Name:	all_LiabilityForFuturePolicyBenefitsRelatedToDeficiency
Namespace Prefix:	all_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Premium Deficiency Charge For Immediate Annuities, After Tax

No definition available.

Name:	all_PremiumDeficiencyChargeForImmediateAnnuitiesAfterTax
Namespace Prefix:	all_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Account balance as of the balance sheet date of the portion of contract holder funds invested in equity, fixed income and balanced mutual funds that are maintained in accounts which are separate from the general account assets of the entity and that meet certain criteria.

No definition available.

Name:	all_SeparateAccountsAssetEquityFixedIncomeBalancedMutualFunds
Namespace Prefix:	all_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Account balance as of the balance sheet date of the portion of contract holder funds invested in money market mutual funds that are maintained in accounts which are separate from the general account assets of the entity and that meet certain criteria.

No definition available.

Name:	all_SeparateAccountsAssetMoneyMarketMutualFunds
Namespace Prefix:	all_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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.

No definition available.