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Share-Based Compensation - Narrative (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Feb. 09, 2021
Restricted Stock Units (RSUs) |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Intrinsic value of restricted stock, vested | $ 24 |
Unrecognized compensation expense | $ 54 |
Share-based compensation expense, weighted average period for recognition | 2 years 4 months 2 days |
Restricted Stock Units (RSUs) | Employees |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share-based compensation, award vesting period | 3 years |
Restricted Stock Units (RSUs) | Directors |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share-based compensation, award vesting period | 1 year |
Performance Share Units (PSUs) |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Unrecognized compensation expense | $ 17 |
Share-based compensation expense, weighted average period for recognition | 1 year 10 months 13 days |
Performance Share Units (PSUs) | Minimum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total shareholder return and relative total shareholder return, percent of payout of target units | 0.00% |
Performance Share Units (PSUs) | Maximum |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Total shareholder return and relative total shareholder return, percent of payout of target units | 200.00% |
Performance Share Units (PSUs) | Management |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Share-based compensation, award vesting period | 3 years |
2021 Long Term Incentive Plan |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Common stock, reserved for future issuance (in shares) |  | 6,800,000

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