Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

Name:	us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

INTERIM CONSOLIDATED BALANCE SHEETS AS AT (unaudited) - CAD CAD in Millions	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	CAD 142		CAD 164
Accounts receivable, net	628		591
Materials and supplies	157		184
Other current assets	65		70
Total current assets	992		1,009
Investments	185		194
Properties	16,700		16,689
Goodwill and intangible assets	187		202
Pension asset	1,356		1,070
Other assets	59		57
Total assets	19,479		19,221
Current liabilities
Accounts payable and accrued liabilities	1,139		1,322
Long-term debt maturing within one year	749		25
Total current liabilities	1,888		1,347
Pension and other benefit liabilities	726		734
Other long-term liabilities	221		284
Long-term debt	7,384		8,659
Deferred income taxes	3,695		3,571
Total liabilities	13,914		14,595
Shareholders’ equity
Share capital	2,025		2,002
Additional paid-in capital	42		52
Accumulated other comprehensive loss	(1,715)	CAD (1,740)	(1,799)	CAD (1,433)	CAD (1,471)	CAD (1,477)
Retained earnings	5,213		4,371
Total Shareholders' equity	5,565		4,626	CAD 4,669		CAD 4,796
Total liabilities and shareholders’ equity	CAD 19,479		CAD 19,221