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Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Supplemental Schedule of Noncash Investing and Financing Activities |  |  |  |
Cash dividends declared, but not yet paid | $ 4.1 | $ 4.1 | $ 4.1 | $ 4.1
Beneficial interest obtained in exchange for accounts receivable sold | $ 122.5 | $ 83.2 | $ 241.5 | $ 157.1

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