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Invested Assets and Investment Income - Schedule of Investment Income (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Disclosure of Investment Income [line items] |  |
Rental income, net of depreciation | $ 825 | $ 837
Net Investment income | (29,870) | 11,624
Investment income | 15,207 | 15,627
Debt securities [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 7,025 | 6,230
Gains (losses) | (33,281) | (5,866)
Impairment loss, net | (11) | 29
Cash and short-term securities [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 312 | 96
Gains (losses) | 111 | 63
Public equities [Member] |  |
Disclosure of Investment Income [line items] |  |
Dividend income | 545 | 731
Gains (losses) | (3,618) | 3,471
Impairment loss, net | (14) | (3)
Mortgages [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 1,913 | 1,709
Gains (losses) | 57 | 133
Provision, net | 1 | 1
Private placements [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 2,021 | 1,931
Gains (losses) | 335 | 270
Impairment loss, net | (4) | 45
Policy loans [member] |  |
Disclosure of Investment Income [line items] |  |
Net Investment income | 385 | 366
Loans to Bank clients [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 138 | 77
Provision, net | (4) | (2)
Real estate [Member] |  |
Disclosure of Investment Income [line items] |  |
Rental income, net of depreciation | 452 | 453
Gains (losses) | (478) | 677
Derivatives [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 470 | 1,050
Gains (losses) | (10,637) | (5,939)
Other invested assets [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 26 | 57
Oil and gas, timber, agriculture and other income | 2,846 | 2,996
Gains (losses) | 1,659 | 3,104
Impairment loss, net | (119) | (55)
Interest income [member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | 12,290 | 11,517
Dividend, rental and other income [member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | 3,843 | 4,180
Impairments, provisions and recoveries, net [Member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | (151) | 15
Other [Member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | (775) | (85)
Insurance and investment contract liabilities and macro equity hedges [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | (45,077) | (4,003)
Insurance and investment contract liabilities and macro equity hedges [Member] | Debt securities [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | (32,675) | (5,585)
Insurance and investment contract liabilities and macro equity hedges [Member] | Public equities [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | (3,602) | 3,220
Insurance and investment contract liabilities and macro equity hedges [Member] | Mortgages [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | 58 | 133
Insurance and investment contract liabilities and macro equity hedges [Member] | Private placements [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | 336 | 270
Insurance and investment contract liabilities and macro equity hedges [Member] | Real estate [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | (471) | 696
Insurance and investment contract liabilities and macro equity hedges [Member] | Other invested assets [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | 1,820 | 3,076
Insurance and investment contract liabilities and macro equity hedges [Member] | Derivatives, including macro equity hedging program [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | (10,543) | (5,813)
FVTPL [Member] |  |
Disclosure of Investment Income [line items] |  |
Net Investment income | (38,737) | 1,775
Investment income | 6,450 | 7,364
Realized and unrealized gains (losses) on assets | (45,187) | (5,589)
FVTPL [Member] | Debt securities [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 6,221 | 5,645
Gains (losses) | (32,732) | (5,600)
Impairment loss, net | (11) | 28
FVTPL [Member] | Cash and short-term securities [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 40 | 12
Gains (losses) | 26 | 85
FVTPL [Member] | Public equities [Member] |  |
Disclosure of Investment Income [line items] |  |
Dividend income | 500 | 670
Gains (losses) | (3,819) | 3,221
FVTPL [Member] | Derivatives [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 494 | 1,085
Gains (losses) | (10,628) | (5,925)
FVTPL [Member] | Other invested assets [Member] |  |
Disclosure of Investment Income [line items] |  |
Gains (losses) | 1,172 | 2,554
FVTPL [Member] | Interest income [member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | 6,755 | 6,742
FVTPL [Member] | Dividend, rental and other income [member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | 500 | 670
FVTPL [Member] | Impairments, provisions and recoveries, net [Member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | (11) | 28
FVTPL [Member] | Other [Member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | (794) | (76)
FVTPL [Member] | Insurance and investment contract liabilities and macro equity hedges [Member] | Debt securities [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | (32,599) | (5,605)
FVTPL [Member] | Insurance and investment contract liabilities and macro equity hedges [Member] | Public equities [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | (3,626) | 3,187
FVTPL [Member] | Insurance and investment contract liabilities and macro equity hedges [Member] | Other invested assets [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | 1,572 | 2,628
FVTPL [Member] | Insurance and investment contract liabilities and macro equity hedges [Member] | Derivatives, including macro equity hedging program [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | (10,534) | (5,799)
AFS [Member] |  |
Disclosure of Investment Income [line items] |  |
Net Investment income | 672 | 704
Investment income | 706 | 654
Realized and unrealized gains (losses) on assets | (34) | 50
AFS [Member] | Debt securities [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 738 | 576
Gains (losses) | (549) | (266)
Impairment loss, net |  | 1
AFS [Member] | Cash and short-term securities [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 272 | 84
Gains (losses) | 85 | (22)
AFS [Member] | Public equities [Member] |  |
Disclosure of Investment Income [line items] |  |
Dividend income | 45 | 61
Gains (losses) | 201 | 250
Impairment loss, net | (14) | (3)
AFS [Member] | Other invested assets [Member] |  |
Disclosure of Investment Income [line items] |  |
Gains (losses) | 13 | 23
Impairment loss, net | (119) |
AFS [Member] | Interest income [member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | 1,010 | 661
AFS [Member] | Dividend, rental and other income [member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | 45 | 61
AFS [Member] | Impairments, provisions and recoveries, net [Member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | (133) | (2)
AFS [Member] | Other [Member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | (216) | (66)
AFS [Member] | Insurance and investment contract liabilities and macro equity hedges [Member] | Debt securities [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | (76) | 20
AFS [Member] | Insurance and investment contract liabilities and macro equity hedges [Member] | Public equities [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | 24 | 33
AFS [Member] | Insurance and investment contract liabilities and macro equity hedges [Member] | Other invested assets [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | 18 | (3)
Other [Member] |  |
Disclosure of Investment Income [line items] |  |
Net Investment income | 8,195 | 9,145
Investment income | 8,051 | 7,609
Other [Member] | Debt securities [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 66 | 9
Other [Member] | Mortgages [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 1,913 | 1,709
Gains (losses) | 57 | 133
Provision, net | 1 | 1
Other [Member] | Private placements [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 2,021 | 1,931
Gains (losses) | 335 | 270
Impairment loss, net | (4) | 45
Other [Member] | Policy loans [member] |  |
Disclosure of Investment Income [line items] |  |
Net Investment income | 385 | 366
Other [Member] | Loans to Bank clients [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 138 | 77
Provision, net | (4) | (2)
Other [Member] | Real estate [Member] |  |
Disclosure of Investment Income [line items] |  |
Rental income, net of depreciation | 452 | 453
Gains (losses) | (478) | 677
Other [Member] | Derivatives [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | (24) | (35)
Gains (losses) | (9) | (14)
Other [Member] | Other invested assets [Member] |  |
Disclosure of Investment Income [line items] |  |
Interest income | 26 | 57
Oil and gas, timber, agriculture and other income | 2,846 | 2,996
Gains (losses) | 474 | 527
Impairment loss, net |  | (55)
Other [Member] | Interest income [member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | 4,525 | 4,114
Other [Member] | Dividend, rental and other income [member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | 3,298 | 3,449
Other [Member] | Impairments, provisions and recoveries, net [Member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | (7) | (11)
Other [Member] | Other [Member] |  |
Disclosure of Investment Income [line items] |  |
Investment income | 235 | 57
Other [Member] | Insurance and investment contract liabilities and macro equity hedges [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | 144 | 1,536
Other [Member] | Insurance and investment contract liabilities and macro equity hedges [Member] | Mortgages [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | 58 | 133
Other [Member] | Insurance and investment contract liabilities and macro equity hedges [Member] | Private placements [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | 336 | 270
Other [Member] | Insurance and investment contract liabilities and macro equity hedges [Member] | Real estate [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | (471) | 696
Other [Member] | Insurance and investment contract liabilities and macro equity hedges [Member] | Other invested assets [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | 230 | 451
Other [Member] | Insurance and investment contract liabilities and macro equity hedges [Member] | Derivatives, including macro equity hedging program [Member] |  |
Disclosure of Investment Income [line items] |  |
Realized and unrealized gains (losses) on assets | $ (9) | $ (14)

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