GOODWILL AND OTHER INTANGIBLE ASSETS - Activity in Goodwill by Reporting Segment (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Goodwill [Line Items]
Gross goodwill	$ 373.5	[1]	$ 307.6	[1]	$ 307.6	[1]
Impairment losses	0	[1]	0	[1]	0	[1]
Net goodwill	373.5	[1]	307.6	[1]
Goodwill [Roll Forward]
Goodwill at the beginning of year	307.6	[1]	307.6	[1]
Acquisitions	65.9	[2]	0
Goodwill at the end of year	373.5	[1]	307.6	[1]
RESV [Member]
Goodwill [Line Items]
Gross goodwill	156.8	[1]	156.8	[1]	156.8	[1]
Impairment losses	0	[1]	0	[1]	0	[1]
Net goodwill	156.8	[1]	156.8	[1]
Goodwill [Roll Forward]
Goodwill at the beginning of year	156.8	[1]	156.8	[1]
Acquisitions	0	[2]	0
Goodwill at the end of year	156.8	[1]	156.8	[1]
TECH [Member]
Goodwill [Line Items]
Gross goodwill	85.3	[1]	19.4	[1]	19.4	[1]
Impairment losses	0	[1]	0	[1]	0	[1]
Net goodwill	85.3	[1]	19.4	[1]
Goodwill [Roll Forward]
Goodwill at the beginning of year	19.4	[1]	19.4	[1]
Acquisitions	65.9	[2]	0
Goodwill at the end of year	85.3	[1]	19.4	[1]
DMS [Member]
Goodwill [Line Items]
Gross goodwill	131.4	[1]	131.4	[1]	131.4	[1]
Impairment losses	0	[1]	0	[1]	0	[1]
Net goodwill	131.4	[1]	131.4	[1]
Goodwill [Roll Forward]
Goodwill at the beginning of year	131.4	[1]	131.4	[1]
Acquisitions	0	[2]	0
Goodwill at the end of year	$ 131.4	[1]	$ 131.4	[1]

[1] The Residential Heating and Cooling ("RHC") and Custom & Engineered Solutions ("CES") reporting units did not have goodwill in any period presented.

[2] Acquisition adjustments recorded during 2013 for the TECH segment relate to the acquisition of Gefen Distribution and 2GIG. See Note 2, “Acquisitions and Other Investments”.