Intangible Assets Including Goodwill (Details 1) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Intangible Assets Including Goodwill:
Net carrying amount increase/(decrease)			$ (328)
Intangible asset amortization expense	$ 290	$ 339	884	$ 1,018
Intangible assets retired and fully amortized			$ 1,608