XML 39 R28.htm IDEA: XBRL DOCUMENT
v3.24.3

Stock-Based Compensation (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2024
Share-Based Payment Arrangement [Abstract] |
Schedule of Stock-Based Compensation Expense and Related Tax Benefits |
|  | Third Quarter |  | First Nine Months
|  | 2024 |  | 2023 |  | 2024 |  | 2023
|  | ($ in millions)
Stock-based compensation expense |  | $ | (5) |  |  | $ | 10 |  |  | $ | 27 |  |  | $ | 32 |
Total tax benefit (expense) |  | (1) |  |  | 2 |  |  | 7 |  |  | 11 |
Schedule of Long-Term Incentive Plan Awards | During 2024, we granted stock options, restricted stock units (RSUs) and performance share units (PSUs) pursuant to the Long-Term Incentive Plan (LTIP), as follows:
|  | Third Quarter |  | First Nine Months
|  | Granted |  | Weighted-Average Grant-Date Fair Value |  | Granted |  | Weighted-Average Grant-Date Fair Value
Stock options |  | 28,510 |  |  | $ | 70.14 |  |  | 100,940 |  |  | $ | 77.27 |
RSUs |  | 19,873 |  |  | 247.86 |  |  | 246,382 |  |  | 235.68 |
PSUs |  | 850 |  |  | 255.22 |  |  | 58,870 |  |  | 258.97 |
Summary of Stock Options, Restricted Stock Units, and Performance Share Units |
|  | Third Quarter |  | First Nine Months
|  | 2024 |  | 2023 |  | 2024 |  | 2023
|  | ($ in millions)
Options exercised |  | 142,833 |  | 9,934 |  |  | 257,807 |  |  | 87,206 |
Cash received upon exercise |  | $ | 20 |  |  | $ | 1 |  |  | $ | 31 |  |  | $ | 7 |
Related tax benefits realized |  | 3 |  |  | — |  |  | 6 |  |  | 3 |
|  | Third Quarter |  | First Nine Months
|  | 2024 |  | 2023 |  | 2024 |  | 2023
|  | ($ in millions)
RSUs vested |  | 1,836 |  |  | 2,587 |  |  | 170,981 |  |  | 155,617 |
Common Stock issued net of tax withholding |  | 1,391 |  |  | 1,734 |  |  | 118,657 |  |  | 109,153 |
Related tax benefits realized |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 1 |
|  | First Nine Months
|  | 2024 |  | 2023
|  | ($ in millions)
PSUs earned |  | 41,580 |  |  | 58,599 |
Common Stock issued net of tax withholding |  | 26,056 |  |  | 40,255 |
Related tax benefits realized |  | $ | — |  |  | $ | — |

X
- Definition Share-based compensation arrangement by share-based payment award, options, grants in period, weighted average exercise price, table [Table Text Block] + References No definition available. + Details
Name: | nsc_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantsInPeriodWeightedAverageExercisePriceTableTableTextBlock
Namespace Prefix: | nsc_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration