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DAC, VOBA, DSI, and DFEL (VOBA) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Changes in VOBA [Roll Forward] |  |  |
Balance as of beginning-of-year | $ 247 | $ 342 | $ 816
Business acquired (sold) through reinsurance | (288) |  |
Deferrals |  | 3 | 6
Amortization: |  |  |
Amortization, excluding unlocking | (94) | (105) | (114)
Unlocking | (7) | (205) | 140
Accretion of interest | 33 | 44 | 45
Adjustment related to realized (gains) losses | (3) |  | (1)
Adjustment related to unrealized (gains) losses | 305 | 168 | (550)
Balance as of end-of-year | $ 193 | $ 247 | $ 342
Interest accrual rate, low end | 4.20% | 4.20% | 4.20%
Interest accrual rate, high end | 6.90% | 6.90% | 6.90%

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- Definition States the assumed long-term market interest rate used in the determination of the present value of future profits on long-duration contracts acquired in a business combination, high end of range. + References No definition available. + Details
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- Definition States the assumed long-term market interest rate used in the determination of the present value of future profits on long-duration contracts acquired in a business combination, low end of range. + References No definition available. + Details
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- Definition Amount of addition (disposition) for present value of future profits of insurance contract acquired (sold) in business combination. + References No definition available. + Details
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- Definition The amount of adjustment to amortization of the present value of future profits asset arising from a revision in estimated gross profit (when such amount serves as the basis for allocating amortization of VOBA to reporting periods). + References No definition available. + Details
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- Definition Amount of amortization of the present value of future profits asset due to realized investment gains (losses). + References No definition available. + Details
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- Definition Amount of amortization of the present value of future profits asset due to unrealized investment gains (losses). + References No definition available. + Details
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- Definition Total amount of additions in present value of future profits asset from sources other than acquisitions of insurance entities during the income statement period. + References No definition available. + Details
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- Definition The amount of other amortization of the present value of future profits asset during the period. + References No definition available. + 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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- References No definition available. + Details
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- Definition Amount of amortization expense for present value of future profits of insurance contract acquired in business combination from accrued interest on unamortized balance. + References No definition available. + Details
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- Definition Amount, after accumulated amortization, of present value of future profits of insurance contract acquired in business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section S99 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=122135039&loc=d3e569990-122904 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.10) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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