Contingencies (Details) (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2011	Dec. 31, 2010	Jun. 30, 2011
Changes in the carrying amount of environmental remediation obligations
Accrual for Environmental Loss Contingencies, Beginning Balance	$ 67,700,000		$ 67,700,000
Accruals and adjustments			3,400,000
Payments			(2,800,000)
Foreign currency translation and other			4,200,000
Accrual for Environmental Loss Contingencies, Ending Balance		67,700,000	72,500,000
Deferred Settlement Credits Activity
Deferred Settlement Credit, Beginning Balance	48,600,000		48,600,000
Proceeds from Insurance Settlements			500,000
Amounts recorded as reduction of costs			(2,700,000)
Deferred Settlement Credit, Ending Balance		48,600,000	46,400,000
Current and long-term portions of the deferred settlement credits
Accrued expenses		5,700,000	9,100,000
Other non-current liabilities		42,900,000	37,300,000
Deferred settlement credit		48,600,000	46,400,000
Contingencies (Textuals) [Abstract]
Accrued liability for environmental remediation included as accrued expenses		14,600,000	17,000,000
Accrued liability for environmental remediation associated with ongoing operations		27,300,000	33,800,000
Accrued liability for environmental remediation associated with previously owned business		40,400,000	38,700,000
Estimated original equipment sales related to Boeing 787 contract			9,000,000,000
Total pre-production costs and inventory			20,700,000
Customer Advances related to JSTARS			8,100,000
Recognized Tax Benefit	$ 21,000,000	$ 23,000,000