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v3.23.3

Market risk benefits (MRB Roll-Forward) (Details) - USD ($) $ in Millions |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jan. 01, 2021 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Market Risk Benefit [Line Items] |  |  |  |  |
Market Risk Benefit, Liability, beginning of period |  |  |  | $ 800 |
Market Risk Benefit, Liability, end of period |  | $ 770 |  | 770 |
Market risk benefits gains (losses) |  | (32) | $ 69 | (154) | $ 85
Variable Annuity |  |  |  |  |
Market Risk Benefit [Line Items] |  |  |  |  |
Market Risk Benefit, Liability, end of period | $ 1,163 |  |  |  |
Long-Duration Insurance, Other | Variable Annuity |  |  |  |  |
Market Risk Benefit [Line Items] |  |  |  |  |
Market Risk Benefit, Liability, beginning of period |  |  |  | 800 | 812
Balance, beginning of period, before effect of changes in the instrument-specific credit risk |  |  |  | 776 | 755
Interest rate changes |  |  |  | (117) | (561)
Effect of changes in equity markets |  |  |  | (69) | 633
Effect of changes in volatilities |  |  |  | 51 | 14
Market Risk Benefit, Increase (Decrease) from Future Expected Policyholder Behavior Assumption |  |  |  | 89 | 40
Effect of timing and all other |  |  |  | 19 | (29)
Balance, end of period, before effect of changes in the instrument-specific credit risk |  | 749 | 852 | 749 | 852
Effect of changes in the instrument-specific credit risk |  | 21 | 9 | 21 | 9
Market Risk Benefit, Liability, end of period |  | 770 | 861 | $ 770 | $ 861
Market risk benefit, weighted-average age of policyholders (age) |  |  |  | 73 years | 73 years
Market Risk Benefit, Net Amount at Risk |  | 2,138 | $ 2,885 | $ 2,138 | $ 2,885
Market Risk Benefits Other Gains (Losses) |  |  |  | $ (181) | $ 186
Long-Duration Insurance, Other | Variable Annuity | Measurement Input, Annuitization Rate [Member] |  |  |  |  |
Market Risk Benefit [Line Items] |  |  |  |  |
Market Risk Benefit, Increase (Decrease) from Future Expected Policyholder Behavior Assumption |  | $ 92 |  |  |

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- Definition Amount, before tax, of accumulated other comprehensive income (loss) (AOCI) from (increase) decrease in instrument-specific credit risk on contract or contract feature in long-duration contract issued by insurance entity protecting contract holder from other-than-nominal capital market risk and exposing insurance entity to other-than-nominal capital market risk. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29G -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29G Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480016/944-40-65-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7B Reference 4: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 13K -Subparagraph (k) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-13K + Details
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- Definition Amount, before effect of reinsurance and cumulative increase (decrease) in instrument-specific credit risk, of contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480016/944-40-65-2 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29G -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29G Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7B + Details
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