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Annual report pursuant to Section 13 and 15(d)

FAIR VALUE OF FINANCIAL INSTRUMENTS (Fair Value Of Assets And Liabilities) (Details)

v3.8.0.1
FAIR VALUE OF FINANCIAL INSTRUMENTS (Fair Value Of Assets And Liabilities) (Details) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Assets: Ìý Ìý
Cash equivalents $ 616.9 $ 177.0
Derivative Asset 39.4 33.1
Total Asset 656.3 210.1
Liabilities: Ìý Ìý
Derivative Liability 2.7 0.5
Total Liability 2.7 0.5
Fair Value, Inputs, Level 1 [Member] Ìý Ìý
Assets: Ìý Ìý
Cash equivalents 66.3 177.0
Derivative Asset 0.0 0.0
Total Asset 66.3 177.0
Liabilities: Ìý Ìý
Derivative Liability 0.0 0.0
Total Liability 0.0 0.0
Fair Value, Inputs, Level 2 [Member] Ìý Ìý
Assets: Ìý Ìý
Cash equivalents 550.6 0.0
Derivative Asset 0.0 1.5
Total Asset 550.6 1.5
Liabilities: Ìý Ìý
Derivative Liability 0.3 0.0
Total Liability 0.3 0.0
Fair Value, Inputs, Level 3 [Member] Ìý Ìý
Assets: Ìý Ìý
Cash equivalents 0.0 0.0
Derivative Asset 39.4 31.6
Total Asset 39.4 31.6
Liabilities: Ìý Ìý
Derivative Liability 2.4 0.5
Total Liability $ 2.4 $ 0.5