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Supplemental Cash Flow Information (Details) - USD ($) $ in Millions | 9 Months Ended
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Sep. 30, 2016 | Sep. 30, 2015
Non-cash transactions: |  |
Capital expenditures included in current liabilities | $ 131.2 | $ 130.7
Assets acquired under a capital lease | 4.0 | 5.5
Schedule of interest and income taxes paid: |  |
Cash paid for interest, net of interest capitalized | 305.5 | 354.1
Cash paid for income taxes | $ 5.8 | $ 20.2

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- Definition Future cash outflow to pay for purchases of fixed assets that have occurred. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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