Name:	all_ReserveForLifeContingentContractBenefitsAndContractholderFundsDisclosureAbstract
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Disclosure of the activity in the liability for estimated reserve for cumulative deposits plus credited interest and fund performance, less withdrawals, expenses and cost of insurance charges, as applicable.

No definition available.

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Reflects the carrying amount of and other relevant, pertinent information about the liability as of the balance sheet date for policyholder contract deposits by major product line segment.

No definition available.

Name:	all_ScheduleOfContractHolderFundsByProductTableTextBlock
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Disclosure of assumptions associated with the accrued obligation to policyholders that relates to insured events, and can be viewed as either (a) the present value of future benefits to be paid to or on behalf of policyholders and expenses less the present value of future net premiums payable under the insurance contracts or (b) the accumulated amount of net premiums already collected less the accumulated amount of benefits and expenses already paid to or on behalf of policyholders.

No definition available.

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Disclosure of assumptions associated with the liability for estimated reserve for cumulative deposits plus credited interest and fund performance, less withdrawals, expenses and cost of insurance charges, as applicable.

No definition available.

Name:	all_ScheduleOfLiabilityForPolicyholderContractDepositsAssumptionsTableTextBlock
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Tabular disclosure of the claim liability for financial guarantee insurance contracts.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=99382878&loc=SL5749324-161292

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The entire disclosure for the present values of future benefits to be paid to or on behalf of policyholders and related expenses less the present value of future net premiums using assumptions such as estimates of expected investment yields, mortality, morbidity, terminations and expenses, applicable at the time the insurance contracts are made and unpaid claim costs relating to insurance contracts including estimates of costs relating to incurred but not reported claims based on the estimated ultimate cost of settling the claims (including effects of inflation and other societal and economic factors), using past experience adjusted for current trends and any other factors that would modify past experience by element such as business segment, country and interest rate range.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(13))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

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Tabular disclosure of minimum guaranteed benefits to policyholders and contract holders, such as guaranteed minimum death benefit, guaranteed minimum income benefit, and guaranteed annuitization benefits, discloses the amount of liability reported for additional insurance benefits, annuitization benefits and other minimum guarantees, by type of benefit, for the most recent balance sheet date and the incurred and paid amounts for periods presented for traditional and nontraditional products.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 80
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121641442&loc=d3e19393-158473

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 20
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=121639652&loc=d3e7104-158389

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Tabular disclosure of the guaranteed benefits in excess of the current account balance, quantifies such excesses (the net amounts at risk) and includes other relevant, pertinent information as of the most recent balance sheet date by product type.