Share Capital (Tables)

12 Months Ended

Dec. 31, 2017

Share Capital [Abstract]

Schedule Of Common Stock Issued And Outstanding

As at December 31	2017			2016			2015
	Number (millions)		Amount	Number (millions)		Amount	Number (millions)		Amount
Common Shares Outstanding, Beginning of Year	973.0	$	4,756	849.8	$	3,621	741.2	$	2,450
Common Shares Issued	-		-	123.1		1,134	98.4		1,098
Common Shares Issued Under Dividend Reinvestment Plan	0.1		1	0.1		1	10.2		73
Common Shares Outstanding, End of Year	973.1	$	4,757	973.0	$	4,756	849.8	$	3,621

Earnings Per Common Share

For the years ended December 31 (US$ millions, except per share amounts)		2017		2016		2015
Net Earnings (Loss)	$	827	$	(944)	$	(5,165)
Number of Common Shares:
Weighted average common shares outstanding - Basic		973.1		882.6		822.1
Effect of dilutive securities		-		-		-
Weighted average common shares outstanding - Diluted		973.1		882.6		822.1
Net Earnings (Loss) per Common Share
Basic & Diluted	$	0.85	$	(1.07)	$	(6.28)