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Segmented and geographic information
12 Months Ended
Dec. 31, 2021
Segment Reporting [Abstract]  
Segmented and geographic information Segmented and geographic information
Operating segment
The Company operates in only one operating segment: rail transportation. Operating results by geographic areas, railway corridors, or other lower-level components or units of operation are not reviewed by the Company’s chief operating decision-maker to make decisions about the allocation of resources to, or the assessment of performance of, such geographic areas, corridors, components, or units of operation.

In the years ended December 31, 2021, 2020, and 2019, no one customer comprised more than 10% of total revenues and accounts receivable.
Geographic information
All of the Company's revenues and long-term assets disclosed in the table below are held within Canada and the United States.

(in millions of Canadian dollars)CanadaUnited StatesTotal
2021
Revenues$5,992 $2,003 $7,995 
Long-term assets excluding investment in Kansas City Southern, financial instruments, and pension assets14,922 7,274 22,196 
2020
Revenues5,829 1,881 7,710 
Long-term assets excluding financial instruments and pension assets14,258 7,165 21,423 
2019
Revenues5,675 2,117 7,792 
Long-term assets excluding financial instruments and pension assets13,131 7,020 20,151