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Supplemental Financial Information (Other Current Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Supplemental Financial Information [Abstract]
Inventory	$ 219.7	$ 225.2
Prepaid taxes	35.8	30.7
Deferred costs	31.4	32.4
Prepaid expenses	14.1	7.9
Other	17.3	19.8
Other current assets	$ 318.3	$ 316.0

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Assets Current Other

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Supplemental Financial Information [Abstract]

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Amount of current assets classified as other.

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Net amount of other deferred costs capitalized at the end of the reporting period. Does not include deferred finance costs or deferred acquisition costs of insurance companies.

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Carrying amount as of the balance sheet date of expenditures made in advance of when the economic benefit of the cost will be realized, and which will be expensed in future periods with the passage of time or when a triggering event occurs.

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Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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