Consolidated Statements of Income (Unaudited) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Railway operating revenues	$ 3,110	$ 3,044	$ 6,103	$ 6,048
Railway operating expenses
Compensation and benefits	692	700	1,431	1,436
Purchased services and rents	520	516	1,018	1,044
Fuel	219	257	463	541
Depreciation	346	335	692	672
Materials and other	195	173	400	388
Restructuring and other charges	10	(3)	10	96
Eastern Ohio incident	(47)	(65)	(232)
Eastern Ohio incident				527
Total railway operating expenses	1,935	1,913	3,782	4,704
Income from railway operations	1,175	1,131	2,321	1,344
Other income – net	24	17	55	35
Interest expense on debt	201	204	400	405
Income before income taxes	998	944	1,976	974
Income taxes	230	207	458	184
Net income	$ 768	$ 737	$ 1,518	$ 790
Earnings per share
Basic (in dollars per share)	$ 3.41	$ 3.26	$ 6.72	$ 3.49
Diluted (in dollars per share)	$ 3.41	$ 3.25	$ 6.72	$ 3.48

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.