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Employee Incentive Plans (Tables) | 3 Months Ended
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Mar. 31, 2023
Employee Incentive Plans [Abstract] |
Share Grants And Fair Value |
|  |  |  | Fair Value at
|  |  |  | Date of Grant
|  | Units |  | ($ millions)
Prior periods (since inception) |  | 27,018,109 |  | $ | 687
December 31, 2020 |  | 1,229,177 |  |  | 71
December 31, 2021 |  | 1,084,773 |  |  | 84
April 25, 2022 |  | 180,889 | 1 |  | 12
December 31, 2022 |  | 1,247,765 | 2 |  | 91
|  | 30,760,713 |  | $ | 945
______________________________ (1)April 25, 2022, the Company awarded a special grant of restricted stock units to employees. (2)Stock Incentive Plan number of granted restricted stock units related to 2022 was adjusted by 3,382 additional restricted stock units during the three months ended March 31, 2023.
2007 Stock Incentive Plan, ROI Summary |
|  | Stock
|  | Incentive Plan
|  | Units
Balance, December 31, 2022 1 |  | 4,756,422
Granted |  | —
Canceled 2 |  | 51,500
Distributed |  | (71,562)
Balance, March 31, 2023 |  | 4,736,360
_____________________________ (1)Stock Incentive Plan number of granted restricted stock units related to 2022 was adjusted by 3,382 additional restricted stock units during the three months ended March 31, 2023. (2)During the three months ended March 31, 2023, the Company reinstated 71,562 previously canceled restricted stock units.

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