XML 92 R53.htm IDEA: XBRL DOCUMENT
v3.25.3

Long-term debt (Tables) | 12 Months Ended
--- | ---
Sep. 30, 2025
Borrowings [abstract] |
Disclosure of long-term debt |
| As at September 30, 2025 | As at September 30, 2024
| $ | $
2021 U.S. Senior Notes of $835,860 (U.S. $600,000) repayable in September 2026 and of $557,240 (U.S. $400,000) repayable in September 2031 1 | 1,386,564 |  | 1,342,758 |
2021 CAD Senior Notes of $600,000 repayable in September 2028 2 | 597,892 |  | 597,212 |
2024 CAD Senior Notes of $300,000 repayable in September 2027 and of $450,000 repayable in September 2029 3 | 747,001 |  | 746,144 |
2025 U.S. Senior Notes of $905,515 (U.S $650,000) repayable in March 2030 4 | 894,509 |  | — |
Other long-term debt | 11,869 |  | 2,194 |
| 3,637,835 |  | 2,688,308 |
Current portion | 845,253 |  | 999 |
| 2,792,582 |  | 2,687,309 |
1 The senior unsecured notes issued in 2021 of U.S. $1,000,000,000 (2021 U.S. Senior Notes) are comprised of two series of senior unsecured notes with a weighted average maturity of 3 years and a weighted average interest rate of 1.79%. As at September 30, 2025, these represent an amount of $1,393,100,000, less financing fees. 2 The senior unsecured notes issued in 2021 of $600,000,000 (2021 CAD Senior Notes), less financing fees, are due in September 2028, with an interest rate of 2.10%. 3 The senior unsecured notes issued in 2024 of $750,000,000 (2024 CAD Senior Notes), less financing fees, are comprised of two series of senior unsecured notes with a weighted average maturity of 3 years and a weighted average interest rate of 4.08% as at September 30 2025. 4 In March 2025, the Company issued senior unsecured notes (2025 U.S. Senior Notes) for a total principal amount of U.S. $650,000,000, less financing fees. This issuance is comprised of one series of notes with a maturity of 5 years at an interest rate of 4.95%.

X
- References No definition available. + Details
Name: | ifrs-full_BorrowingsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of detailed information about borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2025-01-01 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_7&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:textBlockItemType
Balance Type: | na
Period Type: | duration