Goodwill and Other Intangible Assets, Net (Other Intangible Assets) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Non-amortizable intangible assets, gross carrying amount	$ 1,861	$ 1,798
Amortizable intangible assets, gross carrying amount	1,940	1,940
Total other intangible assets, gross carrying amount	3,801	3,738
Accumulated Amortization	$ 567	$ 545