XML 59 R39.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Leases (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Leases [Abstract] |
Schedule of Lease Related Assets and Liabilities | Operating lease amounts included on the Consolidated Balance Sheets are as follows:
|  | December 31,
|  | 2023 |  | 2022
|  | ($ in millions)
| Classification |  |  |
Assets |  |  |  |
Right-of-use (ROU) assets | Other assets | $ | 390 |  |  | $ | 407 |
Liabilities |  |  |  |
Current lease liabilities | Other current liabilities | $ | 105 |  |  | $ | 94 |
Non-current lease liabilities | Other liabilities | 287 |  |  | 316 |
Total lease liabilities |  | $ | 392 |  |  | $ | 410 |
Lease, Cost | The components of total lease expense, primarily included in “Purchased services and rents,” are as follows:
| 2023 |  | 2022 |  | 2021
| ($ in millions)
Operating lease expense | $ | 115 |  |  | $ | 101 |  |  | $ | 106 |
Variable lease expense | 84 |  |  | 55 |  |  | 44 |
Short-term lease expense | 15 |  |  | 18 |  |  | 9 |
Total lease expense | $ | 214 |  |  | $ | 174 |  |  | $ | 159 |
Other information related to operating leases is as follows:
| December 31,
| 2023 |  | 2022
Weighted-average remaining lease term (years) on operating leases | 6.12 |  | 6.67
Weighted-average discount rates on operating leases | 3.78 | % |  | 3.16 | %
Lessee, Operating Lease, Liability, Maturity | Future minimum lease payments under non-cancellable operating leases are as follows:
| December 31, 2023
| ($ in millions)
2024 | $ | 116 |
2025 | 105 |
2026 | 85 |
2027 | 42 |
2028 | 30 |
2029 and subsequent years | 66 |
Total lease payments | 444 |
Less: Interest | 52 |
Present value of lease liabilities | $ | 392 |
| December 31, 2022
| ($ in millions)
2023 | $ | 103 |
2024 | 95 |
2025 | 87 |
2026 | 69 |
2027 | 27 |
2028 and subsequent years | 81 |
Total lease payments | 462 |
Less: Interest | 52 |
Present value of lease liabilities | $ | 410 |

X
- Definition Assets And Liabilities, Lessee [Table Text Block] + References No definition available. + Details
Name: | nsc_AssetsAndLiabilitiesLesseeTableTextBlock
Namespace Prefix: | nsc_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
Name: | us-gaap_LeaseCostTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-6 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration