INTERIM CONSOLIDATED STATEMENTS OF INCOME - CAD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues (Note 3)
Total revenues	$ 3,174	$ 2,202	$ 5,440	$ 4,040
Operating expenses
Compensation and benefits (Note 8)	659	348	1,097	761
Fuel	397	370	723	643
Materials	98	63	170	125
Equipment rents	80	29	110	64
Depreciation and amortization	410	211	635	421
Purchased services and other (Note 8)	586	313	932	623
Total operating expenses	2,230	1,334	3,667	2,637
Operating income	944	868	1,773	1,403
Less:
Equity earnings of Kansas City Southern (Note 8, 9)	(26)	(208)	(230)	(406)
Other expense (Note 8)	21	7	23	6
Other components of net periodic benefit recovery (Note 14)	(83)	(101)	(169)	(202)
Net interest expense	204	160	358	320
Remeasurement loss of Kansas City Southern (Note 8)	7,175	0	7,175	0
Income before income taxes	(6,347)	1,010	(5,384)	1,685
(Loss) income before income tax expense
Current income tax expense (Note 4)	281	131	419	217
Deferred tax (recovery) expense (Note 4)	(7,953)	114	(7,928)	113
Income tax (recovery) expense (Note 4)	(7,672)	245	(7,509)	330
Net income	1,325	765	2,125	1,355
Less: Net income attributable to non-controlling interest	1	0	1	0
Net income attributable to controlling shareholders	$ 1,324	$ 765	$ 2,124	$ 1,355
Earnings per share (Note 5)
Basic earnings per share (in dollars per share)	$ 1.42	$ 0.82	$ 2.28	$ 1.46
Diluted earnings per share (in dollars per share)	$ 1.42	$ 0.82	$ 2.28	$ 1.45
Weighted-average number of shares (millions) (Note 5)
Basic (in shares)	931.2	929.9	930.9	929.8
Diluted (in shares)	933.8	932.6	933.6	932.7
Dividends declared per share (in dollars per share)	$ 0.190	$ 0.190	$ 0.380	$ 0.380
Freight
Revenues (Note 3)
Total revenues	$ 3,101	$ 2,154	$ 5,318	$ 3,950
Non-freight
Revenues (Note 3)
Total revenues	$ 73	$ 48	$ 122	$ 90