Note 10 - Goodwill and Other Intangible Assets (Details) - Other Intangible Assets - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Amortized intangible assets:
Other intangible assets, gross	$ 985	$ 971
Other intangible assets, accumulated amortization	282	265
Other intangible assets, net	703	706
Patents, Trademarks, and Trade Names [Member]
Amortized intangible assets:
Other intangible assets, gross	356	350
Other intangible assets, accumulated amortization	167	162
Other intangible assets, net	189	188
Customer Lists and Other [Member]
Amortized intangible assets:
Other intangible assets, gross	629	621
Other intangible assets, accumulated amortization	115	103
Other intangible assets, net	$ 514	$ 518