Note 9 - Property, Plant and Equipment, Net of Accumulated Depreciation (Details) - Property, Net (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 21,098	$ 17,666
Accumulated depreciation	(8,332)	(7,865)
Total	12,766	9,801
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	458	121
Building [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	5,470	4,175
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	13,848	12,286
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,322	$ 1,084