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Note 1 - Nature of Operations (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Disaggregation of Revenue [Table Text Block]

Millions		2022				2021				2020
Bulk		$	7,537			$	6,656			$	5,960
Industrial			8,205				7,323				6,622
Premium			7,417				6,265				5,669
Total freight revenues		$	23,159			$	20,244			$	18,251
Other subsidiary revenues			884				741				743
Accessorial revenues			779				752				473
Other			53				67				66
Total operating revenues		$	24,875			$	21,804			$	19,533

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045

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- References

No definition available.

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