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Short And Long-Term Debt Loss on the Early Extinguishment of Debt (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Sep. 30, 2019
Mar. 31, 2019
Dec. 31, 2021
Dec. 31, 2020
[1]
Dec. 31, 2019
[1]
Debt Disclosure [Abstract]          
Loss (gain) on the early extinguishment of debt $ (10) $ 5 $ 21 [1] $ 8 $ (5)
Write off of Deferred Debt Issuance Cost     $ 1    
[1] Former parent legacy items and Loss (gain) on the early extinguishment of debt are recorded in Corporate and Other.