Note 16 - Environmental, Health and Safety Matters (Details Textual) $ in Millions |
3 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2021
USD ($)
|
Mar. 31, 2020
USD ($)
|
Dec. 31, 2020
USD ($)
|
|
| Environmental Costs Recognized, Capitalized in Period | $ 7 | $ 6 | |
| Accrual for Environmental Loss Contingencies, Ending Balance | 4 | $ 4 | |
| Accrued Environmental Loss Contingencies, Current | 1 | 1 | |
| Accrued Environmental Loss Contingencies, Noncurrent | $ 3 | $ 3 | |
| Maximum Period for Payment of Remediation Liabilities (Year) | 30 years | ||
| Site Contingency, Number of Former Facility or Third Party Sites with Claims Against Entity for Cleanup Liabilities | 9 | ||
| X | ||||||||||
- Definition The maximum period for payment of remediation liabilities. No definition available.
|
| X | ||||||||||
- Definition The number of former facility or third party sites with claims against the entity for cleanup liabilities. No definition available.
|
| X | ||||||||||
- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of environmental remediation costs capitalized. These expenditures may relate to long-lived improvements in operating facilities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|