Note 2 - Significant Accounting Policies and Methods of Application (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	6 Months Ended				1 Months Ended
	Jun. 30, 2013	Jun. 30, 2013	Jun. 30, 2013 Tropical Shipping [Member]	Dec. 31, 2012 Tropical Shipping [Member]	Jun. 30, 2012 Tropical Shipping [Member]	Jan. 31, 2013 NiSource Inc. [Member]	Jan. 31, 2013 Customer Relationships [Member]	Jan. 31, 2013 Trade Names [Member]	Jun. 30, 2013 Customer Relationships Acquired [Member]	Jun. 30, 2013 Minimum [Member] Customer Relationships [Member]	Jun. 30, 2013 Maximum [Member] Customer Relationships [Member]
Note 2 - Significant Accounting Policies and Methods of Application (Details) [Line Items]
Investments and Cash (in Dollars)			$ 79	$ 80	$ 76
Service Plans Acquired						500,000
Payments to Acquire Businesses, Gross (in Dollars)						120
Working Capital Acquired (in Dollars)						2
Finite-lived Intangible Assets Acquired (in Dollars)							47	17
Finite-Lived Intangible Asset, Useful Life							14 years	10 years		12 years	15 years
Customer Relationships Acquired									33,000
Finite-Lived Customer Relationships, Gross (in Dollars)	32	32
Proceeds from Sales of Business, Affiliate and Productive Assets (in Dollars)		12
Gain (Loss) on Disposition of Business (in Dollars)		11
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High (in Dollars)	8	8
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low (in Dollars)	$ 3	$ 3
Business Combination Contingent Consideration Arrangements Earn Out Period	5 years