Revenues

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

Revenues

Revenues

The following table disaggregates the Company’s revenues from contracts with customers by major source:

	For the three months ended March 31
(in millions of Canadian dollars)	2021		2020
Freight
Grain	$	448	$	418
Coal	163		150
Potash	101		112
Fertilizers and sulphur	77		70
Forest products	80		78
Energy, chemicals and plastics	388		491
Metals, minerals and consumer products	159		189
Automotive	108		87
Intermodal	394		405
Total freight revenues	1,918		2,000
Non-freight excluding leasing revenues	24		29
Revenues from contracts with customers	1,942		2,029
Leasing revenues	17		14
Total revenues	$	1,959	$	2,043

Contract liabilities       

Contract liabilities represent payments received for performance obligations not yet satisfied and relate to deferred revenue, and are presented as components of "Accounts payable and accrued liabilities" and "Other long-term liabilities" on the Company's Interim Consolidated Balance Sheets.

The following table summarizes the changes in contract liabilities:

	For the three months ended March 31
(in millions of Canadian dollars)	2021		2020
Opening balance	$	61	$	146
Revenue recognized that was included in the contract liability balance at the beginning of the period	(11)		(37)
Increase due to consideration received, net of revenue recognized during the period	64		3
Closing balance	$	114	$	112