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Commitments and Contingencies - Eastern Ohio Incident (Details) $ in Millions |  |  |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
May 23, 2024 USD ($) | Apr. 26, 2024 USD ($) | Aug. 22, 2023 schoolDistrict | Dec. 31, 2024 USD ($) complaint mi | Jun. 25, 2024 safetyRecommendation | Dec. 31, 2023 USD ($) | Feb. 03, 2023 railcar
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Settlement payment |  |  |  | $ 315 |  |  |
Eastern Ohio Incident |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Litigation settlement, non-environmental legal actions, mile radius of all class action claims | mi |  |  |  | 20 |  |  |
Litigation settlement, non-environmental legal actions, mile radius of personal injury claims | mi |  |  |  | 10 |  |  |
Oversight Costs | Eastern Ohio Incident | Pending Litigation |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Litigation settlement, amount awarded to other party | $ 57 |  |  |  |  |  |
Civil Penalty | Eastern Ohio Incident | Pending Litigation |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Litigation settlement, amount awarded to other party | $ 15 |  |  |  |  |  |
Eastern Ohio Incident |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of railcars derailed | railcar |  |  |  |  |  |  | 38
Number of non-company-owned tank cars contained hazardous materials | railcar |  |  |  |  |  |  | 11
Number of tank cars with risk of catastrophic explosion | railcar |  |  |  |  |  |  | 5
Deferred tax asset, expenses deductible for tax purposed in future periods or offset with insurance recoveries |  |  |  | $ 211 |  | $ 249 |
Litigation settlement, amount awarded to other party |  | $ 600 |  |  |  |  |
Number of school districts as plaintiffs | schoolDistrict |  |  | 6 |  |  |  |
Estimated litigation liability |  |  |  | $ 369 |  | $ 82 |
Loss contingency, number of pending claims | complaint |  |  |  | 6 |  |  |
Eastern Ohio Incident | NTSB |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of safety recommendations issued | safetyRecommendation |  |  |  |  | 30 |  |
Eastern Ohio Incident | NTSB | Norfolk Southern |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of safety recommendations issued | safetyRecommendation |  |  |  |  | 4 |  |
Eastern Ohio Incident | Eastern Ohio Incident | Pending Litigation | Minimum |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Duration for additional relief | 5 years |  |  |  |  |  |
Eastern Ohio Incident | Eastern Ohio Incident | Pending Litigation | Maximum |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Duration for additional relief | 20 years |  |  |  |  |  |

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