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Supplemental Financial Information (Other Current Assets) (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Supplemental Financial Information [Abstract]
Inventory	$ 235.4	$ 235.3
Disposal Group, Including Discontinued Operation, Assets, Current	5.4	5.5
Prepaid taxes	49.2	73.5
Deferred costs	49.7	52.1
Prepaid expenses	12.3	20.5
Other	17.8	14.9
Other current assets	$ 369.8	$ 401.8

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Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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