v3.20.2

Inventories (Details) - USD ($) $ / shares in Units, $ in Millions |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Jan. 01, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Inventory [Line Items] |  |  |  |  |  |
Separation-related adjustments (A) |  | $ 8 |  | $ 324 |  |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest |  | 85 | $ 22 | 94 | $ 69 |
Inventories (K) |  | 901 |  | 901 |  | $ 1,137
Deferred income taxes |  | 12 |  | 12 |  | 159
Parent Company net investment (A) |  | 0 |  | 0 |  | 2,664
Net income (loss) |  | 5 | (24) | (45) | 9 |
Deferred income taxes |  |  |  | 28 | 11 |
Decrease (Increase) in inventories |  |  |  | 197 | (30) |
Cost of goods sold (exclusive of expenses below) (K) |  | 1,218 | 1,565 | 3,614 | 4,849 |
Operating Income (Loss) |  | 64 | 22 | 126 | 137 |
Income before income taxes |  | 15 | (7) | (40) | 55 |
Provision for income taxes (H) |  | 10 | 17 | 5 | 46 |
Net Income (Loss) Attributable to Parent |  | $ 5 | $ (24) | $ (45) | $ 9 |
Basic (in dollars per share) |  | $ 0.05 | $ (0.22) | $ (0.41) | $ 0.08 |
Diluted (in dollars per share) |  | $ 0.05 | $ (0.22) | $ (0.41) | $ 0.08 |
Deferred income taxes |  | $ 296 |  | $ 296 |  | 14
Additional capital |  | 3,332 |  | 3,332 |  | 0
Accumulated deficit |  | (91) |  | (91) |  | 0
Finished goods |  | 242 |  | 242 |  | 237
Work-in-process |  | 525 |  | 525 |  | 746
Purchased raw materials |  | 66 |  | 66 |  | 85
Operating supplies |  | 68 |  | 68 |  | 69
Inventory, gross |  | 901 |  | 901 |  | 1,137
Previously Reported [Member] |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest |  |  | $ 39 |  | $ 99 |
Inventories (K) |  |  |  |  |  | 820
Deferred income taxes |  |  |  |  |  | 87
Parent Company net investment (A) |  |  |  |  |  | 2,419
Net income (loss) |  |  | (7) |  | 39 |
Deferred income taxes |  |  |  |  | 20 |
Decrease (Increase) in inventories |  |  |  |  | (69) |
Cost of goods sold (exclusive of expenses below) (K) |  |  | 1,543 |  | 4,810 |
Operating Income (Loss) |  |  | 44 |  | 176 |
Income before income taxes |  |  | 15 |  | 94 |
Provision for income taxes (H) |  |  | 22 |  | 55 |
Net Income (Loss) Attributable to Parent |  |  | $ (7) |  | $ 39 |
Basic (in dollars per share) |  |  | $ (0.07) |  | $ 0.35 |
Diluted (in dollars per share) |  |  | $ (0.07) |  | $ 0.35 |
Revision of Prior Period, Change in Accounting Principle, Adjustment |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest |  |  | $ (17) |  | $ (30) |
Inventories (K) |  |  |  |  |  | 317
Deferred income taxes |  |  |  |  |  | 72
Parent Company net investment (A) |  |  |  |  |  | $ 245
Net income (loss) |  |  | (17) |  | (30) |
Deferred income taxes |  |  |  |  | (9) |
Decrease (Increase) in inventories |  |  |  |  | 39 |
Cost of goods sold (exclusive of expenses below) (K) |  |  | 22 |  | 39 |
Operating Income (Loss) |  |  | (22) |  | (39) |
Income before income taxes |  |  | (22) |  | (39) |
Provision for income taxes (H) |  |  | (5) |  | (9) |
Net Income (Loss) Attributable to Parent |  |  | $ (17) |  | $ (30) |
Basic (in dollars per share) |  |  | $ (0.15) |  | $ (0.27) |
Diluted (in dollars per share) |  |  | $ (0.15) |  | $ (0.27) |
Change in Accounting Principle, Other |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest |  | 75 |  | 102 |  |
Inventories (K) |  | 591 |  | 591 |  |
Net income (loss) |  | (5) |  | (37) |  |
Deferred income taxes |  |  |  | 29 |  |
Decrease (Increase) in inventories |  |  |  | 188 |  |
Cost of goods sold (exclusive of expenses below) (K) |  | 1,232 |  | 3,605 |  |
Operating Income (Loss) |  | 50 |  | 135 |  |
Income before income taxes |  | 1 |  | (31) |  |
Provision for income taxes (H) |  | 6 |  | 6 |  |
Net Income (Loss) Attributable to Parent |  | $ (5) |  | $ (37) |  |
Basic (in dollars per share) |  | $ (0.05) |  | $ (0.34) |  |
Diluted (in dollars per share) |  | $ (0.05) |  | $ (0.34) |  |
Deferred income taxes |  | $ 366 |  | $ 366 |  |
Additional capital |  | 3,098 |  | 3,098 |  |
Accumulated deficit |  | (97) |  | (97) |  |
Change In Accounting Principle, Adjustment |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest |  | 10 |  | (8) |  |
Inventories (K) |  | 310 |  | 310 |  |
Net income (loss) |  | 10 |  | (8) |  |
Deferred income taxes |  |  |  | (1) |  |
Decrease (Increase) in inventories |  |  |  | 9 |  |
Cost of goods sold (exclusive of expenses below) (K) |  | (14) |  | 9 |  |
Operating Income (Loss) |  | 14 |  | (9) |  |
Income before income taxes |  | 14 |  | (9) |  |
Provision for income taxes (H) |  | 4 |  | (1) |  |
Net Income (Loss) Attributable to Parent |  | $ 10 |  | $ (8) |  |
Basic (in dollars per share) |  | $ 0.10 |  | $ (0.07) |  |
Diluted (in dollars per share) |  | $ 0.10 |  | $ (0.07) |  |
Deferred income taxes |  | $ (70) |  | $ (70) |  |
Additional capital |  | 234 |  | 234 |  |
Accumulated deficit |  | 6 |  | 6 |  |
Parent Company net investment |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Separation-related adjustments (A) |  |  |  | 2,548 |  |
Net income (loss) |  | 0 | $ (24) | 46 | $ 9 |
Parent Company net investment | Revision of Prior Period, Change in Accounting Principle, Adjustment |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Separation-related adjustments (A) | $ 293 |  |  |  |  |
Arconic Corporation |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest |  | 85 | 22 | 94 | 69 |
Net income (loss) |  | 5 | (24) | (45) | 9 |
Arconic Corporation | Previously Reported [Member] |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest |  |  | 39 |  | 99 |
Arconic Corporation | Revision of Prior Period, Change in Accounting Principle, Adjustment |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest |  |  | $ (17) |  | $ (30) |
Arconic Corporation | Change in Accounting Principle, Other |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest |  | 75 |  | 102 |  |
Arconic Corporation | Change In Accounting Principle, Adjustment |  |  |  |  |  |
Inventory [Line Items] |  |  |  |  |  |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest |  | $ 10 |  | $ (8) |  |

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- Definition Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 65 -Paragraph 15 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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