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v3.25.2

Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Mar. 31, 2025 | Dec. 31, 2024 | Mar. 31, 2024 | Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |  |
Equity, attributable to parent (loss) |  | $ 20,961 |  | $ 20,961 |  |  | $ 19,522 |  |
Defined Benefit Pension and Postretirement Items |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |  |
Equity, attributable to parent (loss) |  | (39) | $ (37) | (39) | $ (37) | $ (39) | (39) | $ (41) | $ (41)
Losses reclassified from net accumulated other comprehensive loss | [1] | 0 | 4 | 0 | 4 |  |  |  |
Net current period other comprehensive income (loss) |  | 0 | 4 | 0 | 4 |  |  |  |
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax |  | 0 | 0 | 0 | 0 |  |  |  |
Defined Benefit Pension and Postretirement Items | Interest Rate Swap |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |  |
Losses reclassified from net accumulated other comprehensive loss | [2] | 0 | 0 | 0 | 0 |  |  |  |
Total |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |  |
Equity, attributable to parent (loss) |  | (66) | (67) | (66) | (67) | (72) | (68) | (71) | (94)
Losses reclassified from net accumulated other comprehensive loss | [1] | 0 | 4 | 0 | 4 |  |  |  |
Net current period other comprehensive income (loss) |  | 6 | 4 | 2 | 27 |  |  |  |
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax |  | 5 | 0 | 0 | 22 |  |  |  |
Total | Interest Rate Swap |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |  |
Losses reclassified from net accumulated other comprehensive loss | [2] | 1 | 0 | 2 | 1 |  |  |  |
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |  |
Equity, attributable to parent (loss) |  | (27) | (30) | (27) | (30) | $ (33) | $ (29) | $ (30) | $ (53)
Losses reclassified from net accumulated other comprehensive loss | [1] | 0 | 0 | 0 | 0 |  |  |  |
Net current period other comprehensive income (loss) |  | 6 | 0 | 2 | 23 |  |  |  |
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax |  | 5 | 0 | 0 | 22 |  |  |  |
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent | Interest Rate Swap |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |  |  |  |  |  |
Losses reclassified from net accumulated other comprehensive loss | [2] | $ 1 | $ 0 | $ 2 | $ 1 |  |  |  |
[1] | Included in the computation of net periodic pension and postretirement benefit costs. See Note 9 for further information.
[2] | Included in interest charges.

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