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Employee Benefits - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2023
Jun. 30, 2022
U.S.          
Defined Benefit Plan Disclosure [Line Items]          
Non-cash settlement charge $ 0 $ 0 $ 1 $ 0 $ 1
Expected future employer cash contribution 43     43  
Other          
Defined Benefit Plan Disclosure [Line Items]          
Non-cash settlement charge 27 0   27 0
Expected future employer cash contribution 14     14  
U.K.          
Defined Benefit Plan Disclosure [Line Items]          
Non-cash settlement charge 0 $ 0   0 $ 0
Expected future employer cash contribution $ 4     $ 4