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Employee Benefits - Defined Contribution Plan (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Deferred compensation plan      
Deferred compensation plan income (expense) $ (3) $ (6) $ (11)
Deferred compensation plan liability included in other liabilities 26 23  
Deferred compensation plan assets included in other current assets 29 26  
Pension distribution   32  
Investment income (expense) related to the mark-to-market of investments treated as trading securities 3 6 11
United States      
Defined contribution plans      
Contribution expense $ 4 $ 4 $ 4