XML 62 R52.htm IDEA: XBRL DOCUMENT
v3.23.3

Accounting Changes and Error Corrections (Impact by Segment) (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Dec. 31, 2021 | Jan. 01, 2021 | Dec. 31, 2020
--- | --- | --- | --- | --- | --- | ---
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  | $ 36,474 | $ 35,689 | $ 33,724 |  |  |
Deferred policy acquisition costs |  | 4,289 | 4,128 | 4,004 |  |  |
Life Insurance Product Line [Member] | Americas [Member] | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  | (658) |  | (413) |  |  |
Liability for Future Policy Benefit, after Reinsurance |  | 8,599 |  | 8,777 |  |  |
Future policy benefits |  | 9,257 |  | 9,190 |  |  |
Deferred policy acquisition costs |  | 2,160 | 2,087 | 2,047 | $ 1,947 |  |
Life Insurance Product Line [Member] | CANADA | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  | (259) |  | (256) |  |  |
Liability for Future Policy Benefit, after Reinsurance |  | 3,542 |  | 3,570 |  |  |
Future policy benefits |  | 3,801 |  | 3,826 |  |  |
Deferred policy acquisition costs |  | 169 | 171 | 166 | 191 |  |
Life Insurance Product Line [Member] | EMEA [Member] | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  | (33) |  | (26) |  |  |
Liability for Future Policy Benefit, after Reinsurance |  | 1,039 |  | 893 |  |  |
Future policy benefits |  | 1,072 |  | 919 |  |  |
Deferred policy acquisition costs |  | 331 | 294 | 262 | 270 |  |
Life Insurance Product Line [Member] | Asia Pacific [Member] | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  | (115) |  | (96) |  |  |
Liability for Future Policy Benefit, after Reinsurance |  | 2,237 |  | 2,087 |  |  |
Future policy benefits |  | 2,352 |  | 2,183 |  |  |
Deferred policy acquisition costs |  | 1,069 | 1,043 | 1,012 | 1,056 |  |
Insurance, Other | Americas [Member] | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  | 0 |  | 0 |  |  |
Liability for Future Policy Benefit, after Reinsurance |  | 4,456 |  | 3,827 |  |  |
Future policy benefits |  | 4,456 |  | 3,827 |  |  |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  | 225 | 263 | 283 | 254 |  |
Market Risk Benefit, Reinsurance Recoverable, after Allowance |  | 0 |  | 0 |  |  |
Market Risk Benefit, after Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  | 216 | 247 | 259 | 262 |  |
Deferred policy acquisition costs |  | 309 | 341 | 355 | 312 |  |
Insurance, Other | CANADA | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  | 0 |  | 0 |  |  |
Liability for Future Policy Benefit, after Reinsurance |  | 28 |  | 55 |  |  |
Future policy benefits |  | 28 |  | 55 |  |  |
Deferred policy acquisition costs |  | 0 | 0 | 0 | 0 |  |
Insurance, Other | EMEA [Member] | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  | 0 |  | 0 |  |  |
Liability for Future Policy Benefit, after Reinsurance |  | 4,968 |  | 3,905 |  |  |
Future policy benefits |  | 4,968 |  | 3,905 |  |  |
Deferred policy acquisition costs |  | 0 | 0 | 0 | 0 |  |
Insurance, Other | Asia Pacific [Member] | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  | 0 |  | 0 |  |  |
Liability for Future Policy Benefit, after Reinsurance |  | 4,853 |  | 4,186 |  |  |
Future policy benefits |  | 4,853 |  | 4,186 |  |  |
Deferred policy acquisition costs |  | $ 247 | 188 | $ 158 | 81 |  |
Accounting Standards Update 2018-12 |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  | 35,689 |  | 47,449 |  |
Deferred policy acquisition costs |  |  | 4,128 |  | 3,860 |  |
Accounting Standards Update 2018-12 | Previously Reported |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  | 35,220 |  | 35,782 |  |
Deferred policy acquisition costs |  |  | 3,974 |  | 3,690 |  |
Accounting Standards Update 2018-12 | Revision of Prior Period, Change in Accounting Principle, Adjustment |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  | 469 |  | 11,667 |  |
Deferred policy acquisition costs |  |  | 154 |  | 170 |  |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Retained Earnings [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | $ 1,462 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | Americas [Member] | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  |  | (421) |  | (697) | (1,123) |
Liability for Future Policy Benefit, after Reinsurance |  |  | 9,053 |  | 13,345 | 16,509 |
Future policy benefits |  |  | 9,474 |  | 14,042 | 17,632 |
Deferred policy acquisition costs |  |  | 2,087 |  | 1,947 |  |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | Americas [Member] | Other Segments | Previously Reported |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 10,444 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | Americas [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Retained Earnings [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [1] |  |  |  |  | 896 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | Americas [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Reclassification of Claims and Benefits payable |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [2] |  |  |  |  | 1,750 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | Americas [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Effect Of Changes In Discount Rate Assumptions |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 4,542 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | CANADA | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  |  | (265) |  | (367) | (386) |
Liability for Future Policy Benefit, after Reinsurance |  |  | 3,686 |  | 5,188 | 5,978 |
Future policy benefits |  |  | 3,951 |  | 5,555 | 6,364 |
Deferred policy acquisition costs |  |  | 171 |  | 191 |  |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | CANADA | Other Segments | Previously Reported |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 3,477 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | CANADA | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Retained Earnings [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [1] |  |  |  |  | 33 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | CANADA | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Reclassification of Claims and Benefits payable |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [2] |  |  |  |  | 203 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | CANADA | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Effect Of Changes In Discount Rate Assumptions |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 2,651 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | EMEA [Member] | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  |  | (31) |  | (34) | (85) |
Liability for Future Policy Benefit, after Reinsurance |  |  | 1,010 |  | 1,355 | 2,585 |
Future policy benefits |  |  | 1,041 |  | 1,389 | 2,670 |
Deferred policy acquisition costs |  |  | 294 |  | 270 |  |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | EMEA [Member] | Other Segments | Previously Reported |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 1,379 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | EMEA [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Retained Earnings [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [1] |  |  |  |  | 70 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | EMEA [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Reclassification of Claims and Benefits payable |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [2] |  |  |  |  | 901 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | EMEA [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Effect Of Changes In Discount Rate Assumptions |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 320 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | Asia Pacific [Member] | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  |  | (100) |  | (116) | (212) |
Liability for Future Policy Benefit, after Reinsurance |  |  | 2,248 |  | 2,895 | 4,207 |
Future policy benefits |  |  | 2,348 |  | 3,011 | 4,419 |
Deferred policy acquisition costs |  |  | 1,043 |  | 1,056 |  |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | Asia Pacific [Member] | Other Segments | Previously Reported |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 3,568 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | Asia Pacific [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Retained Earnings [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [1] |  |  |  |  | 463 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | Asia Pacific [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Reclassification of Claims and Benefits payable |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [2] |  |  |  |  | 1,160 |
Accounting Standards Update 2018-12 | Life Insurance Product Line [Member] | Asia Pacific [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Effect Of Changes In Discount Rate Assumptions |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | (772) |
Accounting Standards Update 2018-12 | Insurance, Other | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Retained Earnings [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 284 |
Accounting Standards Update 2018-12 | Insurance, Other | Americas [Member] | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  |  | 0 |  | 0 | 0 |
Liability for Future Policy Benefit, after Reinsurance |  |  | 3,819 |  | 4,947 | 5,883 |
Future policy benefits |  |  | 3,819 |  | 4,947 | 5,883 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  | 263 |  | 254 | 266 | $ 311
Market Risk Benefit, Reinsurance Recoverable, after Allowance |  |  | 0 |  | 0 | 0 |
Market Risk Benefit, after Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  | 247 |  | 262 | 266 | $ 266
Deferred policy acquisition costs |  |  | 341 |  | 312 | 368 |
Accounting Standards Update 2018-12 | Insurance, Other | Americas [Member] | Other Segments | Previously Reported |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 5,037 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Deferred policy acquisition costs |  |  |  |  |  | 254 |
Accounting Standards Update 2018-12 | Insurance, Other | Americas [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Retained Earnings [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [3] |  |  |  |  | 0 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 72 |
Accounting Standards Update 2018-12 | Insurance, Other | Americas [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | AOCI Attributable to Parent [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [4] |  |  |  |  | (28) |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | (45) |
Deferred policy acquisition costs | [4] |  |  |  |  | 114 |
Accounting Standards Update 2018-12 | Insurance, Other | Americas [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Reclassification of Claims and Benefits payable |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [5] |  |  |  |  | 17 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 239 |
Accounting Standards Update 2018-12 | Insurance, Other | Americas [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Effect Of Changes In Discount Rate Assumptions |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 857 |
Accounting Standards Update 2018-12 | Insurance, Other | CANADA | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  |  | 0 |  | 0 | 0 |
Liability for Future Policy Benefit, after Reinsurance |  |  | 54 |  | 81 | 49 |
Future policy benefits |  |  | 54 |  | 81 | 49 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Market Risk Benefit, Reinsurance Recoverable, after Allowance |  |  |  |  |  | 0 |
Market Risk Benefit, after Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Deferred policy acquisition costs |  |  | 0 |  | 0 | 0 |
Accounting Standards Update 2018-12 | Insurance, Other | CANADA | Other Segments | Previously Reported |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 16 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Deferred policy acquisition costs |  |  |  |  |  | 0 |
Accounting Standards Update 2018-12 | Insurance, Other | CANADA | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Retained Earnings [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [3] |  |  |  |  | 20 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Accounting Standards Update 2018-12 | Insurance, Other | CANADA | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | AOCI Attributable to Parent [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [4] |  |  |  |  | 0 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Deferred policy acquisition costs | [4] |  |  |  |  | 0 |
Accounting Standards Update 2018-12 | Insurance, Other | CANADA | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Reclassification of Claims and Benefits payable |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [5] |  |  |  |  | 4 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Accounting Standards Update 2018-12 | Insurance, Other | CANADA | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Effect Of Changes In Discount Rate Assumptions |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 9 |
Accounting Standards Update 2018-12 | Insurance, Other | EMEA [Member] | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  |  | 0 |  | 0 | 0 |
Liability for Future Policy Benefit, after Reinsurance |  |  | 4,634 |  | 6,729 | 6,991 |
Future policy benefits |  |  | 4,634 |  | 6,729 | 6,991 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Market Risk Benefit, Reinsurance Recoverable, after Allowance |  |  |  |  |  | 0 |
Market Risk Benefit, after Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Deferred policy acquisition costs |  |  | 0 |  | 0 | 0 |
Accounting Standards Update 2018-12 | Insurance, Other | EMEA [Member] | Other Segments | Previously Reported |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 5,657 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Deferred policy acquisition costs |  |  |  |  |  | 0 |
Accounting Standards Update 2018-12 | Insurance, Other | EMEA [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Retained Earnings [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [3] |  |  |  |  | 256 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Accounting Standards Update 2018-12 | Insurance, Other | EMEA [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | AOCI Attributable to Parent [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [4] |  |  |  |  | 0 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Deferred policy acquisition costs | [4] |  |  |  |  | 0 |
Accounting Standards Update 2018-12 | Insurance, Other | EMEA [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Reclassification of Claims and Benefits payable |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [5] |  |  |  |  | 67 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Accounting Standards Update 2018-12 | Insurance, Other | EMEA [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Effect Of Changes In Discount Rate Assumptions |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 1,011 |
Accounting Standards Update 2018-12 | Insurance, Other | Asia Pacific [Member] | Other Segments |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance |  |  | 0 |  | 0 | 0 |
Liability for Future Policy Benefit, after Reinsurance |  |  | 4,496 |  | 5,014 | 1,887 |
Future policy benefits |  |  | 4,496 |  | 5,014 | 1,887 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Market Risk Benefit, Reinsurance Recoverable, after Allowance |  |  |  |  |  | 0 |
Market Risk Benefit, after Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Deferred policy acquisition costs |  |  | $ 188 |  | $ 81 | 41 |
Accounting Standards Update 2018-12 | Insurance, Other | Asia Pacific [Member] | Other Segments | Previously Reported |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | 1,874 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Deferred policy acquisition costs |  |  |  |  |  | 41 |
Accounting Standards Update 2018-12 | Insurance, Other | Asia Pacific [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Retained Earnings [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [3] |  |  |  |  | 8 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Accounting Standards Update 2018-12 | Insurance, Other | Asia Pacific [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | AOCI Attributable to Parent [Member] |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [4] |  |  |  |  | 0 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Deferred policy acquisition costs | [4] |  |  |  |  | 0 |
Accounting Standards Update 2018-12 | Insurance, Other | Asia Pacific [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Reclassification of Claims and Benefits payable |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits | [5] |  |  |  |  | 2 |
Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change |  |  |  |  |  | 0 |
Accounting Standards Update 2018-12 | Insurance, Other | Asia Pacific [Member] | Other Segments | Revision of Prior Period, Change in Accounting Principle, Adjustment | Effect Of Changes In Discount Rate Assumptions |  |  |  |  |  |  |
Liability for Future Policy Benefit, by Product Segment [Line Items] |  |  |  |  |  |  |
Future policy benefits |  |  |  |  |  | $ 3 |
[1] | Includes adjustments for capping the net premium ratio at 100% and eliminating negative reserves on certain issue year cohorts.
[2] | Amount includes certain reclassifications to conform with the revised presentation upon adoption of ASU 2018-12, such as reclassifying claims and benefits payable on long-duration contracts to liability for future policy benefits.
[3] | Includes adjustments for capping the net premium ratio at 100% and eliminating negative reserves on certain issue year cohorts.
[4] | Adjustment to remove amounts associated with unrealized gains and losses previously recorded in AOCI (i.e., “shadow adjustments”).
[5] | Amount includes certain reclassifications to conform with the revised presentation upon adoption of ASU 2018-12, such as reclassifying claims and benefits payable on long-duration contracts to liability for future policy benefits.

X
- Definition Amount of deferred policy acquisition cost capitalized on contract remaining in force. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 2: http://www.xbrl.org/2003/role/disclosureRef -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 3: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479401/944-30-55-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(7)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 45 -Paragraph 1 -SubTopic 825 -Topic 944 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479408/944-825-45-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479432/944-30-50-2B + Details
Name: | us-gaap_DeferredPolicyAcquisitionCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after effect of reinsurance, of liability for future policy benefit. + References Reference 1: 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 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 -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-6 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitAfterReinsurance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitByProductSegmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after allowance for credit loss, recoverable under reinsurance 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 65 -Paragraph 2 -Subparagraph (g)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480016/944-40-65-2 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 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-6 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-6 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefitReinsuranceRecoverableAfterAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, before effect of reinsurance, of present value of future benefit to be paid to or on behalf of policyholder and related expense less present value of future net premium receivable under insurance contract. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 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 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-6 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(13)(a)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-6 + Details
Name: | us-gaap_LiabilityForFuturePolicyBenefits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after effect of reinsurance and cumulative increase (decrease) in instrument-specific credit risk, of contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29G -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29G Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480016/944-40-65-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7B + Details
Name: | us-gaap_MarketRiskBenefitAfterReinsuranceAndCumulativeIncreaseDecreaseFromInstrumentSpecificCreditRiskChange
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, before effect of reinsurance and cumulative increase (decrease) in instrument-specific credit risk, of contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480016/944-40-65-2 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29G -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29G Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7B + Details
Name: | us-gaap_MarketRiskBenefitBeforeReinsuranceAndCumulativeIncreaseDecreaseFromInstrumentSpecificCreditRiskChange
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after allowance for credit loss, recoverable under reinsurance for contract or contract feature in long-duration contract issued by insurance entity that both protects contract holder from other-than-nominal capital market risk and exposes insurance entity to other-than-nominal capital market risk. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 29G -Publisher FASB -URI https://asc.fasb.org//1943274/2147480046/944-40-55-29G Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 7B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480081/944-40-50-7B + Details
Name: | us-gaap_MarketRiskBenefitReinsuranceRecoverableAfterAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_LifeInsuranceSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_AmericasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_AllOtherSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=us-gaap_EMEAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_AsiaPacificMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=us-gaap_OtherInsuranceProductLineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201812Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RestatementAxis=srt_ScenarioPreviouslyReportedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RestatementAxis=srt_RevisionOfPriorPeriodChangeInAccountingPrincipleAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=rga_ReclassificationOfClaimsAndBenefitsPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=rga_EffectOfChangesInDiscountRateAssumptionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedOtherComprehensiveIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |