Year ended December 31 (millions of dollars)	2006		2005	2004	2003	2002
	Income
	Net income
	Continuing operations	1,051		1,209	980	801	747
	Discontinued operations	28		—	52	50	—
		1,079		1,209	1,032	851	747
	Cash Flow
	Funds generated from operations	2,378		1,951	1,703	1,822	1,843
	(Increase)/decrease in operating working capital	(303	)	(49)	29	93	92
	Net cash provided by operations	2,075		1,902	1,732	1,915	1,935
	Capital expenditures and acquisitions	2,042		2,071	2,046	965	851
	Balance Sheet
	Total assets	25,909		24,113	22,422	20,887	20,555
	Long-term debt	10,887		9,640	9,749	9,516	8,899
	Common shareholders' equity	7,701		7,206	6,565	6,091	5,747
	Common Share Statistics Year ended December 31	2006		2005	2004	2003	2002
	Net income per share — Basic
	Continuing operations	$2.15		$2.49	$2.02	$1.66	$1.56
	Discontinued operations	0.06		—	0.11	0.10	—
		$2.21		$2.49	$2.13	$1.76	$1.56
	Net income per share — Diluted
	Continuing operations	$2.14		$2.47	$2.01	$1.66	$1.55
	Discontinued operations	0.06		—	0.11	0.10	—
		$2.20		$2.47	$2.12	$1.76	$1.55
	Dividends declared per share	$1.28		$1.22	$1.16	$1.08	$1.00
	Common shares outstanding (millions)
	Average for the year	488.0		486.2	484.1	481.5	478.3
	End of year	489.0		487.2	484.9	483.2	479.5