Indebtedness (Components Of Indebtedness) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Other long-term debt	$ 17.1	$ 20.6
Debt issuance costs	(2.8)	(2.6)
Long-term Debt	1,697.4	1,347.9
Current portion of long term debt	(68.4)	(72.6)
Total long-term indebtedness, less current portion	$ 1,404.3	1,275.3
1.056% Senior term loan due 2020
Debt Instrument [Line Items]
Debt instrument, interest rate, percent	1.056%
Senior notes	$ 224.7	228.7
Current portion of long term debt	(224.7)	0.0
Senior Unsecured Term Loan Due October 28, 2022 [Member]
Debt Instrument [Line Items]
Senior notes	$ 168.5	171.5
Credit facility, expires 2023
Debt Instrument [Line Items]
Credit facility		114.4
Senior Notes Due 2025, 1.002% [Member] [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, percent	1.002%
Senior notes	$ 280.9	0.0
Senior term loans due between 2019 and 2028
Debt Instrument [Line Items]
Senior notes	801.1	815.3
Current portion of long term debt	(62.9)	(63.8)
Other Debt Obligations [Member]
Debt Instrument [Line Items]
Current portion of long term debt	$ (5.5)	$ (8.8)

Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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