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v3.23.1

Future Policy Benefits -Summary Balances and Changes in the Present Value of Expected Net Premiums and Present Value (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |  |
Future policy benefits | $ 5,371 | $ 5,021 | $ 4,918 |
Less: Reinsurance recoverable |  |  |  | $ 1,115
Traditional Life |  |  |  |
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] |  |  |  |
Balance, beginning of year | 797 | 1,020 | 1,152 |
Beginning balance of original discount rate | 974 | 1,045 | 1,131 |
Effect of actual variances from expected experience |  | 3 | 33 | 25
Balance adjusted for variances from expectation |  | 977 | 1,078 | 1,156
Interest accrual | 5 | 20 | 22 |
Benefits payments | 30 | 124 | 133 |
Ending Balance at original discount rate | 952 | 974 | 1,045 |
Effect of changes in discount rate assumptions | 158 | 177 | 25 |
Balance, end of year | 794 | 797 | 1,020 |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |  |
Balance, beginning of year | 2,151 | 2,772 | 3,105 |
Beginning balance of original discount rate | 2,665 | 2,806 | 2,995 |
Effect of actual variances from expected experience |  | (7) | 13 | (14)
Balance adjusted for variances from expectation |  | 2,658 | 2,819 | 2,981
Interest accrual | 14 | 59 | 62 |
Benefits payments | (48) | (213) | (237) |
Ending Balance at original discount rate | 2,624 | 2,665 | 2,806 |
Effect of changes in discount rate assumptions | 448 | 514 | 34 |
Balance, end of year | 2,176 | 2,151 | 2,772 |
Future policy benefits | 1,382 | 1,354 | 1,752 |
Less: Reinsurance recoverable | 510 | 515 | 670 | 793
Liability for Future Policy Benefit, after Reinsurance, Total | $ 872 | $ 839 | $ 1,082 |
Weighted-average duration of liability for future policyholder benefits (years) | 7 years 6 months 10 days | 7 years 6 months 29 days | 8 years 6 months 14 days |
Immediate Annuities |  |  |  |
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] |  |  |  |
Balance, beginning of year |  | $ 1,954 | $ 2,153 |
Beginning balance of original discount rate |  | 1,935 | 2,040 |
Effect of actual variances from expected experience |  |  |  | (47)
Balance adjusted for variances from expectation |  |  |  | 1,993
Issuances |  |  | 18 |
Interest accrual |  |  | 60 |
Benefits payments |  |  | (136) |
Ending Balance at original discount rate |  |  | 1,935 |
Balance, end of year |  |  | 1,954 |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |  |
Balance, beginning of year | $ 1,429 | 1,954 |  |
Beginning balance of original discount rate | 1,858 | 1,935 |  |
Effect of changes in cash flow assumptions |  | 0 | 0 |
Effect of actual variances from expected experience |  | (7) | (26) |
Balance adjusted for variances from expectation |  | 1,851 | 1,909 |
Issuances | 5 | 26 |  |
Interest accrual | 16 | 60 |  |
Benefits payments | (31) | (137) |  |
Ending Balance at original discount rate | 1,841 | 1,858 | 1,935 |
Effect of changes in discount rate assumptions | (389) | 429 | (19) |
Balance, end of year | 1,452 | 1,429 | 1,954 |
Future policy benefits | 1,452 | 1,429 | 1,954 |
Less: Reinsurance recoverable | 204 | 218 | 293 | 322
Liability for Future Policy Benefit, after Reinsurance, Total | $ 1,248 | $ 1,211 | $ 1,661 |
Weighted-average duration of liability for future policyholder benefits (years) | 12 years 2 months 4 days | 11 years 9 months 3 days | 13 years 7 months 9 days |
PRT |  |  |  |
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] |  |  |  |
Balance, beginning of year |  | $ 1,148 | $ 0 |
Beginning balance of original discount rate |  | 1,151 | 0 |
Effect of actual variances from expected experience |  |  |  | 0
Balance adjusted for variances from expectation |  |  |  | $ 0
Issuances |  |  | 1,155 |
Interest accrual |  |  | 2 |
Benefits payments |  |  | (6) |
Ending Balance at original discount rate |  |  | 1,151 |
Balance, end of year |  |  | 1,148 |
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] |  |  |  |
Balance, beginning of year | $ 2,165 | 1,148 |  |
Beginning balance of original discount rate | 2,475 | 1,151 |  |
Effect of changes in cash flow assumptions |  | (1) | (20) |
Effect of actual variances from expected experience |  | (3) | 2 |
Balance adjusted for variances from expectation |  | 2,471 | 1,133 |
Issuances | 268 | 1,418 |  |
Interest accrual | 23 | 50 |  |
Benefits payments | (55) | (126) |  |
Ending Balance at original discount rate | 2,707 | 2,475 | 1,151 |
Effect of changes in discount rate assumptions | (251) | 310 | 3 |
Balance, end of year | 2,456 | 2,165 | 1,148 |
Future policy benefits | 2,456 | 2,165 | 1,148 |
Less: Reinsurance recoverable | 0 | 0 | 0 |
Liability for Future Policy Benefit, after Reinsurance, Total | $ 2,456 | $ 2,165 | $ 1,148 |
Weighted-average duration of liability for future policyholder benefits (years) | 8 years 25 days | 8 years 1 month 2 days | 8 years 9 months |

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- Definition Amount, before tax, of accumulated other comprehensive income (loss) (AOCI) from (increase) decrease in expected future policy benefit component of liability for future policy benefit from change in discount rate. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 55 -Paragraph 29E -URI https://asc.fasb.org/extlink&oid=126561865&loc=SL117819541-158441 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 55 -Paragraph 13I -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=126561865&loc=SL117783724-158441 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 6 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124506351&loc=d3e14931-158439 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(1) -URI https://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641 + Details
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- Definition Amount of cumulative increase (decrease) in expected future policy benefit and expense component for liability of future policy benefit from cash flow assumption change for future cash flows. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 55 -Paragraph 13I -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=126561865&loc=SL117783724-158441 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(1) -URI https://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 55 -Paragraph 29E -URI https://asc.fasb.org/extlink&oid=126561865&loc=SL117819541-158441 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 6 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124506351&loc=d3e14931-158439 + Details
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- Definition Amount of interest expense for expected future policy benefit and expense component of liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 55 -Paragraph 13I -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126561865&loc=SL117783724-158441 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 55 -Paragraph 29E -URI https://asc.fasb.org/extlink&oid=126561865&loc=SL117819541-158441 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 6 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124506351&loc=d3e14931-158439 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(1) -URI https://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641 + Details
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- Definition Amount of increase in expected future policy benefit and expense component of liability for future policy benefit from contract issuance. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 55 -Paragraph 13I -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126561865&loc=SL117783724-158441 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 55 -Paragraph 29E -URI https://asc.fasb.org/extlink&oid=126561865&loc=SL117819541-158441 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 6 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124506351&loc=d3e14931-158439 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 65 -Paragraph 2 -Subparagraph (g)(1) -URI https://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641 + Details
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