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Investments - Schedule of Residential Loans Segregated by Risk Rating Exposure and Non-accrual Loans by Amortized Cost (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Amortized Cost of Non-Accrual Loans [Abstract] |  |
Amortized cost of loans on non-accrual | $ 72 | $ 71
Residential mortgage loans |  |
Credit Quality Indicator Current Year [Abstract] |  |
2023 | 35 | 771
2022 | 956 | 900
2021 | 915 | 229
2020 | 225 | 223
2019 | 231 | 24
Prior | 212 | 33
Credit Quality Indicator Prior Year [Abstract] |  |
2022 | 35 | 771
2021 | 956 | 900
2020 | 915 | 229
2019 | 225 | 223
2018 | 231 | 24
Prior | 212 | 33
Total | 2,574 | 2,180
Amortized Cost of Non-Accrual Loans [Abstract] |  |
Amortized cost of loans on non-accrual | 63 | 62
Commercial mortgage loans |  |
Credit Quality Indicator Current Year [Abstract] |  |
Total | 2,456 | 2,407
Credit Quality Indicator Prior Year [Abstract] |  |
Total | 2,470 | 2,416
Amortized Cost of Non-Accrual Loans [Abstract] |  |
Amortized cost of loans on non-accrual | 9 | 9
Current (less than 30 days past due) | Residential mortgage loans |  |
Credit Quality Indicator Current Year [Abstract] |  |
2023 | 35 | 766
2022 | 950 | 884
2021 | 889 | 214
2020 | 209 | 185
2019 | 199 | 23
Prior | 209 | 33
Credit Quality Indicator Prior Year [Abstract] |  |
2022 | 35 | 766
2021 | 950 | 884
2020 | 889 | 214
2019 | 209 | 185
2018 | 199 | 23
Prior | 209 | 33
Total | 2,491 | 2,105
30-89 days past due | Residential mortgage loans |  |
Credit Quality Indicator Current Year [Abstract] |  |
2023 | 0 | 2
2022 | 3 | 7
2021 | 8 | 0
2020 | 3 | 4
2019 | 4 | 0
Prior | 2 | 0
Credit Quality Indicator Prior Year [Abstract] |  |
2022 | 0 | 2
2021 | 3 | 7
2020 | 8 | 0
2019 | 3 | 4
2018 | 4 | 0
Prior | 2 | 0
Total | 20 | 13
90 Days or more past due | Residential mortgage loans |  |
Credit Quality Indicator Current Year [Abstract] |  |
2023 | 0 | 3
2022 | 3 | 9
2021 | 18 | 15
2020 | 13 | 34
2019 | 28 | 1
Prior | 1 | 0
Credit Quality Indicator Prior Year [Abstract] |  |
2022 | 0 | 3
2021 | 3 | 9
2020 | 18 | 15
2019 | 13 | 34
2018 | 28 | 1
Prior | 1 | 0
Total | $ 63 | $ 62

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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 3B -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447 + Details
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- Definition Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 3B -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL120267963-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919232-210447 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 + Details
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