XML 77 R59.htm IDEA: XBRL DOCUMENT
v3.24.3

Investments - Schedule of Credit Losses Recognized in Net Income (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Realized capital gains and losses by asset type |  |  |  |
Total fixed income securities | $ (12) | $ (20) | $ (143) | $ (69)
Total credit losses by asset type | (12) | (19) | (144) | (68)
Commitments to fund commercial mortgage loans and bank loans | 0 | (1) | 1 | (1)
Fixed income securities |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total fixed income securities | (3) | (7) | (4) | (23)
Municipal |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total fixed income securities | (2) | 0 | (2) | 0
Corporate |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total fixed income securities | (1) | (7) | (2) | (23)
Mortgage loans |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | (1) | (1) | 0 | (4)
Limited partnership interests |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | (8) | (9) | (24) | (25)
Bank loans |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | 0 | (2) | 5 | (16)
Real estate |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | 0 | 0 | 2 | 0
Other assets |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | $ 0 | $ 0 | $ (123) | $ 0

X
- Definition Allowance For Credit Loss, Credit Loss By Asset Type + References No definition available. + Details
Name: | all_AllowanceForCreditLossCreditLossByAssetType
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Allowance For Credit Loss, Credit Loss Recognized In Net Income + References No definition available. + Details
Name: | all_AllowanceForCreditLossCreditLossRecognizedInNetIncome
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Other than Temporary Impairment Losses by Asset Type + References No definition available. + Details
Name: | all_OtherThanTemporaryImpairmentLossesByAssetTypeLineItems
Namespace Prefix: | all_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Unfunded Loan Commitments + References No definition available. + Details
Name: | all_UnfundedLoanCommitments
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_FixedIncomeSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_MortgagesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=srt_PartnershipInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=all_BankLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_RealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_OtherAggregatedInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |