XML 79 R66.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Derivative Instruments (Non Hedging Derivatives and Embedded Derivatives Effect on Income Statement) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | $ (10,572) | $ 56,295 | $ (11,042) | $ 116,818
Policy acquisition costs and other insurance expenses | (320,276) | (319,832) | (677,178) | (699,221)
Interest credited | 109,327 | 115,285 | 189,776 | 222,969
Other revenues | 83,959 | 73,992 | 159,256 | 142,149
Gain Loss On Investments Related To Change In Fair Value Of Derivatives Excluding Embedded Derivatives | (14,151) | 3,684 | (33,625) | (19,164)
Not Designated as Hedging Instrument |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | 16,497 | 13,197 | 50,770 | 65,012
Not Designated as Hedging Instrument | Interest Rate Swap [Member] |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | (8,600) | 14,289 | (35,171) | 11,677
Not Designated as Hedging Instrument | Financial Futures |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | (897) | (6,442) | (768) | (19,217)
Not Designated as Hedging Instrument | Foreign Currency Forwards |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | (262) | (351) | 61 | 553
Not Designated as Hedging Instrument | Consumer Price Index Swap [Member] |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | 1,041 | (4) | 3,227 | (9)
Not Designated as Hedging Instrument | Credit Default Swaps |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | 1,084 | 3,879 | 682 | 11,237
Not Designated as Hedging Instrument | Equity Options |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | (8,007) | (9,273) | (5,414) | (26,462)
Not Designated as Hedging Instrument | Longevity Swap [Member] |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Other revenues | 2,289 | 1,981 | 4,557 | 3,847
Not Designated as Hedging Instrument | Mortality Swap [Member] |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Other revenues | (799) | (395) | (799) | (790)
Not Designated as Hedging Instrument | Embedded Derivatives In Modified Coinsurance Or Funds Withheld Arrangements |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | 8,805 | 15,108 | 22,416 | 83,810
Not Designated as Hedging Instrument | Embedded Derivatives In Indexed Annuity [Member] |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Interest credited | 6,519 | 5,955 | 31,870 | 22,357
Not Designated as Hedging Instrument | Embedded Derivatives In Variable Annuity [Member] |  |  |  |
Income Affect Of Non Hedging Derivatives [Line Items] |  |  |  |
Total investment related gains (losses), net | $ 15,324 | $ 360 | $ 30,109 | $ 22,723

X
- Definition This item represents the amount recognized in investment related gains (losses) related to the change in the fair value of derivatives, excluding embedded derivatives. + References No definition available. + Details
Name: | rga_GainLossOnInvestmentsRelatedToChangeInFairValueOfDerivativesExcludingEmbeddedDerivatives
Namespace Prefix: | rga_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Changes in estimated fair value related to embedded derivatives Abstract. + References No definition available. + Details
Name: | rga_IncomeAffectOfNonHedgingDerivativesLineItems
Namespace Prefix: | rga_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Policy Acquisition Costs And Other Insurance Expenses + References No definition available. + Details
Name: | rga_PolicyAcquisitionCostsAndOtherInsuranceExpenses
Namespace Prefix: | rga_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of realized and unrealized gain (loss) on investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27405-111563 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(c),9(a)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
Name: | us-gaap_GainLossOnInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Interest allocated to policyholders holding contracts under which the insurer must provide a guaranteed yield. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6480726&loc=d3e6691-158385 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.6) -URI http://asc.fasb.org/extlink&oid=114873790&loc=SL114874131-224263 + Details
Name: | us-gaap_InterestCreditedToPolicyholdersAccountBalances
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of revenue and income classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.4) -URI http://asc.fasb.org/extlink&oid=114873790&loc=SL114874131-224263 + Details
Name: | us-gaap_OtherIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DerivativesNonHedgingInstrumentsAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DerivativesNonHedgingInstrumentsAxis=us-gaap_FutureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DerivativesNonHedgingInstrumentsAxis=us-gaap_ForeignExchangeForwardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DerivativesNonHedgingInstrumentsAxis=rga_ConsumerPriceIndexSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DerivativesNonHedgingInstrumentsAxis=us-gaap_CreditDefaultSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DerivativesNonHedgingInstrumentsAxis=us-gaap_EquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DerivativesNonHedgingInstrumentsAxis=rga_LongevitySwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DerivativesNonHedgingInstrumentsAxis=rga_MortalitySwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DerivativesNonHedgingInstrumentsAxis=rga_EmbeddedDerivativesInModifiedCoinsuranceOrFundsWithheldArrangementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DerivativesNonHedgingInstrumentsAxis=rga_EmbeddedDerivativesInIndexedAnnuityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rga_DerivativesNonHedgingInstrumentsAxis=rga_EmbeddedDerivativesInVariableAnnuityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |