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Supplemental Disclosures (Schedule of Cash Flow, Supplemental Disclosures and Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Non-cash financing activities: |  |  |
Debt issuance costs paid directly from escrow accounts | $ 46.0 |  |
Capital expenditures in accounts payable and other liabilities | 105.9 | $ 102.2 | $ 108.5
Equipment acquired or refinanced through capital leases | 0.0 | 12.5 | 14.5
Cash (received) paid for: |  |  |
Interest income | (4.5) | (1.1) | (1.5)
Interest expense | 106.7 | 28.4 | 25.7
Income taxes | $ 27.3 | $ 20.0 | $ 18.1

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