Equity and Equity Compensation (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Capital Stock Shares Authorized	2,000,000,000
Common Stock, Shares Authorized	1,500,000,000	1,500,000,000
Common Stock, Par or Stated Value Per Share	$ 0.0001	$ 0.0001
Preferred Stock, Shares Authorized	500,000,000
Treasury Stock Acquired, Weighted Average Cost Per Share	$ 14.31	$ 14.24
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	157,000,000
Capital Stock Shares Authorized	28,000,000
Share-based Compensation	$ 90	$ 54	$ 72
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	45
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	7,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	8,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price	$ 11.80
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	7,000,000
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense	$ 0	$ 0