Property and Equipment, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 25	$ 140
Accumulated depreciation and amortization	(21)	(77)
Properties and equipment, net	4	63
Depreciation and amortization expense for continuing operations	$ 6	7	$ 6
Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of properties and equipment	3 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of properties and equipment	40 years
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2	3
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 21	109
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of properties and equipment	10 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of properties and equipment	40 years
Furniture and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2	$ 28
Furniture and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of properties and equipment	3 years
Furniture and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of properties and equipment	10 years