| Employee Benefit Plans (Details) - USD ($) $ in Millions | 12 Months Ended | ||
|---|---|---|---|
| Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | |
| Employee Benefit Plans | 听 | 听 | 听 | 
| Employer cash contributions | $ 30 | $ 32 | $ 35 | 
| X | ||||||||||
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- References No definition available. 
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| X | ||||||||||
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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. No definition available. 
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