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Long term retention program ("LTRP") | 6 Months Ended
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Jun. 30, 2023
Retirement Benefits [Abstract] |
Long term retention program ("LTRP") | Long term retention program (“LTRP”) The following table summarizes the long term retention program accrued compensation expense for the six and three-month periods ended June 30, 2023 and 2022, which are payable in cash according to the decisions made by the Board of Directors (the “Board”):
| Six Months Ended June 30, |  | Three Months Ended June 30,
| 2023 |  | 2022 |  | 2023 |  | 2022
| (In millions) |  | (In millions)
LTRP 2017 | $ | — |  |  | $ | (4) |  |  | $ | — |  |  | $ | (3) |
LTRP 2018 | 2 |  |  | (3) |  |  | — |  |  | (3) |
LTRP 2019 | 9 |  |  | 7 |  |  | 4 |  |  | 1 |
LTRP 2020 | 10 |  |  | 9 |  |  | 4 |  |  | 2 |
LTRP 2021 | 12 |  |  | 11 |  |  | 5 |  |  | 3 |
LTRP 2022 | 22 |  |  | 15 |  |  | 9 |  |  | 5 |
LTRP 2023 | 28 |  |  | — |  |  | 14 |  |  | — |
Total LTRP | $ | 83 |  |  | $ | 35 |  |  | $ | 36 |  |  | $ | 5 |

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