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Equity Capital and Earnings Per Share - Summary of Further Information on Preferred Shares and Other Equity Instruments Outstanding (Parenthetical) (Detail) - $ / shares
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2021
Series 1(LRCN-Series 1) [member] | On JuneEighteen Two Thousand and Twenty Six and every Five Years Thereafter Until JuneNighteen Two Thousand and Seventy Six [Member]    
Disclosure of classes of share capital [Line Items]    
Floating dividend rate, description rate equal to the five-year Government of Canada yield as defined in the prospectus, plus 2.839%.  
Interest rate, basis 2.839  
Other equity interest [member] | Series 1(LRCN-Series 1) [member]    
Disclosure of classes of share capital [Line Items]    
Annual dividend rate 3.375%  
Other equity interest [member] | Series 1(LRCN-Series 1) [member] | Before JuneEighteen Two Thousand and Twenty Six [Member]    
Disclosure of classes of share capital [Line Items]    
Interest rate 3.375%  
Other equity interest [member] | Series 3(LRCN-Series 1) [member]    
Disclosure of classes of share capital [Line Items]    
Floating dividend rate, description rate will be reset at a rate equal to the five-year Government of Canada yield as defined in the prospectus, plus 3.95%.  
Interest rate 7.117%  
Interest rate, basis 3.95  
Annual dividend rate 7.117%  
Other equity interest [member] | Series 2 (LRCN-Series 2) [member]    
Disclosure of classes of share capital [Line Items]    
Annual dividend rate 4.10%  
Other equity interest [member] | Series 2 (LRCN-Series 2) [member] | Before May Eighteen Two Thousand And Twenty Seven [Member]    
Disclosure of classes of share capital [Line Items]    
Interest rate 4.10%  
Other equity interest [member] | Series 2 (LRCN-Series 2) [member] | On May Eighteen Two Thousand And Twenty Seven And Every Five Years Thereafter Until March Nineteen Two Thousand and Seventy Seventy [Member]    
Disclosure of classes of share capital [Line Items]    
Floating dividend rate, description rate equal to the five-year Government of Canada yield as defined in the prospectus, plus 2.704%.  
Interest rate, basis 2.704  
Class 1, Series 4 Preferred shares [Member] | If redeemed on June 19, 2021 [Member]    
Disclosure of classes of share capital [Line Items]    
Price per share   $ 25
Class 1, Series 4 Preferred shares [Member] | If redeemed after June 19, 2021 [Member]    
Disclosure of classes of share capital [Line Items]    
Price per share   $ 25.5
Class 1, Series 4 Preferred shares [Member] | Major ordinary share transactions [Member]    
Disclosure of classes of share capital [Line Items]    
Basis spread on dividend rate 1.41%  
Floating dividend rate, description three-month Government of Canada Treasury bill yield plus 1.41%.  
Class 1, Series 3 Preferred shares [Member]    
Disclosure of classes of share capital [Line Items]    
Specified yield percentage 1.41%  
Annual dividend rate 2.348%  
Class 1, Series 9 Preferred shares [Member]    
Disclosure of classes of share capital [Line Items]    
Specified yield percentage 2.86%  
Annual dividend rate 5.978%  
Class 1, Series 11 Preferred shares [Member]    
Disclosure of classes of share capital [Line Items]    
Specified yield percentage 2.61%  
Previous redemption date Mar. 19, 2023  
Annual dividend rate 6.159%  
Class 1, Series 11 Preferred shares [Member] | Other equity interest [member] | After March Two Thousand And Twenty Three For Five Years [Member]    
Disclosure of classes of share capital [Line Items]    
Annual dividend rate 6.159%  
Class 1, Series 13 Preferred shares [Member]    
Disclosure of classes of share capital [Line Items]    
Specified yield percentage 2.22%  
Annual dividend rate 6.35%  
Class 1, Series 13 Preferred shares [Member] | Other equity interest [member] | Five Year Period Commencing On Or After September Twentieth Two Thousand And Twenty Three [Member]    
Disclosure of classes of share capital [Line Items]    
Annual dividend rate 6.35%  
Class 1, Series 15 Preferred shares [Member]    
Disclosure of classes of share capital [Line Items]    
Specified yield percentage 2.16%  
Annual dividend rate 3.786%  
Class 1, Series 17 Preferred shares [Member]    
Disclosure of classes of share capital [Line Items]    
Specified yield percentage 2.36%  
Annual dividend rate 3.80%  
Class 1, Series 19 Preferred shares [Member]    
Disclosure of classes of share capital [Line Items]    
Specified yield percentage 2.30%  
Annual dividend rate 3.675%  
Class 1, Series 25 Preferred Shares [Member]    
Disclosure of classes of share capital [Line Items]    
Specified yield percentage 2.55%  
Annual dividend rate 5.942%  
Class 1, Series 25 Preferred Shares [Member] | Other equity interest [member] | Five Year Period Commencing On Or After Twentieth June Two Thousand And Twenty Three [Member]    
Disclosure of classes of share capital [Line Items]    
Annual dividend rate 5.942%