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Employee Benefit Plans | 3 Months Ended
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Mar. 31, 2024
Retirement Benefits [Abstract] |
EMPLOYEE BENEFIT PLANS | EMPLOYEE BENEFIT PLANS Defined Benefit Pension and Other Postretirement Benefit Plans. The Company's net periodic benefit cost includes the following components for the three months ended March 31 (in millions):
|  | Pension Benefits |  | Other Postretirement Benefits |  | Affected Line Item in the Statements of Consolidated Operations
|  | 2024 |  | 2023 |  | 2024 |  | 2023 |  |
Service cost |  | $ | 34 |  |  | $ | 31 |  |  | $ | 1 |  |  | $ | 1 |  |  | Salaries and related costs
Interest cost |  | 57 |  |  | 55 |  |  | 10 |  |  | 10 |  |  | Miscellaneous, net
Expected return on plan assets |  | (69) |  |  | (63) |  |  | — |  |  | — |  |  | Miscellaneous, net
Amortization of unrecognized (gain) loss |  | 5 |  |  | 2 |  |  | (7) |  |  | (9) |  |  | Miscellaneous, net
Amortization of prior service credit |  | — |  |  | — |  |  | (23) |  |  | (28) |  |  | Miscellaneous, net
Total |  | $ | 27 |  |  | $ | 25 |  |  | $ | (19) |  |  | $ | (26) |  |  |

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