COMMITMENTS AND CONTINGENCIES Rollforward of Environmental Liability and Related Assets (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Loss Contingency Accrual [Roll Forward]
Environmental liability - Beginning balance	$ (82.9)
Accruals added during the period for new matters, Liability	0.1
Net Cash Activity	(3.3)
Environmental liability - Ending balance	(81.4)
Liability [Member]
Loss Contingency Accrual [Roll Forward]
Environmental liability - Beginning balance	(94.6)
Accruals added during the period for new matters, Liability	0.1
Net Cash Activity	(3.4)
Environmental liability - Ending balance	(93.1)
Assets [Member]
Loss Contingency Accrual [Roll Forward]
Environmental liability - Beginning balance	11.7
Accruals added during the period for new matters, Liability
Net Cash Activity	0.1
Environmental liability - Ending balance	11.7
Continuing Operations [Member]
Environmental Liability And Related Assets [Line items]
Changes In Pre-Existing Environmental Accruals	1.1
Continuing Operations [Member] | Liability [Member]
Environmental Liability And Related Assets [Line items]
Changes In Pre-Existing Environmental Accruals	1.2
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	0.6
Discontinued Operations [Member] | Liability [Member]
Environmental Liability And Related Assets [Line items]
Changes In Pre-Existing Environmental Accruals	0.6
Discontinued Operations [Member] | Assets [Member]
Environmental Liability And Related Assets [Line items]
Changes In Pre-Existing Environmental Accruals	$ 0