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Future Policy Benefits - Schedule of Liability For Future Policy Benefit Expected Future Policy Benefit Undiscounted (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Mar. 31, 2024
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Traditional Life |  |
Undiscounted |  |
Expected future benefit payments | $ 2,720 | $ 2,874
Expected future gross premiums | 923 | 1,042
Discounted |  |
Expected future benefit payments | 1,938 | 2,013
Expected future gross premiums | 671 | 751
Immediate annuities |  |
Undiscounted |  |
Expected future benefit payments | 3,168 | 3,271
Expected future gross premiums | 0 | 0
Discounted |  |
Expected future benefit payments | 1,297 | 1,371
Expected future gross premiums | 0 | 0
PRT |  |
Undiscounted |  |
Expected future benefit payments | 10,535 | 8,344
Expected future gross premiums | 0 | 0
Discounted |  |
Expected future benefit payments | 6,360 | 4,899
Expected future gross premiums | $ 0 | $ 0

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- Definition Liability For Future Policy Benefit, Expected Future Policy Benefit, Discounted + References No definition available. + Details
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- Definition Liability For Future Policy Benefit, Expected Future Policy Benefit, Discounted, Before Reinsurance + References No definition available. + Details
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- Definition Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted + References No definition available. + Details
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- Definition Amount, before effect of reinsurance, of discounted balance for expected future gross premium component of liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 + Details
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- Definition Amount, before effect of reinsurance, of undiscounted balance for expected future gross premium component of liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E + Details
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- Definition Amount, before effect of reinsurance, of undiscounted balance for expected future policy benefit and expense component of liability for future policy benefit. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-6 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-29E + Details
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- Details
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- Details
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