Goodwill and Other Intangible Assets, net (Other Intangible Assets) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Non-amortizable intangible assets, gross carrying amount	$ 1,780	$ 1,798
Amortizable intangible assets, gross carrying amount	1,945	1,940
Total other intangible assets, gross carrying amount	3,725	3,738
Accumulated Amortization	$ 591	$ 545