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SUPPLEMENTAL CASH FLOW INFORMATION - SUPPLEMENTAL INFORMATION (Details) - USD ($) $ in Millions | 9 Months Ended
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Sep. 30, 2018 | Sep. 30, 2017
Supplemental cash flow information |  |
Cash (paid) for interest, net of amount capitalized | $ (278.1) | $ (258.2)
Cash (paid) received for income taxes, net | (55.9) | 7.3
Significant non-cash transactions |  |
Accounts payable related to construction costs | 71.9 | 172.7
Portion of Bostco real estate holdings sale financed with note receivable | $ 0.0 | $ 7.0

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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586 + Details
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