Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract.

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Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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The average strike price on the group of price risk option contracts such as put options or call options.

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Fixed interest rate related to the interest rate derivative.

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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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Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of price risk derivatives not designated as hedging instruments.

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

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Maximum period the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Nominal or face amount used to calculate payments on a nonderivative instrument.

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Amount, after tax, of cumulative translation adjustment attributable to gain (loss) on foreign currency derivatives that are designated as, and are effective as, economic hedges of a net investment in a foreign entity.

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Pre-tax cumulative adjustment resulting from gains and losses on foreign currency derivatives that are designated as, and are effective as, hedges of a net investment in a foreign entity, commencing as of the designation date. Adjustment reported in equity as part of accumulated other comprehensive income.

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Derivative Financial Instruments (Textuals) (Details) € in Millions, ¥ in Millions, $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) MBbls $ / bbl	Dec. 31, 2018 EUR (€)	Dec. 31, 2018 JPY (¥)	Dec. 31, 2017 USD ($)	Dec. 31, 2018 EUR (€) MBbls $ / bbl	Dec. 31, 2018 SGD ($) MBbls $ / bbl	Dec. 31, 2018 JPY (¥) MBbls $ / bbl	Apr. 24, 2018 MBbls	Dec. 31, 2017 EUR (€)	Dec. 31, 2017 SGD ($)	Nov. 22, 2017 MBbls	Oct. 02, 2017 USD ($)	Dec. 31, 2016 USD ($)	Nov. 18, 2016 MBbls
Derivative [Line Items]
Long-term debt	$ 196.1			$ 197.0
Forward-Start Interest Rate Swap [Member]
Derivative [Line Items]
Notional amount												$ 33.1	$ 34.9
Debt Instrument, Description of Variable Rate Basis				one-month LIBOR
Maximum term (in years)				5 years
Fixed interest rate				5.41%					5.41%	5.41%
Euro Note B [Member]
Derivative [Line Items]
Cumulative foreign currency translation loss	0.2
Cumulative foreign currency translation loss, net of tax	0.1
Euro-Denominated Revolver [Member]
Derivative [Line Items]
Notional amount, nonderivative instruments	24.0	€ 21.0
Debt Yen Denominated [Member]
Derivative [Line Items]
Notional amount, nonderivative instruments	4.6		¥ 500.0
Cumulative foreign currency translation loss	0.4
Cumulative foreign currency translation loss, net of tax	0.3
Commodity Call Options [Member]
Derivative [Line Items]
(Gain) loss recorded in cost of goods and services sold, call options	$ (0.1)			$ 0.3
Commodity Call Options Held [Member]
Derivative [Line Items]
Purchased call options, barrels of crude oil (in barrels) \| MBbls	47,445				47,445	47,445	47,445	30,612			125,166			96,525
Derivative, Average Price Risk Option Strike Price \| $ / bbl	76.45				76.45	76.45	76.45
Euro Member Countries, Euro \| Forward Contracts [Member]
Derivative [Line Items]
Notional amount \| €					€ 10.0				€ 12.0
United States of America, Dollars \| Forward Contracts [Member]
Derivative [Line Items]
Notional amount	$ 13.4			$ 13.4
United States of America, Dollars \| Long [Member] \| Foreign Exchange Forward [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amount	32.9
United States of America, Dollars \| Short [Member] \| Foreign Exchange Forward [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amount	0.0				27.8
Japan, Yen \| Long [Member] \| Foreign Exchange Forward [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amount \| ¥							¥ 5,602.7
Japan, Yen \| Short [Member] \| Foreign Exchange Forward [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amount	27.3				20.4
Singapore, Dollars \| Forward Contracts [Member]
Derivative [Line Items]
Notional amount						$ 601.5				$ 171.0
Singapore, Dollars \| Long [Member] \| Foreign Exchange Forward [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amount						$ 42.4
Singapore, Dollars \| Short [Member] \| Foreign Exchange Forward [Member] \| Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amount	$ 20.0				€ 9.5