XML 62 R44.htm IDEA: XBRL DOCUMENT
v3.20.4

Accumulated Other Comprehensive Loss (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
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 Howmet's shareholders:
| 2020 |  | 2019 |  | 2018 |  |  |  |  |  |
Pension and other postretirement benefits (H) |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period | $ | (2,732) |  |  | $ | (2,344) |  |  | $ | (2,230) |  |  |  |  |  |  |
Adoption of accounting standard (1) | — |  |  | — |  |  | (369) |  |  |  |  |  |  |
Other comprehensive (loss) income: |  |  |  |  |  |  |  |  |  |  |
Unrecognized net actuarial (loss) gain and prior service cost/benefit | (211) |  |  | (587) |  |  | 70 |  |  |  |  |  |  |
Tax benefit (expense) | 48 |  |  | 129 |  |  | (19) |  |  |  |  |  |  |
Total Other comprehensive (loss) income before reclassifications, net of tax | (163) |  |  | (458) |  |  | 51 |  |  |  |  |  |  |
Amortization of net actuarial loss and prior service cost(2) | 149 |  |  | 90 |  |  | 262 |  |  |  |  |  |  |
Tax expense(3) | (32) |  |  | (20) |  |  | (58) |  |  |  |  |  |  |
Total amount reclassified from Accumulated other comprehensive loss, net of tax(4) | 117 |  |  | 70 |  |  | 204 |  |  |  |  |  |  |
Total Other comprehensive (loss) income | (46) |  |  | (388) |  |  | 255 |  |  |  |  |  |  |
Transfer to Arconic Corporation | 1,798 |  |  | — |  |  | — |  |  |  |  |  |  |
Balance at end of period | $ | (980) |  |  | $ | (2,732) |  |  | $ | (2,344) |  |  |  |  |  |  |
Foreign currency translation |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period | $ | (596) |  |  | $ | (583) |  |  | $ | (437) |  |  |  |  |  |  |
Other comprehensive (loss)(5) | 58 |  |  | (13) |  |  | (146) |  |  |  |  |  |  |
Transfer to Arconic Corporation | (428) |  |  | — |  |  | — |  |  |  |  |  |  |
Balance at end of period | $ | (966) |  |  | $ | (596) |  |  | $ | (583) |  |  |  |  |  |  |
Debt securities |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period | $ | — |  |  | $ | (3) |  |  | $ | (2) |  |  |  |  |  |  |
Other comprehensive income (loss)(6) | — |  |  | 3 |  |  | (1) |  |  |  |  |  |  |
Balance at end of period | $ | — |  |  | $ | — |  |  | $ | (3) |  |  |  |  |  |  |
Cash flow hedges |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period | $ | (1) |  |  | $ | 4 |  |  | $ | 25 |  |  |  |  |  |  |
Adoption of accounting standard(7) | — |  |  | (2) |  |  | 2 |  |  |  |  |  |  |
Other comprehensive (loss): |  |  |  |  |  |  |  |  |  |  |
Net change from periodic revaluations | — |  |  | (9) |  |  | (15) |  |  |  |  |  |  |
Tax benefit | — |  |  | 3 |  |  | 3 |  |  |  |  |  |  |
Total Other comprehensive (loss) income before reclassifications, net of tax | — |  |  | (6) |  |  | (12) |  |  |  |  |  |  |
Net amount reclassified to earnings | 6 |  |  | 4 |  |  | (14) |  |  |  |  |  |  |
Tax (expense) benefit(3) | (2) |  |  | (1) |  |  | 3 |  |  |  |  |  |  |
Total amount reclassified from Accumulated other comprehensive loss, net of tax(4) | 4 |  |  | 3 |  |  | (11) |  |  |  |  |  |  |
Total Other comprehensive (loss) | 4 |  |  | (3) |  |  | (23) |  |  |  |  |  |  |
Balance at end of period | $ | 3 |  |  | $ | (1) |  |  | $ | 4 |  |  |  |  |  |  |
Accumulated other comprehensive loss balance at end of period | $ | (1,943) |  |  | $ | (3,329) |  |  | $ | (2,926) |  |  |  |  |  |  |
(1)Adjustment related to eliminating stranded tax effects resulting from a change in income tax rates resulting from the enactment of the Tax Cuts and Jobs Act (2)These amounts were recorded in Other expense (income), net (see Note G). (3)These amounts were included in Provision for income taxes on the accompanying Statement of Consolidated Operations. (4)A positive amount indicates a corresponding charge to earnings and a negative amount indicates a corresponding benefit to earnings. (5)In all periods presented, no amounts were reclassified to earnings. (6)Realized gains and losses were included in Other expense (income), net, on the accompanying Statement of Consolidated Operations. (7)Adjustment was related to eliminating the separate measurement of hedge ineffectiveness as part of the adoption of new hedge accounting guidance

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration