Debt (Tables)

12 Months Ended

Dec. 31, 2024

Debt Disclosure [Abstract]

Long-term Debt

The following table outlines the Company's outstanding long-term debt as at December 31, 2024:

(in millions of Canadian dollars except percentages)			Maturity	Currency in which payable	2024	2023
1.35%	3-year Notes	(A)	Dec 2024	U.S.$	—	1,983
2.90%	10-year Notes	(A)	Feb 2025	U.S.$	924	926
3.70%	10.5-year Notes	(A)	Feb 2026	U.S.$	360	330
1.75%	5-year Notes	(A)	Dec 2026	U.S.$	1,438	1,321
2.54%	6.3-year Notes	(A)	Feb 2028	CDN$	1,200	1,200
4.00%	10-year Notes	(A)	Jun 2028	U.S.$	719	661
3.15%	10-year Notes	(A)	Mar 2029	CDN$	400	400
2.05%	10-year Notes	(A)	Mar 2030	U.S.$	719	660
7.125%	30-year Debentures	(A)	Oct 2031	U.S.$	503	463
2.45%	10-year Notes	(A)	Dec 2031	U.S.$	2,014	1,851
5.75%	30-year Debentures	(A)	Mar 2033	U.S.$	355	326
4.80%	20-year Notes	(A)	Sep 2035	U.S.$	431	396
5.95%	30-year Notes	(A)	May 2037	U.S.$	642	590
6.45%	30-year Notes	(A)	Nov 2039	CDN$	400	400
3.00%	20-year Notes	(A)	Dec 2041	U.S.$	1,433	1,317
5.75%	30-year Notes	(A)	Jan 2042	U.S.$	355	326
4.80%	30-year Notes	(A)	Aug 2045	U.S.$	790	725
3.05%	30-year Notes	(A)	Mar 2050	CDN$	298	298
3.10%	30-year Notes	(A)	Dec 2051	U.S.$	2,507	2,365
6.125%	100-year Notes	(A)	Sep 2115	U.S.$	1,295	1,190
CPRC Notes issued under Debt Exchange
3.125%	10-year Notes	(B)	Jun 2026	U.S.$	320	291

2.875%	10-year Notes	(B)	Nov 2029	U.S.$	551		499
4.30%	30-year Notes	(B)	May 2043	U.S.$	563		515
4.95%	30-year Notes	(B)	Aug 2045	U.S.$	626		574
4.70%	30-year Notes	(B)	May 2048	U.S.$	653		599
3.50%	30-year Notes	(B)	May 2050	U.S.$	591		540
4.20%	50-year Notes	(B)	Nov 2069	U.S.$	484		444
2.875% - 7.00%	Other Senior Notes	(B)	up to Nov 2069	U.S.$	114		104
5.41%	Senior Secured Notes	(C)	Mar 2024	U.S.$	—		64
6.91%	Secured Equipment Notes	(C)	Oct 2024	CDN$	—		21
2.96% - 4.29%	RRIF Loans	(D)	up to Feb 2037	U.S.$	69		70
Obligations under finance leases
Various		(E)	Various	CDN$/U.S.$	6		8
2.32%		(E)	Sep 2026	U.S.$	6		8
6.57%		(E)	Dec 2026	U.S.$	16		22
12.77%		(E)	Jan 2031	CDN$	3		3
1.93%		(E)	Feb 2041	U.S.$	4		4
Commercial Paper				U.S.$	1,586		1,058
Short-term Borrowing				U.S.$	288		—
					22,663		22,552
Perpetual 4% Consolidated Debenture Stock		(F)		U.S.$	44		40
Perpetual 4% Consolidated Debenture Stock		(F)		G.B.£	6		6
					22,713		22,598
Unamortized fees on long-term debt					(90)		(104)
					22,623		22,494
Less: Long-term debt maturing within one year					2,819		3,143
Total long-term debt					$	19,804	$	19,351