Operations and Segmentation

6 Months Ended

Jun. 30, 2021

Operations and Segmentation [Abstract]

3. Operations and Segmentation

The Railroad, along with its subsidiaries and rail affiliates, is our one reportable operating segment. Although we provide and analyze revenue by three commodity groups, we treat the financial results of the Railroad as one segment due to the integrated nature of our rail network. Our operating revenues are primarily derived from contracts with customers for the transportation of freight from origin to destination.

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

Although our revenues are principally derived from customers domiciled in the U.S., the ultimate points of origin or destination for some products we transport are outside the U.S. Each of our commodity groups includes revenue from shipments to and from Mexico. Included in the above table are freight revenues from our Mexico business which amounted to $618 million and $389 million, respectively, for the three months ended June 30, 2021 and 2020, and $1.2 billion and $972 million, respectively, for the six months ended June 30, 2021 and 2020.