Quarterly report pursuant to Section 13 or 15(d)

Note 16 - Environmental, Health and Safety Matters (Details Textual)

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Note 16 - Environmental, Health and Safety Matters (Details Textual)
$ in Millions
3 Months Ended
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2021
USD ($)
Environmental Costs Recognized, Capitalized in Period $ 7 $ 7  
Accrual for Environmental Loss Contingencies, Ending Balance 5   $ 5
Accrued Environmental Loss Contingencies, Current 1   1
Accrued Environmental Loss Contingencies, Noncurrent $ 4   $ 4
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