XML 91 R79.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Fair Value Financial Instruments Not Required to Be Carried at Fair Value (Detail) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Commercial mortgage loans, net | $ 6,662 | $ 6,802
Liabilities: |  |
Long-term borrowings | 1,564 | 1,584
Off-balance sheet risk | 1,529 | 1,530
Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Commercial mortgage loans, net | 0 | 0
Bank loan investments | 0 | 0
Liabilities: |  |
Long-term borrowings | 0 | 0
Investment contracts | 0 | 0
Level 1 | Commitments to fund bank loan investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Level 1 | Commitments to fund Private Placement Investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Level 1 | Commitments to fund commercial mortgage loan investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Commercial mortgage loans, net | 0 | 0
Bank loan investments | 0 | 0
Liabilities: |  |
Long-term borrowings | 1,438 | 1,413
Investment contracts | 0 | 0
Level 2 | Commitments to fund bank loan investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Level 2 | Commitments to fund Private Placement Investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Level 2 | Commitments to fund commercial mortgage loan investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Commercial mortgage loans, net | 6,094 | 6,291
Bank loan investments | 556 | 520
Liabilities: |  |
Long-term borrowings | 0 | 0
Investment contracts | 4,804 | 5,372
Level 3 | Commitments to fund bank loan investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Level 3 | Commitments to fund Private Placement Investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Level 3 | Commitments to fund commercial mortgage loan investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Carrying value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Commercial mortgage loans, net | 6,662 | 6,802
Bank loan investments | 560 | 529
Liabilities: |  |
Long-term borrowings | 1,564 | 1,584
Investment contracts | 4,870 | 5,346
Carrying value | Commitments to fund bank loan investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Carrying value | Commitments to fund Private Placement Investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Carrying value | Commitments to fund commercial mortgage loan investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Fair value |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Commercial mortgage loans, net | 6,094 | 6,291
Bank loan investments | 556 | 520
Liabilities: |  |
Long-term borrowings | 1,438 | 1,413
Investment contracts | 4,804 | 5,372
Fair value | Commitments to fund bank loan investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Fair value | Commitments to fund Private Placement Investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Fair value | Commitments to fund commercial mortgage loan investments |  |
Liabilities: |  |
Off-balance sheet risk | 0 | 0
Notional amount | Commitments to fund bank loan investments |  |
Liabilities: |  |
Off-balance sheet risk | 150 | 117
Notional amount | Commitments to fund Private Placement Investments |  |
Liabilities: |  |
Off-balance sheet risk | 5 | 42
Notional amount | Commitments to fund commercial mortgage loan investments |  |
Liabilities: |  |
Off-balance sheet risk | $ 11 | $ 13

X
- Definition Investments in debentures, bonds and other debt securities issued by a bank holding company, its subsidiaries, or affiliates. + References No definition available. + Details
Name: | gnw_BankLoanInvestments
Namespace Prefix: | gnw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of the liability as of the balance sheet date pertaining to the guarantee given by the insurance entity to contract holders of a specified rate of return (a guaranteed yield) on their investments for a specified period. + References No definition available. + Details
Name: | gnw_InvestmentContracts
Namespace Prefix: | gnw_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-3 + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-10 + Details
Name: | us-gaap_FairValueDisclosureOffbalanceSheetRisksAmountLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69B -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69B Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69C -Publisher FASB -URI https://asc.fasb.org//1943274/2147481568/470-20-55-69C Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1D -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-4 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(c)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 + Details
Name: | us-gaap_MortgageLoansOnRealEstateCommercialAndConsumerNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=gnw_CommitmentsToFundBankLoanInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=gnw_CommitmentsToFundPrivatePlacementInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=gnw_CommitmentsToFundCommercialMortgageLoanInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=gnw_NotionalAmountMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |