Debt Short-Term Borrowings and Long-Term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Bank Overdrafts	$ 24.6	$ 45.4
Other Short-term Borrowings	70.5	32.0
Short-term borrowings	95.1	77.4
Long-term debt, net of debt issuance costs	702.0	690.6
Debt, Long-term and Short-term, Combined Amount	1,107.9	752.7
Borrowing capacity remaining	67.0
Line of Credit [Member]
Debt Instrument [Line Items]
Unamortized Debt Issuance Expense	14.2	15.3
Long-term senior notes, 4.4%, due November 2022 [Member]
Debt Instrument [Line Items]
Long-term debt, net of debt issuance costs	273.2	273.0
Debt Instrument, Face Amount	$ 275.0	$ 275.0
Debt Instrument, Interest Rate, Stated Percentage	4.40%	4.40%
Unamortized Debt Issuance Expense	$ 2.0	$ 2.3
Long-term senior notes, Euro notes, 1.96%, due June 2027 [Member]
Debt Instrument [Line Items]
Long-term debt, net of debt issuance costs	214.4	208.8
Debt Instrument, Face Amount	$ 175.0	$ 175.0
Debt Instrument, Interest Rate, Stated Percentage	1.96%	1.96%
Unamortized Debt Issuance Expense	$ 1.2	$ 1.1
Long-term senior notes, Euro notes, 2.21%, due June 2029 [Member]
Debt Instrument [Line Items]
Long-term debt, net of debt issuance costs	214.4	208.8
Debt Instrument, Face Amount	$ 175.0	$ 175.0
Debt Instrument, Interest Rate, Stated Percentage	2.21%	2.21%
Unamortized Debt Issuance Expense	$ 1.1	$ 1.1

Carrying value as of the balance sheet date of payments made in excess of existing cash balances, which will be honored by the bank but reflected as a loan to the entity. Overdrafts generally have a very short time frame for correction or repayment and are therefore more similar to short-term bank financing than trade financing.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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- Definition

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

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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.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount of borrowings classified as other, maturing within one year or the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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-Subparagraph (SX 210.5-02(19)(a))
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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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