XML 120 R103.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Supplemental Cash Flow Information - Schedule of Activities Resulting from Management of Proceeds (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Net change in proceeds managed |  |
Net change in fixed income securities | $ (31) | $ 111
Net change in short-term investments | (127) | 93
Operating cash flow (used) provided | (158) | 204
Net change in liabilities |  |
Liabilities for collateral, beginning of period | (1,891) | (2,011)
Liabilities for collateral, end of period | (2,049) | (1,807)
Operating cash flow provided (used) | $ 158 | $ (204)

X
- Definition Change in Liabilities for Collateral [Roll Forward] + References No definition available. + Details
Name: | all_ChangeinLiabilitiesforCollateralRollForward
Namespace Prefix: | all_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The net operating cash flow provided by (used in) the net change in liabilities for collateral. + References No definition available. + Details
Name: | all_NetCashProvidedByUsedInOperatingActivitiesLiabilitiesForCollateral
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The net operating cash flow provided or used related to collateral received in conjunction with the entity's securities lending and over-the-counter derivatives. + References No definition available. + Details
Name: | all_NetCashProvidedByUsedInOperatingActivitiesProceedsManagedCollateral
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Net Change In Fixed Income Term Investments Of Proceeds Managed Collateral + References No definition available. + Details
Name: | all_NetChangeInFixedIncomeTermInvestmentsOfProceedsManagedCollateral
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition The net change in short-term investments from the proceeds managed related to collateral received in conjunction with the entity's securities lending and over-the-counter derivatives. + References No definition available. + Details
Name: | all_NetChangeInShortTermInvestmentsOfProceedsManagedCollateral
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The liability to return cash and securities received as collateral in conjunction with securities lending and over-the-counter derivatives. + References No definition available. + Details
Name: | all_ObligationToReturnCollateralSecuritiesLendingAndDerivatives
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant