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Annual report pursuant to Section 13 and 15(d)

GOODWILL AND OTHER INTANGIBLE ASSETS AND LIABILITIES (Schedule Of Finite-Lived Intangible Assets By Major Class) (Details)

v3.6.0.2
GOODWILL AND OTHER INTANGIBLE ASSETS AND LIABILITIES (Schedule Of Finite-Lived Intangible Assets By Major Class) (Details) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items] Ìý Ìý
Definite lived intangible assets - Gross Carrying Amount $ 78.4 $ 78.4
Definite lived intangible assets - Accumulated Amortization (24.6) (20.2)
Definite lived intangible assets - Net Carrying Amount 53.8 58.2
Below-market sales contracts, gross Ìý (228.9)
Below-market sales contracts, accumulated amortization Ìý 205.8
Below-market sales contracts, net Ìý (23.1)
Other Current Liabilities [Member] Ìý Ìý
Finite-Lived Intangible Assets [Line Items] Ìý Ìý
Below-market sales contracts, gross Ìý (23.1)
Below-market sales contracts, net 0.0 (23.1)
Other Liabilities [Member] Ìý Ìý
Finite-Lived Intangible Assets [Line Items] Ìý Ìý
Below-market sales contracts, gross Ìý (205.8)
Below-market sales contracts, accumulated amortization Ìý 205.8
Below-market sales contracts, net 0.0 Ìý
Permits [Member] | Other Assets [Member] Ìý Ìý
Finite-Lived Intangible Assets [Line Items] Ìý Ìý
Definite lived intangible assets - Gross Carrying Amount 78.4 78.4
Definite lived intangible assets - Accumulated Amortization (24.6) (20.2)
Definite lived intangible assets - Net Carrying Amount $ 53.8 $ 58.2