Note 10 - Property, Plant and Equipment, Net of Accumulated Depreciation (Details) - Property, Net (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 21,299	$ 21,098
Accumulated depreciation	(8,591)	(8,332)
Total	12,708	12,766
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	452	458
Building [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	5,472	5,470
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	13,956	13,848
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,419	$ 1,322