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Note 10 - Revenue 1 (Details Textual) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Contract with Customer, Liability, Total $ 50   $ 50   $ 57
Contract with Customer, Liability, Revenue Recognized 7 $ 9 36 $ 34  
Contract with Customer, Cash Payments Received for Liabilities That Have Been Deferred 19 $ 19 33 $ 26  
Other Current Assets [Member]          
Contract with Customer, Asset, after Allowance for Credit Loss, Current, Total 2   2   3
Other Current Liabilities [Member]          
Contract with Customer, Liability, Total 38   38   43
Other Noncurrent Liabilities [Member]          
Contract with Customer, Liability, Total $ 12   $ 12   $ 14