Intangible Assets (Details 2) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Intangible assets with indefinite lives
Gross Carrying Amount	$ 31	$ 31
Accumulated Impairment Charges	(1)	(1)
Net	30	30
Trade names
Intangible assets with indefinite lives
Gross Carrying Amount	22	22
Accumulated Impairment Charges	0	0
Net	22	22
Other
Intangible assets with indefinite lives
Gross Carrying Amount	9	9
Accumulated Impairment Charges	(1)	(1)
Net	$ 8	$ 8