoa Joint Venture [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest in joint venture	60.00%	60.00%			25.10%	25.10%
Alumina Limited of Australia [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest in joint venture	40.00%	40.00%
AofA [Member] | Dampier to Bunbury Natural Gas Pipeline [Member]
Schedule of Equity Method Investments [Line Items]
Investment percentage in DBP to be sold	20.00%	20.00%
Amount to be received by sale of investment percentage in DBP	$ 145	AUD 192
Percentage of access to be maintained in DBNGP transmission capacity for gas supply	30.00%	30.00%						20.00%
Exchange Traded Fixed Income and Equity Securities [Member]
Schedule of Equity Method Investments [Line Items]
Sales of investments					$ 130
Loss on sale of investment					3
Loss on sale of investment, after tax					2
Carrying value of available-for-sale-securities			$ 68		$ 68				$ 193

XML

Other Noncurrent Assets - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Other Non Current Assets [Abstract]
Proceeds from sale of company-owned life insurance policies	$ 223,000,000	$ 234,000,000
Gain or loss recognized on sale of company-owned life insurance policies			$ 0
Cash surrender value of life insurance	$ 26,000,000		$ 26,000,000	$ 492,000,000

XML

Contingencies and Commitments - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2015 EUR (€)	Feb. 21, 2013 USD ($)	Feb. 21, 2013 EUR (€)	Mar. 26, 2012 USD ($)	Mar. 26, 2012 EUR (€)
Loss Contingencies [Line Items]
Management estimate for maximum exposure from class action					$ 110,000,000	€ 85,000,000
Partial reserve	$ 37,000,000	€ 34,000,000
Alcoa Trasformazioni [Member]
Loss Contingencies [Line Items]
Management estimate for maximum exposure from class action			$ 97,000,000	€ 76,000,000
Minimum [Member]
Loss Contingencies [Line Items]
Provision for contract losses			0
Maximum [Member]
Loss Contingencies [Line Items]
Provision for contract losses			$ 97,000,000	€ 76,000,000

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Contingencies and Commitments - Additional Information - 1 (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	6 Months Ended
	Sep. 30, 2015	Jun. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Loss Contingencies [Line Items]
Number of cleanup locations			More than 100
Remediation reserve balance		$ 606	$ 606	$ 604
Remediation reserve balance, classified as a current liability		49	49	50
Increase in remediation reserve	$ 1	6	13
Payments related to remediation expenses applied against the reserve		14	25
Increase (Decrease) in reserves due to effects of foreign currency translation		6	11
Increase (Decrease) in reserves due to effects of Acquisition			$ 3
Actual remediation fieldwork period			4 years
Guarantee debt service expiration year			2019
Minimum [Member]
Loss Contingencies [Line Items]
Majority of the project funding period			2017
Maximum [Member]
Loss Contingencies [Line Items]
Majority of the project funding period			2021
Massena West, NY [Member]
Loss Contingencies [Line Items]
Remediation reserve balance		232	$ 232	234
Sherwin, TX site [Member]
Loss Contingencies [Line Items]
Remediation reserve balance		30	30	30
Expected portion of funding through 2019		15	15
East St. Louis, IL Site [Member]
Loss Contingencies [Line Items]
Remediation reserve balance		$ 6	$ 6	$ 8
Recurring Costs of Managing Hazardous Substances and Environmental Programs [Member]
Loss Contingencies [Line Items]
Percentage of cost of goods sold			2.00%

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Contingencies and Commitments - Additional Information - 2 (Detail) € in Millions, BRL in Millions, AUD in Millions, SAR in Billions						1 Months Ended								3 Months Ended			6 Months Ended			12 Months Ended							36 Months Ended	93 Months Ended
	Apr. 08, 2015 USD ($) Installment Refinery	Feb. 27, 2014 USD ($)	Feb. 27, 2014 EUR (€)	Apr. 08, 2013 USD ($)	Apr. 08, 2013 BRL	Apr. 30, 2016 Refinery	Mar. 31, 2016 USD ($)	Sep. 30, 2015 USD ($)	Jan. 31, 2014	Oct. 31, 2013 USD ($)	Mar. 31, 2013 USD ($)	May 31, 2012 USD ($)	May 31, 2012 BRL	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Mar. 31, 2016 AUD	Jun. 30, 2016 USD ($)	Jun. 30, 2016 SAR	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2014 AUD	Dec. 31, 2012 USD ($)	Dec. 31, 2009 USD ($)	Dec. 31, 2004 USD ($)	Dec. 31, 2004 AUD	Dec. 31, 2002 t	Sep. 30, 2011 USD ($)	Sep. 30, 2011 AUD	Jun. 30, 2016 EUR (€)	Jun. 30, 2016 BRL	Jun. 30, 2016 AUD	Dec. 31, 2015 AUD	Apr. 08, 2013 BRL	Mar. 31, 2013 BRL
Loss Contingencies [Line Items]
Increase in remediation reserve								$ 1,000,000						$ 6,000,000			$ 13,000,000
Revised project cost submitted to reflect the removal of a larger volume of contaminated soil							$ 7,000,000
Total combined assessments														269,000,000			269,000,000													€ 243
Number of alumina refineries to be powered under supplied agreement | Refinery						3
State and Local Jurisdiction [Member]
Loss Contingencies [Line Items]
Total combined assessments														43,000,000			43,000,000														BRL 139
Maaden Alcoa Joint Venture [Member]
Loss Contingencies [Line Items]
Required plan contributions																	10,800,000,000	SAR 40.5
Capital investment																	1,000,000
Equity investments														883,000,000			883,000,000			$ 928,000,000
Maaden Alcoa Joint Venture [Member] | Alcoa [Member]
Loss Contingencies [Line Items]
Required plan contributions																	1,100,000,000
Capital investment																	$ 982,000,000
Ma'aden Joint Venture [Member]
Loss Contingencies [Line Items]
Ownership interest in joint venture																	74.90%	74.90%
Alcoa Joint Venture [Member]
Loss Contingencies [Line Items]
Ownership interest in joint venture						60.00%											25.10%	25.10%
Project financing Investment														1,061			$ 1,061
Maaden Alcoa Joint Venture Smelter And Rolling Mill Companies [Member]
Loss Contingencies [Line Items]
Project financing Investment														4,227,000,000			4,227,000,000
Maaden Alcoa Joint Venture Smelter And Rolling Mill Companies [Member] | Other Noncurrent Liabilities and Deferred Credits [Member]
Loss Contingencies [Line Items]
Guarantee issued on behalf of smelting and rolling mill companies														4,000,000			4,000,000			7,000,000
Maaden Alcoa Joint Venture Smelter And Rolling Mill Companies [Member] | Financial Guarantee [Member]
Loss Contingencies [Line Items]
Debt service requirements, principal																	142,000,000
Debt service requirements, interest maximum																	30,000,000
Maaden Alcoa Joint Venture Smelter And Rolling Mill Companies [Member] | Alcoa [Member]
Loss Contingencies [Line Items]
Project financing Investment														142,000,000			142,000,000
Maaden Alcoa Joint Venture Mine And Refinery Company [Member] | Other Noncurrent Liabilities and Deferred Credits [Member]
Loss Contingencies [Line Items]
Guarantee issued on behalf of smelting and rolling mill companies														3,000,000			3,000,000			$ 3,000,000
Maaden Alcoa Joint Venture Mine And Refinery Company [Member] | Financial Guarantee [Member]
Loss Contingencies [Line Items]
Debt service requirements, principal																	120,000,000
Debt service requirements, interest maximum																	30,000,000
Maaden Alcoa Joint Venture Mine And Refinery Company [Member] | AWAC [Member]
Loss Contingencies [Line Items]
Project financing Investment														560,000,000			560,000,000
Maaden Alcoa Joint Venture Mine And Refinery Company [Member] | Alcoa [Member]
Loss Contingencies [Line Items]
Project financing Investment														2,232,000,000			$ 2,232,000,000
Alumina Limited [Member]
Loss Contingencies [Line Items]
Percentage of amount required to be contributed in the event Alcoa would be required to make payments under the guarantees																	40.00%	40.00%
Ligestra [Member]
Loss Contingencies [Line Items]
Costs and payments		$ 17,000,000	€ 12
Costs and payments related to damages		9,000,000	6
Payment period																	10 years	10 years
Ligestra [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Percentage of payments and remediation costs									50.00%
Ligestra [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Percentage of payments and remediation costs									80.00%
Italian Ministry of Environment and Protection of Land and Sea[Member]
Loss Contingencies [Line Items]
Soil remediation project, estimated cost		33,000,000	24
Payments for emergency action and natural resource damages		$ 25,000,000	€ 18
Alcoa World Alumina Brasil [Member]
Loss Contingencies [Line Items]
Disallowed tax credits											$ 110,000,000																								BRL 220
Percentage of penalty of the gross disallowed amount				50.00%	50.00%						50.00%
Value added tax receivable												$ 41,000,000	BRL 82
Estimated range of reasonably possible loss, minimum | BRL					BRL 103
Alcoa World Alumina Brasil [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Estimated range of reasonably possible loss, minimum				$ 0
Alcoa World Alumina Brasil [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Estimated range of reasonably possible loss, minimum				32,000,000
Alcoa World Alumina Brasil [Member] | Fixed Assets [Member]
Loss Contingencies [Line Items]
Disallowed tax credits | BRL																																		BRL 117
Alcoa World Alumina Brasil [Member] | Fixed Assets [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Disallowed tax credits				0
Alcoa World Alumina Brasil [Member] | Fixed Assets [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Disallowed tax credits				$ 36,000,000
Alcoa Aluminio [Member]
Loss Contingencies [Line Items]
Metal sold per month | t																											2,000
Majority-Owned Subsidiary | AofA [Member] | Service Agreements [Member]
Loss Contingencies [Line Items]
Gas supply agreement period																				12 years
Number of alumina refineries to be powered under supplied agreement | Refinery	3
Number of installments | Installment	2
Gas supply agreement prepayment amount	$ 500,000,000
Majority-Owned Subsidiary | AofA [Member] | Service Agreements [Member] | First Installment [Member]
Loss Contingencies [Line Items]
Gas supply agreement prepayment amount	300,000,000
Asset included in other noncurrent assets														484,000,000			$ 484,000,000			$ 288,000,000												AUD 654	AUD 395
Majority-Owned Subsidiary | AofA [Member] | Service Agreements [Member] | Second Installment [Member]
Loss Contingencies [Line Items]
Gas supply agreement prepayment amount	$ 200,000,000
Fusina [Member]
Loss Contingencies [Line Items]
Increase in remediation reserve										$ 0														$ 12,000,000
Portovesme [Member]
Loss Contingencies [Line Items]
Increase in remediation reserve																					$ 3,000,000			$ 3,000,000
Baie Comeau Smelter [Member]
Loss Contingencies [Line Items]
Increase in remediation reserve																							$ 25,000,000
Mosjoen [Member]
Loss Contingencies [Line Items]
Increase in remediation reserve																			$ 11,000,000				$ 20,000,000
Dampier to Bunbury Natural Gas Pipeline [Member]
Loss Contingencies [Line Items]
Capital investment																									$ 17,000,000	AUD 24
Dampier to Bunbury Natural Gas Pipeline [Member] | AofA [Member]
Loss Contingencies [Line Items]
Capital investment																												$ 141,000,000	AUD 176
Investment percentage						30.00%																			20.00%	20.00%
Prepayments made under the agreement for future gas transmission services														$ 275,000,000			$ 275,000,000															AUD 372
Dampier to Bunbury Natural Gas Pipeline [Member] | Three-Year Equity Call Plan [Member]
Loss Contingencies [Line Items]
Required plan contributions																					39,000,000	AUD 40
Dampier to Bunbury Natural Gas Pipeline [Member] | New Equity Call Plan [Member]
Loss Contingencies [Line Items]
Required plan contributions															$ 3,000,000	AUD 5					$ 30,000,000	AUD 36
Capital investment															$ 20,000,000	AUD 27

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Other Income, Net - Schedule of Other Income, Net (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Other Income and Expenses [Abstract]
Equity loss	$ 15	$ 24	$ 37	$ 44
Interest income	(5)	(4)	(9)	(7)
Foreign currency (gains) losses, net	(9)	6	6	(10)
Net gain from asset sales	(30)	(28)	(28)	(28)
Net loss on mark-to-market derivative contracts (O)	8	7	9	3
Other, net	(16)	$ (5)	(18)	(14)
Other (income) expenses, net	$ (37)		$ (3)	$ (12)

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Other Income, Net - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Other Non operating Income Expense [Line Items]
Net loss (gain) from asset sales	$ 30	$ 28	$ 28	$ 28
Disposal of Equity Interests [Member]
Other Non operating Income Expense [Line Items]
Net loss (gain) from asset sales	$ 27		$ 27
Disposal of Land [Member]
Other Non operating Income Expense [Line Items]
Net loss (gain) from asset sales		$ 29		$ 29

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Segment Information - Schedule of Operating Results of Alcoa's Reportable Segment (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Segment Reporting Information [Line Items]
Equity (loss) income		$ (23)	$ (38)	$ (42)
Total sales	$ 5,295	5,897	10,242	11,716
Depreciation, depletion, and amortization	296	307	593	613
Income taxes	173	216	288	491
After-tax operating income (ATOI)	444	567	735	1,223
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total sales	6,097	6,924	11,836	13,961
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Intersegment sales	802	1,027	1,598	2,256
Third-Party Sales [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Third-party sales	5,295	5,897	10,238	11,705
Alumina [Member]
Segment Reporting Information [Line Items]
Equity (loss) income		(11)	(21)	(18)
Depreciation, depletion, and amortization	66	77	129	157
Income taxes	40	87	45	179
After-tax operating income (ATOI)	109	215	117	436
Alumina [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total sales	994	1,355	1,831	2,743
Alumina [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Intersegment sales	300	431	592	932
Alumina [Member] | Third-Party Sales [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Third-party sales	694	924	1,239	1,811
Primary Metals [Member]
Segment Reporting Information [Line Items]
Equity (loss) income		(5)	4	(8)
Depreciation, depletion, and amortization	101	109	203	218
Income taxes		6	(16)	63
After-tax operating income (ATOI)	41	67	55	254
Primary Metals [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total sales	1,592	2,096	3,190	4,360
Primary Metals [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Intersegment sales	473	562	948	1,254
Primary Metals [Member] | Third-Party Sales [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Third-party sales	1,119	1,534	2,242	3,106
Global Rolled Products [Member]
Segment Reporting Information [Line Items]
Equity (loss) income		(7)	(21)	(16)
Depreciation, depletion, and amortization	55	56	111	112
Income taxes	28	25	62	61
After-tax operating income (ATOI)	68	76	136	130
Global Rolled Products [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total sales	1,579	1,702	3,005	3,359
Global Rolled Products [Member] | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Intersegment sales	29	34	58	70
Global Rolled Products [Member] | Third-Party Sales [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Third-party sales	1,550	1,668	2,947	3,289
Engineered Products and Solutions [Member]
Segment Reporting Information [Line Items]
Depreciation, depletion, and amortization	62	54	127	105
Income taxes	87	81	165	157
After-tax operating income (ATOI)	180	165	342	321
Engineered Products and Solutions [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total sales	1,465	1,279	2,914	2,536
Engineered Products and Solutions [Member] | Third-Party Sales [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Third-party sales	1,465	1,279	2,914	2,536
Transportation and Construction Solutions [Member]
Segment Reporting Information [Line Items]
Depreciation, depletion, and amortization	12	11	23	21
Income taxes	18	17	32	31
After-tax operating income (ATOI)	46	44	85	82
Transportation and Construction Solutions [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Total sales	467	492	896	963
Transportation and Construction Solutions [Member] | Third-Party Sales [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Third-party sales	$ 467	$ 492	$ 896	$ 963

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Segment Information - Schedule of Segment ATOI to Consolidated Net Income Attributable to Alcoa (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Segment Reporting Information [Line Items]
Total segment ATOI	$ 444	$ 567	$ 735	$ 1,223
Metal price lag	7	(39)	8	(62)
Interest expense	(129)	(124)	(256)	(246)
Noncontrolling interests	(43)	(67)	(38)	(127)
Consolidated net income attributable to Alcoa	135	140	151	335
Other [Member]
Segment Reporting Information [Line Items]
Impact of LIFO	(10)	36	(6)	43
Interest expense	(84)	(80)	(167)	(160)
Noncontrolling interests	(43)	(67)	(38)	(127)
Corporate expense	(77)	(65)	(132)	(127)
Restructuring and other charges	(15)	(159)	(76)	(320)
Other	$ (87)	$ (53)	$ (173)	$ (135)

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Earnings Per Share - Reconciliation of Information Used to Compute Basic and Diluted EPS (Detail) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share [Abstract]
Net income attributable to Alcoa	$ 135	$ 140	$ 151	$ 335
Less: preferred stock dividends declared	17	17	35	35
Net income available to Alcoa common shareholders - basic	118	123	116	300
Add: interest expense related to convertible notes	2
Add: dividends related to mandatory convertible preferred stock	0	0	0	0
Net income available to Alcoa common shareholders - diluted	$ 120	$ 123	$ 116	$ 300
Average shares outstanding - basic	1,315	1,222	1,314	1,222
Stock options	2	4	1	5
Stock and performance awards	11	11	11	11
Convertible notes	28
Mandatory convertible preferred stock	0	0	0	0
Average shares outstanding - diluted	1,356	1,237	1,326	1,238

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Earnings Per Share - Additional Information (Detail) - $ / shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Mandatory Convertible Notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of anti-dilutive securities	77	77	77	77
Equity Unit Purchase Agreements [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of anti-dilutive securities			25	13
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Weighted average exercise price of options			$ 12.73	$ 14.78
Convertible Notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of anti-dilutive securities			28

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Receivables - Additional Information (Detail)		6 Months Ended	12 Months Ended
	Mar. 30, 2012 USD ($)	Jun. 30, 2016 USD ($) Agreement	Dec. 31, 2015 USD ($)
Schedule Of Financial Receivables [Line Items]
Number of arrangement with different financial institution to sell customer receivables | Agreement		3
Deferred purchase price receivable	$ 254,000,000	$ 197,000,000	$ 249,000,000
Net cash funding received		100,000,000
Amount of cash draws under arrangement		200,000,000
Amount of cash repayments under arrangement		100,000,000
Accounts receivables		27,521,000,000
Cash collections of other receivables		26,974,000,000
Minimum [Member]
Schedule Of Financial Receivables [Line Items]
Funding of customer receivables sold		200,000,000
Maximum [Member]
Schedule Of Financial Receivables [Line Items]
Funding of customer receivables sold		500,000,000
Predecessor [Member]
Schedule Of Financial Receivables [Line Items]
Net cash funding received		350,000,000
Amount of cash draws under arrangement		1,508,000,000
Amount of cash repayments under arrangement		$ 1,158,000,000

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Pension and Other Postretirement Benefits - Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 41	$ 44	$ 81	$ 88
Interest cost	122	145	244	289
Expected return on plan assets	(186)	(189)	(371)	(377)
Recognized net actuarial loss	102	117	204	235
Amortization of prior service benefit	4	4	8	8
Settlements	2		2	1
Special termination benefits		10	1	12
Net periodic benefit cost	85	131	169	256
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	4	4	7	7
Interest cost	19	23	37	46
Recognized net actuarial loss	5	5	11	9
Amortization of prior service benefit	(7)	(10)	(13)	(19)
Special termination benefits		1		1
Net periodic benefit cost	$ 21	22	$ 42	43
Curtailments		$ (1)		$ (1)

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Pension and Other Postretirement Benefits - Components of Net Periodic Benefit Cost (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Defined Benefit Plan Disclosure [Line Items]
Restructuring and other charges	$ 23	$ 217	$ 116	$ 394
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Restructuring and other charges	$ 2		$ 2

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Pension and Other Postretirement Benefits - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2016
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in interest cost component of net periodic benefit cost determination	$ 24	$ 48
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in interest cost component of net periodic benefit cost determination	$ 4	$ 8

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Derivatives and Other Financial Instruments - Additional Information (Detail) t in Thousands	3 Months Ended		6 Months Ended			12 Months Ended
	Jun. 30, 2016 USD ($) Derivative	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) MWh Derivative Agency t	Mar. 31, 2016	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($) MWh t
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other derivative contracts estimated term of quoted market prices, in years				10 years
Number of credit rating agencies | Agency			3
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of derivative instruments | Derivative	10		10
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivatives recorded as assets	$ 6,000,000		$ 6,000,000			$ 8,000,000
Fair value of derivatives recorded as liabilities	11,000,000		11,000,000			$ 58,000,000
Net gain (loss) of derivative instruments	1,000,000	$ 15,000,000	3,000,000		$ 41,000,000
Derivatives Not Designated as Hedging Instruments [Member] | Other Expenses (Income), Net [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gain (loss) of derivative instruments	(6,000,000)	(5,000,000)	(9,000,000)		(2,000,000)
Embedded Aluminum Derivative [Member] | Cash Flow Hedging [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recognized an unrealized gain (loss)	(253,000,000)	616,000,000	(368,000,000)		518,000,000
Realized gain (loss) on derivatives	$ 1,000,000	(12,000,000)	$ 5,000,000		(24,000,000)
Embedded Aluminum Derivative [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of derivative instruments | Derivative	8		8
Embedded Aluminum Derivative [Member] | Level 3 [Member] | Cash Flow Hedging [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of derivative instruments | Derivative	9		9
Embedded Aluminum Derivative [Member] | Derivatives Designated as Hedging Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Aluminum forecast sales | t			3,261			3,307
Embedded Aluminum Derivative [Member] | Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Amount of gain (loss) expected to be recognized into earnings over the next 12 months			$ 25,000,000
Derivative instruments ineffectiveness	$ 0	0	0		0
Embedded Aluminum Derivative [Member] | Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Other Expenses (Income), Net [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other expenses (income), net	0	1,000,000	1,000,000		1,000,000
Embedded Aluminum Derivative [Member] | Derivatives Not Designated as Hedging Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gain (loss) of derivative instruments	$ (4,000,000)	(2,000,000)	$ (8,000,000)		(1,000,000)
Embedded Aluminum Derivative [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of derivative instruments | Derivative	3		3
Energy Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recognized an unrealized gain (loss)	$ 45,000,000	(17,000,000)	$ 39,000,000		(11,000,000)
Energy Contracts [Member] | Level 3 [Member] | Cash Flow Hedging [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of derivative instruments | Derivative	3		3
Energy Contracts [Member] | Derivatives Designated as Hedging Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative instruments ineffectiveness	$ 0	0	$ 3,000,000		0
Forecasted energy purchases in megawatt hours | MWh			59,409,328			59,409,328
Embedded Credit Derivative [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of derivative instruments | Derivative	5		5
Embedded Credit Derivative [Member] | Derivatives Not Designated as Hedging Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net gain (loss) of derivative instruments	$ (2,000,000)	$ (3,000,000)	$ (1,000,000)		$ (1,000,000)
Embedded Credit Derivative [Member] | Derivatives Not Designated as Hedging Instruments [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of derivative instruments | Derivative	0		0

XML

Derivatives and Other Financial Instruments - Schedule of Quantitative Information for Level 3 Derivative Contracts (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2016 USD ($) MWh Index $ / MWh $ / Metric_Ton $ / lb $ / AUD $ / Barrels	Dec. 31, 2015 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Assets, Fair value | $	$ 794	$ 1,137
Embedded Aluminum Derivative [Member] | Price of Aluminum beyond Forward Curve [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Assets, Fair value | $	718
Derivative Liabilities, Fair value | $	$ 196
Embedded Aluminum Derivative [Member] | Price of Aluminum beyond Forward Curve [Member] | Level 3 [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Expected future aluminum prices	2,093
Maturity year of future aluminum price	2026
Embedded Aluminum Derivative [Member] | Price of Aluminum beyond Forward Curve [Member] | Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Expected future aluminum prices	2,137
Maturity year of future aluminum price	2027
Embedded Aluminum Derivative [Member] | Price of Aluminum beyond Forward Curve [Member] | Average Price [Member] | Level 3 [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Expected future aluminum prices	2,093
Maturity year of future aluminum price	2026
Embedded Aluminum Derivative [Member] | Price of Aluminum beyond Forward Curve [Member] | Midwest Premium | Level 3 [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Midwest Premium | $ / lb	0.0775
Foreign currency exchange rate expected year	2021
Embedded Aluminum Derivative [Member] | Price of Aluminum beyond Forward Curve [Member] | Midwest Premium | Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Midwest Premium | $ / lb	0.0775
Embedded Aluminum Derivative [Member] | Interrelationship of Future Aluminum Prices, Foreign Currency Exchange Rates, and U.S. Consumer Price Index [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Assets, Fair value | $	$ 23
Embedded Aluminum Derivative [Member] | Interrelationship of Future Aluminum Prices, Foreign Currency Exchange Rates, and U.S. Consumer Price Index [Member] | Average Price [Member] | Level 3 [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Expected future aluminum prices	1,631
Maturity year of future aluminum price	2016
Embedded Aluminum Derivative [Member] | Interrelationship of Future Aluminum Prices, Foreign Currency Exchange Rates, and U.S. Consumer Price Index [Member] | Average Price [Member] | Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Expected future aluminum prices	1,637
Maturity year of future aluminum price	2016
Embedded Aluminum Derivative [Member] | Interrelationship of Future Aluminum Prices, Foreign Currency Exchange Rates, and U.S. Consumer Price Index [Member] | Estimated Foreign Currency Exchange Rate [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Foreign currency exchange rate | $ / AUD	0.74
Foreign currency exchange rate expected year	2016
Embedded Aluminum Derivative [Member] | Interrelationship of Future Aluminum Prices, Foreign Currency Exchange Rates, and U.S. Consumer Price Index [Member] | Consumer Price Index [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Consumer price index base year	1982
Consumer price index base | Index	100
Expected consumer price index | Index	236
Expected consumer price index, Year	2016
Embedded Aluminum Derivative [Member] | Interrelationship of LME Price to Overall Energy Price [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Assets, Fair value | $	$ 4
Embedded Aluminum Derivative [Member] | Interrelationship of LME Price to Overall Energy Price [Member] | Average Price [Member] | Level 3 [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Expected future aluminum prices	1,614
Maturity year of future aluminum price	2016
Embedded Aluminum Derivative [Member] | Interrelationship of LME Price to Overall Energy Price [Member] | Average Price [Member] | Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Expected future aluminum prices	1,755
Maturity year of future aluminum price	2019
Embedded Aluminum Derivative [Member] | Interrelationship of Future Aluminum and Oil Prices [Member] | Average Price [Member] | Level 3 [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Expected future aluminum prices	1,631
Maturity year of future aluminum price	2016
Expected future oil prices | $ / Barrels	49
Maturity year of future oil price	2016
Embedded Aluminum Derivative [Member] | Interrelationship of Future Aluminum and Oil Prices [Member] | Average Price [Member] | Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Expected future aluminum prices	1,710
Maturity year of future aluminum price	2018
Expected future oil prices | $ / Barrels	55
Maturity year of future oil price	2018
Embedded Aluminum Derivative [Member] | Interrelationship of London Metal Exchange Price to Amount Of Megawatt Hours of Energy Needed to Produce Forecasted Metric Tons of Aluminum [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Liabilities, Fair value | $	$ 32
Megawatt hours per year | MWh	2,000,000
Embedded Aluminum Derivative [Member] | Interrelationship of London Metal Exchange Price to Amount Of Megawatt Hours of Energy Needed to Produce Forecasted Metric Tons of Aluminum [Member] | Average Price [Member] | Level 3 [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Expected future aluminum prices	1,631
Maturity year of future aluminum price	2016
Embedded Aluminum Derivative [Member] | Interrelationship of London Metal Exchange Price to Amount Of Megawatt Hours of Energy Needed to Produce Forecasted Metric Tons of Aluminum [Member] | Average Price [Member] | Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Expected future aluminum prices	1,729
Maturity year of future aluminum price	2019
Embedded Aluminum Derivative [Member] | Interrelationship of London Metal Exchange Price to Amount Of Megawatt Hours of Energy Needed to Produce Forecasted Metric Tons of Aluminum [Member] | Midwest Premium | Level 3 [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Midwest Premium | $ / lb	0.0725
Foreign currency exchange rate expected year	2016
Embedded Aluminum Derivative [Member] | Interrelationship of London Metal Exchange Price to Amount Of Megawatt Hours of Energy Needed to Produce Forecasted Metric Tons of Aluminum [Member] | Midwest Premium | Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Midwest Premium | $ / lb	0.0775
Foreign currency exchange rate expected year	2019
Embedded Aluminum Derivative [Member] | Two Contracts [Member] | Price of Aluminum beyond Forward Curve [Member] | Average Price [Member] | Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Expected future aluminum prices	2,245
Maturity year of future aluminum price	2029
Embedded Aluminum Derivative [Member] | Two Contracts [Member] | Price of Aluminum beyond Forward Curve [Member] | Midwest Premium | Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Foreign currency exchange rate expected year	2029
Embedded Aluminum Derivative [Member] | One Contract [Member] | Price of Aluminum beyond Forward Curve [Member] | Average Price [Member] | Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Expected future aluminum prices	2,540
Maturity year of future aluminum price	2036
Embedded Aluminum Derivative [Member] | One Contract [Member] | Price of Aluminum beyond Forward Curve [Member] | Midwest Premium | Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Foreign currency exchange rate expected year	2036
Energy Contracts [Member] | Price of Electricity beyond Forward Curve [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Assets, Fair value | $	$ 40
Energy Contracts [Member] | Price of Electricity beyond Forward Curve [Member] | Average Price [Member] | Level 3 [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Price of electricity beyond forward curve | $ / MWh	48
Maturity date of electricity beyond forward curve	2019
Energy Contracts [Member] | Price of Electricity beyond Forward Curve [Member] | Average Price [Member] | Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Price of electricity beyond forward curve | $ / MWh	116
Maturity date of electricity beyond forward curve	2036
Embedded Credit Derivative [Member] | Credit Spread between Alcoa and Counterparty [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Liabilities, Fair value | $	$ 33
Embedded Credit Derivative [Member] | Credit Spread between Alcoa and Counterparty [Member] | Credit Spread [Member] | Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Percentage of credit spread	3.63%
Embedded Credit Derivative [Member] | Credit Spread between Alcoa and Counterparty [Member] | Credit Spread [Member] | Level 3 [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Percentage of credit spread	3.45%
Embedded Credit Derivative [Member] | Credit Spread between Alcoa and Counterparty [Member] | Credit Spread [Member] | Level 3 [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Percentage of credit spread	3.81%

XML

Derivatives and Other Financial Instruments - Schedule of Fair Values of Level 3 Derivative Instruments Recorded as Assets and Liabilities (Detail) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Fair value asset derivatives	$ 794	$ 1,137
Fair value liability derivatives	270	208
Derivatives Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value asset derivatives	771	1,068
Fair value liability derivatives	205	173
Derivatives Designated as Hedging Instruments [Member] | Prepaid Expenses and Other Current Assets [Member] | Embedded Aluminum Derivative [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value asset derivatives	51	72
Derivatives Designated as Hedging Instruments [Member] | Other Noncurrent Assets [Member] | Embedded Aluminum Derivative [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value asset derivatives	671	994
Derivatives Designated as Hedging Instruments [Member] | Other Noncurrent Assets [Member] | Energy Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value asset derivatives	49	2
Derivatives Designated as Hedging Instruments [Member] | Other Current Liabilities [Member] | Embedded Aluminum Derivative [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value liability derivatives	14	9
Derivatives Designated as Hedging Instruments [Member] | Other Current Liabilities [Member] | Energy Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value liability derivatives	9	4
Derivatives Designated as Hedging Instruments [Member] | Other Noncurrent Liabilities and Deferred Credits [Member] | Embedded Aluminum Derivative [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value liability derivatives	182	160
Derivatives Not Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value asset derivatives	23	69
Fair value liability derivatives	65	35
Derivatives Not Designated as Hedging Instruments [Member] | Prepaid Expenses and Other Current Assets [Member] | Embedded Aluminum Derivative [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value asset derivatives	23	69
Derivatives Not Designated as Hedging Instruments [Member] | Other Current Liabilities [Member] | Embedded Aluminum Derivative [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value liability derivatives	8
Derivatives Not Designated as Hedging Instruments [Member] | Other Current Liabilities [Member] | Embedded Credit Derivative [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value liability derivatives	5	6
Derivatives Not Designated as Hedging Instruments [Member] | Other Noncurrent Liabilities and Deferred Credits [Member] | Embedded Aluminum Derivative [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value liability derivatives	24
Derivatives Not Designated as Hedging Instruments [Member] | Other Noncurrent Liabilities and Deferred Credits [Member] | Embedded Credit Derivative [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Fair value liability derivatives	$ 28	$ 29

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Derivatives and Other Financial Instruments - Schedule of Reconciliation of Activity for Derivative Contracts (Detail) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2016
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value measurement, Assets, Purchases, sales, issuances, and settlements	$ 0	$ 0
Embedded Aluminum Derivative [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value measurement, Assets, Beginning balance	988,000,000	1,135,000,000
Fair value measurement, Assets, Sales	(3,000,000)	(10,000,000)
Fair value measurement, Assets, Cost of goods sold	(30,000,000)	(61,000,000)
Fair value measurement, Assets, Other income, net	(4,000,000)	(8,000,000)
Fair value measurement, Assets, Other comprehensive income	(215,000,000)	(336,000,000)
Fair value measurement, Assets, Transfers into and/or out of Level 3	0	0
Fair value measurement, Assets, Other	9,000,000
Fair value measurement, Assets, Other		25,000,000
Fair value measurement, Assets, Ending balance	745,000,000	745,000,000
Fair value measurement, Assets, Sales	0	0
Fair value measurement, Assets, Cost of goods sold	0	0
Fair value measurement, Assets, Other income , net	(4,000,000)	(8,000,000)
Fair value measurement, Liabilities, Beginning balance	161,000,000	169,000,000
Fair value measurement, Liabilities, Sales	(3,000,000)	(5,000,000)
Fair value measurement, Liabilities, Other comprehensive income	38,000,000	32,000,000
Fair value measurement, Liabilities, Purchases, sales, issuances, and settlements	32,000,000	32,000,000
Fair value measurement, Liabilities, Transfers into and/or out of Level 3	0	0
Fair value measurement, Liabilities, Ending balance	228,000,000	228,000,000
Fair value measurement, Liabilities, Sales	0	0
Fair value measurement, Liabilities, Cost of goods sold	0	0
Embedded Credit Derivative [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value measurement, Liabilities, Beginning balance	33,000,000	35,000,000
Fair value measurement, Liabilities, Cost of goods sold	(2,000,000)	(3,000,000)
Fair value measurement, Liabilities, Other income, net	2,000,000	1,000,000
Fair value measurement, Liabilities, Transfers into and/or out of Level 3	0	0
Fair value measurement, Liabilities, Ending balance	33,000,000	33,000,000
Fair value measurement, Liabilities, Sales	0	0
Fair value measurement, Liabilities, Cost of goods sold	0	0
Fair value measurement, Liabilities, Other income, net	2,000,000	1,000,000
Energy Contracts [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value measurement, Assets, Beginning balance	6,000,000	2,000,000
Fair value measurement, Assets, Other income, net		2,000,000
Fair value measurement, Assets, Other comprehensive income	37,000,000	39,000,000
Fair value measurement, Assets, Transfers into and/or out of Level 3	0	0
Fair value measurement, Assets, Other	6,000,000
Fair value measurement, Assets, Other		6,000,000
Fair value measurement, Assets, Ending balance	49,000,000	49,000,000
Fair value measurement, Assets, Sales	0	0
Fair value measurement, Assets, Cost of goods sold	0	0
Fair value measurement, Assets, Other income , net		2,000,000
Fair value measurement, Liabilities, Beginning balance	11,000,000	4,000,000
Fair value measurement, Liabilities, Other income, net		(1,000,000)
Fair value measurement, Liabilities, Other comprehensive income	(8,000,000)
Fair value measurement, Liabilities, Transfers into and/or out of Level 3	0	0
Fair value measurement, Liabilities, Other	6,000,000
Fair value measurement, Liabilities, Other		6,000,000
Fair value measurement, Liabilities, Ending balance	9,000,000	9,000,000
Fair value measurement, Liabilities, Sales	0	0
Fair value measurement, Liabilities, Cost of goods sold	$ 0	0
Fair value measurement, Liabilities, Other income, net		$ (1,000,000)

XML

Derivatives and Other Financial Instruments - Schedule of Reconciliation of Activity for Derivative Contracts (Parenthetical) (Detail) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2016
Fair Value Disclosures [Abstract]
Fair value measurement, Assets, Purchases, sales and settlements	$ 0	$ 0

XML

Derivatives and Other Financial Instruments - Schedule of Carrying Values and Fair Values of Other Financial Instruments (Detail) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Carrying Value [Member]
Derivative [Line Items]
Cash and cash equivalents	$ 1,929	$ 1,919
Restricted cash	30	37
Noncurrent receivables	19	17
Available-for-sale securities	68	193
Short-term borrowings	33	38
Commercial paper	0	0
Long-term debt due within one year	774	21
Contingent payment related to an acquisition	132	130
Long-term debt, less amount due within one year	8,278	8,993
Fair Value [Member]
Derivative [Line Items]
Cash and cash equivalents	1,929	1,919
Restricted cash	30	37
Noncurrent receivables	19	17
Available-for-sale securities	68	193
Short-term borrowings	33	38
Commercial paper	0	0
Long-term debt due within one year	791	21
Contingent payment related to an acquisition	132	130
Long-term debt, less amount due within one year	$ 8,670	$ 8,922

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Proposed Separation Transaction - Additional Information (Detail) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)
Arconic Inc [Member]
Proposed Separation Transaction [Line Items]
Percentage of shares retained	19.90%	19.90%
Selling, General Administrative, and Other Expenses [Member]
Proposed Separation Transaction [Line Items]
Costs related to proposed transaction, pre-tax	$ 45	$ 63
Costs related to proposed transaction, after-tax	$ 37	$ 54

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Subsequent Events - Additional Information (Detail) - shares	6 Months Ended
	Jun. 30, 2016	Jul. 22, 2016	Jul. 21, 2016	Jul. 20, 2016
Subsequent Event [Line Items]
Reverse stock split description	On July 21, 2016, Alcoa’s Board of Directors authorized both a reverse stock split of the Company’s common stock at a ratio of one-for-three.
Subsequent Event [Member]
Subsequent Event [Line Items]
Number of authorized shares of Alcoa's common stock			600,000,000	1,800,000,000
Common stock share outstanding		1,315,374,511