Note 23 - Huntsman Corporation Stockholders' Equity - Dividends on Common Stock (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2020 |
Sep. 30, 2020 |
Jun. 30, 2020 |
Mar. 31, 2020 |
Dec. 31, 2019 |
Sep. 30, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Per share payment amount (in dollars per share) | $ 0.1625 | $ 0.1625 | $ 0.1625 | $ 0.1625 | $ 0.1625 | $ 0.1625 | $ 0.1625 | $ 0.1625 | |||
| Approximate amount paid | $ 35 | $ 36 | $ 36 | $ 37 | $ 35 | $ 38 | $ 38 | $ 39 | $ 144 | $ 150 | $ 156 |
| X | ||||||||||
- Definition Aggregate dividends paid during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|