Acquisitions, Dispositions, Goodwill and Other Intangible Assets (General Information) (Details) - Jun. 30, 2015 - USD ($) $ in Millions	Total	Total
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Acquisition Cost Of Acquired Entities and Interest in Affiliates		$ 273
Noncash or Part Noncash Acquisition, Debt Assumed		17
Sikorsky [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Agreed Upon Selling Price of Disposal Business	$ 9,000	$ 9,000
Subsequent Event, Description	we announced an agreement to sell our Sikorsky Aircraft business (Sikorsky) to Lockheed Martin Corp.
Subsequent Event, Date	Jul. 20, 2015