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v3.23.2

PENSION AND OTHER POST-EMPLOYMENT BENEFITS (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Pension and OPEB prior service costs amortized out of AOCI |  |  |  | $ 1
Pension |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Service costs | $ 35 | $ 46 | $ 69 | 92
Interest costs | 107 | 68 | 216 | 136
Expected return on plan assets | (142) | (164) | (270) | (328)
Amortization of prior service costs (credits) | 1 | 0 | 1 | 1
Special termination benefits | 5 | 0 | 5 | 0
Pension and OPEB mark-to-market adjustment | (59) | 0 | (59) | 0
Net periodic benefit credits | (53) | (50) | (38) | (99)
Net periodic benefit credits, net of amounts capitalized | (70) | (72) | (73) | (141)
OPEB |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Service costs | 0 | 1 | 1 | 2
Interest costs | 6 | 2 | 11 | 5
Expected return on plan assets | (8) | (10) | (16) | (20)
Amortization of prior service costs (credits) | (2) | (2) | (4) | (5)
Special termination benefits | 2 | 0 | 2 | 0
Pension and OPEB mark-to-market adjustment | 0 | 0 | 0 | 0
Net periodic benefit credits | (2) | (9) | (6) | (18)
Net periodic benefit credits, net of amounts capitalized | $ (3) | $ (10) | $ (7) | $ (19)

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