ACCUMULATED OTHER COMPREHENSIVE INCOME (Reclassifications Out Of Accumulated Other Comprehensive Income) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2013
Amortization of pension and other postretirement plan items:
Total net periodic benefit cost, net of tax	$ 2.2	$ 3.1	$ 6.4		$ 8.4
Reclassification out of Accumulated Other Comprehensive Income [Member]
Amortization of pension and other postretirement plan items:
Prior service cost			0.3	[1]
Recognized actuarial loss			(9.9)	[1]
Total net periodic benefit cost, before tax			(9.6)
Total net periodic benefit cost, tax benefit			3.6
Total net periodic benefit cost, net of tax			$ (6.0)

[1] These accumulated other comprehensive income components are included in the computation of net periodic pension cost (See Note 9 Benefit Plans for additional details).