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EMPLOYEE BENEFIT PLANS (Components of Net Periodic Benefit Cost) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Pension Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Service cost for benefits earned | $ 396 | $ 379 | $ 575
Interest cost | 916 | 913 | 692
Expected return on plan assets | (1,014) | (981) | (1,189)
Amortization of prior service cost | (3) | (4) | (4)
Amortization of net actuarial gain (loss) | 1 | 1 | 2
Net periodic benefit cost | 296 | 308 | 76
Less: transfer to regulatory account | 39 | 25 | 254
Total expense recognized | 335 | 333 | 330
PBOP Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Service cost for benefits earned | 41 | 38 | 62
Interest cost | 71 | 73 | 53
Expected return on plan assets | (139) | (132) | (130)
Amortization of prior service cost | 3 | 3 | 7
Amortization of net actuarial gain (loss) | (23) | (19) | (40)
Special termination benefits | 0 | 0 | 22
Net periodic benefit cost | $ (47) | $ (37) | $ (26)

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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480535/715-20-45-3A Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-6 + Details
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