Goodwill and Other Intangible Assets, net (Other Intangible Assets Disclosure) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Indefinite-lived intangible assets	$ 11,740	$ 11,711
Definite-lived intangible assets	465	465
Total other intangible assets	12,205	12,176
Definite-lived intangible assets, accumulated amortization	$ 169	$ 148