COMMITMENTS AND CONTINGENCIES Rollforward of Environmental Liability and Related Assets (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Loss Contingency Accrual [Roll Forward]
Environmental liability - Beginning balance	$ 83.8
Accruals added during the period for new matters, Liability	0.4
Net Cash Activity	(8.9)
Environmental liability - Ending balance	81.8
Liability [Member]
Loss Contingency Accrual [Roll Forward]
Environmental liability - Beginning balance	96.1
Accruals added during the period for new matters, Liability	0.4
Net Cash Activity	(9.4)
Environmental liability - Ending balance	93.5
Assets [Member]
Loss Contingency Accrual [Roll Forward]
Environmental liability - Beginning balance	12.3
Accruals added during the period for new matters, Liability
Net Cash Activity	(0.5)
Environmental liability - Ending balance	11.7
Continuing Operations [Member]
Environmental Liability And Related Assets [Line items]
Changes In Pre-Existing Environmental Accruals	(5.1)
Continuing Operations [Member] | Liability [Member]
Environmental Liability And Related Assets [Line items]
Changes In Pre-Existing Environmental Accruals	(5.0)
Continuing Operations [Member] | Assets [Member]
Environmental Liability And Related Assets [Line items]
Changes In Pre-Existing Environmental Accruals	(0.1)
Discontinued Operations [Member]
Environmental Liability And Related Assets [Line items]
Changes In Pre-Existing Environmental Accruals	(1.4)
Discontinued Operations [Member] | Liability [Member]
Environmental Liability And Related Assets [Line items]
Changes In Pre-Existing Environmental Accruals	(1.4)
Discontinued Operations [Member] | Assets [Member]
Environmental Liability And Related Assets [Line items]
Changes In Pre-Existing Environmental Accruals	$ 0