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Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Deferred Taxes |  |  |  |
Balance beginning | $ (337) | $ (397) | $ (347) | $ (416)
Changes in value | (2) | (3) | (3) | 1
Amounts reclassified to earnings | 5 | 7 | 16 | 22
Balance ending | (334) | (393) | (334) | (393)
Total |  |  |  |
Balance beginning | 10,526 | 7,705 | 9,324 | 6,896
Changes in value | 8 | 14 | 12 | (3)
Amounts reclassified to earnings | (20) | (26) | (59) | (81)
Balance ending | 11,437 | 8,853 | 11,437 | 8,853
Accumulated Other Comprehensive Income (Loss) |  |  |  |
Total |  |  |  |
Balance beginning | (97) | 103 | (62) | 175
Balance ending | (109) | 91 | (109) | 91
Deferred income tax expense | 285 | 285 | 285 | 285
Pension and Other Postretirement Liabilities |  |  |  |
Before Tax |  |  |  |
Balance beginning | 245 | 539 | 289 | 626
Changes in value | (5) | 7 | 1 | (10)
Amounts reclassified to earnings | (25) | (33) | (75) | (103)
Balance ending | 215 | 513 | 215 | 513
Investments and Other |  |  |  |
Before Tax |  |  |  |
Balance beginning | (5) | (39) | (4) | (35)
Changes in value | 15 | 10 | 14 | 6
Amounts reclassified to earnings | 0 | 0 | 0 | 0
Balance ending | $ 10 | $ (29) | $ 10 | $ (29)

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