Separation Costs (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Separation Costs [Abstract]
Rebranding and marketing costs	$ 0	$ 8
Advisory fees and other	0	7
Information and technology costs	2	3
Employee Retention And Hiring Costs	0	1
Lease termination and other real estate costs	2	1
Other	0	2
Total separation costs in operating income	4	22	87
Income tax (benefit) expense	(2)	(6)
Total separation costs, net of tax	$ 2	$ 16