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Note 18 - Other Comprehensive Income (Loss) (Tables) | 9 Months Ended
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Sep. 30, 2021
Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract] |
Changes in Other Comprehensive Income (Loss), by Component | The changes in Other comprehensive income (loss), by component, were as follows:
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
(in millions) |  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Currency translation adjustments |  | $ | — |  |  | $ | (1 | ) |  | $ | 3 |  |  | $ | (17 | )
Pension and other postretirement benefit plan changes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Newly established net actuarial (loss) gain |  |  | — |  |  |  | — |  |  |  | (1 | ) |  |  | 6 |
Tax Provision |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Newly established net actuarial (loss) gain, net of tax |  |  | — |  |  |  | — |  |  |  | (1 | ) |  |  | 6 |
Reclassification adjustments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of prior service credit (1) |  |  | (2 | ) |  |  | (2 | ) |  |  | (6 | ) |  |  | (6 | )
Amortization of actuarial losses (1) |  |  | 9 |  |  |  | 5 |  |  |  | 28 |  |  |  | 15 |
Recognition of losses due to curtailments and settlements |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1 |
Total reclassification adjustments |  |  | 7 |  |  |  | 3 |  |  |  | 22 |  |  |  | 10 |
Tax provision |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (1 | )
Reclassification adjustments, net of tax |  |  | 7 |  |  |  | 3 |  |  |  | 22 |  |  |  | 9 |
Pension and other postretirement benefit plan changes, net of tax |  |  | 7 |  |  |  | 3 |  |  |  | 21 |  |  |  | 15 |
Other comprehensive income (loss) |  | $ | 7 |  |  | $ | 2 |  |  | $ | 24 |  |  | $ | (2 | )
| (1) | Reclassified to Total Net Periodic Benefit Cost - refer to Note 14, "Retirement Plans and Other Postretirement Benefits".

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e526-108580 + Details
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