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Policyholder Account Balances, Future Policy Benefits and Claims - Change in Unearned Income (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Deferred Income [Roll Forward] |  |
Beginning balance | $ 489 | $ 410
Deferral of revenue | 121 | 112
Amortization | (40) | (33)
Ending balance | 570 | 489
Universal Life Insurance |  |
Deferred Income [Roll Forward] |  |
Beginning balance | 27 | 27
Deferral of revenue | 0 | 1
Amortization | (1) | (1)
Ending balance | 26 | 27
Variable Universal Life Insurance |  |
Deferred Income [Roll Forward] |  |
Beginning balance | 196 | 150
Deferral of revenue | 70 | 59
Amortization | (17) | (13)
Ending balance | 249 | 196
Indexed Universal Life Insurance |  |
Deferred Income [Roll Forward] |  |
Beginning balance | 266 | 233
Deferral of revenue | 51 | 52
Amortization | (22) | (19)
Ending balance | $ 295 | $ 266

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- Definition Amount of deferred income excluding obligation to transfer product and service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479432/944-30-50-2B Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 25 -Paragraph 2 -SubTopic 10 -Topic 470 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481174/470-10-25-2 + Details
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- Definition Amount of increase in deferred income not accounted for under Topic 606. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479432/944-30-50-2B Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 + Details
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- Definition Amount of revenue recognized previously reported as deferred income not accounted for under Topic 606. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479432/944-30-50-2B Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480016/944-40-65-2 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Details
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