GOODWILL AND OTHER INTANGIBLE ASSETS AND LIABILITIES (Tables)

6 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule Of Finite-Lived Intangible Assets By Major Class

The following table is a summary of definite-lived intangible assets as of June 30, 2017 and December 31, 2016:

		(In Millions)
		June 30, 2017							December 31, 2016
	Classification	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Permits	Other non-current assets	$	78.8	$	(25.6	)	$	53.2	$	78.4	$	(24.6	)	$	53.8