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Share-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2025
Share-Based Payment Arrangement [Abstract] |
Summary of Unit Activity | The following table summarizes the RSU and PRSU activity during the nine months ended September 30, 2025:
|  | RSUs |  | Weighted Average Grant Date Fair Value Per Unit |  | PRSUs(1) |  | Weighted Average Grant Date Fair Value Per Unit
Balance as of December 31, 2024 |  | 7,325,106 |  | $ | 8.67 |  |  | 10,878,456 |  | $ | 8.71 |
Granted |  | 6,002,760 |  | 5.76 |  |  | 4,839,204 |  | 6.09 |
Vested |  | (2,998,286) |  | 8.57 |  |  | (3,256,692) |  | 8.83 |
Forfeited |  | (2,039,971) |  | 8.18 |  |  | (11,250,010) |  | 7.70 |
Balance as of September 30, 2025 |  | 8,289,609 |  | $ | 6.70 |  |  | 1,210,958 |  | $ | 7.15 |
_______________________________________________________ (1)The number of PRSUs presented are based on actual or expected achievement of the respective performance goals as of the end of the period.
Schedule of Share-Based Compensation Costs Related to RSUs and PRSUs | Total share-based compensation expense related to the RSUs and PRSUs are recorded in the Condensed Consolidated Statements of Comprehensive Income (Loss) as follows (in millions):
| Three Months Ended September 30, |  | Nine Months Ended September 30, |  |
| 2025 |  | 2024 |  | 2025 |  | 2024 |  |
Cost of services, exclusive of depreciation and amortization | $ | — |  |  | $ | 3 |  |  | $ | 5 |  |  | $ | 11 |  |  |
Selling, general and administrative | 3 |  |  | 8 |  |  | 9 |  |  | 48 |  |  |
Total share-based compensation expense | $ | 3 |  |  | $ | 11 |  |  | $ | 14 |  |  | $ | 59 |  |  |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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