REVENUE Contract Assets and Liabilities (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Contract with Customer, Asset and Liability [Abstract]
Current contract assets	$ 33.6	$ 21.8
Current Contract Assets, Percentage Change from Prior Period	54.10%
Contract with Customer, Asset, Net, Noncurrent	$ 0.0	0.7
Noncurrent Contract Assets, Percentage Change from Prior Period	(100.00%)
Contract with Customer, Liability	$ (52.7)	(61.0)
Current Contract Liabilities, Percentage Change from Prior Period	(13.60%)
Net Contract Liabilities	$ 19.1	$ 38.5
Net Contract Liability, Percentage Change from Prior Period	(50.40%)