Income Taxes (Components of Income Taxes) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Federal:
Current	$ (28)	$ 0	$ 0
Deferred	(110)	24	(150)
State:
Current	1	(2)	1
Deferred	1	(11)	1
Foreign:
Current	509	538	837
Deferred	(30)	136	(33)
Total	$ 343	$ 685	$ 656