XML 136 R121.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Statutory Requirements (Narrative) (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Statutory Accounting Practices [Line Items] |  |
Assets held in trust | $ 8,700,000,000 | $ 8,100,000,000
U.S. |  |
Statutory Accounting Practices [Line Items] |  |
Unrestricted net assets | 81,981,000 | 72,272,000
New York | Multi-Beneficiary Reinsurance Trust | Renaissance Reinsurance Ltd. |  |
Statutory Accounting Practices [Line Items] |  |
Assets held in trust | 1,200,000,000 | 1,300,000,000
New York | Multi-Beneficiary Reinsurance Trust | Renaissance Reinsurance Ltd. | Low |  |
Statutory Accounting Practices [Line Items] |  |
Assets held in trust | 531,800,000 | 878,200,000
New York | Multi-Beneficiary Reinsurance Trust | DaVinci Reinsurance Ltd. |  |
Statutory Accounting Practices [Line Items] |  |
Assets held in trust | 272,000,000 | 289,600,000
New York | Multi-Beneficiary Reinsurance Trust | DaVinci Reinsurance Ltd. | Low |  |
Statutory Accounting Practices [Line Items] |  |
Assets held in trust | 182,300,000 | 270,500,000
New York | Multi-Beneficiary Reduced Collateral Reinsurance Trust | Renaissance Reinsurance Ltd. |  |
Statutory Accounting Practices [Line Items] |  |
Assets held in trust | 136,300,000 | 74,400,000
New York | Multi-Beneficiary Reduced Collateral Reinsurance Trust | Renaissance Reinsurance Ltd. | Low |  |
Statutory Accounting Practices [Line Items] |  |
Assets held in trust | 128,100,000 | 70,000,000
New York | Multi-Beneficiary Reduced Collateral Reinsurance Trust | RenaissanceRe Europe |  |
Statutory Accounting Practices [Line Items] |  |
Assets held in trust | 86,600,000 | 0
New York | Multi-Beneficiary Reduced Collateral Reinsurance Trust | RenaissanceRe Europe | Low |  |
Statutory Accounting Practices [Line Items] |  |
Assets held in trust | 75,800,000 | 0
New York | Multi-Beneficiary Reduced Collateral Reinsurance Trust | DaVinci Reinsurance Ltd. |  |
Statutory Accounting Practices [Line Items] |  |
Assets held in trust | 168,100,000 | 90,100,000
New York | Multi-Beneficiary Reduced Collateral Reinsurance Trust | DaVinci Reinsurance Ltd. | Low |  |
Statutory Accounting Practices [Line Items] |  |
Assets held in trust | $ 164,500,000 | $ 86,500,000
Florida | Multi-Beneficiary Reduced Collateral Reinsurance Trust | Renaissance Reinsurance Ltd. |  |
Statutory Accounting Practices [Line Items] |  |
Multi-beneficiary reduced collateral reinsurance trust collateral reduction | 20.00% |
Florida | Multi-Beneficiary Reduced Collateral Reinsurance Trust | RenaissanceRe Europe |  |
Statutory Accounting Practices [Line Items] |  |
Multi-beneficiary reduced collateral reinsurance trust collateral reduction | 20.00% |
Florida | Multi-Beneficiary Reduced Collateral Reinsurance Trust | DaVinci Reinsurance Ltd. |  |
Statutory Accounting Practices [Line Items] |  |
Multi-beneficiary reduced collateral reinsurance trust collateral reduction | 50.00% |

X
- Definition Reduction in collateral requirements of multi-beneficiary reinsurance trust to the percentage noted of the net outstanding insurance liabilities. + References No definition available. + Details
Name: | rnr_MultiBeneficiaryReducedCollateralReinsuranceTrustCollateralReduction
Namespace Prefix: | rnr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total amount of cash and securities held by third party trustees pursuant to terms of debt instruments or other agreements as of the date of each statement of financial position presented, which can be used by the trustee only to pay the noncurrent portion of specified obligations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(b)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
Name: | us-gaap_AssetsHeldInTrust
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_StatutoryAccountingPracticesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of dividends that can be declared or paid without approval of regulatory agency. + References No definition available. + Details
Name: | us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithoutRegulatoryApproval
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_StatutoryAccountingPracticesByJurisdictionAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatutoryAccountingPracticesByJurisdictionAxis=stpr_NY
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rnr_ReinsuranceTrustFundAxis=rnr_MultiBeneficiaryReinsuranceTrustMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=rnr_RenaissanceReinsuranceLtd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=rnr_DaVinciReinsuranceLtd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | rnr_ReinsuranceTrustFundAxis=rnr_MultiBeneficiaryReducedCollateralReinsuranceTrustMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=rnr_RenaissanceReEuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatutoryAccountingPracticesByJurisdictionAxis=stpr_FL
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |