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Employee Incentive Plans (Tables) | 6 Months Ended
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Jun. 30, 2022
Employee Incentive Plans [Abstract] |
Share Grants And Fair Value |
|  |  |  | Fair Value at
|  |  |  | Date of Grant
|  | Units |  | ($ millions)
Prior periods (since inception) |  | 25,643,893 |  | $ | 623
December 31, 2019 |  | 1,374,217 |  |  | 65
December 31, 2020 |  | 1,229,177 |  |  | 71
December 31, 2021 |  | 1,084,773 | 1 |  | 84
April 25, 2022 |  | 179,704 | 2 |  | 12
|  | 29,511,764 |  | $ | 855
______________________________ (1)Stock Incentive Plan number of granted restricted stock units related to 2021 was adjusted by 7,725 additional restricted stock units during the six months ended June 30, 2022. (2)On April 25, 2022, the Company awarded a special grant of restricted stock units to employees.
2007 Stock Incentive Plan, ROI Summary |
|  | Stock
|  | Incentive Plan
|  | Units
Balance, December 31, 20211 |  | 4,783,810
Granted2 |  | 179,704
Canceled |  | (137,688)
Distributed |  | (1,271,794)
Balance, June 30, 2022 |  | 3,554,032
_____________________________ (1)Stock Incentive Plan number of granted restricted stock units related to 2021 was adjusted by 7,725 additional restricted stock units during the six months ended June 30, 2022. (2)On April 25, 2022, the Company awarded a special grant of restricted stock units to employees.

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