Other Postretirement Employee Benefit Plans (Components Of Net Periodic Benefit Cost) (Details) - Other postretirement benefits - USD ($) $ in Millions |
12 Months Ended | ||
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Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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Defined Benefit Plan Disclosure [Line Items] | |||
Service cost | $ (0.4) | $ (0.4) | $ (0.7) |
Interest cost | (5.3) | (5.0) | |
Amortization of prior service (cost) credit | 2.1 | 2.5 | |
Net periodic pension benefit (cost) | $ (3.6) | $ (2.9) | $ (2.9) |
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- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- 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. No definition available.
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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