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DEBT - Schedule of Debt Outstanding (Details) - USD ($) $ in Millions | Dec. 31, 2018 | May 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Total debt | $ 2,654.9 |  | $ 2,715.3
Less short-term debt and current maturities | (4.9) |  | (965.3)
Less unamortized discounts and debt issuance costs | (19.4) |  | (11.0)
Total long-term debt, net of discount | 2,630.6 |  | 1,739.0
Commercial paper (“CP”) |  |  |
Debt Instrument [Line Items] |  |  |
Total debt | 0.0 |  | 562.6
Revolver |  |  |
Debt Instrument [Line Items] |  |  |
Total debt | 0.0 |  | 100.0
Term loan, due Nov 2018 |  |  |
Debt Instrument [Line Items] |  |  |
Total debt | 0.0 |  | 400.0
Notes, 2.30%, due June 2021 |  |  |
Debt Instrument [Line Items] |  |  |
Total debt | $ 500.0 |  | 500.0
Debt, interest rate | 2.30% |  |
Notes, 3.60%, due Aug 2021 |  |  |
Debt Instrument [Line Items] |  |  |
Total debt | $ 300.0 |  | 0.0
Debt, interest rate | 3.60% | 3.60% |
Notes, Floating Rate, due Aug 2021 |  |  |
Debt Instrument [Line Items] |  |  |
Total debt | $ 300.0 |  | 0.0
Notes, 3.30%, due Dec 2022 |  |  |
Debt Instrument [Line Items] |  |  |
Total debt | $ 500.0 |  | 500.0
Debt, interest rate | 3.30% |  |
Notes, 3.95%, due May 2023 |  |  |
Debt Instrument [Line Items] |  |  |
Total debt | $ 400.0 |  | 0.0
Debt, interest rate | 3.95% | 3.95% |
Notes, 3.25%, due June 2026 |  |  |
Debt Instrument [Line Items] |  |  |
Total debt | $ 275.0 |  | 275.0
Debt, interest rate | 3.25% |  |
Debentures, 6.90%, due July 2028 |  |  |
Debt Instrument [Line Items] |  |  |
Total debt | $ 125.0 |  | 125.0
Debt, interest rate | 6.90% |  |
Notes, 7.00%, due July 2037 |  |  |
Debt Instrument [Line Items] |  |  |
Total debt | $ 250.0 |  | 250.0
Debt, interest rate | 7.00% |  |
Other |  |  |
Debt Instrument [Line Items] |  |  |
Total debt | $ 4.9 |  | $ 2.7

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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