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Stock-Based Compensation and Stockholder's Equity (Tables) | 12 Months Ended
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Dec. 31, 2024
Share-Based Payment Arrangement, Noncash Expense [Abstract] |
Summary of RSU Activity Including Performance Awards and Converted Isle Awards | A summary of the RSUs activity for the year ended December 31, 2024 is presented in the following table:
| Units |  | Weighted Average Grant Date Fair Value (a)
Unvested outstanding as of December 31, 2023 | 1,922,419 |  |  | $ | 60.11 |
Granted (b) | 2,020,005 |  |  | 43.77 |
Vested | (1,055,671) |  |  | 62.64 |
Forfeited | (217,942) |  |  | 49.06 |
Unvested outstanding as of December 31, 2024 | 2,668,811 |  |  | 47.64 |
____________________ (a)Represents the weighted-average grant date fair value of RSUs, which is the share price of our common stock on the grant date. (b)Included are 45,800 RSUs granted to non-employee members of the Board during the year ended December 31, 2024. A summary of the PSUs activity for the year ended December 31, 2024 is presented in the following table:
| Units |  | Weighted Average Grant Date Fair Value (a)
Unvested outstanding as of December 31, 2023 | 328,230 |  |  | $ | 46.88 |
Granted | 161,688 |  |  | 33.42 |
Performance Adjustment | 27,314 |  |  |
Vested | (99,377) |  |  | 41.66 |
Forfeited | (20,699) |  |  | 39.86 |
Unvested outstanding as of December 31, 2024 | 397,156 |  |  | 33.42 |
____________________ (a)This represents the weighted-average grant date fair value for PSUs where the grant date has been achieved or the price of our common stock as of the balance sheet date for PSUs where a grant date has not been achieved.
Share-based Payment Arrangement, Activity | A summary of the MSUs activity for the year ended December 31, 2024 is presented in the following table:
| Units |  | Weighted Average Grant Date Fair Value (a)
Unvested outstanding as of December 31, 2023 | 872,019 |  |  | $ | 85.11 |
Granted | 435,536 |  |  | 58.56 |
Performance Adjustment | (154,420) |  |  |
Vested | (18,713) |  |  | 63.99 |
Forfeited | (38,318) |  |  | 77.95 |
Unvested outstanding as of December 31, 2024 | 1,096,104 |  |  | 73.15 |
____________________ (a)Represents the grant date fair value determined using a Monte Carlo simulation model.
Schedule of Share-based Compensation, Stock Options Activity |
Stock Option Exercises |  |  |  |  |
| Years Ended December 31,
(Dollars in millions) | 2024 |  | 2023 |  | 2022
Option Exercises: |  |  |  |  |
Number of options exercised | — |  |  | 88 |  |  | 43,384 |
Cash received for options exercised | $ | — |  |  | $ | — |  |  | $ | 1 |
Aggregate intrinsic value of options exercised | $ | — |  |  | $ | — |  |  | $ | 2 |
Schedule of Changes in Accumulated Other Comprehensive Income (Loss) by Component | The changes in AOCI by component, net of tax, for the periods through December 31, 2024 and 2023 are shown below.
Changes in AOCI by component, net of tax |  |  |  |  |  |  |
(In millions) | Unrealized Net Gains on Derivative Instruments |  | Foreign Currency Translation Adjustments |  | Other |  | Total
Balances as of December 31, 2022 | $ | 94 |  |  | $ | (1) |  |  | $ | (1) |  |  | $ | 92 |
Other comprehensive income before reclassifications | — |  |  | 1 |  |  | 4 |  |  | 5 |
Total other comprehensive income, net of tax | — |  |  | 1 |  |  | 4 |  |  | 5 |
Balances as of December 31, 2023 | $ | 94 |  |  | $ | — |  |  | $ | 3 |  |  | $ | 97 |
Other comprehensive loss before reclassifications | — |  |  | — |  |  | (1) |  |  | (1) |
Total other comprehensive loss, net of tax | — |  |  | — |  |  | (1) |  |  | (1) |
Balances as of December 31, 2024 | $ | 94 |  |  | $ | — |  |  | $ | 2 |  |  | $ | 96 |

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