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Restructuring - Additional Information (Details) - USD ($) | 12 Months Ended | 36 Months Ended
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2022
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 15,000,000 | $ 16,000,000 | $ 21,000,000 |
2020 Restructuring Plan |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges |  | 10,000,000 | 19,000,000 | $ 29,000,000
Other Restructuring And Restructuring-Related Costs |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 15,000,000 | $ 6,000,000 | $ 2,000,000 |
Project Phoenix |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 0 |  |  |
Project Phoenix | Minimum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Estimated aggregate restructuring charges | 100,000,000 |  |  | 100,000,000
Expected cash payments | 95,000,000 |  |  |
Project Phoenix | Maximum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Estimated aggregate restructuring charges | 130,000,000 |  |  | 130,000,000
Expected cash payments | 120,000,000 |  |  |
Project Phoenix | Employee severance payments and other termination benefits | Minimum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Estimated aggregate restructuring charges | 80,000,000 |  |  | 80,000,000
Project Phoenix | Employee severance payments and other termination benefits | Maximum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Estimated aggregate restructuring charges | 105,000,000 |  |  | 105,000,000
Project Phoenix | Office space reductions | Minimum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Estimated aggregate restructuring charges | 15,000,000 |  |  | 15,000,000
Project Phoenix | Office space reductions | Maximum |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Estimated aggregate restructuring charges | 20,000,000 |  |  | $ 20,000,000
Project Phoenix | Other charges |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 5,000,000 |  |  |

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