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Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Supplemental Schedule of Noncash Investing and Financing Activities
Beneficial interest obtained in exchange for accounts receivable sold	$ 0.0	$ 120.0
Cash dividends declared, but not yet paid	$ 4.0	$ 4.0

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Amount of beneficial interest received as consideration for transferring noncash financial asset. Includes, but is not limited to, trade receivable in securitization transaction.

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Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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