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Future Policy Benefits (Short-Duration Contracts Historical Claims) (Details) | Dec. 31, 2023
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Group Life - Term |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Short-duration Insurance Contracts, Historical Claims Duration, Year One | 76.30%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two | 21.10%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three | 0.90%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four | 0.30%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five | 0.50%
Short-duration Insurance Contracts, Historical Claims Duration, Year Six | 0.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Seven | 0.10%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight | 0.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Nine | 0.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Ten | 0.00%
Group Life - Term | Asia |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Short-duration Insurance Contracts, Historical Claims Duration, Year One | 24.90%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two | 24.80%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three | 14.60%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four | 10.80%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five | 7.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Six | 3.50%
Short-duration Insurance Contracts, Historical Claims Duration, Year Seven | 3.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight | 2.10%
Short-duration Insurance Contracts, Historical Claims Duration, Year Nine | 1.30%
Short-duration Insurance Contracts, Historical Claims Duration, Year Ten | 0.90%
Group Long-Term Disability |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Short-duration Insurance Contracts, Historical Claims Duration, Year One | 5.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two | 24.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three | 14.90%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four | 8.30%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five | 6.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Six | 4.80%
Short-duration Insurance Contracts, Historical Claims Duration, Year Seven | 3.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight | 3.40%
Short-duration Insurance Contracts, Historical Claims Duration, Year Nine | 3.60%
Short-duration Insurance Contracts, Historical Claims Duration, Year Ten | 3.00%
Protection Life | Latin America |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Short-duration Insurance Contracts, Historical Claims Duration, Year One | 58.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two | 31.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three | 4.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four | 1.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five | 0.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Six | 0.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Seven | (0.10%)
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight | (0.70%)
Short-duration Insurance Contracts, Historical Claims Duration, Year Nine | (1.00%)
Short-duration Insurance Contracts, Historical Claims Duration, Year Ten | 0.30%
Protection Health | Latin America |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Short-duration Insurance Contracts, Historical Claims Duration, Year One | 84.50%
Short-duration Insurance Contracts, Historical Claims Duration, Year Two | 13.40%
Short-duration Insurance Contracts, Historical Claims Duration, Year Three | 0.70%
Short-duration Insurance Contracts, Historical Claims Duration, Year Four | 0.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Five | 0.30%
Short-duration Insurance Contracts, Historical Claims Duration, Year Six | 0.10%
Short-duration Insurance Contracts, Historical Claims Duration, Year Seven | 0.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight | 0.10%
Short-duration Insurance Contracts, Historical Claims Duration, Year Nine | 0.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Ten | 0.00%

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- Definition Percentage of average annual payout, after reinsurance, in the eighth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 4G -SubTopic 40 -Topic 944 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-4G + Details
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- Definition Percentage of average annual payout, after reinsurance, in the fifth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 4G -SubTopic 40 -Topic 944 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-4G + Details
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- Definition Percentage of average annual payout, after reinsurance, in the fourth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 4G -SubTopic 40 -Topic 944 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-4G + Details
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- Definition Percentage of average annual payout, after reinsurance, in the ninth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 4G -SubTopic 40 -Topic 944 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-4G + Details
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- Definition Percentage of average annual payout, after reinsurance, in the first year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 4G -SubTopic 40 -Topic 944 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-4G + Details
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