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Supplementary Insurance Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost |  | $ 3,616 | $ 3,512 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense |  | 54,729 | 51,383 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Policy Claim and Benefit Payable |  | 6,413 | 5,711 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue |  | 11,694 | 11,297 | $ 10,544
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income |  | 2,575 | 2,520 | 2,139
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses |  | 11,779 | 10,894 | 9,744
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost |  | 383 | 330 | 423
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense | [1] | 1,881 | 1,944 | 1,862
US Traditional Segment Reporting Information [Member] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost |  | 1,816 | 1,806 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense |  | 12,245 | 11,969 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Policy Claim and Benefit Payable |  | 2,578 | 2,143 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue |  | 5,838 | 5,729 | 5,534
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income |  | 714 | 769 | 730
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses |  | 5,979 | 5,339 | 5,131
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost |  | 200 | 199 | 180
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense | [1] | 679 | 697 | 698
US Non-Traditional Segment Reporting Information [Member] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost |  | 255 | 313 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense |  | 23,104 | 23,728 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Policy Claim and Benefit Payable |  | 18 | 18 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue |  | 53 | 39 | 27
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income |  | 999 | 931 | 706
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses |  | 764 | 737 | 442
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost |  | 52 | 31 | 109
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense | [1] | 109 | 113 | 106
Canada Traditional Segment Reporting Information [Member] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost |  | 195 | 200 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense |  | 3,474 | 3,260 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Policy Claim and Benefit Payable |  | 292 | 219 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue |  | 1,052 | 1,066 | 1,024
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income |  | 207 | 205 | 199
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses |  | 909 | 857 | 848
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost |  | 16 | 12 | 13
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense | [1] | 201 | 249 | 251
Canada Non-Traditional Segment Reporting Information [Member] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost |  | 0 | 0 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense |  | 16 | 23 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Policy Claim and Benefit Payable |  | 4 | 42 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue |  | 83 | 89 | 43
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income |  | 1 | 3 | 2
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses |  | 68 | 80 | 37
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost |  | 0 | 0 | 0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense | [1] | 3 | 4 | 2
EMEA Traditional Segment Reporting Information [Member] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost |  | 264 | 250 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense |  | 1,379 | 1,197 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Policy Claim and Benefit Payable |  | 1,389 | 1,109 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue |  | 1,555 | 1,442 | 1,424
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income |  | 72 | 73 | 66
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses |  | 1,389 | 1,205 | 1,233
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost |  | 31 | 36 | 27
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense | [1] | 186 | 199 | 179
EMEA Non-Traditional Segment Reporting Information [Member] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost |  | 0 | 0 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense |  | 5,881 | 5,703 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Policy Claim and Benefit Payable |  | 66 | 51 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue |  | 252 | 218 | 195
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income |  | 193 | 195 | 134
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses |  | 163 | 175 | 116
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost |  | 0 | 0 | 0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense | [1] | 50 | 52 | 37
Asia Pacific Traditional Segment Reporting Information [Member] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost |  | 1,045 | 927 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense |  | 3,568 | 2,837 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Policy Claim and Benefit Payable |  | 2,059 | 2,121 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue |  | 2,681 | 2,568 | 2,296
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income |  | 107 | 104 | 96
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses |  | 2,293 | 2,317 | 1,885
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost |  | 65 | 36 | 92
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense | [1] | 274 | 223 | 262
Asia Pacific Non-Traditional Segment Reporting Information [Member] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost |  | 41 | 16 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense |  | 4,187 | 2,215 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Policy Claim and Benefit Payable |  | 2 | 2 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue |  | 180 | 146 | 1
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income |  | 85 | 46 | 40
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses |  | 206 | 162 | 40
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost |  | 19 | 16 | 2
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense | [1] | 25 | 27 | 19
Corporate And Other Segment Reporting Information [Member] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items] |  |  |  |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost |  | 0 | 0 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense |  | 875 | 451 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Policy Claim and Benefit Payable |  | 5 | 6 |
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue |  | 0 | 0 | 0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income |  | 197 | 194 | 166
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses |  | 8 | 22 | 12
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost |  | 0 | 0 | 0
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense | [1] | $ 354 | $ 380 | $ 308
[1] | Includes policy acquisition costs and other insurance expenses, excluding amortization of DAC. Also includes other operating expenses, interest expense, and collateral finance and securitization expense.

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