Income Taxes (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current:
Federal	$ 0	$ 0	$ 0
Foreign	2	10	8
State	1	1	0
Income tax expense (benefit) on continuing operations	3	11	8
Deferred:
Federal	0	(2)	3
Foreign	4	2	1
State	0	0	0
Deferred income tax expense (benefit) on continuing operations	4	0	4
Provision for income tax expense	$ 7	$ 11	$ 12