Acquisitions (Schedule Of Final Allocation Of Purchase Price) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2010	Aug. 05, 2010
Business Acquisition [Line Items]
Accounts receivable		$ 66
Inventory		47
Property, plant and equipment		32
Goodwill		549
Finite-lived intangible assets		216	[1]
Other assets		1
Accounts payable		(14)
Accrued liabilities		(69)
Advances and billings in excess of related costs		(8)
Deferred income taxes		(38)
Total net assets acquired		782
Weighted average amortization period (in years)	13 years
Developed Technology [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets		133
Customer Base [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets		$ 69

[1] Finite-lived intangible assets have a weighted average amortization period of 13 years and include $133 of Developed technology and $69 of Customer base.