XML 129 R112.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Commitments And Contingencies (Narrative) (Details) - Equity Index Put Option [Member] - Standard & Poor's 500 [Member] | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) Item $ / Item
Derivative [Line Items] |
Number of equity index put option contracts | Item | 1
Probability of falling below strike price, percentage | 0.10%
Index | $ / Item | 4,766.18
Theoretical [Member] |
Derivative [Line Items] |
Maximum discount factor | 3.00%
Maximum payout occurs based on index value | $ 152,300,000
If Contracts Expire [Member] |
Derivative [Line Items] |
Settlement amount | $ 0

X
- References No definition available. + Details
Name: | re_DerivativeMaximumDiscountFactor
Namespace Prefix: | re_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | re_DerivativeSettlementAmount
Namespace Prefix: | re_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Equity Index Put Option Contract, Maximum Amount Payable + References No definition available. + Details
Name: | re_EquityIndexPutOptionContractMaximumAmountPayable
Namespace Prefix: | re_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | re_ProbabilityDerivativeWillFallBelowStrikePricePercentage
Namespace Prefix: | re_
Data Type: | dtr-types:percentItemType
Balance Type: | na
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_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of price risk derivative instruments held by the entity at the reporting date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 + Details
Name: | us-gaap_NumberOfPriceRiskDerivativesHeld
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Specified interest rate, security price, commodity price, foreign exchange rate, index of prices or rates for a derivative contract but not the derivative contract itself. + References No definition available. + Details
Name: | us-gaap_UnderlyingDerivative
Namespace Prefix: | us-gaap_
Data Type: | srt-types:perUnitItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=re_EquityIndexPutOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ExternalCreditRatingByGroupingAxis=re_StandardAndPoors500Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=re_TheoreticalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=re_IfContractsExpireMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |