INVENTORIES (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Inventory [Line Items]
Costs and estimated earnings in excess of billings on uncompleted contracts	$ 93.7	$ 81.9
Excess over average costs on long-term contracts	320.6	213.4
Work-in-process inventories
Inventory [Line Items]
Costs and estimated earnings in excess of billings on uncompleted contracts	127.9	107.5
Excess over average costs on long-term contracts	$ 320.6	$ 213.4