XML 84 R101.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Derivative Financial Instruments and Off-balance sheet Financial Instruments - Derivatives not designated as accounting hedges (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | $ 25 | $ 59 | $ 38
Realized capital gains (losses) |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | (15) | 43 | (46)
Life and annuity contract benefits |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 7 | (5) | 9
Interest credited to contractholder funds |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | (7) | 43 | 41
Operating costs and expenses |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 40 | (22) | 34
Interest rate contracts |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 51 | (2) |
Interest rate contracts | Realized capital gains (losses) |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 51 | (2) |
Interest rate contracts | Life and annuity contract benefits |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 |
Interest rate contracts | Interest credited to contractholder funds |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 |
Interest rate contracts | Operating costs and expenses |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 |
Equity and index contracts |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | (13) | (24) | 60
Equity and index contracts | Realized capital gains (losses) |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | (116) | 21 | (15)
Equity and index contracts | Life and annuity contract benefits |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 | 0
Equity and index contracts | Interest credited to contractholder funds |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 63 | (24) | 47
Equity and index contracts | Operating costs and expenses |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 40 | (21) | 28
Embedded derivative financial instruments |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | (63) | 62 | 3
Embedded derivative financial instruments | Realized capital gains (losses) |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 | 0
Embedded derivative financial instruments | Life and annuity contract benefits |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 7 | (5) | 9
Embedded derivative financial instruments | Interest credited to contractholder funds |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | (70) | 67 | (6)
Embedded derivative financial instruments | Operating costs and expenses |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 | 0
Foreign currency contracts |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 8 | 28 | (21)
Foreign currency contracts | Realized capital gains (losses) |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 8 | 29 | (27)
Foreign currency contracts | Life and annuity contract benefits |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 | 0
Foreign currency contracts | Interest credited to contractholder funds |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 | 0
Foreign currency contracts | Operating costs and expenses |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | (1) | 6
Credit default contracts |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | (8) | 2 | (4)
Credit default contracts | Realized capital gains (losses) |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | (8) | 2 | (4)
Credit default contracts | Life and annuity contract benefits |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 | 0
Credit default contracts | Interest credited to contractholder funds |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 | 0
Credit default contracts | Operating costs and expenses |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 | $ 0
Total return swap agreements - fixed income |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 14 | (1) |
Total return swap agreements - fixed income | Realized capital gains (losses) |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 14 | (1) |
Total return swap agreements - fixed income | Life and annuity contract benefits |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 |
Total return swap agreements - fixed income | Interest credited to contractholder funds |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 |
Total return swap agreements - fixed income | Operating costs and expenses |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 |
Total return swap agreements - equity index |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 36 | (6) |
Total return swap agreements - equity index | Realized capital gains (losses) |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 36 | (6) |
Total return swap agreements - equity index | Life and annuity contract benefits |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 |
Total return swap agreements - equity index | Interest credited to contractholder funds |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | 0 | 0 |
Total return swap agreements - equity index | Operating costs and expenses |  |  |
Derivative Instruments, Gain (Loss) |  |  |
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives | $ 0 | $ 0 |

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_DerivativeInstrumentsGainLossLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4CC -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109998890-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
Name: | us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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_IncomeStatementLocationAxis=all_OtherCostAndExpenseOperatingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=all_EquityAndIndexContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_EmbeddedDerivativeFinancialInstrumentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CreditDefaultSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=all_TotalReturnSwapFixedIncomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=all_TotalReturnSwapEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |