XML 63 R48.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Loss and Loss Adjustment Expense Reserves (Details) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($)
Liability for Claims and Claims Adjustment Expense [Line Items] |  |
Prior years | $ (62.5) | $ 1,110.5
Personal Lines | Personal auto business |  |
Liability for Claims and Claims Adjustment Expense [Line Items] |  |
Prior years | $ (235.0) | 870.0
Personal Lines | Personal auto business | Agency |  |
Liability for Claims and Claims Adjustment Expense [Line Items] |  |
Percent of prior year claims and claims adjustment expense | 0.60 |
Commercial Lines |  |
Liability for Claims and Claims Adjustment Expense [Line Items] |  |
Prior years | $ 140.0 | 224.0
Property |  |
Liability for Claims and Claims Adjustment Expense [Line Items] |  |
Prior years | 30.0 |
Short-Duration Insurance Contract, Accident Year 2023 |  |
Liability for Claims and Claims Adjustment Expense [Line Items] |  |
Prior years | (60.0) |
Short-Duration Insurance Contract, Accident Year 2022 |  |
Liability for Claims and Claims Adjustment Expense [Line Items] |  |
Prior years | $ (20.0) | 910.0
Short-Duration Insurance Contract, Accident Year 2021 |  |
Liability for Claims and Claims Adjustment Expense [Line Items] |  |
Prior years |  | $ 81.0

X
- Definition Percent of Prior Year Claims and Claims Adjustment Expense + References No definition available. + Details
Name: | pgr_PercentOfPriorYearClaimsAndClaimsAdjustmentExpense
Namespace Prefix: | pgr_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

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_LiabilityForClaimsAndClaimsAdjustmentExpenseLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-3 + Details
Name: | us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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

X
- Details
Name: | us-gaap_SubsegmentsAxis=pgr_AgencyChannelMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortDurationInsuranceContractAccidentYear2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortDurationInsuranceContractAccidentYear2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShortdurationInsuranceContractsAccidentYearAxis=us-gaap_ShortDurationInsuranceContractAccidentYear2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |