Legal Proceedings and Other Contingencies Legal Proceedings and Other Contingencies (Details) - Almasy, et al. v. Norfolk Southern Corp $ in Millions		9 Months Ended
	Feb. 03, 2025 plaintiff defendant	Sep. 30, 2025 USD ($) individual_resident
Other Commitments [Line Items]
Number of individual residents | individual_resident		40
Litigation Settlement, Amount Awarded to Other Party | $		$ 600.0
Loss Contingency, Number of Plaintiffs	750
Loss Contingency, Number Of Plaintiffs Opted Out Of Prior Settlement Agreements	184
Loss Contingency, Number of Defendants | defendant	60
Loss Contingency, Number Of Plaintiffs Opted Into Prior Settlement Agreements	550