Intangible Assets Including Goodwill (Details 1) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Intangible Assets Including Goodwill:
Net carrying amount increase/(decrease)			$ (165)
Intangible asset amortization expense	$ 296	$ 340	594	$ 679
Intangible assets retired and fully amortized			$ 608