XML 147 R49.htm IDEA: XBRL DOCUMENT
v3.24.3

Note 6 - Other Income (Details Textual) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Profit (Loss) from Real Estate Operations | [1] | $ 70 | $ 90 | $ 192 | $ 335
Real Estate Transaction [Member] |  |  |  |  |
Profit (Loss) from Real Estate Operations |  |  |  |  | $ 107
[1] | The nine months ended September 30, 2023, includes a one-time $107 million transaction.

X
- Definition The net cost of operation of other real estate (including provisions for real estate losses, rental income, and gains and losses on sales of real estate). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(14)(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
Name: | us-gaap_ProfitLossFromRealEstateOperations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=unp_RealEstateTransactionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |