INTERIM CONSOLIDATED STATEMENTS OF INCOME - CAD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenues (Note 3)
Total revenues	$ 3,603	$ 3,174	$ 7,123	$ 5,440
Operating expenses
Compensation and benefits (Note 8)	612	659	1,302	1,097
Fuel	466	397	924	723
Materials (Note 8)	97	98	191	170
Equipment rents	82	80	164	110
Depreciation and amortization (Note 8)	473	410	940	635
Purchased services and other (Note 8)	606	586	1,186	932
Total operating expenses	2,336	2,230	4,707	3,667
Operating income	1,267	944	2,416	1,773
Less:
Equity earnings of Kansas City Southern (Note 8, 9)	0	(26)	0	(230)
Other (income) expense (Note 8, 10)	(40)	21	(42)	23
Other components of net periodic benefit recovery (Note 12)	(88)	(83)	(176)	(169)
Net interest expense (Note 8)	200	204	406	358
Remeasurement loss of Kansas City Southern (Note 8)	0	7,175	0	7,175
Income before income taxes	1,195	(6,347)	2,228	(5,384)
Income (loss) before income tax expense (recovery)
Current income tax expense (Note 4)	274	281	516	419
Deferred income tax expense (recovery) (Note 4, 8)	18	(7,953)	35	(7,928)
Income tax expense (recovery) (Note 4)	292	(7,672)	551	(7,509)
Net income	903	1,325	1,677	2,125
Less: Net (loss) income attributable to non-controlling interest (Note 8)	(2)	1	(3)	1
Net income attributable to controlling shareholders	$ 905	$ 1,324	$ 1,680	$ 2,124
Earnings per share (Note 5)
Basic earnings per share (in dollars per share)	$ 0.97	$ 1.42	$ 1.80	$ 2.28
Diluted earnings per share (in dollars per share)	$ 0.97	$ 1.42	$ 1.80	$ 2.28
Weighted-average number of shares (millions) (Note 5)
Basic (in shares)	932.8	931.2	932.6	930.9
Diluted (in shares)	934.6	933.8	934.5	933.6
Dividends declared per share (in dollars per share)	$ 0.19	$ 0.19	$ 0.38	$ 0.38
Freight
Revenues (Note 3)
Total revenues	$ 3,534	$ 3,101	$ 6,961	$ 5,318
Non-freight
Revenues (Note 3)
Total revenues	$ 69	$ 73	$ 162	$ 122