POSTRETIREMENT BENEFIT PLANS Postretirement Textuals (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Defined Benefit Plan, Contributions by Employer			$ 6.4	$ 7.4
Reclassification of Postretirement Costs from AOCI, Net of Tax	$ 1.2	$ 1.2	$ 2.3	$ 2.3
Document Period End Date			Jun. 30, 2017
Minimum [Member]
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year			$ 5.0
Maximum [Member]
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year			$ 9.0