Note 17 - Other Postretirement Benefits (Details) - Other Post Retirement Benefits Which Reflects Expected Future Services Expected To Be Paid (Other Postretirement Benefit Plans [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2014
Other Postretirement Benefit Plans [Member]
Note 17 - Other Postretirement Benefits (Details) - Other Post Retirement Benefits Which Reflects Expected Future Services Expected To Be Paid [Line Items]
2015	$ 8
2016	7
2017	6
2018	6
2019	6
2020-2024	$ 24

Note 17 - Other Postretirement Benefits (Details) - Other Post Retirement Benefits Which Reflects Expected Future Services Expected To Be Paid (Other Postretirement Benefit Plans [Member], USD $)
In Millions, unless otherwise specified

Dec. 31, 2014

Other Postretirement Benefit Plans [Member]

Note 17 - Other Postretirement Benefits (Details) - Other Post Retirement Benefits Which Reflects Expected Future Services Expected To Be Paid [Line Items]