v3.25.4
Risk Management - Financial Instruments Subject to Credit Exposure (Details) - CAD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Loan commitments    
Disclosure of credit risk exposure [line items]    
Credit exposure $ 324,014 $ 315,670
Amortized cost | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 1,136 1,495
Amortized cost | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 396 360
Amortized cost | Residential mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 26,783 24,056
Amortized cost | Loans to Bank clients    
Disclosure of credit risk exposure [line items]    
Credit exposure 2,735 2,310
Amortized cost | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 4,265 4,300
Gross carrying amount | FVOCI | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 208,898 205,166
Gross carrying amount | FVOCI | Debt securities | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 204,428 199,178
Gross carrying amount | FVOCI | Debt securities | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 4,470 5,988
Gross carrying amount | FVOCI | Private placements    
Disclosure of credit risk exposure [line items]    
Credit exposure 50,829 48,802
Gross carrying amount | FVOCI | Private placements | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 44,112 42,517
Gross carrying amount | FVOCI | Private placements | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 6,717 6,285
Gross carrying amount | FVOCI | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 28,589 28,792
Gross carrying amount | FVOCI | Commercial mortgages | AAA    
Disclosure of credit risk exposure [line items]    
Credit exposure 244 205
Gross carrying amount | FVOCI | Commercial mortgages | AA    
Disclosure of credit risk exposure [line items]    
Credit exposure 7,961 7,234
Gross carrying amount | FVOCI | Commercial mortgages | A    
Disclosure of credit risk exposure [line items]    
Credit exposure 13,720 14,035
Gross carrying amount | FVOCI | Commercial mortgages | BBB    
Disclosure of credit risk exposure [line items]    
Credit exposure 5,751 6,552
Gross carrying amount | FVOCI | Commercial mortgages | BB    
Disclosure of credit risk exposure [line items]    
Credit exposure 793 674
Gross carrying amount | FVOCI | Commercial mortgages | B and lower    
Disclosure of credit risk exposure [line items]    
Credit exposure 120 92
Gross carrying amount | FVOCI | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 383 389
Gross carrying amount | FVOCI | Other invested assets | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Gross carrying amount | FVOCI | Other invested assets | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 383 389
Gross carrying amount | Amortized cost | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 1,137 1,496
Gross carrying amount | Amortized cost | Debt securities | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 1,137 1,496
Gross carrying amount | Amortized cost | Debt securities | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Gross carrying amount | Amortized cost | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 398 362
Gross carrying amount | Amortized cost | Commercial mortgages | AAA    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Gross carrying amount | Amortized cost | Commercial mortgages | AA    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Gross carrying amount | Amortized cost | Commercial mortgages | A    
Disclosure of credit risk exposure [line items]    
Credit exposure 223 240
Gross carrying amount | Amortized cost | Commercial mortgages | BBB    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Gross carrying amount | Amortized cost | Commercial mortgages | BB    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Gross carrying amount | Amortized cost | Commercial mortgages | B and lower    
Disclosure of credit risk exposure [line items]    
Credit exposure 175 122
Gross carrying amount | Amortized cost | Residential mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 26,790 24,062
Gross carrying amount | Amortized cost | Residential mortgages | Performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 26,740 24,021
Gross carrying amount | Amortized cost | Residential mortgages | Non-performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 50 41
Gross carrying amount | Amortized cost | Loans to Bank clients    
Disclosure of credit risk exposure [line items]    
Credit exposure 2,738 2,313
Gross carrying amount | Amortized cost | Loans to Bank clients | Performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 2,734 2,303
Gross carrying amount | Amortized cost | Loans to Bank clients | Non-performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 4 10
Gross carrying amount | Amortized cost | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 4,266 4,302
Gross carrying amount | Amortized cost | Other invested assets | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 4,266 4,302
Gross carrying amount | Amortized cost | Other invested assets | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Accumulated impairment | Loan commitments    
Disclosure of credit risk exposure [line items]    
Credit exposure 12 11
Accumulated impairment | FVOCI | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 264 270
Accumulated impairment | FVOCI | Private placements    
Disclosure of credit risk exposure [line items]    
Credit exposure 384 376
Accumulated impairment | FVOCI | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 114 135
Accumulated impairment | FVOCI | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 21 22
Accumulated impairment | Amortized cost | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 1
Accumulated impairment | Amortized cost | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 2 2
Accumulated impairment | Amortized cost | Residential mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 7 6
Accumulated impairment | Amortized cost | Loans to Bank clients    
Disclosure of credit risk exposure [line items]    
Credit exposure 3 3
Accumulated impairment | Amortized cost | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 2
Stage 1 | Loan commitments    
Disclosure of credit risk exposure [line items]    
Credit exposure 317,815 309,080
Stage 1 | Amortized cost | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 1,136 1,495
Stage 1 | Amortized cost | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 388 336
Stage 1 | Amortized cost | Residential mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 25,357 22,867
Stage 1 | Amortized cost | Loans to Bank clients    
Disclosure of credit risk exposure [line items]    
Credit exposure 2,628 2,264
Stage 1 | Amortized cost | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 4,265 4,300
Stage 1 | Gross carrying amount | FVOCI | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 207,234 203,465
Stage 1 | Gross carrying amount | FVOCI | Debt securities | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 203,241 197,840
Stage 1 | Gross carrying amount | FVOCI | Debt securities | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 3,993 5,625
Stage 1 | Gross carrying amount | FVOCI | Private placements    
Disclosure of credit risk exposure [line items]    
Credit exposure 49,330 46,800
Stage 1 | Gross carrying amount | FVOCI | Private placements | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 43,803 41,796
Stage 1 | Gross carrying amount | FVOCI | Private placements | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 5,527 5,004
Stage 1 | Gross carrying amount | FVOCI | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 27,094 27,164
Stage 1 | Gross carrying amount | FVOCI | Commercial mortgages | AAA    
Disclosure of credit risk exposure [line items]    
Credit exposure 244 205
Stage 1 | Gross carrying amount | FVOCI | Commercial mortgages | AA    
Disclosure of credit risk exposure [line items]    
Credit exposure 7,961 7,234
Stage 1 | Gross carrying amount | FVOCI | Commercial mortgages | A    
Disclosure of credit risk exposure [line items]    
Credit exposure 13,720 14,035
Stage 1 | Gross carrying amount | FVOCI | Commercial mortgages | BBB    
Disclosure of credit risk exposure [line items]    
Credit exposure 5,106 5,679
Stage 1 | Gross carrying amount | FVOCI | Commercial mortgages | BB    
Disclosure of credit risk exposure [line items]    
Credit exposure 63 11
Stage 1 | Gross carrying amount | FVOCI | Commercial mortgages | B and lower    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 1 | Gross carrying amount | FVOCI | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 383 389
Stage 1 | Gross carrying amount | FVOCI | Other invested assets | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 1 | Gross carrying amount | FVOCI | Other invested assets | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 383 389
Stage 1 | Gross carrying amount | Amortized cost | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 1,137 1,496
Stage 1 | Gross carrying amount | Amortized cost | Debt securities | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 1,137 1,496
Stage 1 | Gross carrying amount | Amortized cost | Debt securities | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 1 | Gross carrying amount | Amortized cost | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 389 337
Stage 1 | Gross carrying amount | Amortized cost | Commercial mortgages | AAA    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 1 | Gross carrying amount | Amortized cost | Commercial mortgages | AA    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 1 | Gross carrying amount | Amortized cost | Commercial mortgages | A    
Disclosure of credit risk exposure [line items]    
Credit exposure 223 225
Stage 1 | Gross carrying amount | Amortized cost | Commercial mortgages | BBB    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 1 | Gross carrying amount | Amortized cost | Commercial mortgages | BB    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 1 | Gross carrying amount | Amortized cost | Commercial mortgages | B and lower    
Disclosure of credit risk exposure [line items]    
Credit exposure 166 112
Stage 1 | Gross carrying amount | Amortized cost | Residential mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 25,361 22,870
Stage 1 | Gross carrying amount | Amortized cost | Residential mortgages | Performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 25,361 22,870
Stage 1 | Gross carrying amount | Amortized cost | Residential mortgages | Non-performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 1 | Gross carrying amount | Amortized cost | Loans to Bank clients    
Disclosure of credit risk exposure [line items]    
Credit exposure 2,629 2,265
Stage 1 | Gross carrying amount | Amortized cost | Loans to Bank clients | Performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 2,629 2,265
Stage 1 | Gross carrying amount | Amortized cost | Loans to Bank clients | Non-performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 1 | Gross carrying amount | Amortized cost | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 4,266 4,302
Stage 1 | Gross carrying amount | Amortized cost | Other invested assets | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 4,266 4,302
Stage 1 | Gross carrying amount | Amortized cost | Other invested assets | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 1 | Accumulated impairment | Loan commitments    
Disclosure of credit risk exposure [line items]    
Credit exposure 10 9
Stage 1 | Accumulated impairment | FVOCI | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 221 228
Stage 1 | Accumulated impairment | FVOCI | Private placements    
Disclosure of credit risk exposure [line items]    
Credit exposure 108 126
Stage 1 | Accumulated impairment | FVOCI | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 42 41
Stage 1 | Accumulated impairment | FVOCI | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 21 22
Stage 1 | Accumulated impairment | Amortized cost | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 1
Stage 1 | Accumulated impairment | Amortized cost | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 1
Stage 1 | Accumulated impairment | Amortized cost | Residential mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 4 3
Stage 1 | Accumulated impairment | Amortized cost | Loans to Bank clients    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 1
Stage 1 | Accumulated impairment | Amortized cost | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 2
Stage 2 | Loan commitments    
Disclosure of credit risk exposure [line items]    
Credit exposure 5,836 6,317
Stage 2 | Amortized cost | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Amortized cost | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 8 19
Stage 2 | Amortized cost | Residential mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 1,377 1,149
Stage 2 | Amortized cost | Loans to Bank clients    
Disclosure of credit risk exposure [line items]    
Credit exposure 104 37
Stage 2 | Amortized cost | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | FVOCI | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 1,664 1,701
Stage 2 | Gross carrying amount | FVOCI | Debt securities | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 1,187 1,338
Stage 2 | Gross carrying amount | FVOCI | Debt securities | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 477 363
Stage 2 | Gross carrying amount | FVOCI | Private placements    
Disclosure of credit risk exposure [line items]    
Credit exposure 1,288 1,854
Stage 2 | Gross carrying amount | FVOCI | Private placements | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 309 721
Stage 2 | Gross carrying amount | FVOCI | Private placements | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 979 1,133
Stage 2 | Gross carrying amount | FVOCI | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 1,395 1,557
Stage 2 | Gross carrying amount | FVOCI | Commercial mortgages | AAA    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | FVOCI | Commercial mortgages | AA    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | FVOCI | Commercial mortgages | A    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | FVOCI | Commercial mortgages | BBB    
Disclosure of credit risk exposure [line items]    
Credit exposure 645 873
Stage 2 | Gross carrying amount | FVOCI | Commercial mortgages | BB    
Disclosure of credit risk exposure [line items]    
Credit exposure 730 663
Stage 2 | Gross carrying amount | FVOCI | Commercial mortgages | B and lower    
Disclosure of credit risk exposure [line items]    
Credit exposure 20 21
Stage 2 | Gross carrying amount | FVOCI | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | FVOCI | Other invested assets | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | FVOCI | Other invested assets | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | Amortized cost | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | Amortized cost | Debt securities | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | Amortized cost | Debt securities | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | Amortized cost | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 8 20
Stage 2 | Gross carrying amount | Amortized cost | Commercial mortgages | AAA    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | Amortized cost | Commercial mortgages | AA    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | Amortized cost | Commercial mortgages | A    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 15
Stage 2 | Gross carrying amount | Amortized cost | Commercial mortgages | BBB    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | Amortized cost | Commercial mortgages | BB    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | Amortized cost | Commercial mortgages | B and lower    
Disclosure of credit risk exposure [line items]    
Credit exposure 8 5
Stage 2 | Gross carrying amount | Amortized cost | Residential mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 1,379 1,151
Stage 2 | Gross carrying amount | Amortized cost | Residential mortgages | Performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 1,379 1,151
Stage 2 | Gross carrying amount | Amortized cost | Residential mortgages | Non-performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | Amortized cost | Loans to Bank clients    
Disclosure of credit risk exposure [line items]    
Credit exposure 105 38
Stage 2 | Gross carrying amount | Amortized cost | Loans to Bank clients | Performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 105 38
Stage 2 | Gross carrying amount | Amortized cost | Loans to Bank clients | Non-performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | Amortized cost | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | Amortized cost | Other invested assets | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Gross carrying amount | Amortized cost | Other invested assets | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Accumulated impairment | Loan commitments    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 1
Stage 2 | Accumulated impairment | FVOCI | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 43 42
Stage 2 | Accumulated impairment | FVOCI | Private placements    
Disclosure of credit risk exposure [line items]    
Credit exposure 82 127
Stage 2 | Accumulated impairment | FVOCI | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 38 39
Stage 2 | Accumulated impairment | FVOCI | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Accumulated impairment | Amortized cost | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 2 | Accumulated impairment | Amortized cost | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 1
Stage 2 | Accumulated impairment | Amortized cost | Residential mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 2 2
Stage 2 | Accumulated impairment | Amortized cost | Loans to Bank clients    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 1
Stage 2 | Accumulated impairment | Amortized cost | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Loan commitments    
Disclosure of credit risk exposure [line items]    
Credit exposure 363 273
Stage 3 | Amortized cost | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Amortized cost | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 5
Stage 3 | Amortized cost | Residential mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 49 40
Stage 3 | Amortized cost | Loans to Bank clients    
Disclosure of credit risk exposure [line items]    
Credit exposure 3 9
Stage 3 | Amortized cost | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | FVOCI | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | FVOCI | Debt securities | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | FVOCI | Debt securities | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | FVOCI | Private placements    
Disclosure of credit risk exposure [line items]    
Credit exposure 211 148
Stage 3 | Gross carrying amount | FVOCI | Private placements | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | FVOCI | Private placements | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 211 148
Stage 3 | Gross carrying amount | FVOCI | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 100 71
Stage 3 | Gross carrying amount | FVOCI | Commercial mortgages | AAA    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | FVOCI | Commercial mortgages | AA    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | FVOCI | Commercial mortgages | A    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | FVOCI | Commercial mortgages | BBB    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | FVOCI | Commercial mortgages | BB    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | FVOCI | Commercial mortgages | B and lower    
Disclosure of credit risk exposure [line items]    
Credit exposure 100 71
Stage 3 | Gross carrying amount | FVOCI | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | FVOCI | Other invested assets | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | FVOCI | Other invested assets | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | Amortized cost | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | Amortized cost | Debt securities | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | Amortized cost | Debt securities | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | Amortized cost | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 5
Stage 3 | Gross carrying amount | Amortized cost | Commercial mortgages | AAA    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | Amortized cost | Commercial mortgages | AA    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | Amortized cost | Commercial mortgages | A    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | Amortized cost | Commercial mortgages | BBB    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | Amortized cost | Commercial mortgages | BB    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | Amortized cost | Commercial mortgages | B and lower    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 5
Stage 3 | Gross carrying amount | Amortized cost | Residential mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 50 41
Stage 3 | Gross carrying amount | Amortized cost | Residential mortgages | Performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | Amortized cost | Residential mortgages | Non-performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 50 41
Stage 3 | Gross carrying amount | Amortized cost | Loans to Bank clients    
Disclosure of credit risk exposure [line items]    
Credit exposure 4 10
Stage 3 | Gross carrying amount | Amortized cost | Loans to Bank clients | Performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | Amortized cost | Loans to Bank clients | Non-performing    
Disclosure of credit risk exposure [line items]    
Credit exposure 4 10
Stage 3 | Gross carrying amount | Amortized cost | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | Amortized cost | Other invested assets | Investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Gross carrying amount | Amortized cost | Other invested assets | Non-investment grade    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Accumulated impairment | Loan commitments    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 1
Stage 3 | Accumulated impairment | FVOCI | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Accumulated impairment | FVOCI | Private placements    
Disclosure of credit risk exposure [line items]    
Credit exposure 194 123
Stage 3 | Accumulated impairment | FVOCI | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 34 55
Stage 3 | Accumulated impairment | FVOCI | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Accumulated impairment | Amortized cost | Debt securities    
Disclosure of credit risk exposure [line items]    
Credit exposure 0 0
Stage 3 | Accumulated impairment | Amortized cost | Commercial mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 0
Stage 3 | Accumulated impairment | Amortized cost | Residential mortgages    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 1
Stage 3 | Accumulated impairment | Amortized cost | Loans to Bank clients    
Disclosure of credit risk exposure [line items]    
Credit exposure 1 1
Stage 3 | Accumulated impairment | Amortized cost | Other invested assets    
Disclosure of credit risk exposure [line items]    
Credit exposure $ 0 $ 0