XML 86 R124.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Subordinated Debt - Obligations Included in Subordinated Debt (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Sun Life Assurance Subordinated Debt Issued May 15, 1998    
Disclosure of detailed information about borrowings [line items]    
Interest rate 6.30%  
Borrowings outstanding $ 150 $ 150
Subordinated Debt Issued May 29, 2007    
Disclosure of detailed information about borrowings [line items]    
Interest rate 5.40%  
Borrowings outstanding $ 398 398
Subordinated Debt Issued May 13, 2014    
Disclosure of detailed information about borrowings [line items]    
Interest rate 2.77%  
Borrowings outstanding $ 0 250
Subordinated Debt Issued September 25, 2015    
Disclosure of detailed information about borrowings [line items]    
Interest rate 2.60%  
Borrowings outstanding $ 500 499
Subordinated Debt Issued February 19, 2016    
Disclosure of detailed information about borrowings [line items]    
Interest rate 3.10%  
Borrowings outstanding $ 349 349
Subordinated Debt Issued September 19, 2016    
Disclosure of detailed information about borrowings [line items]    
Interest rate 3.05%  
Borrowings outstanding $ 996 995
Subordinated Debt Issued November 23, 2017    
Disclosure of detailed information about borrowings [line items]    
Interest rate 2.75%  
Borrowings outstanding $ 399 398
Subordinated Debt Issued August 7, 2019    
Disclosure of detailed information about borrowings [line items]    
Interest rate 2.38%  
Borrowings outstanding $ 746 0
Adjustment to interest rate basis 0.85%  
Subordinated Debt    
Disclosure of detailed information about borrowings [line items]    
Borrowings outstanding $ 3,538 3,039
Fair value of borrowings outstanding 3,727 3,129
Interest expense on subordinated debt $ 105 $ 105
Government of Canada Bond Yield | Sun Life Assurance Subordinated Debt Issued May 15, 1998    
Disclosure of detailed information about borrowings [line items]    
Adjustment to interest rate basis 0.16%  
After earliest par call or redemption date | Canadian Dollar Offered Rate (CDOR) | Subordinated Debt Issued May 29, 2007    
Disclosure of detailed information about borrowings [line items]    
Adjustment to interest rate basis 1.00%  
After earliest par call or redemption date | Canadian Dollar Offered Rate (CDOR) | Subordinated Debt Issued September 25, 2015    
Disclosure of detailed information about borrowings [line items]    
Adjustment to interest rate basis 1.43%  
After earliest par call or redemption date | Canadian Dollar Offered Rate (CDOR) | Subordinated Debt Issued February 19, 2016    
Disclosure of detailed information about borrowings [line items]    
Adjustment to interest rate basis 2.20%  
After earliest par call or redemption date | Canadian Dollar Offered Rate (CDOR) | Subordinated Debt Issued September 19, 2016    
Disclosure of detailed information about borrowings [line items]    
Adjustment to interest rate basis 1.85%  
After earliest par call or redemption date | Canadian Dollar Offered Rate (CDOR) | Subordinated Debt Issued November 23, 2017    
Disclosure of detailed information about borrowings [line items]    
Adjustment to interest rate basis 0.74%  
Before earliest par call or redemption date | Government of Canada Bond Yield | Subordinated Debt Issued May 29, 2007    
Disclosure of detailed information about borrowings [line items]    
Adjustment to interest rate basis 0.25%  
Before earliest par call or redemption date | Government of Canada Bond Yield | Subordinated Debt Issued September 19, 2016    
Disclosure of detailed information about borrowings [line items]    
Adjustment to interest rate basis 0.52%