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Postretirement Benefit Obligations (Tables) | 6 Months Ended
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Jun. 30, 2025
Postemployment Benefits [Abstract] |
Schedule of Net Periodic Benefit Costs | The components of net periodic benefit costs for the periods were:
|  | Three Months Ended June 30, |  | Six Months Ended June 30, |  |  |
|  | 2025 |  | 2024 |  | 2025 |  | 2024 |  |  |
Postretirement benefits service cost (a) |  | $ | — |  |  | $ | 1 |  |  | $ | 1 |  |  | $ | 2 |  |  |  |
Postretirement benefit (gain) loss |  |  |  |  |  |  |  |  |  |  |
Interest cost |  | $ | 17 |  |  | $ | 17 |  |  | 34 |  |  | 33 |  |  |  |
Expected return on plan assets |  | (18) |  |  | (17) |  |  | (37) |  |  | (35) |  |  |  |
Amortization of: |  |  |  |  |  |  |  |  |  |  |
Postretirement prior service cost (credit) |  | (1) |  |  | — |  |  | (2) |  |  | — |  |  |  |
Postretirement benefit (gain) loss, net (b) |  | $ | (2) |  |  | $ | — |  |  | (5) |  |  | (2) |  |  |  |
Net periodic defined benefit cost (credit) |  | $ | (2) |  |  | $ | 1 |  |  | $ | (4) |  |  | $ | — |  |  |  |
_____________ (a)Activity presented as “Operation, maintenance and development” on the Consolidated Statements of Operations. (b)Activity presented as “Other non-operating income (expense), net” on the Consolidated Statements of Operations.

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (q) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-5 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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