XML 37 R27.htm IDEA: XBRL DOCUMENT
v3.21.2

Operations and Segmentation (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2021
Operations and Segmentation [Abstract] |
Freight Revenue By Commodity Group | The following table represents a disaggregation of our freight and other revenues:
| Three Months Ended |  | Six Months Ended
| June 30, |  | June 30,
Millions | 2021 | 2020 |  | 2021 | 2020
Bulk | $ | 1,648 | $ | 1,386 |  | $ | 3,160 | $ | 2,920
Industrial |  | 1,859 |  | 1,500 |  |  | 3,515 |  | 3,394
Premium |  | 1,625 |  | 1,086 |  |  | 3,106 |  | 2,538
Total freight revenues | $ | 5,132 | $ | 3,972 |  | $ | 9,781 | $ | 8,852
Other subsidiary revenues |  | 180 |  | 150 |  |  | 357 |  | 364
Accessorial revenues |  | 176 |  | 103 |  |  | 337 |  | 220
Other |  | 16 |  | 19 |  |  | 30 |  | 37
Total operating revenues | $ | 5,504 | $ | 4,244 |  | $ | 10,505 | $ | 9,473

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

X
- Definition This element is used to capture the breakout of our one segment into our six commodity groups. + References No definition available. + Details
Name: | unp_ScheduleOfFreightRevenueTableTextBlock
Namespace Prefix: | unp_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration