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Stock-Related Benefits Plans - Narrative (Details) $ / shares in Units, $ in Millions |  |  |  |  |  | 6 Months Ended
--- | --- | --- | --- | --- | --- | ---
Jul. 11, 2024 | Jun. 27, 2024 | Jun. 21, 2024 installment shares | Apr. 25, 2024 installment shares | Mar. 06, 2024 installment shares | Jun. 30, 2024 USD ($) $ / shares shares | Jun. 30, 2023 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Non-vested balance (in shares) |  |  |  |  |  | 14,992,035 |
Unrecognized stock-based compensation cost for options | $ |  |  |  |  |  | $ 58 |
Granted (in shares) |  |  | 1,000,000 | 3,000,000 | 6,333,333 | 10,333,000 |
Quarterly installments | installment |  |  | 3 | 3 |  |  |
Vesting period |  |  | 3 years |  |  | 3 years |
Forfeited (in shares) |  |  |  |  |  | 0 |
Reverse stock split |  | 0.3333 |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Reverse stock split | 0.3333 |  |  |  |  |  |
Share-based payment arrangement, tranche one |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  | 1,333,333 |  |
Awards vested (as a percent) |  |  |  |  |  | 33.33% |
Share-based payment arrangement, tranche two |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  | 5,000,000 |  |
Quarterly installments | installment |  |  |  |  | 12 |  |
Awards vested (as a percent) |  |  |  |  |  | 33.33% |
Share-based payment arrangement, tranche three |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Awards vested (as a percent) |  |  |  |  |  | 33.33% |
Restricted Stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  |  | 728,711 |
Granted (in usd per share) | $ / shares |  |  |  |  |  | $ 8.70 |
Share-based compensation expense | $ |  |  |  |  |  | $ 22 | $ 18
Unrecognized stock-based compensation cost for options | $ |  |  |  |  |  | $ 85 |
Period to be recognized |  |  |  |  |  | 2 years 1 month 6 days |

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