- DefinitionTabular disclosure of information pertaining to unsecured, fixed-rate debt securities under shelf registration.
| Name: |
unp_UnsecuredFixedRateDebtSecuritiesIssuedUnderCurrentShelfRegistrationTableTextBlock |
| Namespace Prefix: |
unp_ |
| Data Type: |
dtr-types:textBlockItemType |
| Balance Type: |
na |
| Period Type: |
duration |