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Pension And Postretirement Benefits (Schedule Of Fair Value Of Company Pension Plan Assets) (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | $ 1,081.4 | $ 1,024.1
Active Markets for Identical Assets Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 545.3 | 398.7
Other Observable Inputs Level 2 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 14.7 | 14.3
Unobservable Inputs Level 3 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 21.7 | 22.8
Net Asset Value ("NAV") Practical Expedient (a) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 499.7 | 588.3
Cash Equivalents and Money Markets |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 30.5 | 30.1
Cash Equivalents and Money Markets | Active Markets for Identical Assets Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 30.5 | 30.1
Actively Managed U.S. Equities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 112.8 | 103.2
Actively Managed U.S. Equities | Active Markets for Identical Assets Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 112.8 | 103.2
Fixed Income Bonds and Notes |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets |  | 0.1
Fixed Income Bonds and Notes | Other Observable Inputs Level 2 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets |  | 0.1
U.S. Equity Funds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 129.1 | 117.3
U.S. Equity Funds | Active Markets for Identical Assets Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 129.1 | 117.3
Non-U.S. Equity Funds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 233.0 | 231.2
Non-U.S. Equity Funds | Active Markets for Identical Assets Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 93.7 | 53.2
Non-U.S. Equity Funds | Net Asset Value ("NAV") Practical Expedient (a) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 139.3 | 178.0
U.S. Fixed Income, Government and Corporate |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 116.2 | 76.6
U.S. Fixed Income, Government and Corporate | Active Markets for Identical Assets Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 116.2 | 76.6
Registered Investment Company |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 34.0 | 18.3
Registered Investment Company | Active Markets for Identical Assets Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 34.0 | 18.3
Collective Trust |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 40.7 | 42.0
Collective Trust | Unobservable Inputs Level 3 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 21.7 | 22.8
Collective Trust | Net Asset Value ("NAV") Practical Expedient (a) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 19.0 | 19.2
Non-U.S. Fixed Income, Government and Corporate |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 222.6 | 186.5
Non-U.S. Fixed Income, Government and Corporate | Net Asset Value ("NAV") Practical Expedient (a) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 222.6 | 186.5
International Balanced Funds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 2.1 | 1.9
International Balanced Funds | Net Asset Value ("NAV") Practical Expedient (a) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 2.1 | 1.9
Property Funds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 29.0 |
Property Funds | Active Markets for Identical Assets Level 1 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 29.0 |
Insurance / Annuity Contract(s) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 14.7 | 14.2
Insurance / Annuity Contract(s) | Other Observable Inputs Level 2 |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 14.7 | 14.2
Hedge Funds and LDI |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 64.0 | 153.8
Hedge Funds and LDI | Net Asset Value ("NAV") Practical Expedient (a) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 64.0 | 153.8
International Property Funds |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 52.7 | 48.9
International Property Funds | Net Asset Value ("NAV") Practical Expedient (a) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | $ 52.7 | $ 48.9

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