CONTINGENT LIABILITIES AND OTHER MATTERS (Details 3) (Consortium arrangements, Thermal Equipment and Services reportable segment, USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 30, 2013	Dec. 31, 2012
Consortium arrangements | Thermal Equipment and Services reportable segment
Collaborative Arrangements
Entity's share of the aggregate contract value on open consortium arrangements	$ 257.3	$ 264.4
Percentage of entity's share of the aggregate contract value, recognized as revenue	64.00%	62.00%
Aggregate contract value on open consortium arrangements	721.7	740.9
Estimated fair value of potential obligation recorded as a liabilities	$ 1.5	$ 1.5