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Income Taxes (Components Of Net Deferred Income Tax Liability (Asset) (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Deferred income tax liabilities: |  |
Property, plant and equipment basis differences | $ 1,753 | $ 1,342
Intangibles | 94 | 184
Deferred revenue/expense | (7) | (8)
Other, net | 48 | 45
Gross deferred income tax liability | 1,888 | 1,563
Deferred income tax assets: |  |
Pension liability | 26 | 48
Tax operating loss carryforward | 705 | 476
Employee benefits | 75 | 83
Interest expense deduction limitation carryforward | 468 | 260
Accrued expenses | 84 | 80
Lease obligations | 131 | 111
Tax credit | 45 | 32
Allowance for doubtful accounts | 16 | 11
Other, net | (28) | (1)
Gross deferred income tax asset | 1,522 | 1,100
Less: Valuation allowance | (243) | (180)
Net deferred income tax asset | 1,279 | 920
Net deferred income tax liability | $ 609 | $ 643

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