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Business Segments - Reporting Information (Parenthetical) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Revenues From External Customers And Long Lived Assets [Line Items]      
Royalty income $ 21 $ 30 $ 27
Intersegment Eliminations      
Revenues From External Customers And Long Lived Assets [Line Items]      
Third-party consulting fees $ 105 $ 35