XML 70 R46.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Leases (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
Leases [Abstract] |
Schedule of Assets And Liabilities, Leases | The following are additional details related to our lease portfolio:
Millions | Classification | Dec 31, 2024 | Dec 31, 2023
Assets |  |  |
Operating leases | Operating lease assets | $ | 1,297 |  | $ | 1,643 |
Finance leases | Properties, net [a] | 172 |  | 244 |
Total leased assets |  | $ | 1,469 |  | $ | 1,887 |
Liabilities |  |  |
Current |  |  |
Operating | Accounts payable and other current liabilities | $ | 346 |  | $ | 355 |
Finance | Debt due within one year | 37 |  | 49 |
Noncurrent |  |  |
Operating | Operating lease liabilities | 925 |  | 1,245 |
Finance | Debt due after one year | 72 |  | 109 |
Total lease liabilities |  | $ | 1,380 |  | $ | 1,758 |
[a]Finance lease assets are recorded net of accumulated amortization of $472 million and $497 million as of December 31, 2024 and 2023, respectively.
Schedule of Lease, Cost | The lease cost components are classified as follows:
Millions | Dec 31, 2024 | Dec 31, 2023
Operating lease cost [a] | $ | 340 |  | $ | 369 |
Short-term lease cost | 24 |  | 24 |
Variable lease cost | 37 |  | 41 |
Finance lease cost |  |
Amortization of leased assets [b] | 31 |  | 38 |
Interest on lease liabilities [c] | 5 |  | 8 |
Net lease cost | $ | 437 |  | $ | 480 |
[a]Operating lease cost is primarily reported in equipment and other rents in our Consolidated Statements of Income. [b]Amortization of leased assets is reported in depreciation in our Consolidated Statements of Income. [c]Interest on lease liabilities is reported in interest expense in our Consolidated Statements of Income. The following table presents other information related to our operating and finance leases for the years ended December 31:
Millions | 2024 | 2023
Cash paid for amounts included in the measurement of lease liabilities |  |
Operating cash flows from operating leases | $ | 319 |  | $ | 323 |
Investing cash flows from operating leases | 32 |  | 33 |
Operating cash flows from finance leases | 6 |  | 9 |
Financing cash flows from finance leases | 47 |  | 65 |
Leased assets obtained in exchange for operating lease liabilities | $ | 119 |  | $ | 241 |
Schedule of Aggregate Operating Lease Maturities | The following table presents aggregate lease maturities as of December 31, 2024:
Millions | Operating Leases | Finance Leases | Total
2025 | $ | 352 |  | $ | 42 |  | $ | 394 |
2026 | 281 |  | 35 |  | 316 |
2027 | 227 |  | 30 |  | 257 |
2028 | 200 |  | 11 |  | 211 |
2029 | 128 |  | - |  | 128 |
After 2029 | 213 |  | - |  | 213 |
Total lease payments | $ | 1,401 |  | $ | 118 |  | $ | 1,519 |
Less: Interest | 130 |  | 9 |  | 139 |
Present value of lease liabilities | $ | 1,271 |  | $ | 109 |  | $ | 1,380 |
Schedule of Aggregate Finance Lease Maturities | The following table presents aggregate lease maturities as of December 31, 2024:
Millions | Operating Leases | Finance Leases | Total
2025 | $ | 352 |  | $ | 42 |  | $ | 394 |
2026 | 281 |  | 35 |  | 316 |
2027 | 227 |  | 30 |  | 257 |
2028 | 200 |  | 11 |  | 211 |
2029 | 128 |  | - |  | 128 |
After 2029 | 213 |  | - |  | 213 |
Total lease payments | $ | 1,401 |  | $ | 118 |  | $ | 1,519 |
Less: Interest | 130 |  | 9 |  | 139 |
Present value of lease liabilities | $ | 1,271 |  | $ | 109 |  | $ | 1,380 |
Schedule of Weighted Average Lease Term and Discount Rate | The following table presents the weighted average remaining lease term and discount rate:
| Dec 31, 2024
Weighted-average remaining lease term (years) |
Operating leases | 5.4
Finance leases | 2.8
Weighted-average discount rate (%) |
Operating leases | 3.8 |
Finance leases | 4.4 |

X
- Definition Schedule of Assets And Liabilities, Leases + References No definition available. + Details
Name: | unp_ScheduleOfAssetsAndLiabilitiesLeasesTableTextBlock
Namespace Prefix: | unp_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of weighted average remaining lease term and discount rate. + References No definition available. + Details
Name: | unp_SupplementalLeaseInformationWeightedAverageRemainingLeaseTermAndDiscountRateTableTextBlock
Namespace Prefix: | unp_
Data Type: | dtr-types1:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance 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_FinanceLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types: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