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
6 Months Ended
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Environmental Costs Recognized, Capitalized in Period $ 16 $ 12  
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