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Goodwill And Identifiable Intangibles (Intangible Assets) (Details) - USD ($) $ in Millions | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Intangible Assets [Line Items] |  |  |
Amortizable intangible assets, Gross Carrying Amounts |  | $ 552.5 | $ 551.7
Amortizable intangible assets, Accumulated Amortization |  | (200.9) | (191.9)
Amortizable intangible assets, Net Book Value |  | 351.6 | 359.8
Total identifiable intangibles, Gross Carrying Amounts |  | 1,021.6 | 1,023.4
Total identifiable intangibles, Accumulated Amortization |  | (245.4) | (236.4)
Total identifiable intangibles, Net Book Value |  | 776.2 | 787.0
Trade Names |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable intangible assets, Gross Carrying Amounts |  | 306.1 | 306.0
Amortizable intangible assets, Accumulated Amortization |  | (73.9) | (70.5)
Amortizable intangible assets, Net Book Value |  | 232.2 | 235.5
Customer and contractual relationships |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable intangible assets, Gross Carrying Amounts |  | 241.0 | 240.2
Amortizable intangible assets, Accumulated Amortization |  | (126.0) | (120.5)
Amortizable intangible assets, Net Book Value |  | 115.0 | 119.7
Patents |  |  |
Intangible Assets [Line Items] |  |  |
Amortizable intangible assets, Gross Carrying Amounts |  | 5.4 | 5.5
Amortizable intangible assets, Accumulated Amortization |  | (1.0) | (0.9)
Amortizable intangible assets, Net Book Value |  | 4.4 | 4.6
Trade Names |  |  |
Intangible Assets [Line Items] |  |  |
Indefinite-lived intangible assets, gross carrying amount |  | 469.1 | 471.7
Indefinite lived intangible asset accumulated amortization prior to the adoption of authoritative guidance | [1] | (44.5) | (44.5)
Indefinite-lived intangible assets, Net Book Value |  | $ 424.6 | $ 427.2
[1] | Accumulated amortization prior to the adoption of authoritative guidance on goodwill and other intangible assets, at which time further amortization ceased.

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