Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Railway operating revenues	$ 2,993	$ 3,004
Railway operating expenses
Compensation and benefits	739	736
Purchased services and rents	498	528
Fuel	244	284
Depreciation	346	337
Materials and other	205	215
Restructuring And Other Charges	0	99
Eastern Ohio incident	(185)
Eastern Ohio incident		592
Total railway operating expenses	1,847	2,791
Income from railway operations	1,146	213
Other income – net	31	18
Interest expense on debt	199	201
Income before income taxes	978	30
Income taxes	228	(23)
Net income	$ 750	$ 53
Earnings per share
Basic (in dollars per share)	$ 3.31	$ 0.23
Diluted (in dollars per share)	$ 3.31	$ 0.23

Materials And Other Expense (Income)

No definition available.

Name:	nsc_MaterialsAndOtherExpenseIncome
Namespace Prefix:	nsc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of expense for contract services provided to the Company and rent paid for freight cars owned by other railroads or private companies net of rents received, including lease expenses, primarily for locomotives, railcars, containers, and trailers.

+ References

No definition available.