Goodwill And Identifiable Intangibles (Intangible Assets) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Intangible Assets [Line Items]
Amortization of intangibles		$ 8.5	$ 9.0	$ 17.8	$ 17.0
Amortizable intangible assets, Gross Carrying Amounts		546.3		546.3		$ 444.1
Amortizable intangible assets, Accumulated Amortization		(174.4)		(174.4)		(159.2)
Amortizable intangible assets, Net Book Value		371.9		371.9		284.9
Total identifiable intangibles, Gross Carrying Amounts		1,020.0		1,020.0		1,043.6
Total identifiable intangibles, Accumulated Amortization		(218.9)		(218.9)		(203.7)
Total identifiable intangibles, Net Book Value		801.1		801.1		839.9
Trade Names
Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amounts		304.2		304.2		195.3
Amortizable intangible assets, Accumulated Amortization		(64.0)		(64.0)		(59.4)
Amortizable intangible assets, Net Book Value		240.2		240.2		135.9
Customer and contractual relationships
Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amounts		236.6		236.6		243.0
Amortizable intangible assets, Accumulated Amortization		(109.7)		(109.7)		(99.3)
Amortizable intangible assets, Net Book Value		126.9		126.9		143.7
Patents
Intangible Assets [Line Items]
Amortizable intangible assets, Gross Carrying Amounts		5.5		5.5		5.8
Amortizable intangible assets, Accumulated Amortization		(0.7)		(0.7)		(0.5)
Amortizable intangible assets, Net Book Value		4.8		4.8		5.3
Trade Names
Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross carrying amount		473.7		473.7		599.5
Indefinite lived intangible asset accumulated amortization prior to the adoption of authoritative guidance	[1]	(44.5)		(44.5)		(44.5)
Indefinite-lived intangible assets, Net Book Value		$ 429.2		$ 429.2		$ 555.0

[1] Accumulated amortization prior to the adoption of authoritative guidance on goodwill and indefinite-lived intangible assets, at which time further amortization ceased.