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Note 12 - Other (Income) Charges , Net (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Other Income And Expenses [Abstract]        
Loss on foreign exchange transactions $ 1 $ 1 $ 2 $ 6
Change in fair value of embedded conversion features derivative liability [1] (3) 431 (3) 382
Other       (1)
Total $ (2) $ 432 $ (1) $ 387
[1] Refer to Note 20, “Financial Instruments”.