Intangible Assets (Details 2) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Intangible assets with indefinite lives
Gross carrying amount	$ 30	$ 30
Impairment charges	1	1
Net	29	29
Trade names [Member]
Intangible assets with indefinite lives
Gross carrying amount	22	22
Impairment charges	0	0
Net	22	22
Other intangible assets [Member]
Intangible assets with indefinite lives
Gross carrying amount	8	8
Impairment charges	1	1
Net	$ 7	$ 7