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v3.21.2

Pension and Postretirement Health and Life Benefits (Narrative) (Details) $ in Millions | 9 Months Ended
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Sep. 30, 2021 USD ($)
Gain Related to Litigation Settlement | $ 43.5
Pension Plan, Defined Benefit [Member] |
Defined Contribution Plan, Employer Supplemental Contribution Amount | 33.8
Other Postretirement Benefits Plan [Member] |
Defined Contribution Plan, Employer Supplemental Contribution Amount | $ 9.7

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- Definition Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
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