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Contractholder Funds - Account Values by Range of Guaranteed Minimum Credit Rating (Details) $ in Millions | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
--- | --- | --- | --- | ---
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | $ 48,798 | $ 40,843 |  |
FIA |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 27,164 | 24,766 | $ 21,997 | $ 18,703
FIA | At Guaranteed Minimum |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 22,965 | 23,400 | 20,764 |
FIA | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 1,446 | 801 | 817 |
FIA | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 550 | 414 | 416 |
FIA | Greater Than 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 2,203 | 151 | 0 |
FIA | 0.00% To 1.50% |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 26,315 | 24,210 | 21,353 |
FIA | 0.00% To 1.50% | At Guaranteed Minimum |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 22,392 | 22,848 | 20,162 |
FIA | 0.00% To 1.50% | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 1,444 | 801 | 803 |
FIA | 0.00% To 1.50% | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 526 | 410 | 388 |
FIA | 0.00% To 1.50% | Greater Than 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 1,953 | 151 | 0 |
FIA | 1.51% To 2.50% |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 471 | 163 | 207 |
FIA | 1.51% To 2.50% | At Guaranteed Minimum |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 196 | 162 | 171 |
FIA | 1.51% To 2.50% | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 1 | 0 | 11 |
FIA | 1.51% To 2.50% | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 24 | 1 | 25 |
FIA | 1.51% To 2.50% | Greater Than 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 250 | 0 | 0 |
FIA | Greater Than 2.50% |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 378 | 393 | 437 |
FIA | Greater Than 2.50% | At Guaranteed Minimum |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 377 | 390 | 431 |
FIA | Greater Than 2.50% | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 1 | 0 | 3 |
FIA | Greater Than 2.50% | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 0 | 3 | 3 |
FIA | Greater Than 2.50% | Greater Than 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 0 | 0 | 0 |
Fixed Rate Annuities |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 13,443 | 9,358 | 6,367 | 5,142
Fixed Rate Annuities | At Guaranteed Minimum |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 921 | 1,016 | 965 |
Fixed Rate Annuities | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 35 | 50 | 185 |
Fixed Rate Annuities | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 1,559 | 1,905 | 1,990 |
Fixed Rate Annuities | Greater Than 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 10,928 | 6,387 | 3,227 |
Fixed Rate Annuities | 0.00% To 1.50% |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 11,851 | 8,292 | 5,177 |
Fixed Rate Annuities | 0.00% To 1.50% | At Guaranteed Minimum |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 23 | 10 | 2 |
Fixed Rate Annuities | 0.00% To 1.50% | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 25 | 32 | 28 |
Fixed Rate Annuities | 0.00% To 1.50% | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 1,532 | 1,871 | 1,928 |
Fixed Rate Annuities | 0.00% To 1.50% | Greater Than 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 10,271 | 6,379 | 3,219 |
Fixed Rate Annuities | 1.51% To 2.50% |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 489 | 54 | 62 |
Fixed Rate Annuities | 1.51% To 2.50% | At Guaranteed Minimum |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 5 | 9 | 9 |
Fixed Rate Annuities | 1.51% To 2.50% | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 8 | 14 | 15 |
Fixed Rate Annuities | 1.51% To 2.50% | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 23 | 30 | 37 |
Fixed Rate Annuities | 1.51% To 2.50% | Greater Than 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 453 | 1 | 1 |
Fixed Rate Annuities | Greater Than 2.50% |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 1,103 | 1,012 | 1,128 |
Fixed Rate Annuities | Greater Than 2.50% | At Guaranteed Minimum |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 893 | 997 | 954 |
Fixed Rate Annuities | Greater Than 2.50% | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 2 | 4 | 142 |
Fixed Rate Annuities | Greater Than 2.50% | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 4 | 4 | 25 |
Fixed Rate Annuities | Greater Than 2.50% | Greater Than 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 204 | 7 | 7 |
Universal Life |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 2,391 | 2,112 | 1,907 | $ 1,696
Universal Life | At Guaranteed Minimum |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 2,348 | 2,047 | 1,845 |
Universal Life | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 21 | 47 | 48 |
Universal Life | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 1 | 1 | 1 |
Universal Life | Greater Than 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 21 | 17 | 13 |
Universal Life | 0.00% To 1.50% |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 2,013 | 1,721 | 1,501 |
Universal Life | 0.00% To 1.50% | At Guaranteed Minimum |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 1,987 | 1,701 | 1,486 |
Universal Life | 0.00% To 1.50% | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 5 | 3 | 2 |
Universal Life | 0.00% To 1.50% | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 0 | 0 | 0 |
Universal Life | 0.00% To 1.50% | Greater Than 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 21 | 17 | 13 |
Universal Life | 1.51% To 2.50% |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 0 | 0 | 0 |
Universal Life | 1.51% To 2.50% | At Guaranteed Minimum |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 0 | 0 | 0 |
Universal Life | 1.51% To 2.50% | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 0 | 0 | 0 |
Universal Life | 1.51% To 2.50% | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 0 | 0 | 0 |
Universal Life | 1.51% To 2.50% | Greater Than 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 0 | 0 | 0 |
Universal Life | Greater Than 2.50% |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 378 | 391 | 406 |
Universal Life | Greater Than 2.50% | At Guaranteed Minimum |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 361 | 346 | 359 |
Universal Life | Greater Than 2.50% | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 16 | 44 | 46 |
Universal Life | Greater Than 2.50% | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | 1 | 1 | 1 |
Universal Life | Greater Than 2.50% | Greater Than 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Contractholder funds | $ 0 | $ 0 | $ 0 |
Minimum | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Policyholder account balance, above guaranteed minimum crediting rate | 0.0001 | 0.0001 | 0.0001 |
Minimum | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Policyholder account balance, above guaranteed minimum crediting rate | 0.0051 | 0.0051 |  |
Minimum | Greater Than 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Policyholder account balance, above guaranteed minimum crediting rate | 0.0150 | 0.0150 | 0.0150 |
Maximum | Range from 0001 to 0050 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Policyholder account balance, above guaranteed minimum crediting rate | 0.0050 | 0.0050 | 0.0050 |
Maximum | Range from 0051 to 0150 |  |  |  |
Policyholder Account Balance [Line Items] |  |  |  |
Policyholder account balance, above guaranteed minimum crediting rate | 0.0150 | 0.0150 |  |

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