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Employee Incentive Plans (Share Grants And Fair Value) (Details) - USD ($) $ in Millions |  | 12 Months Ended | 152 Months Ended | 188 Months Ended
--- | --- | --- | --- | ---
Apr. 25, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2022
Employee Incentive Plans [Abstract] |  |  |  |  |  |  |  |
Shares granted | 180,889 | [1] | 1,244,383 | 1,084,773 | [2] | 1,229,177 | 27,018,110 |
Fair Value - Date of Grant | $ 12 |  | $ 91 | $ 84 |  | $ 71 | $ 687 | $ 91
Shares Granted IPO to Date |  |  |  |  |  |  |  | 30,757,332
Fair Value - Date of Grant IPO to Date |  |  |  |  |  |  |  | $ 945
Stock Incentive Plan Granted Shares Adjustment |  |  | 7,725 | 7,725 |  |  |  |
[1] | On 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 2021 was adjusted by 7,725 additional restricted stock units during the year ended December 31, 2022.

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- Definition Fair Value of all shares granted under the 2007 Stock Incentive Plan from the IPO to date. + References No definition available. + Details
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