Consolidated statement of shareholders' equity - CAD CAD in Millions	Total	Common shares at stated value (note 10)	Earnings reinvested	Accumulated other comprehensive income (loss) (note 17)
At beginning of year at Dec. 31, 2014		CAD 1,566	CAD 23,023	CAD (2,059)
Net income (loss) for the year	CAD 1,122		1,122
Issued under the stock option plan		0
Other comprehensive income (loss)	231			231
Dividends declared			(458)
At end of year at Dec. 31, 2015	23,425	1,566	23,687	(1,828)
Net income (loss) for the year	2,165		2,165
Issued under the stock option plan		0
Other comprehensive income (loss)	(69)			(69)
Dividends declared			(500)
At end of year at Dec. 31, 2016	25,021	1,566	25,352	(1,897)
Net income (loss) for the year	490		490
Issued under the stock option plan		0
Other comprehensive income (loss)	82			82
Share purchases in excess of stated value			(597)
Share purchases at stated value		30
Dividends declared			(531)
At end of year at Dec. 31, 2017	CAD 24,435	CAD 1,536	CAD 24,714	CAD (1,815)