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Equity (Summary of Classes of Share Capital - Preferred Shares Terms and Conditions) (Details)
 12 Months Ended
Oct. 31, 2025
Rate reset preferred shares series 1 [Member]  
Disclosure of classes of share capital [line items]  
Issue date Jun. 04, 2014
Annual yield 4.97%
Dividend frequency Quarterly
Reset spread 2.24%
Next redemption/ conversion date Oct. 31, 2029
Convertible into Series 2
Rate reset preferred shares series 16 [Member]  
Disclosure of classes of share capital [line items]  
Issue date Jul. 14, 2017
Annual yield 6.301%
Dividend frequency Quarterly
Reset spread 3.01%
Next redemption/ conversion date Oct. 31, 2027
Convertible into Series 17
Rate reset preferred shares series 18 [Member]  
Disclosure of classes of share capital [line items]  
Issue date Mar. 14, 2018
Annual yield 5.747%
Dividend frequency Quarterly
Reset spread 2.70%
Next redemption/ conversion date Apr. 30, 2028
Convertible into Series 19
Rate reset preferred shares series 27 [Member]  
Disclosure of classes of share capital [line items]  
Issue date Apr. 04, 2022
Annual yield 5.75%
Dividend frequency Semi-annual
Reset spread 3.317%
Next redemption/ conversion date Oct. 31, 2027
Convertible into –
Rate reset preferred shares series 28 [Member]  
Disclosure of classes of share capital [line items]  
Issue date Jul. 25, 2022
Annual yield 7.232%
Dividend frequency Semi-annual
Reset spread 4.20%
Next redemption/ conversion date Oct. 31, 2027
Convertible into –
NVCC Perpetual Subordinated Capital Notes [Member]  
Disclosure of classes of share capital [line items]  
Issue date Jul. 10, 2024
Annual yield 5.70%
Dividend frequency Semi-annual
Reset spread 2.652%
Next redemption/ conversion date Jul. 31, 2029
Convertible into n/a
NVCC Series One [Member]  
Disclosure of classes of share capital [line items]  
Issue date Jul. 29, 2021
Annual yield 3.60%
Dividend frequency Semi-annual
Reset spread 2.747%
Next redemption/ conversion date Oct. 31, 2026
Convertible into Series 26
NVCC Series Two [Member]  
Disclosure of classes of share capital [line items]  
Issue date Sep. 14, 2022
Annual yield 7.283%
Dividend frequency Semi-annual
Reset spread 4.10%
Next redemption/ conversion date Oct. 31, 2027
Convertible into Series 29
NVCC Series Three [Member]  
Disclosure of classes of share capital [line items]  
Issue date Oct. 17, 2022
Annual yield 8.125%
Dividend frequency Quarterly
Reset spread 4.075%
Next redemption/ conversion date Oct. 31, 2027
Convertible into Series 30
NVCC Series Four [Member]  
Disclosure of classes of share capital [line items]  
Issue date Jul. 03, 2024
Annual yield 7.25%
Dividend frequency Quarterly
Reset spread 2.977%
Next redemption/ conversion date Jul. 31, 2029
Convertible into Series 31
NVCC Series Five [Member]  
Disclosure of classes of share capital [line items]  
Issue date Dec. 18, 2024
Annual yield 5.909%
Dividend frequency Quarterly
Reset spread 3.10%
Next redemption/ conversion date Jan. 01, 2030
Convertible into Series 32
NVCC Series Six [Member]  
Disclosure of classes of share capital [line items]  
Issue date Sep. 23, 2025
Annual yield 6.35%
Dividend frequency Quarterly
Reset spread 2.721%
Next redemption/ conversion date Oct. 31, 2030
Convertible into Series 33