XML 75 R57.htm IDEA: XBRL DOCUMENT
v3.21.2

Investments - OTTI losses by asset type (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Realized capital gains and losses by asset type |  |  |  |
Fixed income securities | $ 12 | $ 1 | $ 14 | $ (36)
Total credit losses by asset type | 12 | 0 | 14 | (36)
Commitments to fund commercial mortgage loans, bank loans and agent loans | 0 | 1 | 0 | 0
Fixed income securities |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Fixed income securities | (1) | (1) | 1 | (3)
Corporate |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Fixed income securities | (1) | 0 | 0 | (1)
ABS |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Fixed income securities | 0 | (2) | 1 | (2)
MBS |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Fixed income securities | 0 | 1 | 0 | 0
Mortgage loans |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | 11 | 6 | 17 | (3)
Limited partnership interests |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | 0 | (1) | 0 | (6)
Bank loans, net |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | 3 | (4) | (3) | (24)
Agent loans, net |  |  |  |
Realized capital gains and losses by asset type |  |  |  |
Total credit losses by asset type | $ (1) | $ 0 | $ (1) | $ 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_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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