Revenues (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue

The following table provides disaggregated information for revenues:

In millions	Year ended December 31,	2020		2019		2018
Freight revenues
Petroleum and chemicals		$	2,631	$	3,052	$	2,660
Metals and minerals		1,409		1,643		1,689
Forest products		1,700		1,808		1,886
Coal		527		658		661
Grain and fertilizers		2,609		2,392		2,357
Intermodal		3,751		3,787		3,465
Automotive		591		858		830
Total freight revenues		13,218		14,198		13,548
Other revenues		601		719		773
Total revenues (1) (2)		$	13,819	$	14,917	$	14,321

(1)As at December 31, 2020, the Company had remaining performance obligations related to freight in-transit, for which revenues of $101 million (2019 - $91 million) are expected to be recognized in the next period.

(2)See Note 23 - Segmented information for the disaggregation of revenues by geographic area.

Schedule of contract liabilities

The following table provides a reconciliation of the beginning and ending balances of contract liabilities for the years ended December 31, 2020, and 2019:

In millions	2020		2019
Beginning of year	$	211	$	3
Revenue recognized included in the beginning balance	(16)		(3)
Increase due to consideration received, net of revenue recognized	5		211
End of year	$	200	$	211
Current portion - End of year	$	115	$	50