XML 94 R76.htm IDEA: XBRL DOCUMENT
v3.24.4

Postretirement Benefit Plans - Asset Allocations of Postretirement Benefit Plans (Detail) | Dec. 31, 2024
--- | ---
Minimum | Cash and cash equivalents |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 0.00%
Minimum | Global Equity |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 10.00%
Minimum | Fixed income |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 10.00%
Minimum | Private equity funds |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 500.00%
Minimum | Real estate funds |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 0.00%
Minimum | Hedge funds |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 0.00%
Minimum | Commodities |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 0.00%
Maximum | Cash and cash equivalents |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 20.00%
Maximum | Global Equity |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 65.00%
Maximum | Fixed income |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 60.00%
Maximum | Private equity funds |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 30.00%
Maximum | Real estate funds |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 20.00%
Maximum | Hedge funds |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 20.00%
Maximum | Commodities |
Defined Benefit Plan Disclosure [Line Items] |
Asset Allocation Ranges | 10.00%

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

X
- Definition Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_DefinedBenefitPlanPlanAssetsTargetAllocationPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DefinedBenefitPlanCashAndCashEquivalentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DefinedBenefitPlanEquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_FixedIncomeSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_PrivateEquityFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DefinedBenefitPlanRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_HedgeFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_CommodityContractMember
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: |