XML 99 R80.htm IDEA: XBRL DOCUMENT
v3.23.1

Derivative Financial Instruments - Narrative (Details) | 3 Months Ended
--- | ---
Mar. 31, 2023 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Potential recoveries | $ 0
Contingent consideration term | 10 years

X
- Definition Disposal Group, Including Discontinued Operation, Contingent Consideration, Term + References No definition available. + Details
Name: | all_DisposalGroupIncludingDiscontinuedOperationContingentConsiderationTerm
Namespace Prefix: | all_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the potential amount of recoveries under sale of credit protection. + References No definition available. + Details
Name: | all_PotentialRecoveriesUnderCreditRiskDerivatives
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration