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Note 19 - Amounts Recognized in Accumulated Other Comprehensive Income (Loss) in Shareholders' Equity For All Major Funded and Unfunded Defined Benefit Plans (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
U.S. [Member]    
Amounts Recognized In Accumulated Other Comprehensive Loss For All Major Funded And Unfunded Defined Benefit Plans [Line Items]    
Prior service credit $ 6 $ 13
Net actuarial gain (loss) 445 (220)
Total 451 (207)
Non-US [Member]    
Amounts Recognized In Accumulated Other Comprehensive Loss For All Major Funded And Unfunded Defined Benefit Plans [Line Items]    
Prior service credit 2 2
Net actuarial gain (loss) (177) (182)
Total $ (175) $ (180)