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Segmented Information - Operating Results by Segment (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Disclosure of operating segments [line items] |  |
Gross premiums: | $ 20,981 | $ 19,838
Less: ceded premiums | 2,339 | 4,557
Interest income on plan assets | 2,389 | 8,211
Fee income | 5,966 | 5,842
Total revenue | 26,997 | 29,334
Total benefits and expenses | 23,486 | 26,545
Income tax expense (benefit) | 597 | 302
Total net income (loss) | 2,914 | 2,487
Less: Net income (loss) attributable to participating policyholders (Note 21) | 298 | 245
Shareholders' net income (loss) | 2,616 | 2,242
Consolidation adjustments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 0 | 0
Less: ceded premiums | 0 | 0
Interest income on plan assets | (26) | (79)
Fee income | (126) | (72)
Total revenue | (152) | (151)
Total benefits and expenses | (152) | (151)
Income tax expense (benefit) | 0 | 0
Total net income (loss) | 0 | 0
Less: Net income (loss) attributable to participating policyholders (Note 21) | 0 | 0
Shareholders' net income (loss) | 0 | 0
Annuities |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 3,183 | 2,488
Annuities | Consolidation adjustments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 0 | 0
Life insurance |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 8,677 | 8,831
Life insurance | Consolidation adjustments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 0 | 0
Health insurance |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 9,121 | 8,519
Health insurance | Consolidation adjustments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 0 | 0
SLF Canada | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 13,373 |
Less: ceded premiums | 1,487 | 3,871
Interest income on plan assets | 1,942 | 4,133
Fee income | 1,240 | 1,132
Total revenue | 15,068 | 13,267
Total benefits and expenses | 13,497 | 11,894
Income tax expense (benefit) | 308 | 197
Total net income (loss) | 1,263 | 1,176
Less: Net income (loss) attributable to participating policyholders (Note 21) | 321 | 213
Shareholders' net income (loss) | 942 | 963
SLF Canada | Annuities | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 3,261 | 2,464
SLF Canada | Life insurance | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 4,796 | 4,493
SLF Canada | Health insurance | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 5,316 | 4,916
SLF U.S.(1) | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 5,400 | 5,306
Less: ceded premiums | 597 | 436
Interest income on plan assets | 305 | 1,864
Fee income | 73 | 103
Total revenue | 5,181 | 6,837
Total benefits and expenses | 5,183 | 7,369
Income tax expense (benefit) | (19) | (392)
Total net income (loss) | 17 | (140)
Less: Net income (loss) attributable to participating policyholders (Note 21) | (35) | 4
Shareholders' net income (loss) | 52 | (144)
SLF U.S.(1) | Annuities | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 0 | 0
SLF U.S.(1) | Life insurance | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 1,633 | 1,736
SLF U.S.(1) | Health insurance | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 3,767 | 3,570
SLF Asset Management |  |
Disclosure of operating segments [line items] |  |
Total revenue | 4,124 | 4,082
SLF Asset Management | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 0 | 0
Less: ceded premiums | 0 | 0
Interest income on plan assets | 13 | 45
Fee income | 4,111 | 4,037
Total revenue | 4,124 | 4,082
Total benefits and expenses | 2,930 | 2,976
Income tax expense (benefit) | 284 | 453
Total net income (loss) | 910 | 653
Less: Net income (loss) attributable to participating policyholders (Note 21) | 0 | 0
Shareholders' net income (loss) | 910 | 653
SLF Asset Management | Annuities | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 0 | 0
SLF Asset Management | Life insurance | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 0 | 0
SLF Asset Management | Health insurance | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 0 | 0
SLF Asia(1) | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 2,179 | 2,527
Less: ceded premiums | 232 | 226
Interest income on plan assets | 76 | 1,722
Fee income | 514 | 524
Total revenue | 2,537 | 4,547
Total benefits and expenses | 1,919 | 3,679
Income tax expense (benefit) | 51 | 62
Total net income (loss) | 567 | 806
Less: Net income (loss) attributable to participating policyholders (Note 21) | 12 | 28
Shareholders' net income (loss) | 555 | 778
SLF Asia(1) | Annuities | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 1 | 0
SLF Asia(1) | Life insurance | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 2,154 | 2,508
SLF Asia(1) | Health insurance | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 24 | 19
Corporate |  |
Disclosure of operating segments [line items] |  |
Total revenue | 239 | 752
Corporate | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 29 | 132
Less: ceded premiums | 23 | 24
Interest income on plan assets | 79 | 526
Fee income | 154 | 118
Total revenue | 239 | 752
Total benefits and expenses | 109 | 778
Income tax expense (benefit) | (27) | (18)
Total net income (loss) | 157 | (8)
Less: Net income (loss) attributable to participating policyholders (Note 21) | 0 | 0
Shareholders' net income (loss) | 157 | (8)
Corporate | Annuities | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | (79) | 24
Corporate | Life insurance | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | 94 | 94
Corporate | Health insurance | Reportable segments |  |
Disclosure of operating segments [line items] |  |
Gross premiums: | $ 14 | $ 14

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