Land, Buildings, Equipment and Software, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Property, Plant, Equipment and Software [Line Items]
Land, buildings and equipment, gross	$ 4,212	$ 4,414
Accumulated depreciation	(3,216)	(3,291)
Land, Buildings and Equipment, Net	996	1,123
Land [Member]
Property, Plant, Equipment and Software [Line Items]
Land, buildings and equipment, gross	31	42
Building and building equipment [Member]
Property, Plant, Equipment and Software [Line Items]
Land, buildings and equipment, gross	947	996
Leasehold Improvements [Member]
Property, Plant, Equipment and Software [Line Items]
Land, buildings and equipment, gross	452	466
Plant machinery [Member]
Property, Plant, Equipment and Software [Line Items]
Land, buildings and equipment, gross	1,274	1,375
Office furniture and equipment [Member]
Property, Plant, Equipment and Software [Line Items]
Land, buildings and equipment, gross	1,389	1,384
Other [Member]
Property, Plant, Equipment and Software [Line Items]
Land, buildings and equipment, gross	65	78
Construction in progress [Member]
Property, Plant, Equipment and Software [Line Items]
Land, buildings and equipment, gross	$ 54	$ 73
Minimum [Member]
Property, Plant, Equipment and Software [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member] | Building and building equipment [Member]
Property, Plant, Equipment and Software [Line Items]
Property, Plant and Equipment, Useful Life	25 years
Minimum [Member] | Plant machinery [Member]
Property, Plant, Equipment and Software [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Minimum [Member] | Office furniture and equipment [Member]
Property, Plant, Equipment and Software [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Minimum [Member] | Other [Member]
Property, Plant, Equipment and Software [Line Items]
Property, Plant and Equipment, Useful Life	4 years
Maximum [Member]
Property, Plant, Equipment and Software [Line Items]
Property, Plant and Equipment, Useful Life	4 years
Maximum [Member] | Building and building equipment [Member]
Property, Plant, Equipment and Software [Line Items]
Property, Plant and Equipment, Useful Life	50 years
Maximum [Member] | Plant machinery [Member]
Property, Plant, Equipment and Software [Line Items]
Property, Plant and Equipment, Useful Life	12 years
Maximum [Member] | Office furniture and equipment [Member]
Property, Plant, Equipment and Software [Line Items]
Property, Plant and Equipment, Useful Life	15 years
Maximum [Member] | Other [Member]
Property, Plant, Equipment and Software [Line Items]
Property, Plant and Equipment, Useful Life	20 years