Note 4 - Business Dispositions (Details Textual) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2022 |
Mar. 31, 2021 |
Dec. 31, 2020 |
Dec. 23, 2020 |
|
| Equity Securities, FV-NI, Unrealized Gain (Loss), Total | $ (2) | $ (19) | ||
| Venator Materials PLC [Member] | ||||
| Equity Securities, FV-NI, Unrealized Gain (Loss), Total | $ (2) | $ (19) | ||
| Venator Materials PLC [Member] | SK Capital Partners, LP [Member] | ||||
| Equity Method Investment Using Fair Value Option, Number of Shares Sold (in shares) | 42.4 | |||
| Equity Securities Held for Which There Exists an Option for Another Party to Purchase (in shares) | 9.7 | |||
| Equity Securities Held for Which There Exists an Option for Another Party to Purchase, Price Per Share (in dollars per share) | $ 2.15 | |||
| X | ||||||||||
- Definition Represents the number of shares sold of an equity investment accounted for under the fair value option. No definition available.
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| X | ||||||||||
- Definition Represents the number of specified equity securities, held by the reporting entity, for which there exists an option for another party to purchase the securities. No definition available.
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| X | ||||||||||
- Definition Represents the price per share at which another party has the option to purchase the specified securities. No definition available.
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| X | ||||||||||
- Definition Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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