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Severance and Other Charges (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Restructuring and Related Activities [Abstract]        
Severance and other charges $ 100 $ 100 $ 36 $ 27
Severance and restructuring costs, after-tax $ 79   $ 28 $ 21
Severance and restructuring costs, per share, after-tax (in dollars per share) $ 0.31   $ 0.10 $ 0.08
Severance charges     $ 36 $ 27
Severance costs, after-tax     $ 28 $ 21
Severance costs, per share, after-tax (in dollars per share)     $ 0.10 $ 0.08