XML 88 R65.htm IDEA: XBRL DOCUMENT
v3.19.1

Fair Value of Assets and Liabilities - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Fair value of assets and liabilities measured on recurring and non-recurring basis |  |  |
Fair value | $ 58,202 |  | $ 57,170
Total realized and unrealized gains (losses) included in net income, recurring Level 3 assets and liabilities | 2 | $ (27) |
Significant unobservable inputs (Level 3) |  |  |
Fair value of assets and liabilities measured on recurring and non-recurring basis |  |  |
Assets at fair value | 753 |  |
Recurring | Significant unobservable inputs (Level 3) |  |  |
Fair value of assets and liabilities measured on recurring and non-recurring basis |  |  |
Fair value | 370 |  | 325
Assets at fair value | 714 |  | 697
Fixed Income Securities Valued Based on Nonbinding Broker Quotes |  |  |
Fair value of assets and liabilities measured on recurring and non-recurring basis |  |  |
Assets at fair value | 127 |  | 105
Municipal Not Rated by Third Party Credit Rating Agencies |  |  |
Fair value of assets and liabilities measured on recurring and non-recurring basis |  |  |
Assets at fair value | 41 |  | $ 44
Gain (Loss) on Investments |  |  |
Fair value of assets and liabilities measured on recurring and non-recurring basis |  |  |
Total realized and unrealized gains (losses) included in net income, recurring Level 3 assets and liabilities | (24) | (25) |
Realized capital gains (losses) |  |  |
Fair value of assets and liabilities measured on recurring and non-recurring basis |  |  |
Change in unrealized gain (loss) | 4 | 2 |
Life contract benefits |  |  |
Fair value of assets and liabilities measured on recurring and non-recurring basis |  |  |
Change in unrealized gain (loss) | 8 | 4 |
Interest credited to contractholder funds |  |  |
Fair value of assets and liabilities measured on recurring and non-recurring basis |  |  |
Change in unrealized gain (loss) | (36) | $ 19 |
Limited partnership interests |  |  |
Fair value of assets and liabilities measured on recurring and non-recurring basis |  |  |
Commitments to invest in limited partnership interests | $ 635 |  |
Limited partnership interests | Minimum |  |  |
Fair value of assets and liabilities measured on recurring and non-recurring basis |  |  |
Investment assets, useful life | 10 years |  |
Limited partnership interests | Maximum |  |  |
Fair value of assets and liabilities measured on recurring and non-recurring basis |  |  |
Investment assets, useful life | 12 years |  |

X
- Definition This element represents commitments to acquire financial interests or instruments, to allow for additional participation in certain limited partnership investments. Because the equity investments in the limited partnerships are not actively traded, it is not practical to estimate the fair value of these commitments. + References No definition available. + Details
Name: | all_CommitmentsToInvestInLimitedPartnershipInterests
Namespace Prefix: | all_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Investment Assets, Useful Life + References No definition available. + Details
Name: | all_InvestmentAssetsUsefulLife
Namespace Prefix: | all_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109979856&loc=d3e26610-111562 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesDebtSecurities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition This item represents the amount of the total realized and unrealized gains or losses for the period which are included in the statement of income (or changes in net assets); the fair value of which assets and liabilities was or is measured on a recurring basis using significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisGainLossIncludedInEarnings
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of unrealized (holding) gain (loss) which is included in the statement of income (or changes in net assets) related to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=all_FixedIncomeSecuritiesValuedBasedOnNonbindingBrokerQuotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=all_MunicipalNotRatedByThirdPartyCreditRatingAgenciesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_GainLossOnInvestmentsMember1
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=all_RealizedCapitalGainsAndLossesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=all_LifeAndAnnuityContractBenefitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=all_InterestCreditedToContractholderFundsMember
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: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |