Operations and Segmentation

9 Months Ended

Sep. 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				Nine Months Ended
	September 30,				September 30,
Millions	2021		2020		2021		2020
Bulk	$	1,687	$	1,478	$	4,847	$	4,398
Industrial		1,911		1,567		5,426		4,961
Premium		1,568		1,551		4,674		4,089
Total freight revenues	$	5,166	$	4,596	$	14,947	$	13,448
Other subsidiary revenues		182		193		539		557
Accessorial revenues		198		114		535		334
Other		20		16		50		53
Total operating revenues	$	5,566	$	4,919	$	16,071	$	14,392

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 $592 million and $556 million, respectively, for the three months ended September 30, 2021 and 2020, and $1.8 billion and $1.5 billion, respectively, for the nine months ended September 30, 2021 and 2020.