ASC 606 Adoption, Reduction in inventory

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ASC 606 Deferred Tax Liability

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New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification, Max

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New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification, Minimum

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Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer, when right is conditioned on something other than passage of time.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount of the effect of a change in accounting principle on operating profit or loss.

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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 current assets classified as other.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Nature Of Operations And Significant Accounting Policies (Recently Adopted Accounting Pronouncements) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification, Min									$ 100.0
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification, Max									120.0
Cost of Goods and Services Sold	$ 544.6	$ 544.8	$ 545.6	$ 521.2	$ 455.6	$ 441.5	$ 444.3	$ 429.5	2,156.2	$ 1,770.9	$ 1,758.3
Inventory, Net	411.5				349.3				411.5	349.3
Other Assets, Current	76.2				$ 19.6				76.2	19.6
Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Contract with Customer, Asset, Gross												$ 28.1
Contract with Customer, Asset, Net	54.9								54.9			22.1
ASC 606 Deferred Tax Liability												2.3
ASC 606 Adoption, Reduction in inventory												19.1
Change resulting from ASU No. 2017-07 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Operating Results									21.1	$ 13.6
Retained Earnings [Member] \| Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption												$ 6.7
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] \| Accounting Standards Update 2014-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax									16.3
Cost of Goods and Services Sold									10.9
Inventory, Net	38.9								38.9
Other Assets, Current	$ 59.4								$ 59.4