Divestitures Divestitures Assets and Liabilities Held for Sale (Details) - Bocom Divestiture [Member] - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Schedule of Assets and Liabilities Held for Sale [Line Items]
Trade Receivables Held-for-sale, Amount	$ 16.5	$ 26.8
Costs in Excess of Billings Held-for-sale	133.3	181.1
Disposal Group, Including Discontinued Operation, Inventory	2.3	1.3
Disposal Group, Including Discontinued Operation, Other Assets, Current	0.7	4.0
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent	1.5	24.2
Disposal Group, Including Discontinued Operation, Assets	154.3	237.4
Disposal Group, Including Discontinued Operation, Accounts Payable	63.3	72.9
Disposal Group, Including Discontinued Operation, Accrued Liabilities	18.2	24.8
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent	0.2	0.8
Disposal Group, Including Discontinued Operation, Liabilities	$ 81.7	$ 98.5