Note 2 - Significant Accounting Policies and Methods of Application (Details) - Property, Plant and Equipment (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 11,104	$ 10,478
Less accumulated depreciation	2,323	2,131
Total PP&E, net	8,781	8,347
Gas, Transmission and Distribution Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	8,384	7,992
Storage Facilities [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	1,170	1,149
Shipping Vessels and Containers [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	148	145
Property, Plant and Equipment, Other Types [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	854	820
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 548	$ 372